I recently saw an article on the Internet about how to use requestWindowFeature () in android windows.
RequestWindowFeature (Window. FEATURE_LEFT_ICON );
SetContentView (R. layout. dialog_activity );
GetWindow (). setFeatureDrawableResource (Window. FEATURE_LEFT_ICON, android. R. drawable. ic_dialog_alert );
Android Application Form display status operation (Application of requestWindowFeature)
During development, full screen display, custom titles (using buttons and other controls), and other requirements are often required. Today we will talk about how to control the form display of Android applications.
First, an important method is introduced.RequestWindowFeature (featrueId),Its function is to enable extended form features. A parameter is a constant defined in the Window class.
I. Enumeration Constants
1. DEFAULT_FEATURES: default system status, which is not required
2. FEATURE_CONTEXT_MENU: Enable ContextMenu. This option is enabled by default. Generally, you do not need to specify
3. FEATURE_CUSTOM_TITLE: Custom title. You must specify a custom title. For example, when the title is a button
4. FEATURE_INDETERMINATE_PROGRESS: uncertain progress
5. FEATURE_LEFT_ICON: icon on the left of the title bar
6. FEATURE_NO_TITLE: No title
7. FEATURE_OPTIONS_PANEL: enables the option panel function. It is enabled by default.
8. FEATURE_PROGRESS:Progress indicator Function
9. FEATURE_RIGHT_ICON: icon on the right of the title bar
Ii. Details
1. Default display status
2. FEATURE_CUSTOM_TITLE
This. requestWindowFeature (Window. FEATURE_CUSTOM_TITLE );
SetContentView (R. layout. main );
This is because Featrue is not set.
After the code above, add: getWindow (). setFeatureInt (Window. FEATURE_CUSTOM_TITLE, R. layout. title );
The custom title is complete. It is an xml file layout.
Title. xml