Background location tracking in android even if the app get closed

  

activity_main.xml

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

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

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    tools:context=".MainActivity">

    <Button

        android:id="@+id/btn_get"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="Get Location"

        android:layout_margin="20sp"/>

</LinearLayout>

MainActivity.java

import androidx.appcompat.app.AppCompatActivity;

import android.Manifest;

import android.app.AlertDialog;

import android.content.Context;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.IntentSender;

import android.location.LocationManager;

import android.net.Uri;

import android.os.Bundle;

import android.provider.Settings;

import android.view.View;

import android.widget.Button;

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

import com.google.android.gms.location.LocationRequest;

import com.google.android.gms.location.LocationServices;

import com.google.android.gms.location.LocationSettingsRequest;

import com.google.android.gms.location.LocationSettingsResponse;

import com.karumi.dexter.Dexter;

import com.karumi.dexter.MultiplePermissionsReport;

import com.karumi.dexter.PermissionToken;

import com.karumi.dexter.listener.PermissionRequest;

import com.karumi.dexter.listener.multi.MultiplePermissionsListener;

import java.util.List;

public class MainActivity extends AppCompatActivity {

    private Button btn_get;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        final LocationManager manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        btn_get = findViewById(R.id.btn_get);

        btn_get.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {

                    enableLocationSettings();

                } else {

                    requestAppPermissions();

                }

            }

        });

    }

    private void requestAppPermissions() {

        Dexter.withActivity(MainActivity.this)

                .withPermissions(

                        Manifest.permission.ACCESS_FINE_LOCATION,

                        Manifest.permission.ACCESS_COARSE_LOCATION)

                .withListener(new MultiplePermissionsListener() {

                    @Override

                    public void onPermissionsChecked(MultiplePermissionsReport report) {

                        // check if all permissions are granted

                        if (report.areAllPermissionsGranted()) {

                            // do you work now

                            //interact.downloadImage(array);

                            startService(new Intent(MainActivity.this, ForegroundService.class));

                        }

                        // check for permanent denial of any permission

                        if (report.isAnyPermissionPermanentlyDenied()) {

                            // permission is denied permenantly, navigate user to app settings

                            showSettingsDialog();

                            //finish();

                        }

                    }

                    @Override

                    public void onPermissionRationaleShouldBeShown(List<PermissionRequest> permissions, PermissionToken token) {

                        token.continuePermissionRequest();

                    }

                })

                .onSameThread()

                .check();

    }

    private void showSettingsDialog() {

        AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);

        builder.setTitle("Need Permissions");

        builder.setMessage("This app needs permission to use this feature. You can grant them in app settings.");

        builder.setPositiveButton("GOTO SETTINGS", new DialogInterface.OnClickListener() {

            @Override

            public void onClick(DialogInterface dialog, int which) {

                dialog.cancel();

                openSettings();

            }

        });

        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

            @Override

            public void onClick(DialogInterface dialog, int which) {

                dialog.cancel();

            }

        });

        builder.show();

    }

    private void openSettings() {

        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);

        Uri uri = Uri.fromParts("package", getPackageName(), null);

        intent.setData(uri);

        startActivityForResult(intent, 101);

    }

    protected void enableLocationSettings() {

        LocationRequest locationRequest = LocationRequest.create()

                .setInterval(1000)

                .setFastestInterval(3000)

                .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

        LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()

                .addLocationRequest(locationRequest);

        LocationServices

                .getSettingsClient(this)

                .checkLocationSettings(builder.build())

                .addOnSuccessListener(this, (LocationSettingsResponse response) -> {

                    // startUpdatingLocation(...);

                })

                .addOnFailureListener(this, ex -> {

                    if (ex instanceof 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().

                            ResolvableApiException resolvable = (ResolvableApiException) ex;

                            resolvable.startResolutionForResult(this, 123);

                        } catch (IntentSender.SendIntentException sendEx) {

                            // Ignore the error.

                        }

                    }

                });

    }

}

ForegroundService.java

import android.Manifest;

import android.app.NotificationChannel;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.app.Service;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.os.Binder;

import android.os.Build;

import android.os.IBinder;

import android.widget.Toast;

import androidx.core.app.NotificationCompat;

import androidx.core.content.ContextCompat;

import com.google.android.gms.location.FusedLocationProviderClient;

import com.google.android.gms.location.LocationCallback;

import com.google.android.gms.location.LocationRequest;

import com.google.android.gms.location.LocationResult;

import com.google.android.gms.location.LocationServices;

public class ForegroundService extends Service {

    private final IBinder mBinder = new MyBinder();

    private static final String CHANNEL_ID = "2";

    @Override

    public IBinder onBind(Intent intent) {

        return mBinder;

    }

    @Override

    public int onStartCommand(Intent intent, int flags, int startId) {

        return START_STICKY;

    }

    @Override

    public void onCreate() {

        super.onCreate();

        buildNotification();

        requestLocationUpdates();

    }

    private void buildNotification() {

        String stop = "stop";

        PendingIntent broadcastIntent = PendingIntent.getBroadcast(

                this, 0, new Intent(stop), PendingIntent.FLAG_UPDATE_CURRENT);

        // Create the persistent notification

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)

                .setContentTitle(getString(R.string.app_name))

                .setContentText("Location tracking is working")

                .setOngoing(true)

                .setContentIntent(broadcastIntent);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

            NotificationChannel channel = new NotificationChannel(CHANNEL_ID, getString(R.string.app_name),

                    NotificationManager.IMPORTANCE_DEFAULT);

            channel.setShowBadge(false);

            channel.setDescription("Location tracking is working");

            channel.setSound(null, null);

            NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

            manager.createNotificationChannel(channel);

        }

        startForeground(1, builder.build());

    }

    private void requestLocationUpdates() {

        LocationRequest request = new LocationRequest();

        request.setInterval(1000);

        request.setFastestInterval(3000);

        request.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

        FusedLocationProviderClient client = LocationServices.getFusedLocationProviderClient(this);

        int permission = ContextCompat.checkSelfPermission(this,

                Manifest.permission.ACCESS_FINE_LOCATION);

        if (permission == PackageManager.PERMISSION_GRANTED) {

            // Request location updates and when an update is

            // received, store the location in Firebase

            client.requestLocationUpdates(request, new LocationCallback() {

                @Override

                public void onLocationResult(LocationResult locationResult) {

                    String location = "Latitude : " + locationResult.getLastLocation().getLatitude() +

                            "\nLongitude : " + locationResult.getLastLocation().getLongitude();

                    Toast.makeText(ForegroundService.this, location, Toast.LENGTH_SHORT).show();

                }

            }, null);

        } else {

            stopSelf();

        }

    }

    public class MyBinder extends Binder {

        public ForegroundService getService() {

            return ForegroundService.this;

        }

    }

}

AndroidManifest.xml

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

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

    package="com.surabhiglobal.foregroundserviceexample">

    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/Theme.ForegroundServiceExample">

        <activity

            android:name=".MainActivity"

            android:configChanges="orientation|screenSize">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <service

            android:name=".ForegroundService"

            android:enabled="true"

            android:exported="false"/>

    </application>

</manifest>

build.gradle (app level file)

plugins {

    id 'com.android.application'

}

android {

    compileSdkVersion 30

    buildToolsVersion "30.0.3"

    defaultConfig {

        applicationId "com.surabhiglobal.foregroundserviceexample"

        minSdkVersion 16

        targetSdkVersion 30

        versionCode 1

        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

    }

    buildTypes {

        release {

            minifyEnabled false

            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

        }

    }

    compileOptions {

        sourceCompatibility JavaVersion.VERSION_1_8

        targetCompatibility JavaVersion.VERSION_1_8

    }

}

dependencies {

    implementation 'androidx.appcompat:appcompat:1.2.0'

    implementation 'com.google.android.material:material:1.3.0'

    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'

    testImplementation 'junit:junit:4.13.2'

    androidTestImplementation 'androidx.test.ext:junit:1.1.2'

    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'

    //add this two dependencies

    implementation 'com.google.android.gms:play-services-location:18.0.0'

    implementation 'com.karumi:dexter:4.2.0'

}

Capture photos in android without opening camera

 

activity_main.xml

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

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

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    tools:context=".MainActivity">

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:orientation="horizontal"

        android:weightSum="2"

        android:layout_margin="10dp">

        <Button

            android:id="@+id/btn_front"

            android:layout_width="0dp"

            android:layout_height="wrap_content"

            android:layout_weight="1"

            android:text="Front Camera"

            android:layout_marginEnd="10dp" />

        <Button

            android:id="@+id/btn_back"

            android:layout_width="0dp"

            android:layout_height="wrap_content"

            android:layout_weight="1"

            android:text="Back Camera" />

    </LinearLayout>

    <ImageView

        android:id="@+id/iv_image"

        android:layout_width="250dp"

        android:layout_height="250dp"

        android:layout_centerInParent="true"/>

</RelativeLayout>

MainActivity.java

package com.surabhiglobal.example;

import android.Manifest;

import android.app.AlertDialog;

import android.content.DialogInterface;

import android.content.Intent;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.SurfaceTexture;

import android.hardware.Camera;

import android.net.Uri;

import android.os.Bundle;

import android.provider.Settings;

import android.util.Log;

import android.view.View;

import android.widget.Button;

import android.widget.ImageView;

import androidx.appcompat.app.AppCompatActivity;

import com.karumi.dexter.Dexter;

import com.karumi.dexter.MultiplePermissionsReport;

import com.karumi.dexter.PermissionToken;

import com.karumi.dexter.listener.PermissionRequest;

import com.karumi.dexter.listener.multi.MultiplePermissionsListener;

import java.util.List;

public class MainActivity extends AppCompatActivity {

    private Button btn_front, btn_back;

    private String TAG = MainActivity.class.getName();

    private ImageView iv_image;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        btn_front = findViewById(R.id.btn_front);

        btn_back = findViewById(R.id.btn_back);

        iv_image = findViewById(R.id.iv_image);

        btn_front.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                requestAppPermissions("1");

            }

        });

        btn_back.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                requestAppPermissions("0");

            }

        });

    }

    private void requestAppPermissions(String type) {

        Dexter.withActivity(MainActivity.this)

                .withPermissions(

                        Manifest.permission.CAMERA)

                .withListener(new MultiplePermissionsListener() {

                    @Override

                    public void onPermissionsChecked(MultiplePermissionsReport report) {

                        if (report.areAllPermissionsGranted()) {

                            if (type.equals("0")) {

                                CaptureBackPhoto();

                            } else {

                                CaptureFrontPhoto();

                            }

                        }

                        // check for permanent denial of any permission

                        if (report.isAnyPermissionPermanentlyDenied()) {

                            // permission is denied permenantly, navigate user to app settings

                            showSettingsDialog();

                        }

                    }

                    @Override

                    public void onPermissionRationaleShouldBeShown(List<PermissionRequest> permissions, PermissionToken token) {

                        token.continuePermissionRequest();

                    }

                })

                .onSameThread()

                .check();

    }

    private void showSettingsDialog() {

        AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);

        builder.setTitle("Need Permissions");

        builder.setMessage("This app needs permission to use this feature. You can grant them in app settings.");

        builder.setPositiveButton("GOTO SETTINGS", new DialogInterface.OnClickListener() {

            @Override

            public void onClick(DialogInterface dialog, int which) {

                dialog.cancel();

                openSettings();

            }

        });

        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

            @Override

            public void onClick(DialogInterface dialog, int which) {

                dialog.cancel();

            }

        });

        builder.show();

    }

    private void openSettings() {

        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);

        Uri uri = Uri.fromParts("package", getPackageName(), null);

        intent.setData(uri);

        startActivityForResult(intent, 101);

    }

    private void CaptureFrontPhoto() {

        Log.d(TAG, "Preparing to take photo");

        Camera camera = null;

        Camera.CameraInfo cameraInfo = new Camera.CameraInfo();

        int frontCamera = 1;

        //int backCamera=0;

        Camera.getCameraInfo(frontCamera, cameraInfo);

        try {

            camera = Camera.open(frontCamera);

            camera.enableShutterSound(false);

        } catch (RuntimeException e) {

            Log.d(TAG, "Camera not available: " + 1);

            camera = null;

            //e.printStackTrace();

        }

        try {

            if (null == camera) {

                Log.d(TAG, "Could not get camera instance");

            } else {

                Log.d(TAG, "Got the camera, creating the dummy surface texture");

                try {

                    camera.setPreviewTexture(new SurfaceTexture(0));

                    camera.startPreview();

                } catch (Exception e) {

                    Log.d(TAG, "Could not set the surface preview texture");

                    e.printStackTrace();

                }

                camera.takePicture(null, null, new Camera.PictureCallback() {

                    @Override

                    public void onPictureTaken(byte[] data, Camera camera) {

                        try {

                            Bitmap bmp = BitmapFactory.decodeByteArray(data, 0, data.length);

                            iv_image.setImageBitmap(bmp);

                        } catch (Exception e) {

                            System.out.println(e.getMessage());

                        }

                        camera.release();

                    }

                });

            }

        } catch (Exception e) {

            camera.release();

        }

    }

    private void CaptureBackPhoto() {

        Log.d(TAG, "Preparing to take photo");

        Camera camera = null;

        try {

            camera = Camera.open();

            camera.enableShutterSound(false);

        } catch (RuntimeException e) {

            Log.d(TAG, "Camera not available: " + 1);

            camera = null;

            //e.printStackTrace();

        }

        try {

            if (null == camera) {

                Log.d(TAG, "Could not get camera instance");

            } else {

                Log.d(TAG, "Got the camera, creating the dummy surface texture");

                try {

                    camera.setPreviewTexture(new SurfaceTexture(0));

                    camera.startPreview();

                } catch (Exception e) {

                    Log.d(TAG, "Could not set the surface preview texture");

                    e.printStackTrace();

                }

                camera.takePicture(null, null, new Camera.PictureCallback() {

                    @Override

                    public void onPictureTaken(byte[] data, Camera camera) {

                        try {

                            Bitmap bmp = BitmapFactory.decodeByteArray(data, 0, data.length);

                            iv_image.setImageBitmap(bmp);

                        } catch (Exception e) {

                            System.out.println(e.getMessage());

                        }

                        camera.release();

                    }

                });

            }

        } catch (Exception e) {

            camera.release();

        }

    }

}

AndroidManifest.xml

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

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

    package="com.surabhiglobal.example">

    <uses-permission android:name="android.permission.CAMERA"/>

    <uses-feature android:name="android.hardware.camera" />

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/Theme.ForegroundServiceExample">

        <activity

            android:name=".MainActivity"

            android:configChanges="orientation|screenSize">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

build.gradle (app level file)

plugins {

    id 'com.android.application'

}

android {

    compileSdkVersion 30

    buildToolsVersion "30.0.3"

    defaultConfig {

        applicationId "com.surabhiglobal.example"

        minSdkVersion 17

        targetSdkVersion 30

        versionCode 1

        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

    }

    buildTypes {

        release {

            minifyEnabled false

            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

        }

    }

    compileOptions {

        sourceCompatibility JavaVersion.VERSION_1_8

        targetCompatibility JavaVersion.VERSION_1_8

    }

}

dependencies {

    implementation 'androidx.appcompat:appcompat:1.2.0'

    implementation 'com.google.android.material:material:1.3.0'

    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'

    testImplementation 'junit:junit:4.13.2'

    androidTestImplementation 'androidx.test.ext:junit:1.1.2'

    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'

    //add this dependency

    implementation 'com.karumi:dexter:4.2.0'

}

Keyboard Shortcut for Android Studio in Windows & Mac Osx

By using keyboard shortcuts of Android Studio you can increase the productivity and you can do so many tasks in short period of time.

Here you can see some of the shortcuts of android studio in windows and Mac.

Please comment shortcuts whatever i missed here.

thanking you..

Description	Windows/Linux	Mac
General
Save all	Control + S	Command + S
Synchronize	Control + Alt + Y	Command + Option + Y
Maximize/minimize editor	Control + Shift + F12	Control + Command + F12
Add to favorites	Alt + Shift + F	Option + Shift + F
Inspect current file with current profile	Alt + Shift + I	Option + Shift + I
Quick switch scheme	Control + ` (backquote)	Control + ` (backquote)
Open settings dialogue	Control + Alt + S	Command + , (comma)
Open project structure dialog	Control + Alt + Shift + S	Command + ; (semicolon)
Switch between tabs and tool window	Control + Tab	Control + Tab
Navigating and Searching Within Studio
Search everything (including code and menus)	Press Shift twice	Press Shift twice
Find	Control + F	Command + F
Find next	F3	Command + G
Find previous	Shift + F3	Command + Shift + G
Replace	Control + R	Command + R
Find action	Control + Shift + A	Command + Shift + A
Search by symbol name	Control + Alt + Shift + N	Command + Option + O
Find class	Control + N	Command + O
Find file (instead of class)	Control + Shift + N	Command + Shift + O
Find in path	Control + Shift + F	Command + Shift + F
Open file structure pop-up	Control + F12	Command + F12
Navigate between open editor tabs	Alt + Right/Left Arrow	Control + Right/Left Arrow
Jump to source	F4 / Control + Enter	F4 / Command + Down Arrow
Open current editor tab in new window	Shift + F4	Shift + F4
Recently opened files pop-up	Control + E	Command + E
Recently edited files pop-up	Control + Shift + E	Command + Shift + E
Go to last edit location	Control + Shift + Backspace	Command + Shift + Backspace
Close active editor tab	Control + F4	Command + W
Return to editor window from a tool window	Esc	Esc
Hide active or last active tool window	Shift + Esc	Shift + Esc
Go to line	Control + G	Command + L
Open type hierarchy	Control + H	Control + H
Open method hierarchy	Control + Shift + H	Command + Shift + H
Open call hierarchy	Control + Alt + H	Control + Option + H
Writing Code
Generate code (getters, setters, constructors, hashCode/equals, toString, new file, new class)	Alt + Insert	Command + N
Override methods	Control + O	Control + O
Implement methods	Control + I	Control + I
Surround with (if…else / try…catch / etc.)	Control + Alt + T	Command + Option + T
Delete line at caret	Control + Y	Command + Backspace
Collapse/expand current code block	Control + minus/plus	Command + minus/plus
Collapse/expand all code blocks	Control + Shift + minus/plus	Command + Shift + minus/plus
Duplicate current line or selection	Control + D	Command + D
Basic code completion	Control + Space	Control + Space
Smart code completion (filters the list of methods and variables by expected type)	Control + Shift + Space	Control + Shift + Space
Complete statement	Control + Shift + Enter	Command + Shift + Enter
Quick documentation lookup	Control + Q	Control + J
Show parameters for selected method	Control + P	Command + P
Go to declaration (directly)	Control + B or Control + Click	Command + B or Command + Click
Go to implementations	Control + Alt + B	Command + Alt + B
Go to super-method/super-class	Control + U	Command + U
Open quick definition lookup	Control + Shift + I	Command + Y
Toggle project tool window visibility	Alt + 1	Command + 1
Toggle bookmark	F11	F3
Toggle bookmark with mnemonic	Control + F11	Option + F3
Comment/uncomment with line comment	Control + /	Command + /
Comment/uncomment with block comment	Control + Shift + /	Command + Shift + /
Select successively increasing code blocks	Control + W	Option + Up
Decrease current selection to previous state	Control + Shift + W	Option + Down
Move to code block start	Control + [	Option + Command + [
Move to code block end	Control + ]	Option + Command + ]
Select to the code block start	Control + Shift + [	Option + Command + Shift + [
Select to the code block end	Control + Shift + ]	Option + Command + Shift + ]
Delete to end of word	Control + Delete	Option + Delete
Delete to start of word	Control + Backspace	Option + Backspace
Optimize imports	Control + Alt + O	Control + Option + O
Project quick fix (show intention actions and quick fixes)	Alt + Enter	Option + Enter
Reformat code	Control + Alt + L	Command + Option + L
Auto-indent lines	Control + Alt + I	Control + Option + I
Indent/unindent lines	Tab/Shift + Tab	Tab/Shift + Tab
Smart line join	Control + Shift + J	Control + Shift + J
Smart line split	Control + Enter	Command + Enter
Start new line	Shift + Enter	Shift + Enter
Next/previous highlighted error	F2 / Shift + F2	F2 / Shift + F2
Build and Run
Build	Control + F9	Command + F9
Build and run	Shift + F10	Control + R
Apply changes (with Instant Run)	Control + F10	Control + Command + R
Debugging
Debug	Shift + F9	Control + D
Step over	F8	F8
Step into	F7	F7
Smart step into	Shift + F7	Shift + F7
Step out	Shift + F8	Shift + F8
Run to cursor	Alt + F9	Option + F9
Evaluate expression	Alt + F8	Option + F8
Resume program	F9	Command + Option + R
Toggle breakpoint	Control + F8	Command + F8
View breakpoints	Control + Shift + F8	Command + Shift + F8
Refactoring
Copy	F5	F5
Move	F6	F6
Safe delete	Alt + Delete	Command + Delete
Rename	Shift + F6	Shift + F6
Change signature	Control + F6	Command + F6
Inline	Control + Alt + N	Command + Option + N
Extract method	Control + Alt + M	Command + Option + M
Extract variable	Control + Alt + V	Command + Option + V
Extract field	Control + Alt + F	Command + Option + F
Extract constant	Control + Alt + C	Command + Option + C
Extract parameter	Control + Alt + P	Command + Option + P
Version Control / Local History
Commit project to VCS	Control + K	Command + K
Update project from VCS	Control + T	Command + T
View recent changes	Alt + Shift + C	Option + Shift + C
Open VCS popup	Alt + ` (backquote)	Control + V

TrackOne Mobile App

TrackOne

1) TrackOne is the Android App.

2) By using this app to track incoming and outgoing calls of others.

3) Install this app into others mobile.

4) Register your number and others name into this app.

5) Then after you got messages when others got incoming calls or other make outgoing calls (in message you got incoming and outgoing calls number of others)

Note: This is a paid app and this app is not available in playstore. anyone interest for this app send me your information to below details.

Contact:

7661000787

chanti.surabhi321@gmail.com

Freelancing and Engineering Projects

Dear All,

              I am a leading senior android developer. I am very much interested to share my knowledge with u. All Engineering students please take this chance to create awesome mobile apps for your mini and main projects. All startups please take this chance to create new projects.

Note : I will give u any time support. Interested persons please contact me through below information.

Actually i am very much busy with my projects thats why i am not posting new tutorials. Sorry for delay from now i will post tutorials weekly once. Please support me.

Thank you all for reaching my blog viewers 10000+

My Contact Details,
Mobile no : 7661000787
Email ID : chanti.surabhi321@gmail.com

Material Navigation Drawer example in Android

activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 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:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:openDrawer="start">

    <include
        layout="@layout/app_bar_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        app:headerLayout="@layout/nav_header_main"
        app:menu="@menu/activity_main_drawer" />


</android.support.v4.widget.DrawerLayout>

app_bar_main.xml

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

<android.support.design.widget.CoordinatorLayout 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.chantisandroid.exampleapp.MainActivity">

    <android.support.design.widget.AppBarLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar

            android:id="@+id/toolbar"

            android:layout_width="match_parent"

            android:layout_height="?attr/actionBarSize"

            android:background="?attr/colorPrimary"

            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_main" />

    <android.support.design.widget.FloatingActionButton

        android:id="@+id/fab"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_gravity="bottom|end"

        android:layout_margin="@dimen/fab_margin"

        app:srcCompat="@android:drawable/ic_dialog_email" />

</android.support.design.widget.CoordinatorLayout>

content_main.xml

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

<android.support.constraint.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_height="match_parent"

    app:layout_behavior="@string/appbar_scrolling_view_behavior"

    tools:context="com.chantisandroid.exampleapp.MainActivity"

    tools:showIn="@layout/app_bar_main">

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Hello World!"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintLeft_toLeftOf="parent"

        app:layout_constraintRight_toRightOf="parent"

        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>

nav_header_main.xml

<?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"

    android:layout_width="match_parent"

    android:layout_height="@dimen/nav_header_height"

    android:background="@drawable/side_nav_bar"

    android:gravity="bottom"

    android:orientation="vertical"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:theme="@style/ThemeOverlay.AppCompat.Dark">

    <ImageView

        android:id="@+id/imageView"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:paddingTop="@dimen/nav_header_vertical_spacing"

        app:srcCompat="@android:drawable/sym_def_app_icon" />

    <TextView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:paddingTop="@dimen/nav_header_vertical_spacing"

        android:text="Android Studio"

        android:textAppearance="@style/TextAppearance.AppCompat.Body1" />

    <TextView

        android:id="@+id/textView"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="android.studio@android.com" />

</LinearLayout>

Create one menu folder under res folder 

Under menu folder create below two xml files

activity_main_drawer.xml

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

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

    <group android:checkableBehavior="single">

        <item

            android:id="@+id/nav_camera"

            android:icon="@drawable/ic_menu_camera"

            android:title="Import" />

        <item

            android:id="@+id/nav_gallery"

            android:icon="@drawable/ic_menu_gallery"

            android:title="Gallery" />

        <item

            android:id="@+id/nav_slideshow"

            android:icon="@drawable/ic_menu_slideshow"

            android:title="Slideshow" />

        <item

            android:id="@+id/nav_manage"

            android:icon="@drawable/ic_menu_manage"

            android:title="Tools" />

    </group>

    <item android:title="Communicate">

        <menu>

            <item

                android:id="@+id/nav_share"

                android:icon="@drawable/ic_menu_share"

                android:title="Share" />

            <item

                android:id="@+id/nav_send"

                android:icon="@drawable/ic_menu_send"

                android:title="Send" />

        </menu>

    </item>

</menu>

main.xml

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

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

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

    <item

        android:id="@+id/action_settings"

        android:orderInCategory="100"

        android:title="@string/action_settings"

        app:showAsAction="never" />

</menu>

MainActivity

package com.chantisandroid.exampleapp;

import android.os.Bundle;

import android.support.design.widget.FloatingActionButton;

import android.support.design.widget.Snackbar;

import android.view.View;

import android.support.design.widget.NavigationView;

import android.support.v4.view.GravityCompat;

import android.support.v4.widget.DrawerLayout;

import android.support.v7.app.ActionBarDrawerToggle;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.widget.Toolbar;

import android.view.Menu;

import android.view.MenuItem;

public class MainActivity extends AppCompatActivity

        implements NavigationView.OnNavigationItemSelectedListener {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);

        fab.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View view) {

                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)

                        .setAction("Action", null).show();

            }

        });

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);

        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(

                this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);

        drawer.setDrawerListener(toggle);

        toggle.syncState();

        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);

        navigationView.setNavigationItemSelectedListener(this);

    }

    @Override

    public void onBackPressed() {

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);

        if (drawer.isDrawerOpen(GravityCompat.START)) {

            drawer.closeDrawer(GravityCompat.START);

        } else {

            super.onBackPressed();

        }

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.main, menu);

        return true;

    }

    @Override

    public boolean onOptionsItemSelected(MenuItem item) {

        // Handle action bar item clicks here. The action bar will

        // automatically handle clicks on the Home/Up button, so long

        // as you specify a parent activity in AndroidManifest.xml.

        int id = item.getItemId();

        //noinspection SimplifiableIfStatement

        if (id == R.id.action_settings) {

            return true;

        }

        return super.onOptionsItemSelected(item);

    }

    @SuppressWarnings("StatementWithEmptyBody")

    @Override

    public boolean onNavigationItemSelected(MenuItem item) {

        // Handle navigation view item clicks here.

        int id = item.getItemId();

        if (id == R.id.nav_camera) {

            // Handle the camera action

        } else if (id == R.id.nav_gallery) {

        } else if (id == R.id.nav_slideshow) {

        } else if (id == R.id.nav_manage) {

        } else if (id == R.id.nav_share) {

        } else if (id == R.id.nav_send) {

        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);

        drawer.closeDrawer(GravityCompat.START);

        return true;

    }

}

build.gradle(Module: app)

apply plugin: 'com.android.application'

android {

    compileSdkVersion 26

    buildToolsVersion "25.0.2"

    defaultConfig {

        applicationId "com.chantisandroid.exampleapp"

        minSdkVersion 14

        targetSdkVersion 26

        versionCode 1

        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    buildTypes {

        release {

            minifyEnabled false

            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

        }

    }

}

dependencies {

    compile fileTree(dir: 'libs', include: ['*.jar'])

    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {

        exclude group: 'com.android.support', module: 'support-annotations'

    })

    compile 'com.android.support:appcompat-v7:26.+'

    compile 'com.android.support:design:26.+'

    compile 'com.android.support.constraint:constraint-layout:1.0.2'

    testCompile 'junit:junit:4.12'

}

NOTE:

For images you can download your own PNG images and add to in drawable folder it is under res folder