背景:

集成环信项目,某些个别界面,打开或者启动alterDialog就会崩机,报如图说下错误

Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity

Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity - 图1

原因:

1 该Acitivity继承了某些兼容Activity,如ActionBarActivity，它来自android.support.v7.app.ActionBarActivity ,所以就要使用与其配合的AppCompat的theme才行。

2 application中已经添加了style,activity声明中也添加了style,两则冲突,如图:

Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity - 图2

Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity - 图3

解决方法:

1 原因1中的解决方法就是,给报错的Activity加上thme.
2 原因2中 的解决方法就是,根据需求,删除application或者Activity的thme.