android--Lock horizontal screen, vertical screen, go to title full screen

in the XML file, set:

To achieve this, simply declare the activity in Androidmanifest.xml with an attribute: Android:screenorientation, the property value landscape fixed horizontal screen, The portrait is a fixed vertical screen.

<!--android:screenorientation= "portrait" vertical Screen android:screenorientation= "landscape" horizontal screen android:screenorientation= "Unspecified" does not indicate direction             --<activity android:label= "@string/app_name"             android:name= ". Lockthescreenactivity "             android:screenorientation=" Portrait "   

b) The code is implemented as follows:

 @Override public void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setrequestedorientation (Activityinfo.screen_orientation_landscape);//cross-screen//setrequestedorientation (     activityinfo.screen_orientation_portrait) Vertical screen Setcontentview (r.layout.main); } 

When the screen is automatically switched, the default state of the application will recall OnCreate, which is equivalent to restarting the application once. At the same time, layout may cause a problem that cannot be properly adapted by horizontal screen. In order to solve The program restart problem caused by Rotary screen and keyboard switching, an additional attribute is required: android:configchanges. This property can be understood as a listener that will intercept the spin screen and keyboard switching events, preventing the program from restarting and becoming the callback Onconfigurationchanged method. The properties commonly used here are : keyboardhidden|orientation.

Go to the title

<span style= "FONT-SIZE:14PX;" >public void OnCreate (Bundle savedinstancestate) {         super.oncreate (savedinstancestate);     This.requestwindowfeature (Window.feature_no_title);  } </span>

Full Screen

<span style= "FONT-SIZE:14PX;" >public void OnCreate (Bundle savedinstancestate) {         super.oncreate (savedinstancestate);  This.getwindow (). SetFlags (WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_ fullscreen);  } </span>

android--Lock horizontal screen, vertical screen, go to title full screen