Question

我正在使用eclipse Export Signed Application Package.生成烧结的apk生成签名的apk后我已将其安装到我的设备中当时我unfortunately stopped exception因ClassNotFoundException.而发生这种情况只发生此异常签名apk。正常安装工作正常。

我的错误日志

05-14 18:48:39.561: E/AndroidRuntime(15982): FATAL EXCEPTION: main
05-14 18:48:39.561: E/AndroidRuntime(15982): java.lang.RuntimeException: Unable to instantiate application com.yyy.android.xxx.MyApplication: java.lang.ClassNotFoundException: com.yyy.android.xxx.MyApplication
05-14 18:48:39.561: E/AndroidRuntime(15982):    at android.app.LoadedApk.makeApplication(LoadedApk.java:482)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:3982)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at android.app.ActivityThread.access$1300(ActivityThread.java:127)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1212)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at android.os.Handler.dispatchMessage(Handler.java:99)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at android.os.Looper.loop(Looper.java:137)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at android.app.ActivityThread.main(ActivityThread.java:4503)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at java.lang.reflect.Method.invokeNative(Native Method)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at java.lang.reflect.Method.invoke(Method.java:511)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at dalvik.system.NativeStart.main(Native Method)
05-14 18:48:39.561: E/AndroidRuntime(15982): Caused by: java.lang.ClassNotFoundException: com.yyy.android.xxx.MyApplication
05-14 18:48:39.561: E/AndroidRuntime(15982):    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at android.app.Instrumentation.newApplication(Instrumentation.java:942)
05-14 18:48:39.561: E/AndroidRuntime(15982):    at android.app.LoadedApk.makeApplication(LoadedApk.java:477)

我的宣言：

<application
        android:name=".MyApplication"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:largeHeap="true"
        android:logo="@drawable/title_logo"
        android:theme="@style/Theme.App" >

        <!-- Tablet Starts -->

        <activity
            android:name=".ui.StartActivity"
            android:configChanges="orientation|keyboardHidden|screenSize"
            android:label="@string/app_name"
            android:screenOrientation="landscape"
            android:theme="@style/Theme.App" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
</application>

我在Android Private Libraries标记下选中了Android Dependencies和Order and Exports复选框。我使用的proguard.cfg包含-keep public class * extends android.app.Application。我取消选中Run full check when exporting下的Lint Error Checking复选框。请帮我签名apk没有任何问题。谢谢。

Answer 1

确保你的proguard文件中有这个 -keep public class * extends android.app.Application ，如下所示：

 -keep public class * extends android.app.Activity
 -keep public class * extends android.app.Application
 -keep public class * extends android.app.Service
 -keep public class * extends android.content.BroadcastReceiver
 -keep public class * extends android.content.ContentProvider
 -keep public class * extends android.app.backup.BackupAgentHelper
 -keep public class * extends android.preference.Preference
 -keep public class * extends android.support.v4.app.Fragment
 -keep public class * extends android.widget.BaseAdapter
 -keep class com.android.vending.billing.**

并确保 proguard文件确实正在使用。

Answer 2

禁用minifyEnabled后我遇到了同样的问题，修正了问题。如果问题只存在于签名的apk上。检查module.gradle上的buildtypes发布。

GLint bufSize = 0;
glGetBufferParamteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, bufSize);

Singed apk在android中提供ClassNotFoundException

2 个答案: