DisplayMetrics metrics = DisplayUtils.getMetrics(this);
intwidth = metrics.widthPixels;
intheight = metrics.heightPixels;
KLog.i(TAG,"屏幕 宽="+ width +"px"+", 高="+ height +"px");
floatdensity = metrics.density;// 密度值
KLog.i(TAG,"屏幕 密度="+ density +"dpi");
floatxdpi = metrics.xdpi;//x轴每英寸的像素
KLog.i(TAG,"xdpi="+ xdpi +"dpi");
floatydpi = metrics.ydpi;//y轴每英寸的像素
KLog.i(TAG,"ydpi="+ ydpi +"dpi");
floatxInch = width / xdpi;
KLog.i(TAG,"xInch="+ xInch +"英寸");
floatyInch = height / ydpi;
KLog.i(TAG,"yInch="+ yInch +"英寸");
doublescreenInch = Math.sqrt(Math.pow(xInch,2) + Math.pow(yInch,2));
KLog.i(TAG,"屏幕尺寸="+ screenInch +"英寸");
