MultiDex應用程序：啟用庫時，java.lang.ClassNotFoundException

Question

我正在使用Android Studio 3.1.2和Gradle 3.1.2 ＆ minSdkVersion 19和compileSdkVersion 26並在運行Nougat模擬器和運行Oreo智能手機上進行測試，並在啟動應用程序后得到此異常

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.***.***.****, PID: 16366
    java.lang.RuntimeException: Unable to instantiate application com.***.***.***.view.application.MyApplicationClass: java.lang.ClassNotFoundException: Didn't find class "com.***.***.***.view.application.MyApplicationClass" on path: DexPathList[[zip file "/data/app/com.***.***.***-2/base.apk"],nativeLibraryDirectories=[/data/app/com.***.***.***-2/lib/x86, /data/app/com.***.***.***-2/base.apk!/lib/x86, /system/lib, /vendor/lib]]
        at android.app.LoadedApk.makeApplication(LoadedApk.java:802)
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5377)
        at android.app.ActivityThread.-wrap2(ActivityThread.java)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1545)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6119)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "com.***.***.***.view.application.MyApplicationClass" on path: DexPathList[[zip file "/data/app/com.***.***.***-2/base.apk"],nativeLibraryDirectories=[/data/app/com.***.***.***-2/lib/x86, /data/app/com.***.***.***-2/base.apk!/lib/x86, /system/lib, /vendor/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at android.app.Instrumentation.newApplication(Instrumentation.java:992)
        at android.app.LoadedApk.makeApplication(LoadedApk.java:796)
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5377) 
        at android.app.ActivityThread.-wrap2(ActivityThread.java) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1545) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:154) 
        at android.app.ActivityThread.main(ActivityThread.java:6119) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 

• MyApplicationClass擴展了MultiDexApplication
• 我正在清單文件android:name=".view.application.MyApplicationClass"注冊該類
• 我正在使用multiDexEnabled true在gradle.build啟用MultiDex
• 我正在使用compile 'com.android.support:multidex:1.0.2'以獲得向后兼容性
• 我正在使用SOASTA mPulse庫進行性能監控

當我使用apply plugin: 'com.soasta.mpulse.android' 啟用此庫時 apply plugin: 'com.soasta.mpulse.android'將發生異常， 否則該應用程序將正常運行 。

我嘗試了許多解決方案，但沒有一個起作用：

• https://developer.android.com/studio/build/multidex
• http://myhexaville.com/2017/03/10/android-multidex/

嘗試修復此問題已有2天了，我們將不勝感激

Answer 1

我發現解決方案是將android：name =“ android.support.multidex.MultiDexApplication”添加到AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.myapp">
    <application
            android:name="android.support.multidex.MultiDexApplication" >
        ...
    </application>
</manifest>