Android获取屏幕大小工具类

import android.app.Activity;
import android.util.DisplayMetrics;
 
public class Screen {
 
    private Screen(){
         
    }
 
    public static float getDensity(Activity active) {
        DisplayMetrics dm = active.getResources().getDisplayMetrics();
        return dm.density;
    }
    public static int getDensityDPI(Activity active) {
        DisplayMetrics dm = active.getResources().getDisplayMetrics();
        return dm.densityDpi;
    }
    public static int getScreenWidth(Activity active) {
        DisplayMetrics dm = active.getResources().getDisplayMetrics();
        return dm.widthPixels;
    }
    public static int getScreenHeight(Activity active) {
        DisplayMetrics dm = active.getResources().getDisplayMetrics();
        return dm.heightPixels;
    }
     
     
}