Android 中的可点击小部件

Android中的可点击小部件

java
public class MyWidget extends AppWidgetProvider {
    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        for (int appWidgetId : appWidgetIds) {
            RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_layout);
            // 设置小部件的点击事件
            Intent intent = new Intent(context, MainActivity.class);
            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
            views.setOnClickPendingIntent(R.id.widget_button, pendingIntent);
            appWidgetManager.updateAppWidget(appWidgetId, views);
        }
    }
}

xml
    android:id="@+id/widget_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
            android:id="@+id/widget_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Click Me" />

xml
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    
            android:id="@+id/widgetContainer"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" />

java
public class MainActivity extends AppCompatActivity {
    private LinearLayout widgetContainer;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        widgetContainer = findViewById(R.id.widgetContainer);
        // 将小部件添加到widgetContainer中
        MyWidget myWidget = new MyWidget();
        myWidget.onUpdate(this, AppWidgetManager.getInstance(this), new int[]{0});
        // 更新widgetContainer的布局
        widgetContainer.addView(myWidget);
    }
}