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Android JAVA小部件不显示在小部件列表中_Java_Android_Widget - Fatal编程技术网

Android JAVA小部件不显示在小部件列表中

Android JAVA小部件不显示在小部件列表中,java,android,widget,Java,Android,Widget,我一直在尝试创建一个基本的应用程序小部件,但无法将其显示在小部件列表中 代码如下: Widget_layout.xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/layout" android:layout_width="match_parent" android

我一直在尝试创建一个基本的应用程序小部件,但无法将其显示在小部件列表中

代码如下:

Widget_layout.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="8dip"
>

<TextView
    android:id="@+id/update"
    style="@android:style/TextAppearance.Medium"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center"
    android:resizeMode="horizontal|vertical"
    android:gravity="center_horizontal|center_vertical"
    android:layout_margin="4dip"
    android:text="@string/click_to_configure" >
</TextView>
</LinearLayout> 

Widget_info.xml:

<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
android:minHeight="72dp"
android:minWidth="146dp"
android:updatePeriodMillis="1000" 
android:initialLayout="@layout/widget_layout"
android:resizeMode="horizontal|vertical"
android:initialKeyguardLayout="@layout/widget_layout"
android:widgetCategory="keyguard|home_screen"
android:configure="com.promethylhosting.countdowntowidget.SettingsActivity"
/>

舱单:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.promethylhosting.countdowntowidget"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="15"
    android:targetSdkVersion="17" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >


 <activity 
     android:name=".SettingsActivity"
     android:icon="@drawable/ic_launcher"
     android:label="Countdown to... Widget"> 
        <intent-filter> 
            <action android:name=".ACTION_WIDGET_CONFIGURE"/>

        </intent-filter> 

     <intent-filter> 
            <action android:name="android.intent.action.MAIN" /> 
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
         <!--  mulitple actions must have multiple action filters 1:1 ratio between       action/filter --> 
    </activity> 

    <reciever
        android:name="CountdownToWidgetProvider"
        android:icon="@drawable/ic_launcher"
        android:label="Countdown To 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" />
    </reciever>
</application>
</manifest>

我一直在谷歌搜索,没有找到任何解决这个问题的方法。所以我在这里发帖

提前感谢您阅读本文和建议


编辑:还有其他建议吗?

在您的主要活动中尝试此方法,在4.0列表中显示小部件时总是出现问题

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
       sendBroadcast(new Intent(Intent.ACTION_MAIN)
       .addCategory(Intent.CATEGORY_HOME));
    setContentView(R.layout.main);



}

另请参考一下主/启动器中当前的代码:try{sendBroadcast(newintent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_HOME))}catch(Exception e){Log.wtf(Log_标记,“试图激活小部件,我得到了一些东西:+e.getMessage())}