Android应用程序未在较高版本上运行

Question

该应用程序在Emulator（5.1）和我的手机（4.1.2）中运行良好，但它在打开时与bluestacks（4.4.2）中的“不幸应用程序停止”在真正的手机高于4.1

在Bluestacks中运行时，我得到以下错误。试图改变minsdk版本和appcompact选项。

10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer I/dalvikvm: Could not find method android.content.Context.getSystemService, referenced from method com.androidhive.musicplayer.MusicPlayerMainActivity.access$super 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer W/dalvikvm: VFY: unable to resolve virtual method 524: Landroid/content/Context;.getSystemService (Ljava/lang/Class;)Ljava/lang/Object; 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer D/dalvikvm: VFY: replacing opcode 0x6f at 0x004b 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer I/dalvikvm: Could not find method android.app.Activity.stopLockTask, referenced from method com.androidhive.musicplayer.MusicPlayerMainActivity.access$super 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer W/dalvikvm: VFY: unable to resolve virtual method 279: Landroid/app/Activity;.stopLockTask()V 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer D/dalvikvm: VFY: replacing opcode 0x6f at 0x00b9 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer I/dalvikvm: Could not find method android.app.Activity.isInMultiWindowMode, referenced from method com.androidhive.musicplayer.MusicPlayerMainActivity.access$super 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer W/dalvikvm: VFY: unable to resolve virtual method 102: Landroid/app/Activity;.isInMultiWindowMode()Z 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer D/dalvikvm: VFY: replacing opcode 0x6f at 0x00eb 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.androidhive.musicplayer.MusicPlayerMainActivity.access$super 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer W/dalvikvm: VFY: unable to resolve check-cast 234 (Landroid/os/PersistableBundle;) in Lcom/androidhive/musicplayer/MusicPlayerMainActivity; 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer D/dalvikvm: VFY: replacing opcode 0x1f at 0x00fc 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer I/dalvikvm: Could not find method android.content.Context.getColorStateList, referenced from method com.androidhive.musicplayer.MusicPlayerMainActivity.access$super 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer W/dalvikvm: VFY: unable to resolve virtual method 505: Landroid/content/Context;.getColorStateList (I)Landroid/content/res/ColorStateList; 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer D/dalvikvm: VFY: replacing opcode 0x6f at 0x010c 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer I/dalvikvm: Could not find method android.app.Activity.onVisibleBehindCanceled, referenced from method com.androidhive.musicplayer.MusicPlayerMainActivity.access$super 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer W/dalvikvm: VFY: unable to resolve virtual method 193: Landroid/app/Activity;.onVisibleBehindCanceled()V 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer D/dalvikvm: VFY: replacing opcode 0x6f at 0x011c 
10-21 22:27:22.551 12147-12147/player.kri.com.saranplayer I/dalvikvm: Could not find method android.content.ContextWrapper.deleteSharedPreferences, referenced from method com.androidhive.musicplayer.MusicPlayerMainActivity.access$super 

真的很感谢您的帮助。

Answer 1

根据谷歌Android工程师的说法，这是正常现象。

参考https://code.google.com/p/android/issues/detail?id=198567

当你编译反对更高的API级别比部署的设备API级别会出现这种情况。日志表明，有些方法不可用，并且虚拟机将用替代实现替换它们。

这只是意味着你有一个方法的引用，该方法在当前运行代码的平台上不可用。

解决您的问题写一个运行时开关：

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { 
    // You can use here an API which was added in Lollipop. 
}