收听Android派中的广播广播接收器

时间：2019-04-22 11:55:25

标签： android broadcastreceiver

我正在尝试使应用程序侦听呼叫（传入和传出），我现在要做的只是在清单中注册接收器，这在9.0以下的Android中非常有效。 但是，当我在Android oreo上测试该应用程序时出现了问题，我知道某些广播已被禁用。 我试图提供一个前台服务来注册接收者并收听此广播，但它再次适用于oreo以下的版本。

我不知道该怎么办，我必须让它正常工作，我不在乎它是否会过分优雅，我不会发布此应用，我只需要它供私人使用。 / p>

摘要：即使该应用当前未激活，我也需要收听Android Pie中的通话

清单

<receiver android:name=".MyReceiver">
        <intent-filter>
            <action android:name="android.intent.action.PHONE_STATE" />
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.NEW_OUTGOING_CALL" />
        </intent-filter>
    </receiver>

MyReceiver 

public class MyReceiver extends BroadcastReceiver {


private static Date callStartTime;
private static boolean isIncoming;
private static int lastState;
private static String savedNumber;
private static String savedOutgoingNumber;
private TelephonyManager tm;


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

    //We listen to two intents.  The new outgoing call only tells us of an outgoing call.  We use it to get the number.
    if (intent.getAction().equals("android.intent.action.NEW_OUTGOING_CALL")) {
        savedNumber = intent.getExtras().getString("android.intent.extra.PHONE_NUMBER");
    }
    else{
        String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
        String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
        int state = 0;
        if(stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)){
            state = TelephonyManager.CALL_STATE_IDLE;
        }
        else if(stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)){
            state = TelephonyManager.CALL_STATE_OFFHOOK;
        }
        else if(stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)){
            state = TelephonyManager.CALL_STATE_RINGING;
        }


        onCallStateChanged(context, state, number);
    }
}

'

问题是它甚至在android oreo上都没有被调用 编辑：我让它可以在android oreo上工作，但是在android pie中有问题

另一个编辑：

  @Override
public void onCreate() {
    super.onCreate();

    createNotificationChannel();

    IntentFilter filter = new IntentFilter();
    filter.addAction("android.intent.action.PHONE_STATE");
    filter.addAction("android.intent.action.NEW_OUTGOING_CALL");

    BroadcastReceiver receiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
                CallListenerService.this.onReceive(intent);
        }
    };
    registerReceiver(receiver, filter);


}


public void onReceive(Intent i){
    if (i.getAction().equals("android.intent.action.NEW_OUTGOING_CALL")) {
        savedNumber = i.getExtras().getString("android.intent.extra.PHONE_NUMBER");
    }
    else{
        String stateStr = i.getExtras().getString(TelephonyManager.EXTRA_STATE);
        String number = i.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
        int state = 0;
        if(stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)){
            state = TelephonyManager.CALL_STATE_IDLE;
        }
        else if(stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)){
            state = TelephonyManager.CALL_STATE_OFFHOOK;
        }
        else if(stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)){
            state = TelephonyManager.CALL_STATE_RINGING;
        }


        onCallStateChanged(this, state, number);
    }
}

其余的都没关系，只需在通话结束时开始一项活动即可测试它是否正常运行

我添加了一个注册接收者的fourground服务，该服务在android oreo上有效，但在android pie上仍然存在问题。

Edit：解决方案是混合使用一系列答案，直到在每个设备上都可以使用为止。 我写了这样的小节清单：

<receiver
        android:name=".MyReceiver"
        android:enabled="true">
        <intent-filter android:priority="1000">
            <action android:name="android.intent.action.PHONE_STATE" />
        </intent-filter>
        <intent-filter android:priority="1000">
            <action android:name="android.intent.action.NEW_OUTGOING_CALL" 
          />
        </intent-filter>
</receiver>

真的不知道那是什么。 再者，我使用的是普通的广播演员接收器，而不是服务，我也不知道发生了什么，但是突然间它在某些设备上起作用了。

现在有了最后的联系，我发现可以通过阅读通话记录来获取电话号码，所以我要做的就是添加以下代码：

   protected void onMissedCall(final Context ctx, String number, Date start) {


    if (PreferenceManager.getDefaultSharedPreferences(ctx).getBoolean("missed_calls", false)) {

        if (number == null) {

            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    final String phoneNumber = getLastCallNumber(ctx);
                    if (phoneNumber != null) {
                        Intent intent = new Intent(ctx, Dialog.class);
                        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        intent.putExtra("number", phoneNumber);
                        intent.putExtra("missed_call", true);
                        ctx.startActivity(intent);
                    } else {
                        Toast.makeText(ctx, "cannot get phone number", Toast.LENGTH_SHORT).show();
                    }
                }
            }, 2000);

        } else {
            Intent intent = new Intent(ctx, Dialog.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            intent.putExtra("number", number);
            intent.putExtra("missed_call", true);
            ctx.startActivity(intent);
        }
    }


}

private String getLastCallNumber(Context context) {

    Uri contacts = CallLog.Calls.CONTENT_URI;
    if (ActivityCompat.checkSelfPermission(context, android.Manifest.permission.READ_CALL_LOG) != PackageManager.PERMISSION_GRANTED) {
        Toast.makeText(context, "Permission denied can not get phone number", Toast.LENGTH_SHORT).show();
    }
    Cursor managedCursor = context.getContentResolver().query(
            contacts, null, null, null, null);
    int number = managedCursor.getColumnIndex( CallLog.Calls.NUMBER );
    String phoneNumber = null;
    if( managedCursor.moveToLast() == true ) {
        phoneNumber = managedCursor.getString( number );
    }
    managedCursor.close();




    return phoneNumber;

}

我添加了if行，该行检查数字是否为null，如果是，它将启动一个处理程序，使其从2秒钟开始运行，当处理程序启动时，我从呼叫日志中读取了最后一个数字。 号码进入通话记录会有2秒钟的延迟，如果您尝试立即读取该号码将不起作用。

3 个答案:

答案 0 :(得分：0)

我还创建了一个CallReceiver：-

public class CallReceiver extends BroadcastReceiver {

    private static int lastState = TelephonyManager.CALL_STATE_IDLE;
    private static Date callStartTime;
    private static boolean isIncoming;
    private static String savedNumber;
    public static MyCallsAppDatabase myCallsAppDatabase;

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals("android.intent.action.NEW_OUTGOING_CALL")) {
            savedNumber = intent.getExtras().getString("android.intent.extra.PHONE_NUMBER");
        } else {
            String stateStr = intent.getExtras().getString(TelephonyManager.EXTRA_STATE);
            String number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
            int state = 0;
            if (stateStr.equals(TelephonyManager.EXTRA_STATE_IDLE)) {
                state = TelephonyManager.CALL_STATE_IDLE;
            } else if (stateStr.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
                state = TelephonyManager.CALL_STATE_OFFHOOK;
            } else if (stateStr.equals(TelephonyManager.EXTRA_STATE_RINGING)) {
                state = TelephonyManager.CALL_STATE_RINGING;
            }
            onCallStateChanged(context, state, number, intent);
        }
    }

    public void onCallStateChanged(Context context, int state, String number, Intent intent) {
        if (lastState == state) {
            //No change, debounce extras
            return;
        }
        switch (state) {
            case TelephonyManager.CALL_STATE_RINGING:
                isIncoming = true;
                callStartTime = new Date();
                onIncomingCallStarted(context, number, callStartTime, intent);
                break;
            case TelephonyManager.CALL_STATE_OFFHOOK:
                //Transition of ringing->offhook are pickups of incoming calls.  Nothing done on them
                if (lastState != TelephonyManager.CALL_STATE_RINGING) {
                    isIncoming = false;
                    callStartTime = new Date();
                    onOutgoingCallStarted(context, number, callStartTime, intent);
                }
                break;
            case TelephonyManager.CALL_STATE_IDLE:
                //Went to idle-  this is the end of a call.  What type depends on previous state(s)
                if (lastState == TelephonyManager.CALL_STATE_RINGING) {
                    //Ring but no pickup-  a miss
                    onMissedCall(context, number, callStartTime, intent);
                } else if (isIncoming) {
                    onIncomingCallEnded(context, number, callStartTime, new Date(), intent);
                } else {
                    onOutgoingCallEnded(context, number, callStartTime, new Date(), intent);
                }
                break;
        }
        lastState = state;
        Intent intent1 = new Intent("CallApp");
        context.sendBroadcast(intent1);
    }

    protected void onIncomingCallStarted(Context ctx, String number, Date start, Intent intent) {
//        Toast.makeText(ctx, "calling from " + number, Toast.LENGTH_SHORT).show();
    }

    protected void onOutgoingCallStarted(Context ctx, String number, Date start, Intent intent) {
//        Toast.makeText(ctx, "calling to " + number, Toast.LENGTH_SHORT).show();
    }

    protected void onIncomingCallEnded(Context ctx, String number, Date start, Date end, Intent intent) {
//        Toast.makeText(ctx, "calling from " + number + " ended ", Toast.LENGTH_SHORT).show();
        saveData(ctx, number, intent, "Incoming Call");
    }

    protected void onOutgoingCallEnded(Context ctx, String number, Date start, Date end, Intent intent) {
//        Toast.makeText(ctx, "calling to " + number + " ended ", Toast.LENGTH_SHORT).show();
        saveData(ctx, number, intent, "Outgoing Call");
    }

    protected void onMissedCall(Context ctx, String number, Date start, Intent intent) {
//        Toast.makeText(ctx, "missed call from " + number + " sim ", Toast.LENGTH_SHORT).show();
        saveData(ctx, number, intent, "Missed Call");
    }

    @SuppressLint("ServiceCast")
    protected void saveData(Context ctx, String number, Intent intent, String callType) {

        myCallsAppDatabase = Room.databaseBuilder(ctx, MyCallsAppDatabase.class, "calldb")
                .allowMainThreadQueries()
                .build();

        number = intent.getExtras().getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
        number = filterNumber(number);
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss aaa");
        String dateString = dateFormat.format(new Date(System.currentTimeMillis()));
        CallLog callLog = new CallLog();
        callLog.setMobile(number);
        callLog.setCallType(callType);
        callLog.setTime(dateString);
        myCallsAppDatabase.myCallDao().addCallDetails(callLog);
    }
}

在Manifest.xml文件中：-

<receiver android:name=".broadcaestReceiver.CallReceiver">
            <intent-filter>
                <action android:name="android.intent.action.PHONE_STATE" />
            </intent-filter>
        </receiver>

答案 1 :(得分：0)

如下所示更改清单文件中的代码，并将Priority设置为high。   我认为当应用程序在后台运行时，需要这些清单代码。 

 <receiver android:name=".MyReceiver">
    <intent-filter android:priority="1000">
        <action android:name="android.intent.action.PHONE_STATE" />
        <action android:name="android.intent.action.NEW_OUTGOING_CALL" />
    </intent-filter>
</receiver>


 This programatic code needs to wake ups the Reciever when app is foreground ie. when the the User is dealing with the actions of BroadcasteReciever from Activity.  (The Reciever needs to Register in onresume && unRegister it in onDestroy() )

 IntentFilter filter = new IntentFilter();
 filter.addAction("android.intent.action.PHONE_STATE");
 filter.addAction("android.intent.action.NEW_OUTGOING_CALL");
 filter.setPriority(1000);

 BroadcastReceiver receiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
            CallListenerService.this.onReceive(intent);
    }
};
registerReceiver(receiver, filter);

答案 2 :(得分：0)

您正在使用哪个Android设备？ 我也遇到过这样的错误，该错误仅在应用程序运行时才接收。然后我发现我的设备处于省电模式，该模式限制了广播，我们可以在“设置”>“电池管理”中为特定应用自定义这些设置。 我的设备是Android版本Pie的Honor 9 lite。 如果问题仍然存在，请尝试广播广播接收器中的onReceive（）方法的第一行。如果您收到吐司，则您的应用程序正在接收广播，但是代码中将出现问题。

尝试在不同的设备上运行相同的代码。可能是您的设备设置有问题。

相关问题
最新问题