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提供一个监听方法BroadcastReceiver 设置IntentFilter为：Intent.ACTION_MEDIA_MOUNTEDIntent.AC TION_MEDIA_EJECTIntent.ACTION_MEDIA_REMOVED 然后再public void onReceive(Context context, Intent intent) 中实现你的启动逻辑startActivity
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | private final BroadcastReceiver broadcastRec = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if(intent.getAction().equals("android.intent.action.MEDIA_MOUNTED"))//SD 卡已经成功挂载 { imagepath = android.os.Environment.getExternalStorageDirectory();//你的SD卡路径 }else if(intent.getAction().equals("android.intent.action.MEDIA_REMOVED")//各种未挂载状态 ||intent.getAction().equals("android.intent.action.ACTION_MEDIA_UNMOUNTED") ||intent.getAction().equals("android.intent.action.ACTION_MEDIA_BAD_REMOVAL")) { imagepath = android.os.Environment.getDataDirectory();//你的本地路径 } } }; //在IntentFilter中选择你要监听的行为 IntentFilter intentFilter = new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 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.addDataScheme("file"); registerReceiver(broadcastRec, intentFilter);//注册监听函数 unregisterReceiver(broadcastRec);//使用完注销广播监听函数 |