iOS 控件寬高字體大小適配方法

1.在AppDelegate.h裏面設置兩個方法：

- (CGFloat)autoScaleW:(CGFloat)w;

- (CGFloat)autoScaleH:(CGFloat)h;

2.在AppDelegate.m裏面設置兩個屬性：

//當前屏幕與設計尺寸(iPhone6)寬度比例
@property(nonatomic,assign)CGFloat autoSizeScaleW;

//當前屏幕與設計尺寸(iPhone6)高度比例

@property(nonatomic,assign)CGFloat autoSizeScaleH;

實現自定義方法- (void)initAutoScaleSize;

在- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions;中調用此方法

#pragma mark - ScaleSize

- (void)initAutoScaleSize{
   
    if (kScreenHeight==480) {
        //4s
        _autoSizeScaleW =kScreenWith/375;
        _autoSizeScaleH =kScreenHeight/667;
    }elseif(kScreenHeight==568) {
        //5
        _autoSizeScaleW =kScreenWith/375;
        _autoSizeScaleH =kScreenHeight/667;
    }elseif(kScreenHeight==667){
        //6
        _autoSizeScaleW =kScreenWith/375;
        _autoSizeScaleH =kScreenHeight/667;
    }elseif(kScreenHeight==736){
        //6p
        _autoSizeScaleW =kScreenWith/375;
        _autoSizeScaleH =kScreenHeight/667;
    }else{
        _autoSizeScaleW =1;
        _autoSizeScaleH =1;
    }

}

- (CGFloat)autoScaleW:(CGFloat)w{
   
    return w * self.autoSizeScaleW;
   
}

- (CGFloat)autoScaleH:(CGFloat)h{
   
    return h * self.autoSizeScaleH;
   

}

3.在pch文件中設置宏定義（別忘了在pch裏面引用AppDelegate.h文件哦，否則這個宏會報錯呢）

#define autoScaleW(width) [(AppDelegate *)[UIApplication sharedApplication].delegate autoScaleW:width]

#define autoScaleH(height) [(AppDelegate *)[UIApplication sharedApplication].delegate autoScaleH:height]

4.寫控件時設置字體大小：

[UIFontsystemFontOfSize:autoScaleW(14)]

設置frame：

CGRectMake(CGRectGetMaxX(self.productNameLabel.frame) + 10 , self.productNameLabel.top+3,autoScaleW(32),autoScaleW(17));