逻辑分辨率(iOS开发及设计人员使用):
iPhone 4s/4/3GS/3G: {
{0, 0}, {320, 480}} 宽高比 0.666
iPhone 5/5S/5c/SE: {
{0, 0}, {320, 568}} 0.5633
iPhone 6: {
{0, 0}, {375, 667}} 0.5622
iPhone 6Plus: {
{0, 0}, {414, 736}} 0.5625
iPhone 6s: {
{0, 0}, {375, 667}}
iPhone 6s Plus: {
{0, 0}, {414, 736}}
iPhone 7: {
{0, 0}, {375, 667}}
iPhone 7Plus: {
{0, 0}, {414, 736}}
iPhone 8: {
{0, 0}, {375, 667}}
iPhone 8Plus: {
{0, 0}, {414, 736}}
iPhone X: {
{0, 0}, {375, 812}} 0.4618