创建轻量UIDivece类别用以处理所有的屏幕分辨率
// // UIDevice+Resolutions.h // // // Created by HelenSong on 12-9-25. // Copyright (c) 2012年 . All rights reserved. // #import <UIKit/UIKit.h> enum { UIDevice_iPhoneStandardRes = 1, // iPhone 1,3,3GS Standard Resolution (320x960px) UIDevice_iPhoneHiRes = 2, // iPhone 4,4S High Resolution (640x960px) UIDevice_iPhoneTallerHiRes = 3, // iPhone 5 High Resolution (640x1136px) UIDevice_iPadStandardRes = 4, // iPad 1,2 Standard Resolution (1024x768px) UIDevice_iPadHiRes = 5 // iPad 3 High Resolution (2048x1536px) }; typedef NSUInteger UIDeviceResolution; @interface UIDevice (Resolutions) { } + (UIDeviceResolution) currentResolution; @end
// // UIDevice+Resolutions.m // // // Created by HelenSong on 12-9-25. // Copyright (c) 2012年 . All rights reserved. // #import "UIDevice+Resolutions.h" @implementation UIDevice (Resolutions) + (UIDeviceResolution) currentResolution { if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone){ if ([[UIScreen mainScreen] respondsToSelector: @selector(scale)]) { CGSize result = [[UIScreen mainScreen] bounds].size; result = CGSizeMake(result.width * [UIScreen mainScreen].scale, result.height * [UIScreen mainScreen].scale); return (result.height == 960 ? UIDevice_iPhoneHiRes : UIDevice_iPhoneTallerHiRes); } else return UIDevice_iPhoneStandardRes; } else return (([[UIScreen mainScreen] respondsToSelector: @selector(scale)]) ? UIDevice_iPadHiRes : UIDevice_iPadStandardRes); } @end
方法二:使用宏定义方式判断是否为iphone5
#define iPhone5 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size) : NO)
if (!iPhone5) { [[NSBundle mainBundle]loadNibNamed:@"xxxController" owner:self options:nil]; }else { [[NSBundle mainBundle]loadNibNamed:@"xxxController4inch" owner:self options:nil]; }