Android 插拔sd廣播

項目中要做媒體掃描，需要檢測sd插拔事件。寫了個demo分析下。

[java]
mReceiver = new BroadcastReceiver() { 
            @Override 
            public void onReceive(Context context, Intent intent) { 
                onReceiveMediaBroadcast(intent); 
            } 
        }; 
 mReceiver = new BroadcastReceiver() {
             @Override
             public void onReceive(Context context, Intent intent) {
                 onReceiveMediaBroadcast(intent);
             }
         };
[java]
//onReceive方法：  
    private void onReceiveMediaBroadcast(Intent intent) { 
            String action = intent.getAction(); 
            if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) { 
                Log.i(Intent.ACTION_MEDIA_MOUNTED); 
            } else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED)) { 
                Log.i(Intent.ACTION_MEDIA_UNMOUNTED); 
            } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 
                Log.i(Intent.ACTION_MEDIA_SCANNER_STARTED); 
            } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 
                Log.i(Intent.ACTION_MEDIA_SCANNER_FINISHED); 
            } else if (action.equals(Intent.ACTION_MEDIA_BAD_REMOVAL)) { 
                Log.i(Intent.ACTION_MEDIA_BAD_REMOVAL); 
            } 
            else if (action.equals(Intent.ACTION_MEDIA_EJECT)) { 
                Log.i(Intent.ACTION_MEDIA_EJECT); 
            } 
            else if (action.equals(Intent.ACTION_MEDIA_REMOVED)) { 
                Log.i(Intent.ACTION_MEDIA_REMOVED); 
            } 
        } 
//onReceive方法：
 private void onReceiveMediaBroadcast(Intent intent) {
         String action = intent.getAction();
         if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) {
          Log.i(Intent.ACTION_MEDIA_MOUNTED);
         } else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED)) {
          Log.i(Intent.ACTION_MEDIA_UNMOUNTED);
         } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) {
          Log.i(Intent.ACTION_MEDIA_SCANNER_STARTED);
         } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) {
          Log.i(Intent.ACTION_MEDIA_SCANNER_FINISHED);
         } else if (action.equals(Intent.ACTION_MEDIA_BAD_REMOVAL)) {
          Log.i(Intent.ACTION_MEDIA_BAD_REMOVAL);
         }
         else if (action.equals(Intent.ACTION_MEDIA_EJECT)) {
          Log.i(Intent.ACTION_MEDIA_EJECT);
         }
         else if (action.equals(Intent.ACTION_MEDIA_REMOVED)) {
          Log.i(Intent.ACTION_MEDIA_REMOVED);
         }
     }
[java]
//註冊廣播接收器：  
        IntentFilter intentFilter = new IntentFilter(); 
        intentFilter.addAction(Intent.ACTION_MEDIA_MOUNTED); 
        intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 
        intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 
        intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 
        intentFilter.addAction(Intent.ACTION_MEDIA_EJECT); 
        intentFilter.addAction(Intent.ACTION_MEDIA_BAD_REMOVAL); 
        intentFilter.addAction(Intent.ACTION_MEDIA_REMOVED); 
        intentFilter.addDataScheme("file"); 
        registerReceiver(mReceiver, intentFilter); 
 //註冊廣播接收器：
         IntentFilter intentFilter = new IntentFilter();
         intentFilter.addAction(Intent.ACTION_MEDIA_MOUNTED);
         intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);
         intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED);
         intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);
         intentFilter.addAction(Intent.ACTION_MEDIA_EJECT);
         intentFilter.addAction(Intent.ACTION_MEDIA_BAD_REMOVAL);
         intentFilter.addAction(Intent.ACTION_MEDIA_REMOVED);
         intentFilter.addDataScheme("file");
         registerReceiver(mReceiver, intentFilter);
log資訊：
插卡：系統打出來的狀態，{removed}->{unmounted}->{checking}->{mounted}
    我的程式列印資訊，android.intent.action.MEDIA_UNMOUNTED->android.intent.action.MEDIA_MOUNTED
                  ->android.intent.action.MEDIA_SCANNER_STARTED->android.intent.action.MEDIA_SCANNER_FINIDHED
拔卡：系統打出來的狀態，{mounted}->{umounted}->{removed}
    我的程式列印資訊，android.intent.action.MEDIA_EJECT->android.intent.action.MEDIA_UNMOUNTED
                  ->android.intent.action.MEDIA_REMOVED

 

摘自  痛而不言，笑而不語