安卓开发中,出现错误:main_activiy cannot be resolved or is not a field。
查看R.java,里面有这个布局文件的id,查看警告信息发现不应该导入 android.R;
警告信息:
Description Resource
Path Location
Type
Don't include android.R here; use a fully qualified name for each usage instead
MainActivity.java /Contact/src/com/tc/contact
line 3 Android Lint Problem