如何取消注册的BroadcastReceiver [英] How to unregister BroadcastReceiver

问题描述

我的应用程序使用一个BroadcastReceiver来获得这样的短信：

My app uses a BroadcastReceiver to get sms in this way:

SmsBR.java

public class SmsBR extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        Bundle bundle = intent.getExtras();
        if (bundle != null) {
            Object[] pdus = (Object[])bundle.get("pdus");
            final SmsMessage[] messages = new SmsMessage[pdus.length];

            for (int i = 0; i < pdus.length; i++) {
                messages[i] = SmsMessage.createFromPdu((byte[])pdus[i]);
            }
            if (messages.length > 0)
                //doSomething();
            }
        }
    }
}

的Manifest.xml

<application android:icon="@drawable/icon" android:label="@string/app_name">
    <activity android:name=".Activity" android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter> 
    </activity>

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

在这样SmsBR始终打开。我想将其注册服务启动时（的onCreate（）），并注销其服务时被销毁（的onDestroy（））。我怎样才能做到这一点？

In this way SmsBR is always ON. I want to register it when a service starts (onCreate()) and unregister it when the service is destroyed (onDestroy()). How can I do this?

推荐答案

编辑：

对于活动：

为了从您的应用程序内注册的广播接收器，首先，删除＆LT;接收器GT;从AndroidManifest.xml文件标记。然后，调用 registerReceiver（BroadcastReceiver的接收器，IntentFilter的过滤器）在 onResume（）。使用 unregisterReceiver（BroadcastReceiver的接收器）在的onPause（）注销广播接收器。

In order to register your broadcast receiver from within your app, first, remove the <receiver> tag from your AndroidManifest.xml file. Then, call registerReceiver(BroadcastReceiver receiver, IntentFilter filter) in your onResume(). Use unregisterReceiver(BroadcastReceiver receiver) in your onPause() to unregister the Broadcast receiver.

对于服务：

从清单文件中删除接收器的标签。然后，您可以在的onCreate（）相同的方法注册你的广播接收器，并注销了的onDestroy（）。

Remove the receiver tag from the manifest file. You can then register your Broadcast receiver with the same method in the onCreate() and unregister in the onDestroy().

编辑：样品code：

public class MyActivity extends Activity
{
  private final BroadcastReceiver mybroadcast = new SmsBR();

  public void onResume()
  {
    IntentFilter filter = new IntentFilter();
    filter.addAction("android.provider.Telephony.SMS_RECEIVED");
    registerReceiver(mybroadcast, filter);  

  }

  public void onPause()
  {
    unregisterReceiver(mybroadcast);
  }
}

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