对我来说,我有一个带有按钮的按钮小部件,当我单击它时,它只是假设启动一个 helloworld 活动。我试过在网上关注很多帖子,包括这个,但问题仍然存在。我按下按钮,没有任何反应。我正在开发 2.3 版的 android。有人可以指出我做错了什么吗?
我的小部件:
public class IconWidgetProvider extends AppWidgetProvider {
@Override
public void onUpdate(final Context context, final AppWidgetManager appWidgetManager, final int[] appWidgetIds) {
final int N = appWidgetIds.length;
for (int i=0; i<N; i++) {
final Intent intent = new Intent(Intent.ACTION_MAIN, null);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
// first param is app package name, second is package.class of the main activity
final ComponentName cn = new ComponentName("com.followup","com.followup.FollowUpActivity");
intent.setComponent(cn);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
final PendingIntent myPI = PendingIntent.getActivity(context, 0, intent, 0);
final RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.icon_widget_layout);
views.setOnClickPendingIntent(R.id.image_in_widget, myPI);
final AppWidgetManager mgr = AppWidgetManager.getInstance(context); mgr.updateAppWidget(cn, views);
}
}
}
主屏幕图标信息.xml
<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
android:minWidth="146dip"
android:minHeight="72dip"
android:updatePeriodMillis="0"
android:initialLayout="@layout/icon_widget_layout" >
</appwidget-provider>
icon_widget_layout.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal">
<Button android:name="@+id/image_in_widget"
android:contentDescription="@string/iconDescription"
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_weight=".50"
android:clickable="true"
/>
</LinearLayout>
主菜:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.followup"
android:versionCode="1"
android:versionName="1.0" >
.
.
.
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
.
.
.
<!-- Home icon widget -->
<receiver android:name="IconWidgetProvider"
android:label="@string/app_name"
android:icon="@drawable/ic_launcher">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/homescreeniconinfo" />
</receiver>
<activity
android:name=".FollowUpActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>