AlertDialog的show方法就报错这是怎么回事

[都是问题没问题]

我是在子线程中通过hanlder机制调用的显示对话框的方法，但一运行就报错，我把show方法去掉，写个toast就能显示，说明不是Handler的问题，但运行对话框只要show就崩，求教大神 是什么问题？



E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.wangyouwei.a360, PID: 2522
java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.support.v7.app.AppCompatDelegateImplV9.createSubDecor(AppCompatDelegateImplV9.java:359)
at android.support.v7.app.AppCompatDelegateImplV9.ensureSubDecor(AppCompatDelegateImplV9.java:328)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:289)
at android.support.v7.app.AppCompatDialog.setContentView(AppCompatDialog.java:83)
at android.support.v7.app.AlertController.installContent(AlertController.java:225)
at android.support.v7.app.AlertDialog.onCreate(AlertDialog.java:257)
at android.app.Dialog.dispatchOnCreate(Dialog.java:389)
at android.app.Dialog.show(Dialog.java:293)
at android.support.v7.app.AlertDialog$Builder.show(AlertDialog.java:955)
at com.example.wangyouwei.a360.SplashActivity.showDialogUpdate(SplashActivity.java:162)
at com.example.wangyouwei.a360.SplashActivity$1.handleMessage(SplashActivity.java:35)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Application terminated.

[ghx287524027]

第三行错误信息不是告诉你了吗，所用主题与还对话框不一致，要么你就改成错误信息中告诉你的那个主题

[ink_s]

theme。。