Android小部件的按钮单击事件

4 回答

• 10

  以下是一个应该有用的示例：

  package com.automatic.widget;
  
  import android.app.PendingIntent;
  import android.appwidget.AppWidgetManager;
  import android.appwidget.AppWidgetProvider;
  import android.content.ComponentName;
  import android.content.Context;
  import android.content.Intent;
  import android.widget.RemoteViews;
  
  public class Widget extends AppWidgetProvider {
  
      private static final String SYNC_CLICKED    = "automaticWidgetSyncButtonClick";
  
      @Override
      public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
          RemoteViews remoteViews;
          ComponentName watchWidget;
  
          remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_layout);
          watchWidget = new ComponentName(context, Widget.class);
  
          remoteViews.setOnClickPendingIntent(R.id.sync_button, getPendingSelfIntent(context, SYNC_CLICKED));
          appWidgetManager.updateAppWidget(watchWidget, remoteViews);
      }
  
      @Override
      public void onReceive(Context context, Intent intent) {
          // TODO Auto-generated method stub
          super.onReceive(context, intent);
  
          if (SYNC_CLICKED.equals(intent.getAction())) {
  
              AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
  
              RemoteViews remoteViews;
              ComponentName watchWidget;
  
              remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_layout);
              watchWidget = new ComponentName(context, Widget.class);
  
              remoteViews.setTextViewText(R.id.sync_button, "TESTING");
  
              appWidgetManager.updateAppWidget(watchWidget, remoteViews);
  
          }
      }
  
      protected PendingIntent getPendingSelfIntent(Context context, String action) {
          Intent intent = new Intent(context, getClass());
          intent.setAction(action);
          return PendingIntent.getBroadcast(context, 0, intent, 0);
      }
  }
  

  回复于 2024-04-29T10:47:01+08:00
• 63

  我发现了如何做到这一点 .
  在> <receiver><intent-filter> 标记中的 AndroidManifest.xml 文件中添加操作：

  <action android:name="MY_PACKAGE_NAME.WIDGET_BUTTON" />
  

  在提供程序中添加与操作名称匹配的常量：

  public static String WIDGET_BUTTON = "MY_PACKAGE_NAME.WIDGET_BUTTON";
  

  在 onUpdate() 方法中添加与操作匹配的待处理意图：

  Intent intent = new Intent(WIDGET_BUTTON);
  PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
  views.setOnClickPendingIntent(R.id.MY_BUTTON_ID, pendingIntent );
  

  最后，在onRecieve（）方法中，检查操作名称：

  if (WIDGET_BUTTON.equals(intent.getAction())) {
  //your code here
  
      }
  

  回复于 2024-04-29T10:47:01+08:00
• 42

  protected PendingIntent getPendingSelfIntent(Context context, String action) {
      Intent intent = new Intent(context, getClass());
      intent.setAction(action);
      return PendingIntent.getBroadcast(context, 0, intent, 0);
  }
  
  views.setOnClickPendingIntent(R.id.Timm, getPendingSelfIntent(context,
                                "ham"));
  

  也喜欢网址：

  How to correctly handle click events on Widget

  如果您以不同的方式解决它，请提供此答案

  回复于 2024-04-29T10:47:01+08:00
• 10

  这是另一个答案，具有以下好处：

  • 它处理所有App Widget实例（用户可能在屏幕上有各种配置/大小的窗口小部件的多个实例） . 所有实例的编码都是官方文档规定的内容 . 请参阅Guide > App Widgets > Using the AppWidgetProvider Class，向下滚动到"ExampleAppWidgetProvider"的代码示例 .

  • onReceive 中的主力代码实际上调用了 onUpdate （因此减少了代码重复） .

  • onUpdate(Context context) 中的代码是通用的，因此可以将其放入任何AppWidgetProvider子类中 .

  代码：

  public class MyWidget extends AppWidgetProvider {
  
      private static final String ACTION_UPDATE_CLICK = 
                "com.example.myapp.action.UPDATE_CLICK";
  
      private static int mCount = 0;
  
      private static String getMessage() {
          return String.valueOf(mCount++);
      }
  
      private PendingIntent getPendingSelfIntent(Context context, String action) {
          // An explicit intent directed at the current class (the "self").
          Intent intent = new Intent(context, getClass());
          intent.setAction(action);
          return PendingIntent.getBroadcast(context, 0, intent, 0);
      }
  
      @Override
      public void onUpdate(Context context, AppWidgetManager appWidgetManager,
                           int[] appWidgetIds) {
          super.onUpdate(context, appWidgetManager, appWidgetIds);
  
          String message = getMessage();
  
          // Loop for every App Widget instance that belongs to this provider.
          // Noting, that is, a user might have multiple instances of the same
          // widget on
          // their home screen.
          for (int appWidgetID : appWidgetIds) {
              RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
                                                        R.layout.my_widget);
  
              remoteViews.setTextViewText(R.id.textView_output, message);
              remoteViews.setOnClickPendingIntent(R.id.button_update,
                                                  getPendingSelfIntent(context,
                                                             ACTION_UPDATE_CLICK)
              );
  
              appWidgetManager.updateAppWidget(appWidgetID, remoteViews);
  
          }
      }
  
      /**
       * A general technique for calling the onUpdate method,
       * requiring only the context parameter.
       *
       * @author John Bentley, based on Android-er code.
       * @see <a href="http://android-er.blogspot.com
       * .au/2010/10/update-widget-in-onreceive-method.html">
       * Android-er > 2010-10-19 > Update Widget in onReceive() method</a>
       */
      private void onUpdate(Context context) {
          AppWidgetManager appWidgetManager = AppWidgetManager.getInstance
                  (context);
  
          // Uses getClass().getName() rather than MyWidget.class.getName() for
          // portability into any App Widget Provider Class
          ComponentName thisAppWidgetComponentName =
                  new ComponentName(context.getPackageName(),getClass().getName()
          );
          int[] appWidgetIds = appWidgetManager.getAppWidgetIds(
                  thisAppWidgetComponentName);
          onUpdate(context, appWidgetManager, appWidgetIds);
      }
  
      @Override
      public void onReceive(Context context, Intent intent) {
          super.onReceive(context, intent);
  
          if (ACTION_UPDATE_CLICK.equals(intent.getAction())) {
              onUpdate(context);
          }
      }
  
  }
  

  小部件看起来像这样

  

  这 Build 在@Kels，@ SharonHaimPour和@ Erti-ChrisEelmaa的 getPendingSelfIntent 作品之上 .

  它还 Build 在Android-er > 2010-10-19 > Update Widget in onReceive() method（不是我）的基础上，它演示了如何在App Widget实例的基础上从onReceive调用onUpdate . 我将该代码设为通用并将其包装在 callOnUpdate 中 .

  回复于 2024-04-29T10:47:01+08:00