Note that commitNow is incompatible with addToBackStack. To run the fragment transaction on your UI thread immediately. Scheduled to run on the main UI thread as soon as it is able to do so. For more information, seeĭoesn't perform the transaction immediately. Mechanisms for creating the fragment are also used for restoring theīy default, the changes made in a FragmentTransaction are not added to

Take a Class rather than a fragment instance to ensure that the same Note: It is strongly recommended to always use fragment operations that If any, that is currently in the layout container identified by In this example, a new instance of ExampleFragment replaces the fragment, Transaction.replace(R.id.fragment_container, ExampleFragment.class, null) Replace whatever is in the fragment_container view with this fragmentįragmentTransaction transaction = fragmentManager.beginTransaction() The following code snippet shows how you can replace one fragment with another:

Calling replace() is equivalent toĬalling remove() with a fragment in a container and adding a new To replace an existing fragment in a container with an instance of a Removed from the container at this point. If the fragment's view was previously added to a container, the view is Manager through findFragmentById() or findFragmentByTag(). Passing in a fragment instance that was retrieved from the fragment It is strongly recommended that the container is a The added fragment is moved to the RESUMED The ID of the container for the fragment, as well as the class name of theįragment you wish to add. To add a fragment to a FragmentManager, call This flag affects both the initial execution of the transaction and reversing Lifecycle changes or have their animations or transitions executed. ones that are added and then immediately replaced) do not go through Multiple transactions are executed together, any intermediate fragments Your FragmentTransaction, particularly when it operates on the back stackĪnd runs animations and transitions. It is required, however, to allow FragmentManager to properly execute

For behavior compatibility, the reordering flag is not enabled by default.

Android studio fragment not show