Android :: Extending MapActivity => classNotFound Exception

概述我想创建一个MapView,但扩展MapActivity会抛出一个classNotFoundException：/AndroidRuntime(374):atandroid.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585)E/AndroidRuntime(374):atandroid.app.ActivityThread.handleLaunc

我想创建一个MapVIEw,但扩展MapActivity会抛出一个classNotFoundException：

   /AndroIDRuntime(  374):        at androID.app.ActivityThread.performlaunchActivity(ActivityThread.java:2585)    E/AndroIDRuntime(  374):        at androID.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)    E/AndroIDRuntime(  374):        at androID.app.ActivityThread.access00(ActivityThread.java:125)    E/AndroIDRuntime(  374):        at androID.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)    E/AndroIDRuntime(  374):        at androID.os.Handler.dispatchMessage(Handler.java:99)    E/AndroIDRuntime(  374):        at androID.os.Looper.loop(Looper.java:123)    E/AndroIDRuntime(  374):        at androID.app.ActivityThread.main(ActivityThread.java:4627)    E/AndroIDRuntime(  374):        at java.lang.reflect.Method.invokeNative(Native Method)    E/AndroIDRuntime(  374):        at java.lang.reflect.Method.invoke(Method.java:521)    E/AndroIDRuntime(  374):        at com.androID.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)    E/AndroIDRuntime(  374):        at com.androID.internal.os.ZygoteInit.main(ZygoteInit.java:626)    E/AndroIDRuntime(  374):        at dalvik.system.NativeStart.main(Native Method)    E/AndroIDRuntime(  374): Caused by: java.lang.classNotFoundException: com.androIDcourse.phonemapper.vIEw.MapShowActivity in loader dalvik.system.PathClassLoader[/system/framework/com.Google.androID.maps.jar:/data/app/com.androIDcourse.phonemapper-2.apk]    E/AndroIDRuntime(  374):        at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)    E/AndroIDRuntime(  374):        at java.lang.classLoader.loadClass(ClassLoader.java:573)    E/AndroIDRuntime(  374):        at java.lang.classLoader.loadClass(ClassLoader.java:532)    E/AndroIDRuntime(  374):        at androID.app.Instrumentation.newActivity(Instrumentation.java:1021)    E/AndroIDRuntime(  374):        at androID.app.ActivityThread.performlaunchActivity(ActivityThread.java:2577)

我有一个Google Maps API密钥,我将项目设置为Google Api,我使用的是AndroID Google Api AVD(模拟器),我确实在AndroIDManifest.xml中包含了该标记.

<?xml version="1.0" enCoding="utf-8"?><manifest xmlns:androID="http://schemas.androID.com/apk/res/androID"    package="com.androIDcourse.phonemapper" androID:versionCode="1"    androID:versionname="1.0">    <uses-sdk androID:minSdkVersion="8" />    <uses-permission androID:name="androID.permission.INTERNET" />    <uses-permission androID:name="androID.permission.ACCESS_COARSE_LOCATION"></uses-permission>    <uses-permission androID:name="androID.permission.ACCESS_FINE_LOCATION"></uses-permission>    <application androID:icon="@drawable/icon" androID:label="@string/app_name">  <uses-library androID:name="com.Google.androID.maps" />

……………..

        <activity androID:name=".vIEw.WelcomeActivity" androID:label="@string/app_name">            <intent-filter>                <action androID:name="androID.intent.action.MAIN" />                <category androID:name="androID.intent.category.LAUNCHER" />            </intent-filter>        </activity><relativeLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"    androID:ID="@+ID/mainlayout"    androID:orIEntation="vertical"    androID:layout_wIDth="fill_parent"    androID:layout_height="fill_parent" >    <com.Google.androID.maps.MapVIEw        androID:ID="@+ID/mapvIEw"        androID:layout_wIDth="fill_parent"        androID:layout_height="fill_parent"        androID:clickable="true"        androID:APIKey="API_key_is_here_just_wont_show_it_to_everybody"    /></relativeLayout>

解决方法:

尝试将包设置为“com.androIDcourse.phonemapper.vIEw”：

<manifest xmlns:androID="http://schemas.androID.com/apk/res/androID"package="com.androIDcourse.phonemapper.vIEw" androID:versionCode="1"androID:versionname="1.0">

然后引用它：

<activity androID:name=".WelcomeActivity"

总结

以上是内存溢出为你收集整理的Android :: Extending MapActivity => classNotFound Exception全部内容，希望文章能够帮你解决Android :: Extending MapActivity => classNotFound Exception所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。