The import ... cannot be resolved
片段如下:
import com.handmark.pulltorefresh.library.PullToRefreshBase; //第1句
import com.handmark.pulltorefresh.library.PullToRefreshListView; //第2句
import com.handmark.pulltorefresh.library.PullToRefreshBase.Mode; //第3句
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener; //第4句
问题:
开始4个都报错,说是:The import com.handmark.pulltorefresh... cannot be resolved,后来我添加了一个
com_handmark_pulltorefresh_library.jar包,第1,2,4句好了,但第三句还是没好依然报错:The import com.handmark.pulltorefresh.library.PullToRefreshBase.Mode cannot be resolved,请问这一系列问题有什么系统的解决方法