![]() ![]() Additionally, declaring the layout in XML makes it easier to visualize the structure of your UI, so it's easier to debug problems. For example, you can create XML layouts for different screen orientations, different device screen sizes, and different languages. Your UI descriptions are external to your application code, which means that you can modify or adapt it without having to modify your source code and recompile. The advantage to declaring your UI in XML is that it enables you to better separate the presentation of your application from the code that controls its behavior. You quickly analyze your layouts and hierarchies for inefficiencies or other problems. With the XML file opened, select the Layout tab.įor debugging layouts - it reveals layout property values,ĭraws wireframes with padding/margin indicators, and full rendered views while Plugin for Eclipse offers a layout preview of your XML. You could then add code in your application that would modify the state of the screen objects, including those declared in XML, at run time. For example, you could declare your application's default layouts in XML, including the screen elements that will appear in them and their properties. The Android framework gives you the flexibility to use either or both of these methods for declaring and managing your application's UI. YourĪpplication can create View and ViewGroup objects (and manipulate their properties) programmatically. ![]() ![]() Instantiate layout elements at runtime.Vocabulary that corresponds to the View classes and subclasses, such as those for widgets and layouts. It defines the layout structure and holds all the elements that appear to the user. Your layout is the architecture for the user interface in an Activity. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |