shaon, Author at Coding Hunt

A Retrofit util class help to make server connection easy

March 22, 2020shaonLeave a comment

import android.content.Context
import com.mediasoft.common.interfaces.RetryCallBackForNoInternet
import com.mediasoft.common.utils.C
import com.mediasoft.common.utils.D
import com.mediasoft.common.utils.Lg
import com.mediasoft.common.utils.U
import com.mediasoft.connectmediasoft.BuildConfig
import io.reactivex.schedulers.Schedulers
import okhttp3.OkHttpClient
import okhttp3.ResponseBody
import okhttp3.logging.HttpLoggingInterceptor
import org.json.JSONArray
import org.json.JSONException
import org.json.JSONObject
import retrofit2.Response
import retrofit2.Retrofit
import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory
import retrofit2.converter.gson.GsonConverterFactory
import java.util.concurrent.TimeUnit

object Rester {
    private const val TAG = "Rester"

    fun executeRetrofit(
        context: Context,
        baseUrl: String = C.MAIN_URL,
        isToPromptNet: Boolean = false
    ): Retrofit? {
        return if (!U.isNetConnected(context)) {
            // show dialog to turn on internet
            if (isToPromptNet) {
                D.showNoInternetDialog(context, RetryCallBackForNoInternet {
                    executeRetrofit(context, baseUrl, isToPromptNet)
                })
            }

            null
        } else RestApiClient.getRetrofit(baseUrl)
    }

    // Parsing json object
    fun jo(response: Response&lt;ResponseBody&gt;): JSONObject {
        var jo: JSONObject
        try {
            jo = JSONObject(response.body()?.string() ?: "")
        } catch (e: JSONException) {
            jo = JSONObject()
            e.printStackTrace()
        }
        if (jo.length() &gt; 0)
            Lg.d(TAG, jo.toString())

        return jo
    }

    // Parsing json Array
    fun ja(response: Response&lt;ResponseBody&gt;): JSONArray {
        var ja: JSONArray
        try {
            ja = JSONArray(response.body()?.string() ?: "")
        } catch (e: JSONException) {
            ja = JSONArray()
            e.printStackTrace()
        }
        if (ja.length() &gt; 0)
            Lg.d(TAG, ja.toString())

        return ja
    }
}

private object RestApiClient {
    private var retrofit: Retrofit? = null
    private var okHttpClient: OkHttpClient? = null
    private var loggingInterceptor: HttpLoggingInterceptor? = null
    private var rxAdapter = RxJava2CallAdapterFactory.createWithScheduler(Schedulers.io())


    fun getRetrofit(baseUrl: String): Retrofit {
        if (retrofit == null) {
            retrofit = create(baseUrl)
        }
        return retrofit!!
    }

    private fun create(baseUrl: String): Retrofit {
        // Level.BODY
        /*shows all the information of a request. We just want to see info when app
        * is in debug mode*/
        loggingInterceptor = HttpLoggingInterceptor()
        if (BuildConfig.DEBUG)
            loggingInterceptor!!.level = HttpLoggingInterceptor.Level.BODY
        else loggingInterceptor!!.level = HttpLoggingInterceptor.Level.BASIC

        okHttpClient = OkHttpClient.Builder().addInterceptor(loggingInterceptor!!)
            .readTimeout(5, TimeUnit.MINUTES)
            .connectTimeout(5, TimeUnit.MINUTES)
            .build()

        return Retrofit.Builder()
            .baseUrl(baseUrl)
            .addConverterFactory(GsonConverterFactory.create())
            .addCallAdapterFactory(rxAdapter)
            .client(okHttpClient!!)
            .build()
    }
}

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import android.content.Context

import com.mediasoft.common.interfaces.RetryCallBackForNoInternet

import com.mediasoft.common.utils.C

import com.mediasoft.common.utils.D

import com.mediasoft.common.utils.Lg

import com.mediasoft.common.utils.U

import com.mediasoft.connectmediasoft.BuildConfig

import io.reactivex.schedulers.Schedulers

import okhttp3.OkHttpClient

import okhttp3.ResponseBody

import okhttp3.logging.HttpLoggingInterceptor

import org.json.JSONArray

import org.json.JSONException

import org.json.JSONObject

import retrofit2.Response

import retrofit2.Retrofit

import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory

import retrofit2.converter.gson.GsonConverterFactory

import java.util.concurrent.TimeUnit

object Rester {

private const val TAG = "Rester"

fun executeRetrofit(

context: Context,

baseUrl: String = C.MAIN_URL,

isToPromptNet: Boolean = false

): Retrofit? {

return if (!U.isNetConnected(context)) {

// show dialog to turn on internet

if (isToPromptNet) {

D.showNoInternetDialog(context, RetryCallBackForNoInternet {

executeRetrofit(context, baseUrl, isToPromptNet)

})

}

null

} else RestApiClient.getRetrofit(baseUrl)

}

// Parsing json object

fun jo(response: Response<ResponseBody>): JSONObject {

var jo: JSONObject

try {

jo = JSONObject(response.body()?.string() ?: "")

} catch (e: JSONException) {

jo = JSONObject()

e.printStackTrace()

}

if (jo.length() > 0)

Lg.d(TAG, jo.toString())

return jo

}

// Parsing json Array

fun ja(response: Response<ResponseBody>): JSONArray {

var ja: JSONArray

try {

ja = JSONArray(response.body()?.string() ?: "")

} catch (e: JSONException) {

ja = JSONArray()

e.printStackTrace()

}

if (ja.length() > 0)

Lg.d(TAG, ja.toString())

return ja

}

private object RestApiClient {

private var retrofit: Retrofit? = null

private var okHttpClient: OkHttpClient? = null

private var loggingInterceptor: HttpLoggingInterceptor? = null

private var rxAdapter = RxJava2CallAdapterFactory.createWithScheduler(Schedulers.io())

fun getRetrofit(baseUrl: String): Retrofit {

if (retrofit == null) {

retrofit = create(baseUrl)

}

return retrofit!!

}

private fun create(baseUrl: String): Retrofit {

// Level.BODY

/*shows all the information of a request. We just want to see info when app

* is in debug mode*/

loggingInterceptor = HttpLoggingInterceptor()

if (BuildConfig.DEBUG)

loggingInterceptor!!.level = HttpLoggingInterceptor.Level.BODY

else loggingInterceptor!!.level = HttpLoggingInterceptor.Level.BASIC

okHttpClient = OkHttpClient.Builder().addInterceptor(loggingInterceptor!!)

.readTimeout(5, TimeUnit.MINUTES)

.connectTimeout(5, TimeUnit.MINUTES)

.build()

return Retrofit.Builder()

.baseUrl(baseUrl)

.addConverterFactory(GsonConverterFactory.create())

.addCallAdapterFactory(rxAdapter)

.client(okHttpClient!!)

.build()

}

object D {

    private val TAG = D::class.java.simpleName


    fun showNoInternetDialog(context: Context, rc4NoInt: RetryCallBackForNoInternet?) {
        MaterialDialog(context)
            .show {
                cancelOnTouchOutside(false)
                cancelable(false)
                message(null, "No internet! Please connect to internet ...")
                positiveButton(null,"Retry") {
                    if (rc4NoInt != null) {
                        dismiss()
                        rc4NoInt.retry()
                    }
                }
                negativeButton(null,"Settings") {
                    dismiss()
                    val intent = Intent(Settings.ACTION_WIFI_SETTINGS)
                    context.startActivity(intent)
                }
            }
    }
}

object D {

private val TAG = D::class.java.simpleName

fun showNoInternetDialog(context: Context, rc4NoInt: RetryCallBackForNoInternet?) {

MaterialDialog(context)

.show {

cancelOnTouchOutside(false)

cancelable(false)

message(null, "No internet! Please connect to internet ...")

positiveButton(null,"Retry") {

if (rc4NoInt != null) {

dismiss()

rc4NoInt.retry()

}

negativeButton(null,"Settings") {

dismiss()

val intent = Intent(Settings.ACTION_WIFI_SETTINGS)

context.startActivity(intent)

}

public interface RetryCallBackForNoInternet {
    void retry();
}

public interface RetryCallBackForNoInternet {

void retry();

}

Upload image into server converting image into base64

March 19, 2020shaonLeave a comment

Convert to base64

val bitmap = BitmapFactory.decodeFile("path")

val stream = ByteArrayOutputStream()
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream)
val imageInByteArray = stream.toByteArray()
val encodeStr = Base64.encodeToString(imageInByteArray, Base64.DEFAULT)

val bitmap = BitmapFactory.decodeFile("path")

val stream = ByteArrayOutputStream()

bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream)

val imageInByteArray = stream.toByteArray()

val encodeStr = Base64.encodeToString(imageInByteArray, Base64.DEFAULT)

Upload image using encoded string

private fun upload(encodeStr: String) {
    val retrofit = Rester.executeRetrofit(
        context = this
    )

    retrofit?.let {
        val service = retrofit.create(ApiService::class.java)
        val call = service.uploadImage(encodeStr)

        call.subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe({
                val jo = Rester.jo(it)

            }, {
                it.printStackTrace()
            })
    }
}

private fun upload(encodeStr: String) {

val retrofit = Rester.executeRetrofit(

context = this

)

retrofit?.let {

val service = retrofit.create(ApiService::class.java)

val call = service.uploadImage(encodeStr)

call.subscribeOn(Schedulers.io())

.observeOn(AndroidSchedulers.mainThread())

.subscribe({

val jo = Rester.jo(it)

}, {

it.printStackTrace()

})

}

interface ApiService {

    @FormUrlEncoded
    @POST("base64_image_upload/upload_file.php")
    fun uploadImage(@Field("base64str") encodeStr: String): Observable&lt;Response&lt;ResponseBody&gt;&gt;

}

interface ApiService {

@FormUrlEncoded

@POST("base64_image_upload/upload_file.php")

fun uploadImage(@Field("base64str") encodeStr: String): Observable<Response<ResponseBody>>

}

object D {

    private val TAG = D::class.java.simpleName


    fun showNoInternetDialog(context: Context, rc4NoInt: RetryCallBackForNoInternet?) {
        MaterialDialog(context)
            .show {
                cancelOnTouchOutside(false)
                cancelable(false)
                message(null, "No internet! Please connect to internet ...")
                positiveButton(null,"Retry") {
                    if (rc4NoInt != null) {
                        dismiss()
                        rc4NoInt.retry()
                    }
                }
                negativeButton(null,"Settings") {
                    dismiss()
                    val intent = Intent(Settings.ACTION_WIFI_SETTINGS)
                    context.startActivity(intent)
                }
            }
    }

}

object D {

private val TAG = D::class.java.simpleName

fun showNoInternetDialog(context: Context, rc4NoInt: RetryCallBackForNoInternet?) {

MaterialDialog(context)

.show {

cancelOnTouchOutside(false)

cancelable(false)

message(null, "No internet! Please connect to internet ...")

positiveButton(null,"Retry") {

if (rc4NoInt != null) {

dismiss()

rc4NoInt.retry()

}

negativeButton(null,"Settings") {

dismiss()

val intent = Intent(Settings.ACTION_WIFI_SETTINGS)

context.startActivity(intent)

}

import android.content.Context
import android.util.Log
import io.reactivex.schedulers.Schedulers
import okhttp3.OkHttpClient
import okhttp3.ResponseBody
import okhttp3.logging.HttpLoggingInterceptor
import org.json.JSONArray
import org.json.JSONException
import org.json.JSONObject
import retrofit2.Response
import retrofit2.Retrofit
import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory
import retrofit2.converter.gson.GsonConverterFactory
import java.util.concurrent.TimeUnit

object Rester {
    private const val TAG = "Rester"

    fun executeRetrofit(
        context: Context,
        baseUrl: String = "http://www.shaoniiuc.com/",
        isToPromptNet: Boolean = false
    ): Retrofit? {
        return if (!U.isNetConnected(context)) {
            // show dialog to turn on internet
            if (isToPromptNet) {
                D.showNoInternetDialog(context, RetryCallBackForNoInternet {
                    executeRetrofit(context, baseUrl, isToPromptNet)
                })
            }

            null
        } else RestApiClient.getRetrofit(baseUrl)
    }

    // Parsing json object
    fun jo(response: Response&lt;ResponseBody&gt;): JSONObject {
        var jo: JSONObject
        try {
            jo = JSONObject(response.body()?.string() ?: "")
        } catch (e: JSONException) {
            jo = JSONObject()
            e.printStackTrace()
        }
        if (jo.length() &gt; 0)
            Log.d(TAG, jo.toString())

        return jo
    }

    // Parsing json Array
    fun ja(response: Response&lt;ResponseBody&gt;): JSONArray {
        var ja: JSONArray
        try {
            ja = JSONArray(response.body()?.string() ?: "")
        } catch (e: JSONException) {
            ja = JSONArray()
            e.printStackTrace()
        }
        if (ja.length() &gt; 0)
            Log.d(TAG, ja.toString())

        return ja
    }
}

private object RestApiClient {
    private var retrofit: Retrofit? = null
    private var okHttpClient: OkHttpClient? = null
    private var loggingInterceptor: HttpLoggingInterceptor? = null
    private var rxAdapter = RxJava2CallAdapterFactory.createWithScheduler(Schedulers.io())


    fun getRetrofit(baseUrl: String): Retrofit {
        if (retrofit == null) {
            retrofit = create(baseUrl)
        }
        return retrofit!!
    }

    private fun create(baseUrl: String): Retrofit {
        // Level.BODY
        /*shows all the information of a request. We just want to see info when app
        * is in debug mode*/
        loggingInterceptor = HttpLoggingInterceptor()
        if (BuildConfig.DEBUG)
            loggingInterceptor!!.level = HttpLoggingInterceptor.Level.BODY
        else loggingInterceptor!!.level = HttpLoggingInterceptor.Level.BASIC

        okHttpClient = OkHttpClient.Builder().addInterceptor(loggingInterceptor!!)
            .readTimeout(5, TimeUnit.MINUTES)
            .connectTimeout(5, TimeUnit.MINUTES)
            .build()

        return Retrofit.Builder()
            .baseUrl(baseUrl)
            .addConverterFactory(GsonConverterFactory.create())
            .addCallAdapterFactory(rxAdapter)
            .client(okHttpClient!!)
            .build()
    }
}

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import android.content.Context

import android.util.Log

import io.reactivex.schedulers.Schedulers

import okhttp3.OkHttpClient

import okhttp3.ResponseBody

import okhttp3.logging.HttpLoggingInterceptor

import org.json.JSONArray

import org.json.JSONException

import org.json.JSONObject

import retrofit2.Response

import retrofit2.Retrofit

import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory

import retrofit2.converter.gson.GsonConverterFactory

import java.util.concurrent.TimeUnit

object Rester {

private const val TAG = "Rester"

fun executeRetrofit(

context: Context,

baseUrl: String = "http://www.shaoniiuc.com/",

isToPromptNet: Boolean = false

): Retrofit? {

return if (!U.isNetConnected(context)) {

// show dialog to turn on internet

if (isToPromptNet) {

D.showNoInternetDialog(context, RetryCallBackForNoInternet {

executeRetrofit(context, baseUrl, isToPromptNet)

})

}

null

} else RestApiClient.getRetrofit(baseUrl)

}

// Parsing json object

fun jo(response: Response<ResponseBody>): JSONObject {

var jo: JSONObject

try {

jo = JSONObject(response.body()?.string() ?: "")

} catch (e: JSONException) {

jo = JSONObject()

e.printStackTrace()

}

if (jo.length() > 0)

Log.d(TAG, jo.toString())

return jo

}

// Parsing json Array

fun ja(response: Response<ResponseBody>): JSONArray {

var ja: JSONArray

try {

ja = JSONArray(response.body()?.string() ?: "")

} catch (e: JSONException) {

ja = JSONArray()

e.printStackTrace()

}

if (ja.length() > 0)

Log.d(TAG, ja.toString())

return ja

}

private object RestApiClient {

private var retrofit: Retrofit? = null

private var okHttpClient: OkHttpClient? = null

private var loggingInterceptor: HttpLoggingInterceptor? = null

private var rxAdapter = RxJava2CallAdapterFactory.createWithScheduler(Schedulers.io())

fun getRetrofit(baseUrl: String): Retrofit {

if (retrofit == null) {

retrofit = create(baseUrl)

}

return retrofit!!

}

private fun create(baseUrl: String): Retrofit {

// Level.BODY

/*shows all the information of a request. We just want to see info when app

* is in debug mode*/

loggingInterceptor = HttpLoggingInterceptor()

if (BuildConfig.DEBUG)

loggingInterceptor!!.level = HttpLoggingInterceptor.Level.BODY

else loggingInterceptor!!.level = HttpLoggingInterceptor.Level.BASIC

okHttpClient = OkHttpClient.Builder().addInterceptor(loggingInterceptor!!)

.readTimeout(5, TimeUnit.MINUTES)

.connectTimeout(5, TimeUnit.MINUTES)

.build()

return Retrofit.Builder()

.baseUrl(baseUrl)

.addConverterFactory(GsonConverterFactory.create())

.addCallAdapterFactory(rxAdapter)

.client(okHttpClient!!)

.build()

}

public interface RetryCallBackForNoInternet {
    void retry();
}

public interface RetryCallBackForNoInternet {

void retry();

}

import android.annotation.SuppressLint

import android.content.Context

import android.net.ConnectivityManager


object U {

    fun isNetConnected(context: Context?): Boolean {
        if (context == null)
            return false
        val connectivityManager = context
            .getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager

        @SuppressLint("MissingPermission")
        val activeNetworkInfo = connectivityManager.activeNetworkInfo
        return activeNetworkInfo != null &amp;&amp; activeNetworkInfo.isConnected
    }


}

import android.annotation.SuppressLint

import android.content.Context

import android.net.ConnectivityManager

object U {

fun isNetConnected(context: Context?): Boolean {

if (context == null)

return false

val connectivityManager = context

.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager

@SuppressLint("MissingPermission")

val activeNetworkInfo = connectivityManager.activeNetworkInfo

return activeNetworkInfo != null && activeNetworkInfo.isConnected

}

Dependency

implementation 'com.github.esafirm.android-image-picker:imagepicker:2.2.0'
// for experimental rx picker
implementation 'com.github.esafirm.android-image-picker:rximagepicker:2.2.0'
// If you have a problem with Glide, please use the same Glide version or simply open an issue
implementation 'com.github.bumptech.glide:glide:4.5.0'

/** Retrofit*/
implementation "com.squareup.retrofit2:retrofit:$retrofitVersion"
implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"
implementation "com.squareup.okhttp3:logging-interceptor:3.14.2"
implementation 'com.squareup.retrofit2:adapter-rxjava2:2.6.1'

// Material dialog
implementation 'com.afollestad.material-dialogs:core:3.1.1'

// RxJava
implementation 'io.reactivex.rxjava2:rxjava:2.2.11'

implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'

implementation 'com.github.esafirm.android-image-picker:imagepicker:2.2.0'

// for experimental rx picker

implementation 'com.github.esafirm.android-image-picker:rximagepicker:2.2.0'

// If you have a problem with Glide, please use the same Glide version or simply open an issue

implementation 'com.github.bumptech.glide:glide:4.5.0'

/** Retrofit*/

implementation "com.squareup.retrofit2:retrofit:$retrofitVersion"

implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"

implementation "com.squareup.okhttp3:logging-interceptor:3.14.2"

implementation 'com.squareup.retrofit2:adapter-rxjava2:2.6.1'

// Material dialog

implementation 'com.afollestad.material-dialogs:core:3.1.1'

// RxJava

implementation 'io.reactivex.rxjava2:rxjava:2.2.11'

implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'

Convert an image to base64 and decode from base64

March 19, 2020shaonLeave a comment

Convert image to base64

val bitmap = BitmapFactory.decodeFile("path")

val stream = ByteArrayOutputStream()
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream)
val imageInByteArray = stream.toByteArray()
val encodeStr = Base64.encodeToString(imageInByteArray, Base64.DEFAULT)

val bitmap = BitmapFactory.decodeFile("path")

val stream = ByteArrayOutputStream()

bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream)

val imageInByteArray = stream.toByteArray()

val encodeStr = Base64.encodeToString(imageInByteArray, Base64.DEFAULT)

Decode base64 to bitmap

val decodedStr = Base64.decode(encodeStr, Base64.DEFAULT)
val decodedBitmap = BitmapFactory.decodeByteArray(decodedStr, 0, decodedStr.size)

1 2	val decodedStr = Base64.decode(encodeStr, Base64.DEFAULT) val decodedBitmap = BitmapFactory.decodeByteArray(decodedStr, 0, decodedStr.size)

Android Custom Dialog Example

February 24, 2020February 24, 2020shaonLeave a comment

Dependency

implementation 'com.afollestad.material-dialogs:core:3.3.0'
implementation 'androidx.cardview:cardview:1.0.0'

1 2	implementation 'com.afollestad.material-dialogs:core:3.3.0' implementation 'androidx.cardview:cardview:1.0.0'

Add it to your style.xml

&lt;style name="AppTheme.DialogTheme" parent="Theme.AppCompat.Light.Dialog"&gt;
    &lt;item name="android:windowBackground"&gt;@android:color/transparent&lt;/item&gt;
    &lt;item name="android:windowCloseOnTouchOutside"&gt;true&lt;/item&gt;
&lt;/style&gt;

<item name="android:windowBackground">@android:color/transparent</item>

</style>

Add them to drawable folder Rectangle Shape

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="@android:color/transparent" />
    <stroke
        android:width="1dp"
        android:color="@android:color/holo_orange_dark" />
    <corners

        android:bottomLeftRadius="4dp"
        android:bottomRightRadius="4dp"
        android:topLeftRadius="4dp"
        android:topRightRadius="4dp" />
</shape>

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android="http://schemas.android.com/apk/res/android"

android:shape="rectangle">

<stroke

android:width="1dp"

android:color="@android:color/holo_orange_dark" />

<corners

android:bottomLeftRadius="4dp"

android:bottomRightRadius="4dp"

android:topLeftRadius="4dp"

android:topRightRadius="4dp" />

</shape>

Circle Shape

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">

    <solid
        android:color="@android:color/white"/>

    <size
        android:width="120dp"
        android:height="120dp"/>
</shape>

<?xml version="1.0" encoding="utf-8"?>

<shape

xmlns:android="http://schemas.android.com/apk/res/android"

android:shape="oval">

<solid

android:color="@android:color/white"/>

<size

android:width="120dp"

android:height="120dp"/>

</shape>

Top middle circle dialog view

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_margin="32dp"
    android:background="@android:color/transparent"
    android:layout_height="wrap_content">

   <FrameLayout
       android:id="@+id/fl"
       android:background="@android:color/holo_blue_bright"
       android:layout_margin="32dp"
       android:layout_width="match_parent"
       android:layout_height="200dp">

   </FrameLayout>

   <ImageView
       android:src="@drawable/ic_add_black_24dp"
       android:background="@drawable/circle"
       android:layout_marginTop="-24dp"
       android:layout_centerInParent="true"
       android:layout_alignTop="@id/fl"
       android:layout_width="48dp"
       android:padding="8dp"
       android:layout_height="48dp"/>

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_margin="32dp"

android:background="@android:color/transparent"

android:layout_height="wrap_content">

<FrameLayout

android:id="@+id/fl"

android:background="@android:color/holo_blue_bright"

android:layout_margin="32dp"

android:layout_width="match_parent"

android:layout_height="200dp">

</FrameLayout>

<ImageView

android:src="@drawable/ic_add_black_24dp"

android:background="@drawable/circle"

android:layout_marginTop="-24dp"

android:layout_centerInParent="true"

android:layout_alignTop="@id/fl"

android:layout_width="48dp"

android:padding="8dp"

android:layout_height="48dp"/>

</RelativeLayout>

Using Constraing Layout

&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_margin="32dp"
    android:background="@android:color/transparent"
    android:layout_height="wrap_content"&gt;

   &lt;FrameLayout
       android:id="@+id/fl"
       android:layout_width="match_parent"
       android:layout_height="200dp"
       android:layout_margin="32dp"
       android:background="@android:color/holo_blue_bright"
       app:layout_constraintBottom_toBottomOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintStart_toStartOf="parent"
       app:layout_constraintTop_toTopOf="parent"&gt;

   &lt;/FrameLayout&gt;

   &lt;ImageView
       android:translationY="-24dp"
       android:layout_width="48dp"
       android:layout_height="48dp"
       android:background="@drawable/circle"
       android:padding="8dp"
       android:src="@drawable/ic_add_black_24dp"
       app:layout_constraintEnd_toEndOf="@+id/fl"
       app:layout_constraintStart_toStartOf="@+id/fl"
       app:layout_constraintTop_toTopOf="@+id/fl" /&gt;

&lt;/androidx.constraintlayout.widget.ConstraintLayout&gt;

<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_margin="32dp"

android:background="@android:color/transparent"

android:layout_height="wrap_content">

<FrameLayout

android:id="@+id/fl"

android:layout_width="match_parent"

android:layout_height="200dp"

android:layout_margin="32dp"

android:background="@android:color/holo_blue_bright"

app:layout_constraintBottom_toBottomOf="parent"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toStartOf="parent"

app:layout_constraintTop_toTopOf="parent">

</FrameLayout>

<ImageView

android:translationY="-24dp"

android:layout_width="48dp"

android:layout_height="48dp"

android:background="@drawable/circle"

android:padding="8dp"

android:src="@drawable/ic_add_black_24dp"

app:layout_constraintEnd_toEndOf="@+id/fl"

app:layout_constraintStart_toStartOf="@+id/fl"

app:layout_constraintTop_toTopOf="@+id/fl" />

</androidx.constraintlayout.widget.ConstraintLayout>

Input Dialog with top end cancel button

<FrameLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:layout_margin="16dp"
    android:background="@android:color/transparent"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools">

    <androidx.cardview.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="16dp"
        app:cardElevation="24dp">

        <RelativeLayout
            android:id="@+id/edit_name"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <TextView
                android:id="@+id/tvHeadTableNo"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentTop="true"
                android:layout_marginBottom="8dp"
                android:layout_marginLeft="16dp"
                android:layout_marginStart="16dp"
                android:layout_marginTop="16dp"
                android:text="@string/enter_token_no_for_the_order"
                android:textColor="@android:color/black"
                android:textSize="18sp"
                android:textStyle="bold" />

            <com.google.android.material.textfield.TextInputLayout
                android:id="@+id/evOrderTableNoContainer"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@+id/tvHeadTableNo"
                android:layout_marginEnd="16dp"
                android:layout_marginLeft="16dp"
                android:layout_marginRight="16dp"
                android:layout_marginStart="16dp">

                <EditText
                    android:id="@+id/evOrderTableNo"
                    android:layout_width="match_parent"
                    android:layout_height="48dp"
                    android:layout_gravity="center_horizontal"
                    android:layout_marginBottom="8dp"
                    android:background="@android:color/transparent"
                    android:hint="Token"
                    android:inputType="number"
                    android:maxLength="8"
                    android:maxLines="1"
                    android:paddingBottom="8dp"
                    android:paddingEnd="16dp"
                    android:paddingLeft="16dp"
                    android:paddingRight="16dp"
                    android:paddingStart="16dp"
                    android:paddingTop="8dp"
                    android:textColor="@android:color/black" />
            </com.google.android.material.textfield.TextInputLayout>

            <Button
                android:id="@+id/btnTableNoDoneBtn"
                android:layout_width="match_parent"
                android:layout_height="32dp"
                android:layout_below="@+id/evOrderTableNoContainer"
                android:layout_marginEnd="16dp"
                android:layout_marginLeft="16dp"
                android:layout_marginRight="16dp"
                android:layout_marginStart="16dp"
                android:background="@drawable/rectange_btn"
                android:gravity="center"
                android:text="@string/done"
                android:textColor="@android:color/holo_orange_dark"
                android:textStyle="bold" />

            <ProgressBar
                android:id="@+id/pbDialogInputTableNo"
                android:layout_width="32dp"
                android:layout_height="32dp"
                android:layout_alignLeft="@+id/btnTableNoDoneBtn"
                android:layout_alignStart="@+id/btnTableNoDoneBtn"
                android:layout_alignTop="@+id/btnTableNoDoneBtn"
                android:layout_marginLeft="4dp"
                android:layout_marginStart="4dp"
                android:padding="4dp"
                android:visibility="gone"
                tools:visibility="visible" />

            <TextView
                android:layout_marginTop="4dp"
                android:layout_marginBottom="4dp"
                android:id="@+id/tvOr"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/btnTableNoDoneBtn"
                android:layout_centerInParent="true"
                android:text="@string/or"
                android:textSize="14sp" />

            <Button
                android:id="@+id/btnHomeDelivery"
                android:layout_width="match_parent"
                android:layout_height="32dp"
                android:layout_below="@+id/tvOr"
                android:layout_marginBottom="16dp"
                android:layout_marginEnd="16dp"
                android:layout_marginLeft="16dp"
                android:layout_marginRight="16dp"
                android:layout_marginStart="16dp"
                android:background="@drawable/rectange_btn"
                android:gravity="center"
                android:text="@string/home_delivery"
                android:textColor="@android:color/holo_orange_dark"
                android:textStyle="bold" />
        </RelativeLayout>
    </androidx.cardview.widget.CardView>

    <ImageView
        android:id="@+id/ivCloseTableNo"
        android:layout_width="32dp"
        android:layout_height="32dp"
        android:layout_gravity="end|top"
        android:background="@drawable/circle"
        android:elevation="25dp"
        android:padding="4dp"
        android:src="@drawable/ic_close_black_24dp"
        tools:ignore="UnusedAttribute" />
</FrameLayout>

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<FrameLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:layout_margin="16dp"

android:background="@android:color/transparent"

xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools">

<androidx.cardview.widget.CardView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_margin="16dp"

app:cardElevation="24dp">

<RelativeLayout

android:id="@+id/edit_name"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="vertical">

<TextView

android:id="@+id/tvHeadTableNo"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_alignParentTop="true"

android:layout_marginBottom="8dp"

android:layout_marginLeft="16dp"

android:layout_marginStart="16dp"

android:layout_marginTop="16dp"

android:text="@string/enter_token_no_for_the_order"

android:textColor="@android:color/black"

android:textSize="18sp"

android:textStyle="bold" />

<com.google.android.material.textfield.TextInputLayout

android:id="@+id/evOrderTableNoContainer"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_below="@+id/tvHeadTableNo"

android:layout_marginEnd="16dp"

android:layout_marginLeft="16dp"

android:layout_marginRight="16dp"

android:layout_marginStart="16dp">

<EditText

android:id="@+id/evOrderTableNo"

android:layout_width="match_parent"

android:layout_height="48dp"

android:layout_gravity="center_horizontal"

android:layout_marginBottom="8dp"

android:background="@android:color/transparent"

android:hint="Token"

android:inputType="number"

android:maxLength="8"

android:maxLines="1"

android:paddingBottom="8dp"

android:paddingEnd="16dp"

android:paddingLeft="16dp"

android:paddingRight="16dp"

android:paddingStart="16dp"

android:paddingTop="8dp"

android:textColor="@android:color/black" />

</com.google.android.material.textfield.TextInputLayout>

<Button

android:id="@+id/btnTableNoDoneBtn"

android:layout_width="match_parent"

android:layout_height="32dp"

android:layout_below="@+id/evOrderTableNoContainer"

android:layout_marginEnd="16dp"

android:layout_marginLeft="16dp"

android:layout_marginRight="16dp"

android:layout_marginStart="16dp"

android:background="@drawable/rectange_btn"

android:gravity="center"

android:text="@string/done"

android:textColor="@android:color/holo_orange_dark"

android:textStyle="bold" />

<ProgressBar

android:id="@+id/pbDialogInputTableNo"

android:layout_width="32dp"

android:layout_height="32dp"

android:layout_alignLeft="@+id/btnTableNoDoneBtn"

android:layout_alignStart="@+id/btnTableNoDoneBtn"

android:layout_alignTop="@+id/btnTableNoDoneBtn"

android:layout_marginLeft="4dp"

android:layout_marginStart="4dp"

android:padding="4dp"

android:visibility="gone"

tools:visibility="visible" />

<TextView

android:layout_marginTop="4dp"

android:layout_marginBottom="4dp"

android:id="@+id/tvOr"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@+id/btnTableNoDoneBtn"

android:layout_centerInParent="true"

android:text="@string/or"

android:textSize="14sp" />

<Button

android:id="@+id/btnHomeDelivery"

android:layout_width="match_parent"

android:layout_height="32dp"

android:layout_below="@+id/tvOr"

android:layout_marginBottom="16dp"

android:layout_marginEnd="16dp"

android:layout_marginLeft="16dp"

android:layout_marginRight="16dp"

android:layout_marginStart="16dp"

android:background="@drawable/rectange_btn"

android:gravity="center"

android:text="@string/home_delivery"

android:textColor="@android:color/holo_orange_dark"

android:textStyle="bold" />

</RelativeLayout>

</androidx.cardview.widget.CardView>

<ImageView

android:id="@+id/ivCloseTableNo"

android:layout_width="32dp"

android:layout_height="32dp"

android:layout_gravity="end|top"

android:background="@drawable/circle"

android:elevation="25dp"

android:padding="4dp"

android:src="@drawable/ic_close_black_24dp"

tools:ignore="UnusedAttribute" />

</FrameLayout>

Initialize from activity or fragment using these below code

btnMiddleCircleDialog.setOnClickListener {
    MaterialDialog(this@MainActivity).show {
        setTheme(R.style.AppTheme_DialogTheme)
        setContentView(R.layout.dialog_with_top_middle_circle_view)
    }
}

btnDialogInputTableNo.setOnClickListener {
    MaterialDialog(this@MainActivity).show {
        setTheme(R.style.AppTheme_DialogTheme)
        setContentView(R.layout.dialog_input_table_no)
    }
}

btnMiddleCircleDialog.setOnClickListener {

MaterialDialog(this@MainActivity).show {

setTheme(R.style.AppTheme_DialogTheme)

setContentView(R.layout.dialog_with_top_middle_circle_view)

}

btnDialogInputTableNo.setOnClickListener {

MaterialDialog(this@MainActivity).show {

setTheme(R.style.AppTheme_DialogTheme)

setContentView(R.layout.dialog_input_table_no)

}

Dagger in Action with Retrofit-2, RxJava 2 Part 1

January 26, 2020January 26, 2020shaonLeave a comment

Why should we use it? This may be the first question comes to your mind, r8? isn’t it? Ok, let me explain it. I was a beginner in Android App Development. That time learning a new thing was tedious for me. But I overcame it. Day by day, every developer overcomes it. It is the…

Android MVVM Pattern Tutorial

January 16, 2020January 16, 2020shaonLeave a comment

Android MVVM Pattern MVVM -> Model, View , ViewModel (MVVM Pattern) Model − এটা শুধু ডাটা ধরে রাখে, এখানে লজিকেল কোন কাজ করা হয় না। ViewModel – লজিকেল কাজ গুলো এখানে করা হয় এবং এটা ভিউ ও মডেলের মধ্যে সংযোগ…

Android LiveData with Kotlin Coroutine + Flow

October 31, 2019October 31, 2019shaonLeave a comment

Here I have tried to show two procedures to implement Room using Kotlin Coroutine. Using Flow Reactive pattern

import androidx.room.Dao
import androidx.room.Insert
import androidx.room.OnConflictStrategy
import androidx.room.Query

import com.durbinlabs.roomdemo.model.Client
import kotlinx.coroutines.flow.Flow

/**
 * Created by Shaon on 31/10/2019.
 */

@Dao
interface ClientDao {
    @Query("SELECT * FROM client")
    fun all(): Flow<List<Client>>

    @Insert(onConflict = OnConflictStrategy.IGNORE)
    suspend fun insert(vararg clients: Client)

    @Query("DELETE FROM client")
    suspend fun removeAllClients()
}

import androidx.room.Dao

import androidx.room.Insert

import androidx.room.OnConflictStrategy

import androidx.room.Query

import com.durbinlabs.roomdemo.model.Client

import kotlinx.coroutines.flow.Flow

/**

* Created by Shaon on 31/10/2019.

@Dao

interface ClientDao {

@Query("SELECT * FROM client")

fun all(): Flow<List<Client>>

@Insert(onConflict = OnConflictStrategy.IGNORE)

suspend fun insert(vararg clients: Client)

@Query("DELETE FROM client")

suspend fun removeAllClients()

}

import androidx.lifecycle.*
import com.durbinlabs.roomdemo.interfaces.ClientDao
import com.durbinlabs.roomdemo.model.Client
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.flow.flowOn
import kotlinx.coroutines.launch

/**
 * Created by Shaon on 10/30/2019.
 */

class ClientVM constructor(val clientDao: ClientDao) : ViewModel() {

    fun insert(client: Client) = viewModelScope.launch {
        clientDao.insert(client)
    }

    // The stream will run in io dispatcher
    val clients  = clientDao.all().flowOn(Dispatchers.IO).asLiveData()

}

import androidx.lifecycle.*

import com.durbinlabs.roomdemo.interfaces.ClientDao

import com.durbinlabs.roomdemo.model.Client

import kotlinx.coroutines.Dispatchers

import kotlinx.coroutines.flow.flowOn

import kotlinx.coroutines.launch

/**

* Created by Shaon on 10/30/2019.

class ClientVM constructor(val clientDao: ClientDao) : ViewModel() {

fun insert(client: Client) = viewModelScope.launch {

clientDao.insert(client)

}

// The stream will run in io dispatcher

val clients = clientDao.all().flowOn(Dispatchers.IO).asLiveData()

}

Using ViewModel Scope and liveData {} new Asynchronous pattern

import androidx.lifecycle.LiveData
import androidx.room.Dao
import androidx.room.Insert
import androidx.room.OnConflictStrategy
import androidx.room.Query

import com.durbinlabs.roomdemo.model.Client

/**
 * Created by Shaon on 31/10/2019.
 */

@Dao
interface ClientDao {


    Using suspend function
    @Query("SELECT * FROM client")
    suspend fun all(): LiveData<List<Client>>

    @Insert(onConflict = OnConflictStrategy.IGNORE)
    suspend fun insert(vararg clients: Client)

    @Query("DELETE FROM client")
    suspend fun removeAllClients()
}

import androidx.lifecycle.LiveData

import androidx.room.Dao

import androidx.room.Insert

import androidx.room.OnConflictStrategy

import androidx.room.Query

import com.durbinlabs.roomdemo.model.Client

/**

* Created by Shaon on 31/10/2019.

@Dao

interface ClientDao {

Using suspend function

@Query("SELECT * FROM client")

suspend fun all(): LiveData<List<Client>>

@Insert(onConflict = OnConflictStrategy.IGNORE)

suspend fun insert(vararg clients: Client)

@Query("DELETE FROM client")

suspend fun removeAllClients()

}

import androidx.lifecycle.*
import com.durbinlabs.roomdemo.interfaces.ClientDao
import com.durbinlabs.roomdemo.model.Client
import kotlinx.coroutines.launch

/**
 * Created by Shaon on 10/30/2019.
 */

class ClientVM constructor(val clientDao: ClientDao) : ViewModel() {

    fun insert(client: Client) = viewModelScope.launch {
        clientDao.insert(client)
    }

     val clients  = liveData {
         val data = clientDao.all()
         emitSource(data)
     }

}

import androidx.lifecycle.*

import com.durbinlabs.roomdemo.interfaces.ClientDao

import com.durbinlabs.roomdemo.model.Client

import kotlinx.coroutines.launch

/**

* Created by Shaon on 10/30/2019.

class ClientVM constructor(val clientDao: ClientDao) : ViewModel() {

fun insert(client: Client) = viewModelScope.launch {

clientDao.insert(client)

}

val clients = liveData {

val data = clientDao.all()

emitSource(data)

}

To get data in activity or fragment

clientVM.clients
    .observe(this, Observer {
    adapter.addAll(it)
})

clientVM.clients

.observe(this, Observer {

adapter.addAll(it)

})

Helping Gradle Dependency

 //Room
    implementation "androidx.room:room-runtime:$room_version"
    kapt "androidx.room:room-compiler:$room_version"
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
    implementation "androidx.room:room-ktx:$room_version"

    //  LiveData
    implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
    implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.2.0-rc01"

    // ViewModel
    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
    implementation "android.arch.lifecycle:viewmodel:$lifecycle_version"

//Room

implementation "androidx.room:room-runtime:$room_version"

kapt "androidx.room:room-compiler:$room_version"

implementation 'androidx.legacy:legacy-support-v4:1.0.0'

implementation "androidx.room:room-ktx:$room_version"

// LiveData

implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"

implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.2.0-rc01"

// ViewModel

implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"

implementation "android.arch.lifecycle:viewmodel:$lifecycle_version"

Android Receiving location updates in Kotlin

May 29, 2018May 29, 2018shaonLeave a comment

Often we need our user location or need to update user location in our app. This is a simple util class that I build for my pet project. Use this below code as a util class

import android.Manifest
import android.annotation.SuppressLint
import android.app.Activity
import android.content.Context
import android.content.IntentSender
import android.content.pm.PackageManager
import android.os.Looper
import android.support.v4.app.ActivityCompat
import com.google.android.gms.common.api.ResolvableApiException
import com.google.android.gms.location.*
import com.google.android.gms.maps.model.LatLng
import com.google.android.gms.tasks.Task
import com.shaon2017.salahz.interfaces.SimpleCallback

/**
 * Created by Shaon on 4/18/2018.
 * Bismillahir Rohmanir Rohim :)
 */
class InitGeoLocationUpdate {
    companion object {
        private var locationCallBack: LocationCallback? = null
        private var fusedLocationClient: FusedLocationProviderClient? = null
        private val TAG = InitGeoLocationUpdate::class.simpleName
        private lateinit var locationLatLngCallback : SimpleCallback&lt;LatLng&gt;

        fun locationInit(context: Context, locationLatLngCallback: SimpleCallback&lt;LatLng&gt;) {
            this.locationLatLngCallback = locationLatLngCallback
            createLocationRequest(context, getLocationCallBack());
        }

        private fun getLocationCallBack(): LocationCallback {
            if (locationCallBack == null)
                return initLocationCallback()
            return locationCallBack!!
        }


        private fun initLocationCallback(): LocationCallback {
            locationCallBack = object : LocationCallback() {
                override fun onLocationResult(locationResult: LocationResult?) {
                    super.onLocationResult(locationResult)

                    val mCurrentLocation = locationResult!!.lastLocation
                    val mCurrentLatLng = LatLng(mCurrentLocation!!.latitude, mCurrentLocation.longitude)

                    locationLatLngCallback.callback(mCurrentLatLng)

                    Lg.d(TAG!!, "Current Location Latitude: " + mCurrentLatLng.latitude + " Longitude: " +
                            mCurrentLatLng.longitude)
                }
            }
            return locationCallBack!!
        }

        @SuppressLint("RestrictedApi")
        private fun createLocationRequest(context: Context, locationCallback: LocationCallback) {
            val locationRequest = LocationRequest().apply {
                interval = 1000
                fastestInterval = 2000
                priority = LocationRequest.PRIORITY_HIGH_ACCURACY
            }
            buildLocationSettingsRequest(context, locationRequest, locationCallback);
        }

        private fun getFusedLocationClient(context: Context): FusedLocationProviderClient? {
            if (fusedLocationClient == null)
                return createFusedLocationClient(context)

            return fusedLocationClient
        }

        private fun createFusedLocationClient(context: Context): FusedLocationProviderClient? {
            fusedLocationClient = LocationServices.getFusedLocationProviderClient(context)
            return fusedLocationClient
        }

        private val REQUEST_CHECK_SETTINGS = 0x1
        private fun buildLocationSettingsRequest(context: Context, locationRequest: LocationRequest,
                                                 locationCallback: LocationCallback) {

            val builder = LocationSettingsRequest.Builder();
            builder.addLocationRequest(locationRequest).setAlwaysShow(true);
//        val mLocationSettingsRequest = builder.build();

            val client: SettingsClient = LocationServices.getSettingsClient(context)
            val task: Task&lt;LocationSettingsResponse&gt; = client.checkLocationSettings(builder.build())


            task.addOnSuccessListener(context as Activity, {
                if (ActivityCompat.checkSelfPermission(context,
                                Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED)
                    getFusedLocationClient(context)!!.requestLocationUpdates(locationRequest,
                            locationCallback, Looper.myLooper());
            }).addOnFailureListener {
                if (it is ResolvableApiException) {
                    // Location settings are not satisfied, but this can be fixed
                    // by showing the user a dialog.
                    try {
                        // Show the dialog by calling startResolutionForResult(),
                        // and check the result in onActivityResult().
                        it.startResolutionForResult(context as Activity,
                                REQUEST_CHECK_SETTINGS)
                    } catch (sendEx: IntentSender.SendIntentException) {
                        // Ignore the error.
                    }
                }
            }
        }

        fun stopLocationUpdate(context: Context) {
            getFusedLocationClient(context as Activity)!!.removeLocationUpdates(getLocationCallBack())
        }
    }
}

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import android.Manifest

import android.annotation.SuppressLint

import android.app.Activity

import android.content.Context

import android.content.IntentSender

import android.content.pm.PackageManager

import android.os.Looper

import android.support.v4.app.ActivityCompat

import com.google.android.gms.common.api.ResolvableApiException

import com.google.android.gms.location.*

import com.google.android.gms.maps.model.LatLng

import com.google.android.gms.tasks.Task

import com.shaon2017.salahz.interfaces.SimpleCallback

/**

* Created by Shaon on 4/18/2018.

* Bismillahir Rohmanir Rohim :)

class InitGeoLocationUpdate {

companion object {

private var locationCallBack: LocationCallback? = null

private var fusedLocationClient: FusedLocationProviderClient? = null

private val TAG = InitGeoLocationUpdate::class.simpleName

private lateinit var locationLatLngCallback : SimpleCallback<LatLng>

fun locationInit(context: Context, locationLatLngCallback: SimpleCallback<LatLng>) {

this.locationLatLngCallback = locationLatLngCallback

createLocationRequest(context, getLocationCallBack());

}

private fun getLocationCallBack(): LocationCallback {

if (locationCallBack == null)

return initLocationCallback()

return locationCallBack!!

}

private fun initLocationCallback(): LocationCallback {

locationCallBack = object : LocationCallback() {

override fun onLocationResult(locationResult: LocationResult?) {

super.onLocationResult(locationResult)

val mCurrentLocation = locationResult!!.lastLocation

val mCurrentLatLng = LatLng(mCurrentLocation!!.latitude, mCurrentLocation.longitude)

locationLatLngCallback.callback(mCurrentLatLng)

Lg.d(TAG!!, "Current Location Latitude: " + mCurrentLatLng.latitude + " Longitude: " +

mCurrentLatLng.longitude)

}

return locationCallBack!!

}

@SuppressLint("RestrictedApi")

private fun createLocationRequest(context: Context, locationCallback: LocationCallback) {

val locationRequest = LocationRequest().apply {

interval = 1000

fastestInterval = 2000

priority = LocationRequest.PRIORITY_HIGH_ACCURACY

}

buildLocationSettingsRequest(context, locationRequest, locationCallback);

}

private fun getFusedLocationClient(context: Context): FusedLocationProviderClient? {

if (fusedLocationClient == null)

return createFusedLocationClient(context)

return fusedLocationClient

}

private fun createFusedLocationClient(context: Context): FusedLocationProviderClient? {

fusedLocationClient = LocationServices.getFusedLocationProviderClient(context)

return fusedLocationClient

}

private val REQUEST_CHECK_SETTINGS = 0x1

private fun buildLocationSettingsRequest(context: Context, locationRequest: LocationRequest,

locationCallback: LocationCallback) {

val builder = LocationSettingsRequest.Builder();

builder.addLocationRequest(locationRequest).setAlwaysShow(true);

// val mLocationSettingsRequest = builder.build();

val client: SettingsClient = LocationServices.getSettingsClient(context)

val task: Task<LocationSettingsResponse> = client.checkLocationSettings(builder.build())

task.addOnSuccessListener(context as Activity, {

if (ActivityCompat.checkSelfPermission(context,

Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED)

getFusedLocationClient(context)!!.requestLocationUpdates(locationRequest,

locationCallback, Looper.myLooper());

}).addOnFailureListener {

if (it is ResolvableApiException) {

// Location settings are not satisfied, but this can be fixed

// by showing the user a dialog.

try {

// Show the dialog by calling startResolutionForResult(),

// and check the result in onActivityResult().

it.startResolutionForResult(context as Activity,

REQUEST_CHECK_SETTINGS)

} catch (sendEx: IntentSender.SendIntentException) {

// Ignore the error.

}

fun stopLocationUpdate(context: Context) {

getFusedLocationClient(context as Activity)!!.removeLocationUpdates(getLocationCallBack())

}

How to use? Follow the below code call this below code when you need location update. This…

Customization of RestApi call using Retrofit and RxJava in Kotlin

February 27, 2018shaonLeave a comment

Assuming you all are well aware of Retrofit and RxJava. Today I am going to write about how you can customize your RestApi call using Retrofit and RxJava. This will make your project neat and clean. We will build a class from where all our GET and POST request will be handled. Features: Check your internet is…

Android Line Chart Example

January 20, 2018shaonLeave a comment

repositories {
    maven { url "https://jitpack.io" }
}

repositories {

maven { url "https://jitpack.io" }

}

implementation 'com.github.PhilJay:MPAndroidChart:v3.0.3'

1	implementation 'com.github.PhilJay:MPAndroidChart:v3.0.3'

public class MainActivity extends AppCompatActivity {
    LineChart chart;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        chart = findViewById(R.id.chart);

        ArrayList<Entry> entries = new ArrayList<>();
        entries.add(new Entry(0, 4));
        entries.add(new Entry(1, 1));
        entries.add(new Entry(2, 2));
        entries.add(new Entry(3, 4));

        LineDataSet dataSet = new LineDataSet(entries, "Customized values");
        dataSet.setColor(ContextCompat.getColor(this, R.color.colorPrimary));
        dataSet.setValueTextColor(ContextCompat.getColor(this, R.color.colorPrimaryDark));

        //****
        // Controlling X axis
        XAxis xAxis = chart.getXAxis();
        // Set the xAxis position to bottom. Default is top
        xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
        //Customizing x axis value
        final String[] months = new String[]{"Jan", "Feb", "Mar", "Apr"};

        IAxisValueFormatter formatter = new IAxisValueFormatter() {
            @Override
            public String getFormattedValue(float value, AxisBase axis) {
                return months[(int) value];
            }
        };
        xAxis.setGranularity(1f); // minimum axis-step (interval) is 1
        xAxis.setValueFormatter(formatter);

        //***
        // Controlling right side of y axis
        YAxis yAxisRight = chart.getAxisRight();
        yAxisRight.setEnabled(false);

        //***
        // Controlling left side of y axis
        YAxis yAxisLeft = chart.getAxisLeft();
        yAxisLeft.setGranularity(1f);

        // Setting Data
        LineData data = new LineData(dataSet);
        chart.setData(data);
        chart.animateX(2500);
        //refresh
        chart.invalidate();
    }
}

public class MainActivity extends AppCompatActivity {

LineChart chart;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

chart = findViewById(R.id.chart);

ArrayList<Entry> entries = new ArrayList<>();

entries.add(new Entry(0, 4));

entries.add(new Entry(1, 1));

entries.add(new Entry(2, 2));

entries.add(new Entry(3, 4));

LineDataSet dataSet = new LineDataSet(entries, "Customized values");

dataSet.setColor(ContextCompat.getColor(this, R.color.colorPrimary));

dataSet.setValueTextColor(ContextCompat.getColor(this, R.color.colorPrimaryDark));

//****

// Controlling X axis

XAxis xAxis = chart.getXAxis();

// Set the xAxis position to bottom. Default is top

xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);

//Customizing x axis value

final String[] months = new String[]{"Jan", "Feb", "Mar", "Apr"};

IAxisValueFormatter formatter = new IAxisValueFormatter() {

@Override

public String getFormattedValue(float value, AxisBase axis) {

return months[(int) value];

}

};

xAxis.setGranularity(1f); // minimum axis-step (interval) is 1

xAxis.setValueFormatter(formatter);

//***

// Controlling right side of y axis

YAxis yAxisRight = chart.getAxisRight();

yAxisRight.setEnabled(false);

//***

// Controlling left side of y axis

YAxis yAxisLeft = chart.getAxisLeft();

yAxisLeft.setGranularity(1f);

// Setting Data

LineData data = new LineData(dataSet);

chart.setData(data);

chart.animateX(2500);

//refresh

chart.invalidate();

}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.shaon.mpandroidchartdemo.MainActivity">

    <com.github.mikephil.charting.charts.LineChart
        android:id="@+id/chart"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></com.github.mikephil.charting.charts.LineChart>

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context="com.example.shaon.mpandroidchartdemo.MainActivity">

<com.github.mikephil.charting.charts.LineChart

android:id="@+id/chart"

android:layout_width="match_parent"

android:layout_height="match_parent"></com.github.mikephil.charting.charts.LineChart>

</LinearLayout>