Android Global Variables use

1, through a Data.java instance class, can achieve global data preservation, here is not much to say, learn Java know.

2, Android-specific application, is the application of the portal, running through the entire app running process, you can define the global variables in this class

public class Baseapplication extends application {private float screenwidth;private float screenheight;public float GETSC Reenwidth () {return screenwidth;} public void Setscreenwidth (float screenwidth) {this.screenwidth = ScreenWidth;} public float Getscreenheight () {return screenheight;} public void Setscreenheight (float screenheight) {this.screenheight = ScreenHeight;}}

Call directly when using:

                Baseapplication b= (baseapplication) Getapplicationcontext ();        float width=b.getscreenwidth ();        float height=b.getscreenheight ();