如果它在谷歌播放中给我这个错误，请有人帮助我
java.lang.NullPointerException
at android.widget.TabHost.dispatchWindowFocusChanged(TabHost.java:317)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:662)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:662)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:662)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:662)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:662)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1923)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4633)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
at dalvik.system.NativeStart.main(Native Method)