Android Studio 文件下载3

Question

小程序实现歌词下载
代码没有错误
运行APK出现错误信息

 08-22 20:40:14.650 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super
08-22 20:40:14.650 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super
08-22 20:40:14.650 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.media.session.MediaController', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super
08-22 20:40:14.650 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.widget.Toolbar', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super
08-22 20:40:14.650 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.app.ActivityManager$TaskDescription', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super
08-22 20:40:14.650 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super
08-22 20:40:14.650 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super
08-22 20:40:14.650 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super
08-22 20:40:14.650 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.app.assist.AssistContent', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super
08-22 20:40:14.670 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.view.SearchEvent', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super
08-22 20:40:14.670 15702-15702/com.example.administrator.myapplication118 E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.administrator.myapplication118.download.MainActivity.access$super

Answer 1

不知道是不是这种情况 http://blog.csdn.net/lovejjfg/article/details/49796665

要是可以看到代码更好分析。