package com.appointext.widget;
import com.bmsce.appointext.R;
//import com.appointext.frontend.*;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.content.Intent;
import android.widget.RemoteViews;
public class Widget extends AppWidgetProvider {
//DateFormat df = new SimpleDateFormat("hh:mm:ss");
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
final int N = appWidgetIds.length;
// Perform this loop procedure for each App Widget that belongs to this
// provider
for (int i = 0; i < N; i++) {
int appWidgetId = appWidgetIds[i];
// Create an Intent to launch ExampleActivity
Intent intent = new Intent(context, com.appointext.frontend.AppoinTextActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
// Get the layout for the App Widget and attach an on-click listener
// to the button
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.activity_main);
views.setOnClickPendingIntent(R.id.button, pendingIntent);
// To update a label
//views.setTextViewText(R.id.widget1label, "AppoinText");
// Tell the AppWidgetManager to perform an update on the current app
// widget
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
}
这是我的主要java类,我试图调用前端的appointextactivity类。主屏幕中的小部件说&#34;无法加载小部件&#34;。有人请告诉我我的错误是什么。
答案 0 :(得分:0)
添加小部件时不会调用onUpdate(), 您需要覆盖onUpdate()方法
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
同时确保您的清单如下
<receiver android:name="com.example.app.Widget" >
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/widget_info" />
</receiver>