iOS presentViewController 推出半屏幕透明 UIViewController

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iOS presentViewController 推出半屏幕透明 UIViewController

不废话，直接上代码

1.父页面打开方式

/**
 *  页面打开配置
 *
 *  @param sender <#sender description#>
 */
- (IBAction)shwoViewAction:(id)sender {
    
    TTViewController *tView = [[TTViewController alloc] init];
    //设置模式展示风格
    [tView setModalPresentationStyle:UIModalPresentationOverCurrentContext];
    //必要配置
    self.modalPresentationStyle = UIModalPresentationCurrentContext;
    self.providesPresentationContextTransitionStyle = YES;
    self.definesPresentationContext = YES;
    [self presentViewController:tView animated:YES completion:nil];
}

 2.子页面重写viewWillLayoutSubviews，设置位置宽高

#define DeviceHeight [[UIScreen mainScreen] bounds].size.height
#define DeviceWidth [[UIScreen mainScreen] bounds].size.width

/**
 *  设置位置宽高
 */
- (void)viewWillLayoutSubviews {
  
    self.view.frame = CGRectMake(self.view.frame.origin.x, DeviceHeight / 2, DeviceWidth, DeviceHeight / 2);
    //self.view.backgroundColor = [UIColor clearColor];
    //self.view.backgroundColor = [UIColor colorWithRed:1 green:0 blue:0 alpha:0.868f];
}

 打完收工。