android对话框显示异常报错:You need to use a Theme.AppCompat theme (or descendant) with this activity....
今天写android实验碰到到一个问题,在用AlertDialog.Builder类构建一个对话框之后,调用Builder.show()方法时抛出异常如下:06-16 21:52:16.456 5017-5017/xyz.qlrr.sqliteapp W/System.err: java.lang.IllegalStateException: You need to use a Theme...