Then, you can instantiate yourįragment within your activity's onCreate() method using In your FragmentActivity, you canĬan be used to create a FragmentTransaction. While your activity is running, you can make fragment transactions such asĪdding, removing, or replacing a fragment. Is used to instantiate a fragment and add it to the activity's layout. Unlike the XML approach, the android:name attribute isn't used on theįragmentContainerView here, so no specific fragment is automatically Should include a FragmentContainerView to serve as a fragment container, To programmatically add a fragment to your activity's layout, the layout Note: You can use the class attribute instead of android:name as anĪlternative way to specify which Fragment to instantiate. Is created to add the fragment to the FragmentManager. Is called on the newly instantiated fragment, and a FragmentTransaction When the activity's layout is inflated, the specified fragment The android:name attribute specifies the class name of the Fragment to Here's an example activity layout containing a single To declaratively add a fragment to your activity layout's XML, use a View groups such as FrameLayout do not provide. It is strongly recommended to always use aįragmentContainerView as the container for fragments, asįragmentContainerView includes fixes specific to fragments that other That defines the location where the fragment should be placed within theĪctivity's view hierarchy. Programmatically adding the fragment from within your activity. You can add your fragment to the activity's view hierarchy either byĭefining the fragment in your activity's layout file or by defining aįragment container in your activity's layout file and then So if you're already subclassing AppCompatActivity to provide backwardĬompatibility in your app, then you do not need to change your activity Generally, your fragment must be embedded within an AndroidXĬontribute a portion of UI to that activity's layout. You can use PreferenceFragmentCompat toĬreate a settings screen for your app. PreferenceFragmentCompat Displays a hierarchy of See Displaying dialogs with DialogFragmentįor more details. Using this class to create a dialog is a goodĪlternative to using the dialog helper methods in theĪutomatically handle the creation and cleanup of the Dialog. The Fragment library also provides more specialized fragment base classes: DialogFragment Displays a floating dialog. Class ExampleFragment : Fragment(R.layout.example_fragment)
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |