Set common functions of Android activity (full screen, portrait screen, etc)

Activity Full Screen Settings

Method 1:Androidmanifest. xml

<Activity Android: Name = "myacitivty" Android: theme = "@ Android: style/theme. notitlebar. fullscreen"/>

Method 2:Code Implementation

Requestwindowfeature (window. feature_no_title); // hide the title bar

Getwindow (). setflags (windowmanager. layoutparams. flag_fullscreen, windowmanager. layoutparams. flag_fullscreen); // hide the status bar

Note:The full screen code must be set before setcontentview (R. layout. Main). Otherwise, an error is returned.

Activity horizontal and vertical Screen Settings

Method 1:Androidmanifest. xml

<Activity Android: Name = "myacitivty" Android: screenorientation = "Landscape"/> // or "portrait"

Method 2:Code Implementation

Setrequestedorientation (activityinfo. screen_orientation_landscape );

Obtain the horizontal screen direction

Int orientation = This. getresources (). getconfiguration (). orientation;

OrientationThe common values can be activityinfo. screen_orientation_landscape (landscape) or activityinfo. screen_orientation_portrait (landscape)

Activity screen always displays

1: androidmanifest. xml add permissions

<Uses-Permission Android: Name = "android. Permission. wake_lock"/>

2: code implementation

Getwindow (). addflags (windowmanager. layoutparams. flag_keep_screen_on );