modal的樣式及 半透明控制器效果

modal出半透明的控制器：

    UIViewController * maskVC = [[UIViewController alloc] init];

    

    //設置頁面的透明度

    maskVC.view.backgroundColor = [UIColor colorWithFullRed:0 green:0 blue:0 alpha:0.4];

    if （[[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0） {

        maskVC.providesPresentationContextTransitionStyle = YES;

        maskVC.definesPresentationContext = YES;

        maskVC.modalPresentationStyle = UIModalPresentationOverCurrentContext;

        [self presentViewController:maskVC animated:YES completion:nil];

    } else {

        self.view.window.rootViewController.modalPresentationStyle = UIModalPresentationCurrentContext;

        [self presentViewController:maskVC animated:NO completion:nil];

        self.view.window.rootViewController.modalPresentationStyle = UIModalPresentationFullScreen;

    }

• 什麼叫呈現樣式
• Modal出來的控制器，最終顯示出來的樣子
• Modal常見有5種呈現樣式
• UIModalPresentationFullScreen ：全屏顯示（默認）
• UIModalPresentationPageSheet
• 寬度：豎屏時的寬度（768）
• 高度：當前屏幕的高度（填充整個高度）
• UIModalPresentationFormSheet ：佔據屏幕中間的一小塊
• UIModalPresentationCurrentContext ：跟隨父控制器的呈現樣式
• UIModalPresentationPopover:被popover包裝過的樣式
•  
•  
• 什麼叫過渡樣式
• Modal出來的控制器，是以怎樣的動畫呈現出來
• Modal一共4種過渡樣式
• UIModalTransitionStyleCoverVertical ：從底部往上鑽（默認）
• UIModalTransitionStyleFlipHorizontal ：三維翻轉
• UIModalTransitionStyleCrossDissolve ：淡入淡出
• UIModalTransitionStylePartialCurl ：翻頁（只顯示部分，使用前提：呈現樣式必須是UIModalPresentationFullScreen）
•  

 

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{

    

    UIViewController *vc = [[UIViewController alloc] init];

    vc.view.backgroundColor = [UIColor yellowColor];

    

    /*modal呈現樣式-->iPhone中不起做用

     UIModalPresentationFullScreen = 0,

     UIModalPresentationPageSheet NS_ENUM_AVAILABLE_IOS(3_2) __TVOS_PROHIBITED,

     UIModalPresentationFormSheet NS_ENUM_AVAILABLE_IOS(3_2) __TVOS_PROHIBITED,

     UIModalPresentationCurrentContext NS_ENUM_AVAILABLE_IOS(3_2),

     UIModalPresentationCustom NS_ENUM_AVAILABLE_IOS(7_0),

     UIModalPresentationOverFullScreen NS_ENUM_AVAILABLE_IOS(8_0),

     UIModalPresentationOverCurrentContext NS_ENUM_AVAILABLE_IOS(8_0),

     UIModalPresentationPopover NS_ENUM_AVAILABLE_IOS(8_0) __TVOS_PROHIBITED,

     UIModalPresentationNone NS_ENUM_AVAILABLE_IOS(7_0) = -1,

     */

    vc.modalPresentationStyle = UIModalPresentationFormSheet;//呈現樣式

    

    

    /*modal的過渡樣式

     UIModalTransitionStyleCoverVertical = 0,

     UIModalTransitionStyleFlipHorizontal __TVOS_PROHIBITED,

     UIModalTransitionStyleCrossDissolve,

     UIModalTransitionStylePartialCurl

     */

    vc.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;

    [self presentViewController:vc animated:YES completion:nil];

    

}