Question

我有一个问题，模拟器显示警告对话框“不幸的是，AppName已停止”感谢您的帮助。我想创建时钟小部件。

RmWidget.java

包lek.runningman.widget;

import java.text.SimpleDateFormat;
import java.util.Date;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.widget.RemoteViews;

public class RmWidget extends AppWidgetProvider {
  // Define the format string for the date

  private SimpleDateFormat formatter = new SimpleDateFormat(
      "hh:mm:ss\nEEEEEEEE\nd-MMM-yyyy");

  @Override
  public void onUpdate(Context context,AppWidgetManager appWidgetManager, int[] appWidgetIds) {

  // Retrieve and format the current date
  String now = formatter.format(new Date());

  // Change the text in the widget
  RemoteViews updateViews = new RemoteViews(
  context.getPackageName(), R.layout.main);
  updateViews.setTextViewText(R.id.text, now);
  appWidgetManager.updateAppWidget(appWidgetIds, updateViews);

  //super.onUpdate(context, appWidgetManager, appWidgetIds);
  onUpdate(context, appWidgetManager, appWidgetIds);

  }
}

widget.xml

android:minWidth="220dip"
android:minHeight="146dip"
android:updatePeriodMillis="1000"
android:initialLayout="@layout/main">
</appwidget-provider>

main.xml中

<TextView
    android:id="@+id/text"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center_horizontal"
    android:text="@string/app_name"
    android:textStyle="bold"

      android:typeface="monospace"
    android:textColor="@android:color/white"
    android:textSize="18sp" />

</LinearLayout>

RmWidget Manefest.xml

    <uses-sdk android:minSdkVersion="15" />

    <application
        android:icon="@drawable/icon"
        android:label="@string/app_name" >
        <receiver 
            android:name=".RmWidget"
            android:label="@string/widget_name" >

            <intent-filter>
                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
          </intent-filter>

            <meta-data android:name="android.appwidget.provider"
                     android:resource="@xml/widget" />

        </receiver>
    </application>

</manifest>

Answer 1

onUpdate的无限递归，在最后一行调用onUpdate。只需删除电话。

Answer 2

创建以下方法：

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.your_layout_filename);
 }

初始化布局非常重要，否则会产生一些问题。

不幸的是，Widget已经停止了android

2 个答案: