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#Android studio fragment image android
NOTE: The id MUST be named list from the Android framework (e.g., CHECK POINT: You can see a preview of the TextView and ListView components with some default text (Item, Sub Item 1) either in the Design view or Text View with the Preview panel open. Still in the fragment_main.xml layout file, add a ListView component in the RelativeLayout element by typing.In the fragment_main.xml layout file that opens, add a TextView in the RelativeLayout element by type.So instead of doing New > Activity >, you do New > Layout Resource File. NOTE: Even though a LAYOUT file appears similar to an ACTIVITY, the different is that an activity has to be registered in the AndroidManifest.xml file. Right-click on the layout folder and select New > Layout Resource File and enter the following values and then click the OK button:.CHECK POINT: With the activity_main.xml selected and with the Design tab selected, you should see an EMPTY container to hold the fragment activity that will be created next.The MainActivity that was automatically created when the project was created completed the XML and Java file needed for the Master page. Now that the activity_main.xml file is EMPTY, it can act as a CONTAINER for the fragment file that will be created next. Also, optional, you change the ConstraintLayout to a FrameLayout since a FrameLayout component is designed for a SINGLE object. Optional, in Text view, you can delete the package prefix from the tools:context attribute (e.g., 1) but leave the dot AND the package name (e.g. Open the activity_main.xml file and in the Design view or Text view, delete the default TextView component (“Hello, World!).
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Create Layout For Master Activityįirst, we need to create a fragment layout using XML for the Master Activity However, apps that use fragments typically use the ListFragment class for the same reasons. Where the Master page shows a small amount of information about a topic (e.g., product) typically using a ListView or Table and the Detail page shows more “detail” information about the item that is selected from the ListView or Table.Īndroid apps that employ lists typically use the ListActivity class that handles interaction better than the normal Activity. Many apps work with the Master/Detail Pages (Activities) methodology.