Question

每当用户拨打新电话时，我都试图在我的应用程序上获取通知触发器。我在我的活动中注册接收器并在onDestroy（）方法中销毁它。以下是注册

的代码段

registerReceiver(inComingCall = new IncomingCall(),new IntentFilter("android.intent.action.PHONE_STATE"));

我面临的问题是我没有在广播接收器的覆盖onReceive（）方法中获得任何触发器。请告诉我是否有任何新的实施或我应该采取的单独方式来接收特别是奥利奥的广播。

先谢谢。

Answer 1

我长期面对这个问题。每个人都会为你提供一个谷歌开发者网站的链接，它没有描述他们如何限制后台服务;没有适当的文档，也没有显示开发人员的示例代码，如何在Oreo或更高版本上实现它。即使在stack-Overflow上，您也只能找到有关限制的谷歌开发者网站的链接。

我希望您或其他一些开发人员会发现这非常有帮助。

仍有一些例外情况，例如NEW_OUTGOING_CALL或BOOT_COMPLETED，您仍然可以在清单中使用。但它是在应用程序上下文中实现运行时的一种好方法。我希望我的PHONE_STATE能够随时准备接听来电;在每次重启时......

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.rushi.boottest">

<uses-sdk
    android:minSdkVersion="16"
    android:targetSdkVersion="26" />

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

<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=".MyReceiver"
        android:enabled="true"
        android:exported="true">
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
        </intent-filter>
    </receiver>

    <service
        android:name=".CatchNumbers"
        android:enabled="true"
        android:exported="true" />
    <service
        android:name=".WatchMan"
        android:enabled="true"
        android:exported="true"></service>
</application>

</manifest>

在上面的manifest.xml中，我没有放置WRITE_EXTERNAL_STORAGE和READ_EXTERNAL_STORAGE。当我实现它运行时，它已经由android studio自动插入。

这是我的OnBoot接收器：

package com.example.rushi.boottest;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.util.Log;
import android.widget.Toast;

public class MyReceiver extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
    Log.d("BootTest : ", "\nOnBootReceiver - Received a broadcast!");
    Toast.makeText(context, "OnBootReceiver Received a broadcast!!", Toast.LENGTH_LONG).show();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
    {
        context.startForegroundService(new Intent(context, WatchMan.class));
    }
    else
    {
        context.startService(new Intent(context, WatchMan.class));
    }
}
}

这是WatchMan.java实现接收器运行时的前台服务

public class WatchMan extends Service
{
NotificationManager mNotifyManager;
NotificationCompat.Builder mBuilder;
NotificationChannel notificationChannel;
String NOTIFICATION_CHANNEL_ID = "17";

private BroadcastReceiver mCallBroadcastReceiver = new BroadcastReceiver()
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        String PhoneNumber = "UNKNOWN";
        Log.d("RECEIVER :  ","IS UP AGAIN....");

        try
        {
            String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
            if(state == null)
            {
                PhoneNumber = "UNKNOWN";
            }
            else if (state.equals(TelephonyManager.EXTRA_STATE_RINGING))
            {
                PhoneNumber = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
                Log.d("RECEIVER : ","Incoming number : "+PhoneNumber);
            }
            if(intent.getAction().equals("android.intent.action.NEW_OUTGOING_CALL"))
            {
                PhoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
                Log.d("RECEIVER : ","Outgoing number : "+PhoneNumber);
            }
            if(!PhoneNumber.contentEquals("UNKNOWN"))
            {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
                {
                    context.startForegroundService(new Intent(context, CatchNumbers.class));
                }
                else
                {
                    context.startService(new Intent(context, CatchNumbers.class));
                }
            }
        }
        catch (Exception e)
        {
            e.printStackTrace();
            Log.e("RECEIVER : ", "Exception is : ", e);
        }
    }
};

public WatchMan() { }

@Override
public void onCreate()
{
    super.onCreate();
    Log.d("WatchMan : ", "\nOnCreate...");

    IntentFilter CallFilter = new IntentFilter();
    CallFilter.addAction("android.intent.action.NEW_OUTGOING_CALL");
    CallFilter.addAction("android.intent.action.PHONE_STATE");
    this.registerReceiver(mCallBroadcastReceiver, CallFilter);

    Log.d("WatchMan : ", "\nmCallBroadcastReceiver Created....");

    mNotifyManager = (NotificationManager) getApplicationContext().getSystemService(NOTIFICATION_SERVICE);
    mBuilder = new NotificationCompat.Builder(this, null);
    mBuilder.setContentTitle("Insta Promo")
            .setContentText("Checking New Numbers")
            .setTicker("Checking New Numbers")
            .setSmallIcon(R.drawable.ic_launcher_background)
            .setPriority(Notification.PRIORITY_LOW)
            .setDefaults(Notification.DEFAULT_ALL)
            .setVisibility(Notification.VISIBILITY_PUBLIC)
            .setOngoing(true)
            .setAutoCancel(false);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
    {
        notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "My Notifications", NotificationManager.IMPORTANCE_HIGH);

        // Configure the notification channel.
        notificationChannel.setDescription("Channel description");
        notificationChannel.enableLights(true);
        notificationChannel.setLightColor(Color.RED);
        notificationChannel.setVibrationPattern(new long[]{0, 1000, 500, 1000});
        notificationChannel.enableVibration(true);
        notificationChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
        mNotifyManager.createNotificationChannel(notificationChannel);

        mBuilder.setChannelId(NOTIFICATION_CHANNEL_ID);
        startForeground(17, mBuilder.build());
    }
    else
    {
        mBuilder.setChannelId(NOTIFICATION_CHANNEL_ID);
        //startForeground(17, mBuilder.build());
        mNotifyManager.notify(17, mBuilder.build());
    }
}

@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
    Log.d("WatchMan : ", "\nmCallBroadcastReceiver Listening....");

    //return super.onStartCommand(intent, flags, startId);

    return START_NOT_STICKY;
}

@Override
public void onDestroy()
{
    this.unregisterReceiver(mCallBroadcastReceiver);
    Log.d("WatchMan : ", "\nDestroyed....");
    Log.d("WatchMan : ", "\nWill be created again....");
}

@Override
public IBinder onBind(Intent intent)
{
    // TODO: Return the communication channel to the service.
    throw new UnsupportedOperationException("Not yet implemented");
}
}

现在在接收器中调用插入电话号码到sqlite数据库表之前;这样您就可以从CatchNumbers.java服务中读取它，并对传入和传出的数字执行您想要的任何操作。希望它可以帮助你或其他人

Answer 2

Sandhya Sasane的解决方案在android 9模拟器上为我工作，收到BOOT_COMPLETED通知（通过“ adb”强制它或重新启动模拟器）。

但是在带有EMUI 9.1.0.119的真实设备上，华为P-Smart永远不会发生：（

Answer 3

以上答案似乎都不对我有用。这是我的解决方案，但在Kotlin中。粘贴代码的以下部分，并根据您的应用更改必要的详细信息。

在Mainactivity中的onCreate方法之后：

override fun onStart() {
    super.onStart()
    var intentfilter1: IntentFilter = IntentFilter("com.spotify.music.playbackstatechanged")

    intentfilter1.addCategory(Intent.CATEGORY_DEFAULT)
    registerReceiver(mreceiver, intentfilter1)


}

override fun onStop() {
    super.onStop()
    unregisterReceiver(mreceiver)
}

在onCreate方法中：

mreceiver = SpotifyBroadcastReceiver()

在MainAvtivity中，使用onCreate方法之前

lateinit var mreceiver: SpotifyBroadcastReceiver

Mainfest.xml文件

     <receiver android:name=".SpotifyBroadcastReceiver" //name of the broadcast receiver class
        android:permission="android.permission.RECEIVE_BOOT_COMPLETED"
        android:enabled="true"
        android:exported="true">
        <intent-filter>
            <action android:name="com.spotify.music.playbackstatechanged" /> //Things required by my broadcast receiver class
        </intent-filter>
    </receiver>

让我知道我是否错过了某些内容，或者您需要与该摘要相关的其他信息。

P.S：我也是kotlin的新手。...我只是分享对我有用的东西。它可能不适用于您的配置，所以编码愉快！！

Answer 4

我也遇到过这种问题，但是我找到了一个更好的解决方案：

@BroadcastReceiverActions({"android.intent.action.SCREEN_ON", "android.intent.action.SCREEN_OFF",
        "android.intent.action.DREAMING_STARTED", "android.intent.action.DREAMING_STOPPED",
        "android.intent.action.ACTION_POWER_DISCONNECTED", "android.intent.action.ACTION_POWER_CONNECTED",
        "android.net.conn.CONNECTIVITY_CHANGE"})
public class MyReceiver extends BroadcastReceiver {

    public MyReceiver() {
        super();
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        Session.getGlobalReceiverCallBack(context, intent);

        //Log.e("dfd", "" + intent.getAction());
    }
}

public class AppController extends Application {

    private BroadcastReceiver receiver;
    MyReceiver mR;

    @Override
    public void onCreate() {
        super.onCreate();
        mR = new MyReceiver();
        receiver = DynamicReceiver.with(mR)
                .register(this);

    }
}

public class MainActivity extends AppCompatActivity implements GlobalReceiverCallBack {

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

    }

    @Override
    public void onCallBackReceived(Context context, Intent intent) {

        Toast.makeText(context, "" + intent.getAction(), Toast.LENGTH_LONG).show();
    }
}

有关完整参考，您还可以参见https://github.com/devggaurav/BroadcastReceiver-For-Naught-and-Oreo-devices

奥利奥：广播接收器不工作

4 个答案: