本文章转自:http://blog.csdn.net/chenguang79/article/details/9222817
// 获取屏幕宽高(方法1)
int screenWidth = getWindowManager().getDefaultDisplay().getWidth(); // 屏幕宽(像素,如:480px)
int screenHeight = getWindowManager().getDefaultDisplay().getHeight(); // 屏幕高(像素,如:800p)
Log.e(TAG + " getDefaultDisplay", "screenWidth=" + screenWidth + "; screenHeight=" + screenHeight);
// 获取屏幕密度(方法2)
DisplayMetrics dm = new DisplayMetrics();
dm = getResources().getDisplayMetrics();
float density = dm.density; // 屏幕密度(像素比例:0.75/1.0/1.5/2.0)
int densityDPI = dm.densityDpi; // 屏幕密度(每寸像素:120/160/240/320)
float xdpi = dm.xdpi;
float ydpi = dm.ydpi;
Log.e(TAG + " DisplayMetrics", "xdpi=" + xdpi + "; ydpi=" + ydpi);
Log.e(TAG + " DisplayMetrics", "density=" + density + "; densityDPI=" + densityDPI);
screenWidth = dm.widthPixels; // 屏幕宽(像素,如:480px)
screenHeight = dm.heightPixels; // 屏幕高(像素,如:800px)
Log.e(TAG + " DisplayMetrics(111)", "screenWidth=" + screenWidth + "; screenHeight=" + screenHeight);
// 获取屏幕密度(方法3)
dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
density = dm.density; // 屏幕密度(像素比例:0.75/1.0/1.5/2.0)
densityDPI = dm.densityDpi; // 屏幕密度(每寸像素:120/160/240/320)
xdpi = dm.xdpi;
ydpi = dm.ydpi;
Log.e(TAG + " DisplayMetrics", "xdpi=" + xdpi + "; ydpi=" + ydpi);
Log.e(TAG + " DisplayMetrics", "density=" + density + "; densityDPI=" + densityDPI);
int screenWidthDip = dm.widthPixels; // 屏幕宽(dip,如:320dip)
int screenHeightDip = dm.heightPixels; // 屏幕宽(dip,如:533dip)
Log.e(TAG + " DisplayMetrics(222)", "screenWidthDip=" + screenWidthDip + "; screenHeightDip=" + screenHeightDip);
screenWidth = (int)(dm.widthPixels * density + 0.5f); // 屏幕宽(px,如:480px)
screenHeight = (int)(dm.heightPixels * density + 0.5f); // 屏幕高(px,如:800px)
Log.e(TAG + " DisplayMetrics(222)", "screenWidth=" + screenWidth + "; screenHeight=" + screenHeight);