showMenu( context: context, position: RelativeRect.fill, items: <PopupMenuEntry>[ PopupMenuItem(child: Text('语文')), PopupMenuDivider(), CheckedPopupMenuItem( child: Text('数学'), checked: true, ), PopupMenuDivider(), PopupMenuItem(child: Text('英语')), ]); 1. 2. 3. 4. 5. 6...
showMenu( context: context, position: RelativeRect.fill, items: <PopupMenuEntry>[ PopupMenuItem(child: Text('语文')), PopupMenuDivider(), CheckedPopupMenuItem( child: Text('数学'), checked:true, ), PopupMenuDivider(), PopupMenuItem(child: Text('英语')), ]); position参数表示弹出的位置,...
如果你看下PopupMenuButton的源码会发现,PopupMenuButton也是使用showMenu实现的,用法如下: 代码语言:javascript 复制 showMenu(context:context,position:RelativeRect.fill,items:<PopupMenuEntry>[PopupMenuItem(child:Text('语文')),PopupMenuDivider(),CheckedPopupMenuItem(child:Text('数学'),checked:true,),Popup...
showCupertinoModalPopup( context: context, filter: ImageFilter.blur(sigmaX: 5.0, sigmaY: 5.0), ... ) 效果如下: 弹出框以外的区域有毛玻璃的效果。 showMenu showMenu弹出一个Menu菜单,用法如下: showMenu( context: context, position: RelativeRect.fill, items: <PopupMenuEntry>[ PopupMenuItem(child:...
showCupertinoDialog showCupertinoDialog 用于弹出ios风格对话框,基本用法如下: showCupertinoDialog(context:context,builder:(context){returnCupertinoAlertDialog(...);}); 效果如下: builder通常返回CupertinoDialog或者CupertinoAlertDialog。 showGeneralDialog
在Flutter中有一个显示菜单的方法showMenu它可以显示一个菜单. 以此代码为例 showMenu( context: context, position: RelativeRect.fromLTRB(100.0,200.0,100.0,200.0),// 在屏幕的哪个位置弹出items: <PopupMenuEntry<String>>[ PopupMenuItem<String>(
showMenu( context: context, ///这个坐标值不好调整,下面我的经验值,位置在手指点击点的左下方,想往左移动给110+数字 往下移动180加数字position:RelativeRect.fromLTRB(dx,dy,dx+110,dy-40),items:[///建议指定value属性PopupMenuItem<String>(
PopupMenuButton 使用PopupMenuButton,点击时弹出菜单,用法如下: PopupMenuButton<String>( itemBuilder: (context) { return <PopupMenuEntry<String>>[ PopupMenuItem<String>( value: '语文', child: Text('语文'), ), PopupMenuItem<String>( value: '数学', ...
showMenu showMenu弹出一个Menu菜单,用法如下: 代码语言:txt 复制 showMenu( context: context, position: RelativeRect.fill, items: <PopupMenuEntry>[ PopupMenuItem(child: Text('语文')), PopupMenuDivider(), CheckedPopupMenuItem( child: Text('数学'), ...
Flutter 下拉菜单实现 IconButton( icon: Icon(Icons.more_horiz), onPressed: (){ showMenu( context:context, position:RelativeRect.fromLTRB(600, 76, 10, 0), ite