android广播（内部类）使用

1.广播定义在一个单独的文件中

源码：

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public class MessageReceiver extends BroadcastReceiver{

@Override

public void onReceive(Context context, Intent intent) {

// TODO Auto-generated method stub

if(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")){

}

}

}

public class MessageReceiver extends BroadcastReceiver{

@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
if(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")){

}
}
}

在Manifest中注册：

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<receiver android:name=".MessageReceiver">

<intent-filter>

<action android:name="android.provider.Telephony.SMS_RECEIVED"/>

</intent-filter>

</receiver>

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

使用代码注册：

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//生成广播处理

MessageReceiver smsBroadCastReceiver = new MessageReceiver ();

//实例化过滤器并设置要过滤的广播

IntentFilter intentFilter = new IntentFilter();

intentFilter.addAction("android.provider.Telephony.SMS_RECEIVED");

//注册广播

this.registerReceiver(smsBroadCastReceiver, intentFilter);

//生成广播处理
MessageReceiver  smsBroadCastReceiver = new MessageReceiver ();
//实例化过滤器并设置要过滤的广播
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("android.provider.Telephony.SMS_RECEIVED");

//注册广播
this.registerReceiver(smsBroadCastReceiver, intentFilter);

注销广播：

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unregisterReceiver(smsBroadCastReceiver);

unregisterReceiver(smsBroadCastReceiver);

2.广播是内部类

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public class SettingForSMS extends PreferenceActivity{

@Override

public 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");

}

}

}

public class SettingForSMS extends PreferenceActivity{

@Override
public 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");
}
}
}

注意定义的过程中必须声明为static，不然会找不到

在Manifest中注册：

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<receiver android:name=".SettingForSMS$MessageChangeReceiver">

<intent-filter>

<action android:name="com.ginwave.message_changed"/>

</intent-filter>

</receiver>

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

注意内部类使用$符号而不是.，使用.会出现类找不到异常

在程序内注册，register是放在onCreate中，unregister是放在onDestroy中。

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smsBroadCastReceiver = new MessageChangeReceiver ();

//实例化过滤器并设置要过滤的广播

IntentFilter intentFilter = new IntentFilter();

intentFilter.addAction("com.ginwave.message_changed");

//注册广播

this.registerReceiver(smsBroadCastReceiver, intentFilter);

smsBroadCastReceiver = new MessageChangeReceiver ();
//实例化过滤器并设置要过滤的广播
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("com.ginwave.message_changed");

//注册广播
this.registerReceiver(smsBroadCastReceiver, intentFilter);

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unregisterReceiver(smsBroadCastReceiver);

unregisterReceiver(smsBroadCastReceiver);

希望以后使用的时候方便点～～