title: Is it possible to disable all widgets by disabling their wrapping layout?
body: <p><img src="https://i.stack.imgur.com/Fa0E5.png" alt="img"></p>
  
  <p>I tried to disable the children widgets by disabling the wrapping relativeLayout, but that doesn't work, is there any other way to do that? I think this is necessary because sometimes we don't want to setEnable(xx) on every children widgets. So is it possible for me to do that? or is there some similar way ? thx a lot~</p>