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關于iOS6和iOS7的frame适配問題

在做iOS6和iOS7,以及3.5寸和4寸螢幕适配的時候遇到的frame的問題:

經過驗證在viewcontroller上的self.view的坐标在有無系統navigationbar時的變化:

mainScreen: 568  4英寸

                 iOS7.1  --------    無navigationbar: self.view(0,0,320,568)

                              --------    有navigationbar: self.view(0,0,320,568)    坐标是基于navigationbar下方開始計算

                 iOS6.1  --------    無navigationbar: self.view(0,20,320,548)

                              --------    有navigationbar: self.view(0,20,320,548)    坐标是基于navigationbar下方開始計算

mainScreen: 480  3.5英寸

                 iOS7.1  --------    無navigationbar: self.view(0,0,320,480)

                              --------    有navigationbar: self.view(0,0,320,480)    坐标是基于navigationbar下方開始計算

                 iOS6.1  --------    無navigationbar: self.view(0,20,320,460)

                              --------    有navigationbar: self.view(0,20,320,460)坐标是基于navigationbar下方開始計算

是以為了适配友善,應該在parentViewController裡面設定contentView,如下:

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.view.backgroundColor = [UIColor whiteColor];
    
    [self setNavgationBackground];
    [self addNavLeftButtonTitle:@"傳回"];
    
    backView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, mainScreenWidth, mainScreenHeight)];
    [self.view addSubview:backView];
    

    contentView = [[UIView alloc] initWithFrame:CGRectMake(0, knavigationHeight, 320, mainScreenHeight-ktabbarHeight-knavigationHeight)];
    [contentView setUserInteractionEnabled:YES];
    [contentView setBackgroundColor:[UIColor clearColor]];
    [backView addSubview:contentView];
    

    
}

           

#define kContentViewHeight mainScreenHeight-ktabbarHeight-knavigationHeight

#define kstatusBar (k_IS_IOS7?20:0)

#define ktabbarHeight (self.tabBarController.tabBar.hidden?0:45)

#define khasNavigationbar (self.navigationController.navigationBar.hidden?0:65)

#define knavigationHeight  (k_IS_IOS7?(khasNavigationbar?0:65):(khasNavigationbar?0:45))