How to get Activity s content view

Question

What method should I call to know if an Activity has its contentView  once the method setContentView   has been called

User · Answer

There is no  isContentViewSet  method  You may put some dummy requestWindowFeature call into try catch block before setContentView like this    try     requestWindowFeature Window FEATURE CONTEXT MENU     setContentView        catch  AndroidRuntimeException e         do smth or nothing     If content view was already set  requestWindowFeature will throw an exception

User · Answer

The best option I found and the less intrusive  is to set a tag param in your xml  like  PHONE XML LAYOUT   lt android support v4 view ViewPager xmlns android  http   schemas android com apk res android      android id    id pager      android layout width  match parent      android layout height  match parent      android tag  phone   gt    TABLET XML LAYOUT   lt RelativeLayout xmlns android  http   schemas android com apk res android      android id    id pager      android layout width  match parent      android layout height  match parent      android tag  tablet  gt             lt  RelativeLayout gt    and then call this in your activity class   View viewPager   findViewById R id pager   Log d getClass   getSimpleName    String valueOf viewPager getTag        Hope it works for u

User · Answer

How about  View view   Activity getCurrentFocus

User · Answer

You may want to try View getRootView

User · Answer

You can get the view Back if you put an ID to your Layout    lt RelativeLayout     android id    id my relative layout id    And call it from findViewById

User · Answer

this getWindow   getDecorView   findViewById android R id content    or  this findViewById android R id content    or  this findViewById android R id content  getRootView

User · Answer

You can also override onContentChanged   which is among others fired when setContentView   has been called

User · Answer

If you are using Kotlin      this findViewById lt View gt  android R id content                            rootView                           setBackgroundColor ContextCompat getColor this  R color black

[android] How to get Activity's content view?

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