IOS7、8模态半透明弹出框

最新推荐文章于 2025-05-02 00:00:00 发布

喝醉的毛毛虫

最新推荐文章于 2025-05-02 00:00:00 发布

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分类专栏： iPhone

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本文将介绍如何在iOS应用中使用MKDialogController类来创建自定义模态对话框，并通过不同的系统版本来调整对话框的呈现方式，包括设置过渡效果、提供上下文转换样式等特性。同时，文章还将展示如何为视图背景添加透明度以增强用户体验。

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           //源Controller中跳转方法实现
            MKDialogController *controller = [[MKDialogController alloc] init];
            controller.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
            if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0) {
                controller.providesPresentationContextTransitionStyle = YES;
                controller.definesPresentationContext = YES;
                controller.modalPresentationStyle = UIModalPresentationOverCurrentContext;
                [self presentViewController:controller animated:YES completion:nil];
            } else {
                self.view.window.rootViewController.modalPresentationStyle = UIModalPresentationCurrentContext;
                [self presentViewController:controller animated:NO completion:nil];
                self.view.window.rootViewController.modalPresentationStyle = UIModalPresentationFullScreen;
            }

    self.view.backgroundColor = [UIColor clearColor];
    UIView *alphaView = [[UIView alloc] initWithFrame:self.view.frame];
    UIView *baseView = [[UIView alloc] initWithFrame:self.view.frame];
    alphaView.backgroundColor = [UIColor clearColor];
    baseView.backgroundColor = [UIColor blackColor];
    baseView.alpha = 0.7;
    [self.view addSubview:baseView];
    [self.view addSubview:alphaView];