ios开发适配3.5寸和4寸屏幕

#define DEVICE_IS_IPHONE5 ([[UIScreen mainScreen] bounds].size.height == 568) 接着我们可以在view初始化的时候改变frame:

 

if (DEVICE_IS_IPHONE5) {  

        [botton setFrame:CGRectMake(0, 450, 320, 440)];  

}