Question

我有一个主要活动和一个从LogCat收集日志的服务服务运行正常，直到它必须将结果广播回主要活动
广播结果broadcast(logBuffer)广播但从未收到
广播状态，broadcast(Status.FINISHED)广播后收到正常 运行的LogCat日志显示收集并广播日志。

注意：我尝试使用sendOrderedBroadcast（），但问题仍然存在。

服务相关代码：

private void broadcast(Status status) {
    Log.d(TAG, "+ broadcast(status: " + status + ")");
    Intent broadcastIntent = new Intent(MainActivity.StatusReceiver.ACTION_STATUS);
    broadcastIntent.putExtra("STATUS", status);
    sendBroadcast(broadcastIntent);
    Log.d(TAG, "- broadcast()");
}

private void broadcast(ArrayList<String> logs) {
    Log.d(TAG, "+ broadcast(logs: " + logs + ")");
    Intent broadcastIntent = new Intent(MainActivity.StatusReceiver.ACTION_RESULT);
    broadcastIntent.putExtra("LOGS", logs);
    sendBroadcast(broadcastIntent);
    Log.d(TAG, "- broadcast()");
}


@Override
protected void onHandleIntent(Intent workIntent) {

    .... some background collection work

    broadcast(logBuffer);
    broadcast(Status.FINISHED);
    Log.d(TAG, "- onHandleIntent()");
}

主要活动相关代码：

public class StatusReceiver extends BroadcastReceiver {

    public static final String ACTION_STATUS = "com.devilstate.auxapp.action.STATUS_CHANGED";
    public static final String ACTION_RESULT = "com.devilstate.auxapp.action.RESULTS_READY";

    @Override
    public void onReceive(Context context, Intent intent) {
        Log.d(TAG, "+ onReceive(context:" + context + ", intent:" + intent + ")");
        String action = intent.getAction();
        Log.w(TAG, action);
        if( action.equals(ACTION_STATUS) ) {

            Status status = (Status) intent.getSerializableExtra("STATUS");
            switch( status ) {
            case COLLECTING:
                if( mState == State.INIT || mState == State.WAIT_FOR_RUNNING ) {
                    setViewState(State.RUNNING);
                }
                break;
            case FINISHED:
                if( mState == State.RUNNING || mState == State.WAIT_FOR_DONE ) {
                    setViewState(State.DONE);
                }
                break;
            }

        } else if( action.equals(ACTION_RESULT) ) {

            logBuffer.clear();
            logBuffer = (ArrayList<String>) intent.getSerializableExtra("LOGS");
        }
        Log.d(TAG, "- onReceive()");
    }

}

LogCat相关消息：

02-19 20:30:13.338: D/LogCollectorService(3880): + broadcast(logs: [02-19 20:17:37.229 I/ActivityManager(10160): Displayed com.devilstate.auxapp/.MainActivity: +8s703ms, 02-19 20:17:37.300 W/NetworkManagementSocketTagger(10160): setKernelCountSet(10013, 0) failed with errno -2, 02-19 20:17:44.928 D/MainActivity( 2372): + onStartStopButtonClick(v:android.widget.Button@41035cf8), 02-19 20:17:44.963 D/MainActivity( 2372): - onStartStopButtonClick(), 02-19 20:17:44.980 D/LogCollectorService( 2372): + onHandleIntent(workIntent: Intent { cmp=com.devilstate.auxapp/.LogCollectorService }), 02-19 20:17:44.980 D/LogCollectorService( 2372): + broadcast(status: COLLECTING), 02-19 20:17:45.208 D/MainActivity( 2372): + onReceive(context:com.devilstate.auxapp.MainActivity@41025408, intent:Intent { act=com.devilstate.auxapp.action.STATUS_CHANGED cat=[android.intent.category.DEFAULT] flg=0x10 (has extras) }), 02-19 20:17:45.218 D/LogCollectorService( 2372): - broadcast(), 02-19 20:17:46.128 D/dalvikvm( 2372): threadid=1: still suspended after undo (sc=1 dc=1), 02-19 20:17:46.368 D/dalvikvm( 2372): threadid=1: still suspended after undo (sc=1 dc=1), 02-19 20:17:46.418 D/dalvikvm( 2372): GC_CONCURRENT freed 220K, 5% free 6701K/7047K, paused 8ms+8ms, 02-19 20:17:49.863 W/MainActivity( 2372): com.devilstate.auxapp.action.STATUS_CHANGED, 02-19 20:17:50.030 D/MainActivity( 2372): + setViewState(state:RUNNING), 02-19 20:17:50.038 I/MainActivity( 2372): Current State:WAIT_FOR_RUNNING, 02-19 20:17:50.080 I/MainActivity( 2372): New State:RUNNING, 02-19 20:17:50.080 D/MainActivity( 2372): - setViewState(), 02-19 20:17:50.112 D/MainActivity( 2372): - onReceive(), 02-19 20:17:52.989 I/ActivityManager(10160): START {act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10200000 cmp=com.android.launcher/com.android.launcher2.Launcher} from pid 10160, 02-19 20:17:53.009 W/WindowManager(10160): Failure taking screenshot for (250x135) to layer 21010, 02-19 20:17:53.039 W/NetworkManagementSocketTagger(10160): setKernelCountSet(10013, 1) failed with errno -2, 02-19 20:17:54.309 D/MainActivity( 2372): + onStop(), 02-19 20:17:54.440 D/MainActivity( 2372): - onStop(), 02-19 20:17:54.509 W/NetworkManagementSocketTagger(10160): setKernelCountSet(10040, 0) failed with errno -2, 02-19 20:17:56.039 I/ActivityManager(10160): START {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.devilstate.auxapp/.MainActivity bnds=[400,344][496,440]} from pid 10283, 02-19 20:17:56.039 W/WindowManager(10160): Failure taking screenshot for (250x135) to layer 21010, 02-19 20:17:56.089 W/NetworkManagementSocketTagger(10160): setKernelCountSet(10040, 1) failed with errno -2, 02-19 20:17:56.139 D/MainActivity( 2372): + onStart(), 02-19 20:17:56.139 D/MainActivity( 2372): + updateViewState(), 02-19 20:17:56.179 D/LogCollectorService( 2372): + isRunning(), 02-19 20:17:56.179 D/LogCollectorService( 2372): - isRunning(): true, 02-19 20:17:56.215 D/MainActivity( 2372): + setViewState(state:RUNNING), 02-19 20:17:56.215 I/MainActivity( 2372): Current State:RUNNING, 02-19 20:17:56.339 I/MainActivity( 2372): New State:RUNNING, 02-19 20:17:56.339 D/MainActivity( 2372): - setViewState(), 02-19 20:17:56.349 D/MainActivity( 2372): - updateViewState(), 02-19 20:17:56.389 D/MainActivity( 2372): - onStart(), 02-19 20:17:56.589 I/Process (10160): Sending signal. PID: 2372 SIG: 3, 02-19 20:17:56.589 I/dalvikvm( 2372): threadid=3: reacting to signal 3, 02-19 20:17:56.740 I/dalvikvm( 2372): Wrote stack traces to '/data/anr/traces.txt', 02-19 20:17:57.519 W/NetworkManagementSocketTagger(10160): setKernelCountSet(10013, 0) failed with errno -2, 02-19 20:17:58.869 D/MainActivity( 2372): + onStartStopButtonClick(v:android.widget.Button@41035cf8), 02-19 20:17:58.869 D/LogCollectorService( 2372): + forceStop(): false, 02-19 20:17:58.899 D/LogCollectorService( 2372): - forceStop(): true, 02-19 20:17:58.899 D/MainActivity( 2372): - onStartStopButtonClick(), 02-19 20
02-19 20:30:13.428: D/LogCollectorService(3880): - broadcast()
02-19 20:30:13.428: D/LogCollectorService(3880): + broadcast(status: FINISHED)
02-19 20:30:13.438: D/MainActivity(3880): + onReceive(context:com.devilstate.auxapp.MainActivity@41027a70, intent:Intent { act=com.devilstate.auxapp.action.STATUS_CHANGED cat=[android.intent.category.DEFAULT] flg=0x10 (has extras) })
02-19 20:30:13.438: W/MainActivity(3880): com.devilstate.auxapp.action.STATUS_CHANGED
02-19 20:30:13.450: D/MainActivity(3880): + setViewState(state:DONE)
02-19 20:30:13.450: D/MainActivity(3880): - setViewState()
02-19 20:30:13.450: D/MainActivity(3880): - onReceive()
02-19 20:30:13.478: D/LogCollectorService(3880): - broadcast()
02-19 20:30:13.478: D/LogCollectorService(3880): - onHandleIntent()

如果不清楚，我想知道为什么没有在MainActivity端收到结果缓冲区

Answer 1

发现问题（非常傻）

我没有将ACTION_RESULT添加到广播意图过滤器。这就是接收器没有响应broadcast(ACTION_RESULT)的原因。一旦我添加它就完美地工作了

    // Register the broadcast receiver
    IntentFilter filter = new IntentFilter();
    filter.addAction(StatusReceiver.ACTION_STATUS);
    filter.addAction(StatusReceiver.ACTION_RESULT);
    filter.addCategory(Intent.CATEGORY_DEFAULT);
    receiver = new StatusReceiver();
    registerReceiver(receiver, filter);

Android服务结果广播没有被广播

1 个答案: