android監聽SD卡範例程式碼

package org.piaozhiye.demo;import android.app.Activity;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.os.Bundle;import android.widget.Toast;public class SDcardLinsener extends Activity {SDcardLinsenerReceiver receiver;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);IntentFilter filter = new IntentFilter();filter.addAction("org.piaozhiye.demo.sdcardLinsener.receiver");filter.addAction(Intent.ACTION_MEDIA_BAD_REMOVAL);filter.addAction(Intent.ACTION_MEDIA_MOUNTED);filter.addAction(Intent.ACTION_MEDIA_REMOVED);filter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);filter.addDataScheme("file");receiver = new SDcardLinsenerReceiver();registerReceiver(receiver, filter);}@Overrideprotected void onDestroy() {unregisterReceiver(receiver);super.onDestroy();}class SDcardLinsenerReceiver extends BroadcastReceiver {@Overridepublic void onReceive(Context context, Intent intent) {if (intent.getAction().equals("android.intent.action.MEDIA_MOUNTED")){Toast.makeText(getApplicationContext(),"android.intent.action.MEDIA_MOUNTED",Toast.LENGTH_SHORT).show();} else if (intent.getAction().equals("android.intent.action.MEDIA_REMOVED")) {Toast.makeText(getApplicationContext(),"android.intent.action.MEDIA_REMOVED",Toast.LENGTH_SHORT).show();} else if (intent.getAction().equals("android.intent.action.MEDIA_UNMOUNTED")) {Toast.makeText(getApplicationContext(),"android.intent.action.MEDIA_UNMOUNTED",Toast.LENGTH_SHORT).show();} else if (intent.getAction().equals("android.intent.action.MEDIA_BAD_REMOVAL")) {Toast.makeText(getApplicationContext(),"android.intent.action.MEDIA_BAD_REMOVAL",Toast.LENGTH_SHORT).show();}}}}