Don t really have a minimum repro atm but wanted to ask if a

Question

Don t really have a minimum repro atm but wanted to ask if anyone else has seen this before When using a `androidx compose ui platform ComposeView` in xml in a fragment with ConstraintLayout being the parent I am getting a crash `Cannot add views to ComposeView only Compose content is supported` error when I am trying to work with having an exit transition on the fragment that contains said ComposeView The code that breaks this is something like ```supportFragmentManager findFragmentByTag someTag exitTransition = MaterialSharedAxis SHARED AXIS true ``` Full stack trace in thread thread

Stylianos Gakis · Answer

```java lang UnsupportedOperationException Cannot add views to ComposeView only Compose content is supported at androidx compose ui platform AbstractComposeView checkAddView ComposeView android kt 202 at androidx compose ui platform AbstractComposeView addView ComposeView android kt 346 at androidx transition TransitionUtils createViewBitmap TransitionUtils java 138 at androidx transition TransitionUtils copyViewImage TransitionUtils java 64 at androidx transition Visibility onDisappear Visibility java 401 at androidx transition Visibility createAnimator Visibility java 257 at androidx transition Transition createAnimators Transition java 747 at androidx transition TransitionSet createAnimators TransitionSet java 480 at androidx transition TransitionSet createAnimators TransitionSet java 480 at androidx transition Transition playTransition Transition java 1821 at androidx transition TransitionManager$MultiListener onPreDraw TransitionManager java 301 at android view ViewTreeObserver dispatchOnPreDraw ViewTreeObserver java 991 at android view ViewRootImpl performTraversals ViewRootImpl java 3038 at android view ViewRootImpl doTraversal ViewRootImpl java 1911 at android view ViewRootImpl$TraversalRunnable run ViewRootImpl java 8526 at android view Choreographer$CallbackRecord run Choreographer java 949 at android view Choreographer doCallbacks Choreographer java 761 at android view Choreographer doFrame Choreographer java 696 at android view Choreographer$FrameDisplayEventReceiver run Choreographer java 935 at android os Handler handleCallback Handler java 873 at android os Handler dispatchMessage Handler java 99 at android os Looper loop Looper java 214 at android app ActivityThread main ActivityThread java 7078 at java lang reflect Method invoke Native Method at com android internal os RuntimeInit$MethodAndArgsCaller run RuntimeInit java 494 at com android internal os ZygoteInit main ZygoteInit java 964 ```

Adam Powell · Answer

Please file the issue against the androidx transition component