androidble报错

android报错res\drawable-xhdpi\ic_Dianhua.png:Invalid file name:must contain only...

我检查了一下没发现有什么错的。然后又一个标签一个标签的检查，也没发现错的。后来才注意到最后面的正则表达式：意思是文件名必须是"小写字母","0～9"的数字,下划线"—"和"."[2011-04-07 22:24:57-LayoutActivity]res/layout/Mylayout....

android studio开发为什么我创建类，也导入这个类的包了，可报错提示找?报错

android studio开发为什么我创建类，也导入这个类的包了，可报错提示找不到符号希望哪位遇到类似的问题帮我解答一下

【Android】树形菜单、扩展下拉菜单BaseExpandableListAdapte.：报错

import android.app.Activity;import android.os.Bundle;import android.view.ViewGroup.LayoutParams;import android.widget.ExpandableListView;import android.widget.ViewFlipper;public class ExpandLabel extends Activity {/*Called...

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