auto Layout

1, 以iPhone5s为根基的代码自动布局后续版本全适配.

扩展链接(关于iPhone的各版本像素点以及iOS8,Xcode6的一些描述):

http://www.cocoachina.com/ios/20140912/9601.html

(1)引入数据

iPhone4s      480/320 ———  1.5

iPhone5s      568/320  ———1.775

iPhone6        667/375  ——— 1.779

iPhone6plus  736/414  ———1.778

观察可以发现规律,排除iPhone4s ,后续的iPhone版本高宽比例大致都处在1.77 - 1.78这个范围.(就目前而言).于是就产生了以iPhone5s为根基的代码自动布局后续版本全适配.

(2)关键代码段

AppDelegate.h

 1 #import <UIKit/UIKit.h>
 2
 3 @interface AppDelegate : UIResponder <UIApplicationDelegate>
 4
 5 @property (strong, nonatomic) UIWindow *window;
 6
 7 @property float autoSizeScaleX;
 8 @property float autoSizeScaleY;
 9
10 + (void)storyBoradAutoLay:(UIView *)allView;
11 @end

 1 #define ScreenHeight ([[UIScreen mainScreen] bounds].size.height)
 2
 3 #define ScreenWidth ([[UIScreen mainScreen] bounds].size.width)
 4
 5 #import "AppDelegate.h"
 6
 7 @interface AppDelegate ()
 8
 9 @end
10
11 @implementation AppDelegate
12 //此处的类方法实现需要注意,如果当前的view层次结构比较复杂,则应该多嵌套几次循环
13 + (void)storyBoradAutoLay:(UIView *)allView
14 {
15     for (UIView *temp in allView.subviews) {
16         temp.frame = CGRectMake1(temp.frame.origin.x, temp.frame.origin.y, temp.frame.size.width, temp.frame.size.height);
17         for (UIView *temp1 in temp.subviews) {
18             temp1.frame = CGRectMake1(temp1.frame.origin.x, temp1.frame.origin.y, temp1.frame.size.width, temp1.frame.size.height);
19         }
20     }
21 }
22
23 CG_INLINE CGRect
24 CGRectMake1(CGFloat x, CGFloat y, CGFloat width, CGFloat height)
25 {
26     AppDelegate *myDelegate = [[UIApplication sharedApplication] delegate];
27     CGRect rect;
28     rect.origin.x = x * myDelegate.autoSizeScaleX; rect.origin.y = y * myDelegate.autoSizeScaleY;
29     rect.size.width = width * myDelegate.autoSizeScaleX; rect.size.height = height * myDelegate.autoSizeScaleY;
30     return rect;
31 }
32
33 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
34     // Override point for customization after application launch.
35
36     AppDelegate *myDelegate = [[UIApplication sharedApplication] delegate];
37
38         myDelegate.autoSizeScaleX = ScreenWidth/320;
39         myDelegate.autoSizeScaleY = ScreenHeight/568;
40
41
42     return YES;
43 }

(3)使用时只要在有需求的.m文件导入Appdelegate.h,引用storyBoradAutoLay:类方法即可

    [AppDelegate storyBoradAutoLay:self.view];