Android监听外部存储设备的状态（SD卡、U盘等等）

来源：互联网发布：origin论文作图软件编辑：程序博客网时间：2024/04/28 11:52

最近在项目中需要对外部存储设备的状态进行监听，所以整理了此笔记，以便日后查看。

外部存储设备的状态变化时发出的广播

对比不同状态下的广播

1. 插入外部SD卡时：

2. 移除外部SD卡时：

3. 连接PC进入USB大容量存储模式时：

4. 连接PC退出USB大容量存储模式时：

代码实现监听

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<strong>    publicvoid startListen() 
    { 
        IntentFilter intentFilter = newIntentFilter(Intent.ACTION_MEDIA_MOUNTED); 
        intentFilter.setPriority(1000);   
        intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 
        intentFilter.addAction(Intent.ACTION_MEDIA_REMOVED); 
        intentFilter.addAction(Intent.ACTION_MEDIA_SHARED); 
        intentFilter.addAction(Intent.ACTION_MEDIA_BAD_REMOVAL);  
        intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 
        intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);  
        intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 
        intentFilter.addAction(Intent.ACTION_MEDIA_EJECT); 
        intentFilter.addAction(Intent.ACTION_MEDIA_NOFS); 
        intentFilter.addAction(Intent.ACTION_MEDIA_BUTTON); 
        intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); 
        intentFilter.addDataScheme("file"); 
        registerReceiver(broadcastRec, intentFilter); 
    } 
       
    privatefinal BroadcastReceiver broadcastRec = newBroadcastReceiver() {   
        @Override   
        publicvoid onReceive(Context context, Intent intent) {   
            String action = intent.getAction();  
            Log.d("MediaAction", action); 
            if(action.equals("android.intent.action.MEDIA_MOUNTED")) 
            {   
                //todo 
            } elseif (action.equals(Intent.ACTION_MEDIA_UNMOUNTED))  
            {   
                //todo 
            }elseif (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)){ 
            }elseif (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)){ 
            }elseif (action.equals(Intent.ACTION_MEDIA_SHARED)){ 
            }else{  
            }   
        }   
    };   </strong>

来自：http://blog.csdn.net/giantgreen/article/details/41991291

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