android.content.Intent#ACTION_MEDIA_EJECT源码实例Demo

private void installIntentFilter()
{
    // install an intent filter to receive SD card related events.
    IntentFilter intentFilter =
            new IntentFilter(Intent.ACTION_MEDIA_EJECT);
    intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED);
    intentFilter.addDataScheme("file");
    mReceiver = new MyBroadcastReceiver();
    mActivity.registerReceiver(mReceiver, intentFilter);
}
 

@Override
public void onReceive(Context context, Intent intent) {
    if (intent.getAction() == Intent.ACTION_MEDIA_EJECT) {
        //do nothings
    } else if (intent.getAction() == Intent.ACTION_MEDIA_SHARED) {
        //do nothings
    } else if (intent.getAction() == Intent.ACTION_MEDIA_BAD_REMOVAL) {
        //do nothings
    } else if (intent.getAction() == Intent.ACTION_MEDIA_REMOVED) {
        notifyStorageRemove(context);
    } else if (intent.getAction() == Intent.ACTION_MEDIA_MOUNTED) {
        notifyStorageMount(context);
    }

}
 

public void onCreate() {
    new Thread(() -> {
        Looper.prepare();
        eventLooper = Looper.myLooper();
        eventHandler = new Handler(eventLooper);

        // Deserialize queue before starting looper
        try {
            lock.lock();
            deserializeDownloadQueueNow();

            // Wait until PREPARING is done to mark lifecycle as ready to receive events
            while (downloadService.getPlayerState() == PREPARING) {
                Util.sleepQuietly(50L);
            }

            setup.set(true);
        } finally {
            lock.unlock();
        }

        Looper.loop();
    }, "DownloadServiceLifecycleSupport").start();

    // Stop when SD card is ejected.
    ejectEventReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            externalStorageAvailable = Intent.ACTION_MEDIA_MOUNTED.equals(intent.getAction());
            if (!externalStorageAvailable) {
                Log.i(TAG, "External media is ejecting. Stopping playback.");
                downloadService.reset();
            } else {
                Log.i(TAG, "External media is available.");
            }
        }
    };
    IntentFilter ejectFilter = new IntentFilter(Intent.ACTION_MEDIA_EJECT);
    ejectFilter.addAction(Intent.ACTION_MEDIA_MOUNTED);
    ejectFilter.addDataScheme("file");
    downloadService.registerReceiver(ejectEventReceiver, ejectFilter);

    // React to media buttons.
    Util.registerMediaButtonEventReceiver(downloadService);

    // Pause temporarily on incoming phone calls.
    phoneStateListener = new MyPhoneStateListener();

    // Android 6.0 removes requirement for android.Manifest.permission.READ_PHONE_STATE;
    TelephonyManager telephonyManager = (TelephonyManager) downloadService.getSystemService(Context.TELEPHONY_SERVICE);
    telephonyManager.listen(phoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);

    // Register the handler for outside intents.
    IntentFilter commandFilter = new IntentFilter();
    commandFilter.addAction(DownloadService.CMD_PLAY);
    commandFilter.addAction(DownloadService.CMD_TOGGLEPAUSE);
    commandFilter.addAction(DownloadService.CMD_PAUSE);
    commandFilter.addAction(DownloadService.CMD_STOP);
    commandFilter.addAction(DownloadService.CMD_PREVIOUS);
    commandFilter.addAction(DownloadService.CMD_NEXT);
    commandFilter.addAction(DownloadService.CANCEL_DOWNLOADS);
    downloadService.registerReceiver(intentReceiver, commandFilter);

    new CacheCleaner(downloadService, downloadService).clean();
}
 

public void onCreate() {
	new Thread(new Runnable() {
		@Override
		public void run() {
			Looper.prepare();
			eventLooper = Looper.myLooper();
			eventHandler = new Handler(eventLooper);

			// Deserialize queue before starting looper
			try {
				lock.lock();
				deserializeDownloadQueueNow();

				// Wait until PREPARING is done to mark lifecycle as ready to receive events
				while(downloadService.getPlayerState() == PREPARING) {
					Util.sleepQuietly(50L);
				}

				setup.set(true);
			} finally {
				lock.unlock();
			}

			Looper.loop();
		}
	}, "DownloadServiceLifecycleSupport").start();

	// Stop when SD card is ejected.
	ejectEventReceiver = new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
			externalStorageAvailable = Intent.ACTION_MEDIA_MOUNTED.equals(intent.getAction());
			if (!externalStorageAvailable) {
				Log.i(TAG, "External media is ejecting. Stopping playback.");
				downloadService.reset();
			} else {
				Log.i(TAG, "External media is available.");
			}
		}
	};
	IntentFilter ejectFilter = new IntentFilter(Intent.ACTION_MEDIA_EJECT);
	ejectFilter.addAction(Intent.ACTION_MEDIA_MOUNTED);
	ejectFilter.addDataScheme("file");
	downloadService.registerReceiver(ejectEventReceiver, ejectFilter);

	// React to media buttons.
	Util.registerMediaButtonEventReceiver(downloadService);

	// Pause temporarily on incoming phone calls.
	phoneStateListener = new MyPhoneStateListener();

	// Android 6.0 removes requirement for android.Manifest.permission.READ_PHONE_STATE;
	TelephonyManager telephonyManager = (TelephonyManager) downloadService.getSystemService(Context.TELEPHONY_SERVICE);
	telephonyManager.listen(phoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);

	// Register the handler for outside intents.
	IntentFilter commandFilter = new IntentFilter();
	commandFilter.addAction(DownloadService.CMD_PLAY);
	commandFilter.addAction(DownloadService.CMD_TOGGLEPAUSE);
	commandFilter.addAction(DownloadService.CMD_PAUSE);
	commandFilter.addAction(DownloadService.CMD_STOP);
	commandFilter.addAction(DownloadService.CMD_PREVIOUS);
	commandFilter.addAction(DownloadService.CMD_NEXT);
	commandFilter.addAction(DownloadService.CANCEL_DOWNLOADS);
	downloadService.registerReceiver(intentReceiver, commandFilter);

	new CacheCleaner(downloadService, downloadService).clean();
}