private BroadcastReceiver Broadcast = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); assert action != null; if (action.equals(Datawedeentity.EXTRA_RESULT_GET_ACTIVE_PROFILE)) { if (intent.hasExtra(Datawedeentity.EXTRA_RESULT_GET_ACTIVE_PROFILE)) { String activeProfile = intent.getStringExtra(Datawedeentity.EXTRA_RESULT_GET_ACTIVE_PROFILE); } } if (action.equals(Datawedeentity.ACTIVITY_INTENT_FILTER_ACTION)) { // Received a barcode scan displayScanResult(intent, "via Broadcast"); } } };

这段代码是什么意思？

这段代码定义了一个BroadcastReceiver（广播接收器），可以接收两个不同的广播意图。第一个广播意图是Datawedeentity.EXTRA_RESULT_GET_ACTIVE_PROFILE，会获取一个字符串类型的参数activeProfile。第二个广播意图是Datawedeentity.ACTIVITY_INTENT_FILTER_ACTION，会调用displayScanResult方法，并将意图和字符串"via Broadcast"作为参数传递给它。

相关问题

private BroadcastReceiver Broadcast = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); assert action != null; if (action.equals(Datawedeentity.EXTRA_RESULT_GET_ACTIVE_PROFILE)) { if (intent.hasExtra(Datawedeentity.EXTRA_RESULT_GET_ACTIVE_PROFILE)) { String activeProfile = intent.getStringExtra(Datawedeentity.EXTRA_RESULT_GET_ACTIVE_PROFILE); } } if (action.equals(Datawedeentity.ACTIVITY_INTENT_FILTER_ACTION)) { displayScanResult(intent, "via Broadcast"); } } };

这段代码定义了一个名为 `Broadcast` 的 BroadcastReceiver 对象。当接收到广播时，`onReceive()` 方法将被调用。在这个方法中，首先获取广播的 action，然后根据 action 的值进行不同的处理。如果接收到的是 `Datawedeentity.EXTRA_RESULT_GET_ACTIVE_PROFILE` 的广播，就从 intent 中获取额外信息 `Datawedeentity.EXTRA_RESULT_GET_ACTIVE_PROFILE` 的值，并存储在 `activeProfile` 变量中。如果接收到的是 `Datawedeentity.ACTIVITY_INTENT_FILTER_ACTION` 的广播，就调用 `displayScanResult()` 方法，并将 intent 和字符串 "via Broadcast" 作为参数传递。这段代码的作用是接收广播，并根据广播的不同 action 做出不同的响应。

修改下面代码，使得com.wing.MyBroadcastReceiver监听到广播android.intent.action.TEST_BROADCAST的时候启用com.modemdug.ModemDumpCollectservice，而不是com.wing.ModemDebugService package com.example.myapplication; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.os.Handler; import android.util.Log; public class MyBroadcastReceiver extends BroadcastReceiver { private static final String TAG = "MyBroadcastReceiver"; private static final int SERVICE_STOP_DELAY = 1* 60 * 1000; // 5分钟 private Context mContext; private Handler mHandler = new Handler(); private Runnable mStopServiceRunnable = new Runnable() { @Override public void run() { stopModemDebugService(); } }; @Override public void onReceive(Context context, Intent intent) { mContext = context; // TODO Auto-generated method stub if(null == context){ return; } Log.d(TAG, "onReceive: " + intent.getAction()); if (intent.getAction().equals("android.intent.action.TEST_BROADCAST")) { startModemDebugService(); mHandler.postDelayed(mStopServiceRunnable, SERVICE_STOP_DELAY); } } private void startModemDebugService() { Intent intent = new Intent(mContext, ModemDebugService.class); Log.d(TAG,"receiver ACTION BOOT COMPLETED"); Log.d(TAG,"Globle version start ModemDebugservie"); mContext.startService(intent); Log.i(TAG,"startService ModemDebug Service"); } private void stopModemDebugService() { Intent intent = new Intent(mContext, ModemDebugService.class); Log.d(TAG,"receiver tiemr out ACTION BOOT COMPLETED"); Log.d(TAG,"Globle version end ModemDebugservie"); mContext.stopService(intent); Log.i(TAG,"StopService ModemDebug Service"); } }

请将以下代码替换为 `startModemDebugService()` 方法：

private void startModemDebugService() {
    Intent intent = new Intent("com.modemdug.ModemDumpCollectservice");
    Log.d(TAG, "receiver ACTION TEST_BROADCAST");
    Log.d(TAG, "Globle version start ModemDumpCollectservice");
    mContext.startService(intent);
    Log.i(TAG, "startService ModemDumpCollectservice");
}

这将使用 `Intent` 启动名称为 `com.modemdug.ModemDumpCollectservice` 的服务。