Get root view from current activity

Question

I know how to get the root view with View getRootView    I am also able to get the view from a button s onClick event where the argument is a View  But how can I get the view in an activity

User · Answer

anyview getRootView    will be the easiest way

User · Answer

Kotlin Extension Solution  Use this to simplify access in an Activity  Then you can directly refer to rootView from the Activity  or activity rootView outside of it   val Activity rootView get     window decorView rootView   If you d like to add the same for Fragments for consistency  add   val Fragment rootView get     view  rootView

User · Answer

In Kotlin we can do it a little shorter   val rootView   window decorView rootView

User · Answer

I tested this in android 4 0 3  only   getWindow   getDecorView   getRootView     give the same view what we get from   anyview getRootView     com android internal policy impl PhoneWindow DecorView             and   getWindow   getDecorView   findViewById android R id content    giving child of its  android widget FrameLayout           Please confirm

User · Answer

if you are in a activity  assume there is only one root view you can get it like this   ViewGroup viewGroup    ViewGroup    ViewGroup  this          findViewById android R id content   getChildAt 0     you can then cast it to your real class  or you could using   getWindow   getDecorView      notice this will include the actionbar view  your view is below the actionbar view

User · Answer

to get View of the current Activity  in any onClick we will be getting  View view   by using  view  get the rootView   View view   view getRootView     and to get View in fragment  View view   FragmentClass getView

User · Answer

Another Kotlin Extension solution  If your activity s view is declared in xml  ex activity root xml   open the xml and assign an id to the root view   android id    id root activity    Now in your class  import the view using   import kotlinx android synthetic main activity root root activity   You can now use root activity as the view

User · Answer

If you need root view of your activity  so you can add your contents there  use  findViewById android R id content  getRootView     Also it was reported that on some devices you have to use   getWindow   getDecorView   findViewById android R id content    instead   Please note that as Booger reported  this may be behind navigation bar  with back button etc   on some devices  but it seems on most devices it is not    If you need to get view that you added to your activity using setContentView   method then as pottedmeat wrote you can use  final ViewGroup viewGroup    ViewGroup    ViewGroup  this              findViewById android R id content   getChildAt 0     But better just set id to this view in your xml layout and use this id instead

User · Answer

This is what I use to get the root view as found in the XML file assigned with setContentView   final ViewGroup viewGroup    ViewGroup    ViewGroup  this              findViewById android R id content   getChildAt 0

User · Answer

Just incase Someone needs an easier way    The following code gives a view of the whole activity   View v1   getWindow   getDecorView   getRootView     To get a certian view in the activity for example an imageView inside the activity  simply add the id of that view you want to get   View v1   getWindow   getDecorView   getRootView   findViewById R id imageView1     Hope this helps somebody

User · Answer

For those of you who are using the Data Binding Library  to get the root of the current activity  simply use   View rootView   dataBinding getRoot      And for Kotlin users  it s even simpler   val rootView   dataBinding root

User · Answer

Get root view from current activity  Inside our activity we can get the root view with  ViewGroup rootView    ViewGroup    ViewGroup  this              findViewById android R id content   getChildAt 0    or View rootView   getWindow   getDecorView   getRootView

[android] Get root view from current activity

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