第一行代码 Android 第2版

• 2.4.4 P57
  • 报错 java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
  • 解决方法:
    • 修改 DialogActivity.java,父类

      public class DialogActivity extends Activity
      

  • 参考链接: https://stackoverflow.com/questions/24850780/my-android-app-crashes-after-adding-androidstyle-theme-dialog-in-the-android