Widget:无异常，widget未打开
Widget:无异常，widget未打开
提问于 2013-02-01 05:34:06
我的小部件在加载小部件时出现问题，并且无法正常工作。
这是我在logcat输出中收到的输出，但我不确定它是什么意思。
W/de.vogella.android.widget.example(1613): onUpdate method called
W/AppWidgetHostView(412): updateAppWidget couldn't find any view, using error view
W/AppWidgetHostView(412): at android.appwidget.AppWidgetHostView.updateAppWidget(AppWidgetHostView.java:394)
W/AppWidgetHostView(412): at com.android.launcher2.LauncherAppWidgetHostView.updateAppWidget(LauncherAppWidgetHostView.java:54)
W/AppWidgetHostView(412): at android.appwidget.AppWidgetHost.updateAppWidgetView(AppWidgetHost.java:376)
W/AppWidgetHostView(412): at android.appwidget.AppWidgetHost$UpdateHandler.handleMessage(AppWidgetHost.java:101)
W/de.vogella.android.widget.example(1664): onUpdate method called
W/de.vogella.android.widget.example(1664): onUpdate method called
W/de.vogella.android.widget.example(1664): onUpdate method called
W/de.vogella.android.widget.example(1705): onUpdate method called
W/de.vogella.android.widget.example(1744): onUpdate method called
W/AppWidgetHostView(412): updateAppWidget couldn't find any view, using error view
W/AppWidgetHostView(412): at android.appwidget.AppWidgetHostView.updateAppWidget(AppWidgetHostView.java:394)
W/AppWidgetHostView(412): at com.android.launcher2.LauncherAppWidgetHostView.updateAppWidget(LauncherAppWidgetHostView.java:54)
W/AppWidgetHostView(412): at android.appwidget.AppWidgetHost.updateAppWidgetView(AppWidgetHost.java:376)
W/AppWidgetHostView(412): at android.appwidget.AppWidgetHost$UpdateHandler.handleMessage(AppWidgetHost.java:101)
W/de.vogella.android.widget.example(1744): onUpdate method called
W/AppWidgetHostView(412): updateAppWidget couldn't find any view, using error view
W/AppWidgetHostView(412): at android.appwidget.AppWidgetHostView.updateAppWidget(AppWidgetHostView.java:394)
W/AppWidgetHostView(412): at com.android.launcher2.LauncherAppWidgetHostView.updateAppWidget(LauncherAppWidgetHostView.java:54)
W/AppWidgetHostView(412): at android.appwidget.AppWidgetHost.updateAppWidgetView(AppWidgetHost.java:376)
W/AppWidgetHostView(412): at android.appwidget.AppWidgetHost$UpdateHandler.handleMessage(AppWidgetHost.java:101)使用服务触发OnUpdate()方法。我已经发布了以下服务内容：
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
Log.w(LOG, "onUpdate method called");
// Get all ids
ComponentName thisWidget = new ComponentName(context,
MyWidgetProvider.class);
int[] allWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);
// Build the intent to call the service
Intent intent = new Intent(context.getApplicationContext(),
UpdateWidgetService.class);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, allWidgetIds);
// Update the widgets via the service
context.startService(intent);
}我认为问题出在布局上。如果我想把它改为字幕文本，那么我就会遇到这个问题。布局是：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_margin="8dip"
android:background="@drawable/myshape" >
<TextView
android:id="@+id/update"
android:layout_width="200dp"
android:duplicateParentState="true"
android:ellipsize="marquee"
android:focusable="true"
android:focusableInTouchMode="true"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:singleLine="true"
android:text="Loading... More text to see if it spans or not and want more" >
<requestFocus
android:duplicateParentState="true"
android:focusable="true"
android:focusableInTouchMode="true" />
</TextView>
</LinearLayout>错误消息是什么意思?为什么没有加载我的小部件？
回答 1
Stack Overflow用户
回答已采纳
发布于 2013-02-01 05:58:23
我认为这可能对其他人有用。
通常，为了让字幕运行，在活动中，我们设置TextView.setSelected(true)。在小部件中，这应该在xml文件中使用标记requestfocus来完成。为了以防万一，我已经发布了工作的xml文件。
<TextView
android:id="@+id/update"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:focusable="true"
android:focusableInTouchMode="true"
android:freezesText="true"
android:marqueeRepeatLimit="marquee_forever"
android:paddingLeft="15dip"
android:paddingRight="15dip"
android:scrollHorizontally="true"
android:singleLine="true" >
<requestFocus
android:duplicateParentState="true"
android:focusable="true"
android:focusableInTouchMode="true" />
</TextView>干杯。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/14635555
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