android廣播（內部類）使用

1.廣播定義在一個單獨的檔案中

源碼：

public class MessageReceiver extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {// TODO Auto-generated method stubif(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")){}}}

在Manifest中註冊：

<receiver android:name=".MessageReceiver">            <intent-filter>                <action android:name="android.provider.Telephony.SMS_RECEIVED"/>            </intent-filter></receiver>

使用代碼註冊：

//產生廣播處理  MessageReceiver  smsBroadCastReceiver = new MessageReceiver ();  //執行個體化過濾器並設定要過濾的廣播  IntentFilter intentFilter = new IntentFilter();  intentFilter.addAction("android.provider.Telephony.SMS_RECEIVED");    //註冊廣播  this.registerReceiver(smsBroadCastReceiver, intentFilter);  

登出廣播：

unregisterReceiver(smsBroadCastReceiver);

2.廣播是內部類

public class SettingForSMS extends PreferenceActivity{@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);addPreferencesFromResource(R.layout.sms_setting);}public static class MessageChangeReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        // TODO Auto-generated method stub        Log.i(tag, "onReceive");    }}}

注意已定義流程中必須聲明為static，不然會找不到

在Manifest中註冊：

<receiver android:name=".SettingForSMS$MessageChangeReceiver">            <intent-filter>                <action android:name="com.ginwave.message_changed"/>            </intent-filter></receiver>

注意內部類使用$符號而不是.，使用.會出現類找不到異常

在程式內註冊，register是放在onCreate中，unregister是放在onDestroy中。

smsBroadCastReceiver = new MessageChangeReceiver ();  //執行個體化過濾器並設定要過濾的廣播  IntentFilter intentFilter = new IntentFilter();  intentFilter.addAction("com.ginwave.message_changed");    //註冊廣播  this.registerReceiver(smsBroadCastReceiver, intentFilter); 

unregisterReceiver(smsBroadCastReceiver);

希望以後使用的時候方便點～～