获取屏幕宽度的三个方法

1、WindowManager wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);int width = wm.getDefaultDisplay().getWidth();int height = wm.getDefaultDisplay().getHeight();  2、WindowManager wm1 = this.getWindowManager();int width1 = wm1.getDefaultDisplay().getWidth();int height1 = wm1.getDefaultDisplay().getHeight();               3、DisplayMetrics dm = new DisplayMetrics();getWindowManager().getDefaultDisplay().getMetrics(dm);int mScreenWidth = dm.widthPixels;// 获取屏幕分辨率宽度int mScreenHeight = dm.heightPixels