正文

android广播（内部类）使用

IP云
IP云V管理员/6 阅读
12/02
提示：扫一扫查出行
【扫一扫了解最新限行尾号】
复制提示

1.广播定义在一个单独的文件中

源码：

  1. public class MessageReceiver extends BroadcastReceiver{
  2. @Override
  3. public void onReceive(Context context, Intent intent) {
  4. // TODO Auto-generated method stub
  5. if(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")){
  6. }
  7. }
  8. } 
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：

  1. <receiver android:name=".MessageReceiver">
  2. <intent-filter>
  3. <action android:name="android.provider.Telephony.SMS_RECEIVED"/>
  4. </intent-filter>
  5. </receiver> 
<receiver android:name=".MessageReceiver">

            <intent-filter>

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

            </intent-filter>

</receiver>

使用代码注册：

  1. //生成广播处理
  2. MessageReceiver  smsBroadCastReceiver = new MessageReceiver ();
  3. //实例化过滤器并设置要过滤的广播
  4. IntentFilter intentFilter = new IntentFilter();
  5. intentFilter.addAction("android.provider.Telephony.SMS_RECEIVED");
  6. //注册广播
  7. 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：

  1. unregisterReceiver(smsBroadCastReceiver); 
unregisterReceiver(smsBroadCastReceiver);

2.广播是内部类

  1. public class SettingForSMS extends PreferenceActivity{
  2. @Override
  3. public void onCreate(Bundle savedInstanceState) {
  4. super.onCreate(savedInstanceState);
  5. addPreferencesFromResource(R.layout.sms_setting);
  6. }
  7. public static class MessageChangeReceiver extends BroadcastReceiver {
  8. @Override
  9. public void onReceive(Context context, Intent intent) {
  10. // TODO Auto-generated method stub
  11. Log.i(tag, "onReceive");
  12. }
  13. }
  14. } 
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：

  1. <receiver android:name=".SettingForSMS$MessageChangeReceiver">
  2. <intent-filter>
  3. <action android:name="com.ginwave.message_changed"/>
  4. </intent-filter>
  5. </receiver> 
<receiver android:name=".SettingForSMS$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。

  1. smsBroadCastReceiver = new MessageChangeReceiver ();
  2. //实例化过滤器并设置要过滤的广播
  3. IntentFilter intentFilter = new IntentFilter();
  4. intentFilter.addAction("com.ginwave.message_changed");
  5. //注册广播
  6. 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);
  1. unregisterReceiver(smsBroadCastReceiver); 
unregisterReceiver(smsBroadCastReceiver);

希望以后使用的时候方便点～～

相关阅读

目录[+]