Question

我想设置广播接收器在获取广播消息时运行某些功能，在本例中，我想捕获下载的管理器意图：

DownloadManager.ACTION_DOWNLOAD_COMPLETE

我查看了Android API示例，但没有找到方法来执行此操作

Answer 1

你应该先阅读：

http://developer.android.com/reference/android/content/BroadcastReceiver.html

然后看这里的例子。

Android示例： http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/appwidget/ExampleBroadcastReceiver.html

博文： http://www.androidcompetencycenter.com/2009/01/basics-of-android-part-ii-intent-receivers/

Answer 2

试试这个：

BroadcastReceiver receiver = new BroadcastReceiver() {

  @Override
  public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();
    if (action.equals(DownloadManager.ACTION_DOWNLOAD_COMPLETE) ){
      // do something
    }
  }

 registerReceiver(receiver, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));

Answer 3

您可以创建一个继承自BroadcastReceiver：

的类

public class MyDownloadCompleteReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
    }
}

然后在您的应用程序清单中注册此类，如下所示：

    <receiver android:enabled="true" 
                android:name="MyDownloadCompleteReceiver"
                android:label="downloadCompleteReceiver">
        <intent-filter>
            <action android:name="android.intent.action.DOWNLOAD_COMPLETE" />
        </intent-filter>
    </receiver>

如何设置广播接收器

3 个答案: