android获取屏幕宽高与获取控件宽高,android获取屏幕宽高与获取控件宽高

本文章转自：http://blog.youkuaiyun.com/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);