我正在用 tabLayout 做一个练习，一个框架有一些文本布局，另一个框架有带滚动的按钮。当我尝试时，它给了我一系列我找不到的错误，我把代码和logcat留给你
2020-01-07 20:20:13.336 27052-27052/? I/om.example.ej1: Late-enabling -Xcheck:jni
2020-01-07 20:20:13.348 27052-27052/? E/om.example.ej1: Unknown bits set in runtime_flags: 0x8000
2020-01-07 20:20:13.561 27052-27052/com.example.ej10 I/Perf: Connecting to perf service.
2020-01-07 20:20:13.578 27052-27114/com.example.ej10 E/Perf: Fail to get file list com.example.ej10
2020-01-07 20:20:13.579 27052-27114/com.example.ej10 E/Perf: getFolderSize() : Exception_1 = java.lang.NullPointerException: Attempt to get length of null array
2020-01-07 20:20:13.579 27052-27114/com.example.ej10 E/Perf: Fail to get file list com.example.ej10
2020-01-07 20:20:13.579 27052-27114/com.example.ej10 E/Perf: getFolderSize() : Exception_1 = java.lang.NullPointerException: Attempt to get length of null array
2020-01-07 …