Android(安卓)扫描SDCard上的音乐文件以及监听扫描事件

From:http://blog.csdn.net/AMinfo/article/details/7875358

广播接收机代码：

[java] view plain copy print ?

publicclassScanSdReceiverextendsBroadcastReceiver
{
@Override
publicvoidonReceive(Contextcontext,Intentintent)
{
Stringaction=intent.getAction();
if(Intent.ACTION_MEDIA_SCANNER_STARTED.equals(action))
{
//开始扫描，把你的代码放这里
}
elseif(Intent.ACTION_MEDIA_SCANNER_FINISHED.equals(action))
{
//扫描结束，把你的代码放这里
}
}
}

public class ScanSdReceiver extends BroadcastReceiver    {        @Override          public void onReceive(Context context, Intent intent)        {        String action = intent.getAction();            if (Intent.ACTION_MEDIA_SCANNER_STARTED.equals(action))            {            //开始扫描，把你的代码放这里            }            else if (Intent.ACTION_MEDIA_SCANNER_FINISHED.equals(action))            {            //扫描结束，把你的代码放这里            }        }    }

注册广播接收机，监听SDcard扫描事件

[java] view plain copy print ?

IntentFilterintentfilter=newIntentFilter(Intent.ACTION_MEDIA_SCANNER_STARTED);
intentfilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);
intentfilter.addDataScheme("file");
ScanSdReceiverscanSdReceiver=newScanSdReceiver();
registerReceiver(scanSdReceiver,intentfilter);

IntentFilter intentfilter = new IntentFilter(Intent.ACTION_MEDIA_SCANNER_STARTED);intentfilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);  intentfilter.addDataScheme("file");  ScanSdReceiver scanSdReceiver = new ScanSdReceiver();registerReceiver(scanSdReceiver, intentfilter);

扫描SDCard

[java] view plain copy print ?

sendBroadcast(newIntent(Intent.ACTION_MEDIA_MOUNTED,
Uri.parse("file://"+Environment.getExternalStorageDirectory().getAbsolutePath())));

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