安卓day31广播和服务 ip拨号 短信拦截 监听sd卡 勒索 监听应用安装卸载 广播 服务 进程优先级 电话qie听器

时间:2021-10-29 08:23:41

一、排坑

 短信测试

用模拟器

安卓day31广播和服务 ip拨号 短信拦截 监听sd卡 勒索 监听应用安装卸载 广播 服务 进程优先级 电话qie听器

启动界面无设备显示

重启电脑

adb测试插拔sd卡

命令找不到。。

发送广播闪退

系统广播,非系统应用无权限发送这个广播

无法接收广播

用动态注册

监听卸载广播要加

filter.addDataScheme("package");

二、IP拨号器

 接收拨打电话的广播,修改广播内携带的电话号码

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (ContextCompat.checkSelfPermission(MainActivity.this,
                Manifest.permission.PROCESS_OUTGOING_CALLS)!= PackageManager.PERMISSION_GRANTED){
            //申请权限
            ActivityCompat.requestPermissions(MainActivity.this,
                    new String[]{Manifest.permission.PROCESS_OUTGOING_CALLS},1);
        }else {
            //把动作告诉系统
        }
    }
    public void click(View v){
        EditText et = (EditText) findViewById(R.id.et);
        SharedPreferences sp = getSharedPreferences("ip", MODE_PRIVATE);
        sp.edit().putString("ipNumber", et.getText().toString()).commit();
    }
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        switch (requestCode){
            case 1:
                //发短信权限回调
                if (grantResults[0]==PackageManager.PERMISSION_GRANTED){

                }else {
                    //提示用户权限未被授予
                    Log.d("MainActivity","未授予权限");
                    exit();
                }
                break;
        }
    }
    public void exit()
    {
        MainActivity.this.finish();
        System.exit(0);

    }
}
public class CallReceiver extends BroadcastReceiver {
    private static final String TAG = "CallReceiver";
    //接收到广播时就会调用
    @Override
    public void onReceive(Context context, Intent intent) {
        //添加IP线路
        //在打电话广播中,会携带拨打的电话的号码,通过以下代码获取到
        String number = getResultData();
        Log.e(TAG, "onReceive: " );
        if(number.startsWith("0")){
            SharedPreferences sp = context.getSharedPreferences("ip", Context.MODE_PRIVATE);
            String ipNumber = sp.getString("ipNumber", "");
            
            //把IP线路号码添加至用户拨打号码的前面
            number = ipNumber + number;
            
            //把新的号码重新放入广播中
            setResultData(number);
            
            abortBroadcast();
        }
    }
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.index42.ipdialer">
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
    <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/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".CallReceiver">
            <intent-filter>
                <action android:name="android.intent.action.NEW_OUTGOING_CALL"/>
            </intent-filter>
        </receiver>
    </application>
</manifest>

三、短信拦截器

  • 4.0以后广播接收者安装以后必须手动启动一次,否则不生效

  • 4.0以后广播接收者如果被手动关闭,就不会再启动了
  • 系统创建广播时,把短信存放到一个数组,然后把数据以pdus为key存入bundle,再把bundle存入intent
  • 清单文件中配置广播接收者接收的广播类型,注意要设置优先级属性,要保证优先级高于短信应用,才可以实现拦截

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (ContextCompat.checkSelfPermission(MainActivity.this,
                Manifest.permission.RECEIVE_SMS)!= PackageManager.PERMISSION_GRANTED){
            //申请权限
            ActivityCompat.requestPermissions(MainActivity.this,
                    new String[]{Manifest.permission.RECEIVE_SMS,Manifest.permission.SEND_SMS,Manifest.permission.READ_PHONE_STATE},1);
        }else {
            //把动作告诉系统
        }
    }

    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        switch (requestCode){
            case 1:
                //发短信权限回调
                if (grantResults[0]==PackageManager.PERMISSION_GRANTED&&grantResults[1]==PackageManager.PERMISSION_GRANTED&&grantResults[2]==PackageManager.PERMISSION_GRANTED){

                }else {
                    //提示用户权限未被授予
                    exit();
                    Log.d("MainActivity","未授予发短信权限");
                }
                break;
        }
    }
    @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;
    }
    public void exit()
    {
        MainActivity.this.finish();
        System.exit(0);
    }
}
public class SmsReceiver extends BroadcastReceiver {
    private static final String TAG = "SmsReceiver";
    @Override
    public void onReceive(Context context, Intent intent) {
        //拿到短信的信息
        //短信内容封装在intent中
        Bundle bundle = intent.getExtras();
        //以pdus为键,取出一个object数组,数组中的每一个元素,都是一条短信
        Object[] objects = (Object[]) bundle.get("pdus");
        int currentApiVversion = Build.VERSION.SDK_INT;
        //拿到广播中的所有短信
        for (Object object : objects) {
            //通过pdu来构造短信
            SmsMessage sms = SmsMessage.createFromPdu((byte[])object);
//            if(currentApiVversion >= Build.VERSION_CODES.LOLLIPOP)
//                sms =  SmsMessage.createFromPdu((byte[])object, Telephony.Sms.Intents.SMS_RECEIVED_ACTION);
//            else
//                sms = SmsMessage.createFromPdu((byte[])object);
            Log.e(TAG, "onReceive!!! ");
            if(sms.getOriginatingAddress().equals("131")){
                //阻止其他广播接收者收到这条广播
                abortBroadcast();
                SmsManager.getDefault().sendTextMessage(sms.getOriginatingAddress(), null, "你是个好人", null, null);
            }
//            System.out.println(sms.getMessageBody());
            
        }

    }

}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.index42.smslanjie">
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.SEND_SMS"/>
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <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/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".SmsReceiver">
            <intent-filter android:priority="1000">
                <action android:name="android.provider.Telephony.SMS_RECEIVED"/>
            </intent-filter>
        </receiver>
    </application>

</manifest>

四、监听SD卡状态

  • 清单文件中定义广播接收者接收的类型,监听SD卡常见的三种状态,所以广播接收者需要接收三种广播

       <receiver android:name="com.itheima.sdcradlistener.SDCardReceiver">
          <intent-filter >
              <action android:name="android.intent.action.MEDIA_MOUNTED"/>
              <action android:name="android.intent.action.MEDIA_UNMOUNTED"/>
              <action android:name="android.intent.action.MEDIA_REMOVED"/>
              <data android:scheme="file"/>
          </intent-filter>
      </receiver>
  • 广播接收者的定义

      public class SDCardReceiver extends BroadcastReceiver {
          @Override
          public void onReceive(Context context, Intent intent) {
              // 区分接收到的是哪个广播
              String action = intent.getAction();
    
              if(action.equals("android.intent.action.MEDIA_MOUNTED")){
                  System.out.println("sd卡就绪");
              }
              else if(action.equals("android.intent.action.MEDIA_UNMOUNTED")){
                  System.out.println("sd卡被移除");
              }
              else if(action.equals("android.intent.action.MEDIA_REMOVED")){
                  System.out.println("sd卡被拔出");
              }
          }
      }

五、勒索软件

  • 接收开机广播,在广播接收者中启动勒索的Activity
  • 清单文件中配置接收开机广播

  • 广播接收者的启动,并不会创建任务栈,那么没有任务栈,就无法启动activity
  • 手动设置创建新任务栈的flag

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    @Override
    public void onBackPressed() {
        // TODO Auto-generated method stub
//        super.onBackPressed();
    }
}
public class BootReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // 启动Activity,实现开机自动启动勒索软件
        Intent it = new Intent(context, MainActivity.class);
        //创建任务栈存放启动的Activity
        it.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(it);
    }
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.index42.lesuo">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
    <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/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".BootReceiver">
            <intent-filter >
                <action android:name="android.intent.action.BOOT_COMPLETED"/>
            </intent-filter>
        </receiver>
    </application>
</manifest>

六、监听应用的安装、卸载、更新

原理:应用在安装卸载更新时,系统会发送广播,广播里会携带应用的包名

public class MainActivity extends Activity {
    private static final String TAG = "MainActivity";
    private APPStatusReceiver receiver;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        Log.e(TAG, "onCreate: ");
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        receiver = new APPStatusReceiver();
        IntentFilter filter=new IntentFilter();
//        filter.addAction("android.intent.action.SCREEN_ON");
//        filter.addAction("android.intent.action.HEADSET_PLUG");
        filter.addAction("android.intent.action.PACKAGE_ADDED");
        filter.addAction("android.intent.action.PACKAGE_REPLACED");
        filter.addAction("android.intent.action.PACKAGE_REMOVED");
        filter.addAction("android.intent.action.PACKAGE_FULLY_REMOVED");
        filter.addDataScheme("package");
        registerReceiver(receiver, filter);
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(receiver);
    }
}
public class APPStatusReceiver extends BroadcastReceiver {
    private static final String TAG = "APPStatusReceiver";
    //@Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        Log.e(TAG, "onReceive: " );
        String action = intent.getAction();
        Uri uri = intent.getData();
//        if (action.equals("android.intent.action.SCREEN_ON")) {
//            Log.e(TAG, "屏幕亮啦");
//        }
//        if (action.equals("android.intent.action.HEADSET_PLUG")) {
//            int state = intent.getIntExtra("state", -1);
//            int mic = intent.getIntExtra("microphone", -1);
//            if(state==0) Log.e(TAG, "拔出耳机");
//            if(state==1) Log.e(TAG, "插入耳机");
//        }
        if("android.intent.action.PACKAGE_ADDED".equals(action)){
            Log.e(TAG, uri.toString() + "被安装了");
            Toast.makeText(context, uri.toString() + "被安装了", Toast.LENGTH_SHORT).show();
        }
        if("android.intent.action.PACKAGE_REPLACED".equals(action)){
            Log.e(TAG, uri.toString() + "被升级了" );
            Toast.makeText(context, uri.toString() + "被升级了", Toast.LENGTH_SHORT).show();
        }
        if("android.intent.action.PACKAGE_REMOVED".equals(action)){
            Log.e(TAG, uri.toString() + "被卸载了" );
            Toast.makeText(context, uri.toString() + "被卸载了", Toast.LENGTH_SHORT).show();
        }
    }
}

七、自定义广播

接收者

public class MainActivity extends Activity {
    private ZDYReceiver zdyReceiver;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        zdyReceiver = new ZDYReceiver();
        IntentFilter filter=new IntentFilter();
        filter.addAction("com.itheima.zdy");
        registerReceiver(zdyReceiver, filter);
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(zdyReceiver);
    }
}
public class ZDYReceiver extends BroadcastReceiver {
    private static final String TAG = "ZDYReceiver";

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub

        Log.e(TAG, "成功接收到广播: ");
        Toast.makeText(context, "成功接收到广播", 0).show();
    }

}

发送者

public class MainActivity extends Activity {

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


    public void click(View v){
        //发送自定义广播
        Intent intent = new Intent();
        //广播中的action也是自定义的
        intent.setAction("com.itheima.zdy");
        sendBroadcast(intent);
    }
}

八、广播类型

  • 无序广播:所有跟广播的intent匹配的广播接收者都可以收到该广播,并且是没有先后顺序(同时收到)
  • 有序广播:所有跟广播的intent匹配的广播接收者都可以收到该广播,但是会按照广播接收者的优先级来决定接收的先后顺序
    • 优先级的定义:-1000~1000
    • 最终接收者:所有广播接收者都接收到广播之后,它才接收,并且一定会接收
    • abortBroadCast:阻止其他接收者接收这条广播,类似拦截,只有有序广播可以被拦截

接收者

public class MainActivity extends Activity {
    private ShengZF shengZF;
    private ShiZF shiZF;
    private XianZF xianZF;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        shengZF = new ShengZF();
        shiZF = new ShiZF();
        xianZF = new XianZF();
        IntentFilter filter=new IntentFilter();
        filter.addAction("com.itheima.fdm");
        filter.setPriority(1000);
        registerReceiver(shengZF, filter);
        filter.setPriority(800);
        registerReceiver(shiZF, filter);
        filter.setPriority(600);
        registerReceiver(xianZF, filter);
    }
}
public class ShengZF extends BroadcastReceiver {
    private static final String TAG = "ShengZF";
    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        String text = getResultData();
        Log.e(TAG, "省*收到文件: " + text);
        System.out.println("省*收到文件:" + text);
        setResultData("每人发80斤大米");
    }
}
public class ShiZF extends BroadcastReceiver {
    private static final String TAG = "ShiZF";
    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        String text = getResultData();
        Log.e(TAG, "市*收到文件: " + text);
        System.out.println("市*收到文件:" + text);
        abortBroadcast();
    }
}
public class XianZF extends BroadcastReceiver {
    private static final String TAG = "XianZF";
    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        String text = getResultData();
        Log.e(TAG, "县*收到文件:" + text);
        System.out.println("县*收到文件:" + text);
    }
}

发送者

public class MainActivity extends Activity {
    private static final String TAG = "MainActivity";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    public void click(View v){
        Intent intent = new Intent();
        intent.setAction("com.itheima.fdm");
        
        //发送有序广播
        //resultReceiver:不需要在清单文件中配置,这个广播接收者只接受该条有序广播,并且是最后一个收到该广播,并且一定可以收到该广播
        sendOrderedBroadcast(intent, null, new MyReceiver(), null, 0, "每人发100斤大米", null);
    }
    //
    class MyReceiver extends BroadcastReceiver{
        @Override
        public void onReceive(Context context, Intent intent) {
            String text = getResultData();
            Log.e(TAG, "反贪局收到文件:" + text);
            System.out.println("反贪局收到文件:" + text);
            
        }
    }
}

九、服务

Service

  • 就是默默运行在后台的组件,可以理解为是没有前台的activity,适合用来运行不需要前台界面的代码
  • 服务可以被手动关闭,不会重启,但是如果被自动关闭,内存充足就会重启
  • startService启动服务的生命周期
    • onCreate-onStartCommand-onDestroy
  • 重复的调用startService会导致onStartCommand被重复调用

进程优先级

  1. 前台进程:拥有前台activity(onResume方法被调用)
  2. 可见进程:拥有可见activity(onPause方法被调用)
  3. 服务进程:不到万不得已不会被回收,而且即便被回收,内存充足时也会被重启
  4. 后台进程:拥有后台activity(activity的onStop方法被调用了),很容易被回收
  5. 空进程:没有运行任何activity,很容易被回收
public class MainActivity extends Activity {

    private Intent intent;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        intent = new Intent(this, MyService.class);
    }
    public void click(View v){
        //显式启动服务
        startService(intent);
    }
    public void click2(View v){
        //关闭服务
//        Intent intent = new Intent(this, MyService.class);
        stopService(intent);
    }
}
public class MyService extends Service {
    private static final String TAG = "MyService";
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        Log.e(TAG, "onBind: ");
        return null;
    }
    @Override
    public void onCreate() {
        // TODO Auto-generated method stub
        super.onCreate();
        Log.e(TAG, "create方法: ");
        System.out.println("create方法");
    }
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        // TODO Auto-generated method stub
        Log.e(TAG, "startCommand方法: ");
        System.out.println("startCommand方法");
        return super.onStartCommand(intent, flags, startId);
    }
    @Override
    public void onDestroy() {
        // TODO Auto-generated method stub
        super.onDestroy();
        Log.e(TAG, "destroy方法: " );
        System.out.println("destroy方法");
    }
}

十、电话qie听器

public class MainActivity extends Activity {
    private static final String TAG = "MainActivity";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (ContextCompat.checkSelfPermission(MainActivity.this,
                Manifest.permission.WRITE_EXTERNAL_STORAGE)!= PackageManager.PERMISSION_GRANTED){
            //申请权限
            ActivityCompat.requestPermissions(MainActivity.this,
                    new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.RECORD_AUDIO,Manifest.permission.READ_PHONE_STATE},1);
        }else {
            //把动作告诉系统
            //send();
        }
    }
    public void click(View v){
        Intent intent = new Intent(this, RecorderService.class);
        startService(intent);
    }
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        switch (requestCode){
            case 1:
                //发短信权限回调
                if (grantResults[0]==PackageManager.PERMISSION_GRANTED&&grantResults[1]==PackageManager.PERMISSION_GRANTED&&grantResults[2]==PackageManager.PERMISSION_GRANTED){

                }else {
                    //提示用户权限未被授予
                    Log.d("MainActivity","未授予权限");
                }
                break;
        }
    }
}
public class BootReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        //启动录音机服务
        Intent it = new Intent(context, RecorderService.class);
        context.startService(it);
    }
}
public class RecorderService extends Service {
    private MediaRecorder recorder;
    private TelephonyManager tm;
    private MyListener listener;
    private static final String TAG = "RecorderService";
    private String path= Environment.getExternalStorageDirectory()+"/ahmk/";
    private String filename=path+"luyin.amr";
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }
    @Override
    public void onCreate() {
        // TODO Auto-generated method stub
        super.onCreate();
        //拿到电话管理器
        tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
        //监听电话状态
        listener=new MyListener();
        //events:决定PhoneStateListener侦听什么内容
        tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
    }
    class MyListener extends PhoneStateListener{
        //一旦电话状态改变,此方法调用
        @Override
        public void onCallStateChanged(int state, String incomingNumber) {
            // TODO Auto-generated method stub
            super.onCallStateChanged(state, incomingNumber);
            Log.e(TAG, "onCallStateChanged: ");
            switch (state) {
            case TelephonyManager.CALL_STATE_IDLE:
                Log.e(TAG, "空闲: ");
                System.out.println("空闲");
                if(recorder != null){
                    recorder.stop();
                    recorder.release();
                    recorder = null;
                }
                break;
            case TelephonyManager.CALL_STATE_RINGING:
                Log.e(TAG, "响铃: " );
                System.out.println("响铃");

                break;
            case TelephonyManager.CALL_STATE_OFFHOOK:
                Log.e(TAG, "摘机: " );
                System.out.println("摘机");
                //开始录音
                if(recorder == null){
                    recorder = new MediaRecorder();
                    recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
                    recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
                    File dir = new File(path);
                    try {
                        if (!dir.exists()) {
                            dir.mkdirs();
                        }
                    }catch (Exception e) {
                        // TODO Auto-generated catch block
                        Log.e(TAG, e.getMessage());
                    }
                    recorder.setOutputFile(Environment.getExternalStorageDirectory()+"/ahmk/luyin.amr");
                    recorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
                    try {
                        recorder.prepare();
                    } catch (Exception e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                }



                if(recorder != null){
                    Log.e(TAG, "Start!!!: ");
                    recorder.start();
                }
                break;
            }
        }
    }
    public void onDestroy() {
        super.onDestroy();
        // 取消电话的监听
        tm.listen(listener, PhoneStateListener.LISTEN_NONE);
        listener = null;
    }
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.index42.recorder">
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
    <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/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service android:name=".RecorderService"></service>
        <receiver android:name=".BootReceiver">
            <intent-filter >
                <action android:name="android.intent.action.BOOT_COMPLETED"/>
            </intent-filter>
        </receiver>
    </application>
</manifest>