By Belen Cruz Zapata
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Extra resources for Android Studio Essentials
A new layout will be opened in the editor. xml. Now we can edit the new layout variation such that it perfectly conforms to landscape mode. [ 48 ] Chapter 5 Similarly, we can create a variation of the layout for extra-large screens. Select the Create layout-xlarge Variation option. xml. Android divides into the actual screen sizes small, normal, large, and xlarge: • Small: Screens classified in this category are at least 426 dp x 320 dp • Normal: Screens classified in this category are at least 470 dp x 320 dp • Large: Screens classified in this category are at least 640 dp x 480 dp • Xlarge: Screens classified in this category are at least 960 dp x 720 dp A dp is a density-independent pixel, equivalent to one physical pixel on a 160 dpi screen.
The properties are also configured using XML declarations. Like the graphical editor, the text editor shows just the text view element inside the root layout. Creating a new layout When we created our main activity, the associated layout was also created. This is a way of creating a layout when creating an activity. To add an independent layout without creating a new activity, right-click on the layouts folder (res/layout/) and navigate to New | Layout resource file. You can also navigate to this menu option like this: File | New | Layout resource file.
Menu/: This is a folder that contains the XML definitions of the menus of the application. • values/: This is a folder that contains the XML files that define sets of namevalue pairs. These values can be colors, strings, or styles. There are different values folders categorized into different screen options to adapt the interface to them; for example, to enlarge the components or the fonts when the application is running on a tablet. Our basic project contains some basic resources. Therefore, all the folders discussed here are not necessarily included by default.