Layout Resource SEE ALSO Layouts A layout resource defines the architecture for the UI in an Activity or a component of a UI. FILE LOCATION: res/layout/filename.xml The filename will be used as the resource ID. COMPILED RESOURCE DATATYPE: Resource po…
简介 <include>Includes a layout file into this layout. 类似 #include ,把layout展开在include处 attributes: layout Layout resource. Required. Reference to a layout resource. android:id Resource ID. Overrides the ID given to the root view in the included layout…
Re-using Layouts with <include/> THIS LESSON TEACHES YOU TO Create a Re-usable Layout Use the <include> Tag Use the <merge> Tag YOU SHOULD ALSO READ Layout Resources Although Android offers a variety of widgets to provide small and re-us…
Loading Views On Demand THIS LESSON TEACHES YOU TO Define a ViewStub Load the ViewStub Layout YOU SHOULD ALSO READ Optimize with stubs (blog post) Sometimes your layout might require complex views that are rarely used. Whether they are item details,…
In this document Overview Accessing a provider Content URIs Content Provider Basics A content provider manages access to a central repository of data. A provider is part of an Android application, which often provides its own UI for working with the…
Intents An Intent is a messaging object you can use to request an action from another app component. Although intents facilitate communication between components in several ways, there are three fundamental use-cases: Intent用来封装各组件跳转时的数据,行为,目标组件等信息的类…
Action Bar The action bar is a window feature that identifies the user location, and provides user actions and navigation modes. Using the action bar offers your users a familiar interface across applications that the system gracefully adapts for dif…
