Didn't find class "android.os.PersistableBundle"-优快云博客

本文链接：https://blog.youkuaiyun.com/chenrenxiang/article/details/87712946

本文详细解析了Android应用中因使用PersistableBundle而导致的崩溃问题，特别是当minSdkVersion小于21时。文章提供了重写onSaveInstanceState方法的正确方式，避免在API21以下设备上出现ClassNotFoundException。

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文章目录

报错日志

# main(1)java.lang.ClassNotFoundException Didn't find class "android.os.PersistableBundle" on path: DexPathList[[dex file "dalvik.system.DexFile@42c3d798", dex file "dalvik.system.DexFile@42c51e70", zip file "/data/app/com.fsgx.car.android.igo-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.fsgx.car.android.igo-1, /vendor/lib, /system/lib, /data/datalib]]


java.lang.NoClassDefFoundError:android/os/PersistableBundle
 java.lang.Class.getDeclaredMethods(Native Method)
 ......
 Caused by:
 java.lang.ClassNotFoundException:Didn't find class "android.os.PersistableBundle" on path: DexPathList[[dex file "dalvik.system.DexFile@42c3d798", dex file "dalvik.system.DexFile@42c51e70", zip file "/data/app/com.fsgx.car.android.igo-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.fsgx.car.android.igo-1, /vendor/lib, /system/lib, /data/datalib]]

原因

原因是在Activity中重写了 onSaveInstanceState方法，并使用了下面的带有PersistableBundle参数的方法。而 PersistableBundle是在android 21 增加的，所以在 API 21 以下的机器会找不到 PersistableBundle ，从而导致程序崩溃并报如上错误。

@override
public void onSaveInstanceState(Bundle outState) {
     super.onSaveInstanceState(outState);
}
  
@Override
public void onSaveInstanceState(Bundle outState, PersistableBundle outPersistentState) {
    super.onSaveInstanceState(outState, outPersistentState);
}