当在可视化视图上方设置另一个视图时，如果在相对布局上设置可视性时，行为是否一致？

Question

I have a relative layout with two views:

<RelativeLayout ...>

<view
android:id:""+@id/view1"
android:layout_above:"+@id/view2" />


<view
android:id:""+@id/view2"
android:layout_alignParentBottom="true" />

</RelativeLayout>

Is there consistent behavior when I set view2 Visibility to gone?

Answer 1

If I undestand you correctly you can do this in 3 ways:

• in this case you should use linearlayout because it will always be above view2 even if its GONE ;
• if you want to maintain view1 on top of view2 like putting view2 visibility to invisible ;
• or align view1 to parent if view2 is gone with this in your xml set to true: android:layout_alignWithParentIfMissing

Let me know if I can help you.

Edit:
when you put the view to GONE is like it doesn't exist so, view1 will be placed just like this line doesn't exists: android:layout_above:"+@id/view2"