在Android Studio 3.4的布局编辑器中不可见的按钮
问题描述：
尽管Internet上的许多教程，视频和书籍都显示了基线编辑.删除约束和循环链模式按钮( x ， ab 和 chain 按钮)在版式编辑器中所选组件的下方，我在更新后的 Android Studio 3.4 中看不到它们.这怎么可能?我只能通过上下文菜单执行这些操作.
Although many tutorials, videos, and books in Internet show the baseline edit. delete constraint and cycle chain mode buttons (x, ab and chainbuttons) below the selected component in the Layout Editor, I can't see them in my updated Android Studio 3.4. How is it possible? I can only do these operations with the context menu.
答
您可以找到从上下文菜单中切换基线"的菜单，例如
You can find menu to toggle Baseline from context menu e.g
活动设计视图>组件树
Activity Design View > Component Tree
选择button2并单击鼠标右键以在button2上弹出上下文菜单
Select button2 and right-click to bring up the Context menu on button2