android 获取屏幕的长和宽

 

     DisplayMetrics dm = new DisplayMetrics();       PicCenterItem.this.getWindowManager().getDefaultDisplay().getMetrics(dm);       int mWidth = dm.widthPixels;       int mHeight = dm.heightPixels;             if (mHeight > mWidth){        //竖屏       }else{        //横屏       } 说明： PicCenterItem：当前类