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左右presentViewController经background黑问题
ShareVC *share = [[ShareVC alloc] init]; [self presentViewController:share animated:YES completion:nil ; } ————————————————————————–2014.09.26 再次编辑 —————————————————————— 假设你不想用动画来实现 present 的效果，能够设置 presentViewController imagePickerCtrl.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [appViews.rootViewController presentViewController
68020编辑于 2022-07-06 - 来自专栏编程语言
iOS 无弹框换图标，直接用就可以了
NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ [self exchangealterMethod]; }); } + (void)dy_presentViewController alertController.message == nil) { return; } else { [self dy_presentViewController viewControllerToPresent animated:flag completion:completion]; return; } } [self dy_presentViewController exchangealterMethod{ Method presentM = class_getInstanceMethod(UIViewController.class, @selector(presentViewController animated:completion:)); Method presentSwizzlingM = class_getInstanceMethod(self.class, @selector(dy_presentViewController
1K10发布于 2018-08-03 - 来自专栏编程语言
iOS 无弹框换图标，直接用就可以了
NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ [self exchangealterMethod]; }); } - (void)dy_presentViewController alertController.message == nil) { return; } else { [self dy_presentViewController viewControllerToPresent animated:flag completion:completion]; return; } } [self dy_presentViewController exchangealterMethod{ Method presentM = class_getInstanceMethod(UIViewController.class, @selector(presentViewController animated:completion:)); Method presentSwizzlingM = class_getInstanceMethod(self.class, @selector(dy_presentViewController
60220发布于 2018-08-03 - 来自专栏Scott_Mr 个人专栏
自定义转场详解(一)
就像这样： 我们先做好点击ViewController上面的按钮，present出 PresentViewController，点击PresentViewController上面的按钮，dismiss 掉PresentViewController的逻辑。 首先我们在PresentViewController控制器中申明一个代理方法。 #import <UIKit/UIKit.h> @class PresentViewController; @protocol PresentViewControllerDelegate <NSObject> - (void)dismissViewController:(PresentViewController *)viewController; @end @
1.3K60发布于 2018-05-16 - 来自专栏Scott_Mr 个人专栏
自定义转场详解(一)
就像这样： 我们先做好点击ViewController上面的按钮，present出 PresentViewController，点击PresentViewController上面的按钮，dismiss 掉PresentViewController的逻辑。 首先我们在PresentViewController控制器中申明一个代理方法。 #import <UIKit/UIKit.h> @class PresentViewController; @protocol PresentViewControllerDelegate <NSObject> - (void)dismissViewController:(PresentViewController *)viewController; @end @
1.3K20发布于 2018-07-05 - 来自专栏工程师的分享
跟iOS UI的捉迷藏，真的能够获取到self.presentingViewController
近期，在做一个有趣的实验，研究presentViewController和dismissViewController的对应关系，这里发现了一个有趣的现象，通常情况下，两者配对使用，如果连续两次presentViewController ViewController Programming Guide中关于Presenting a View Controller的部分是这样说的 The view controller that calls the presentViewController 也就是说，在调用presentViewController:animated:completion:方法时，真正作为跳转的容器并不一定是调用这个方法的view controller，而是取决于modalPresentationStyle ://www.jianshu.com/p/6b79cf270796 https://www.jianshu.com/p/0a27dc2028e3 拓展知识： 事实上，还有一个问题没有解决，如果连续两次presentViewController 加入了通知等响应性的内容时，很难保证不出现这样的情况，而一旦第二个无法加载成功，则会开发同学产生很深的困扰，也会把难以预期的UIBug暴漏给用户 事实上，设置了上文的两个属性后，再连续加载，你会发现连续两次presentViewController
97720编辑于 2022-08-02 - 来自专栏ppppy_oschina
iOS 调用系统相机和选择相册照片
picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; [self presentViewController } camera.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto; [self presentViewController addAction:sureAction]; [alert addAction:cancelAction]; [alert addAction:cameraAction]; [self presentViewController
1.4K20编辑于 2022-11-15 - 来自专栏iOS逆向与安全
iOS小技能：下拉刷新控件的适配
UIModalPresentationOverFullScreen 灵活控制模态展示的视图样式 iOS13适配【灵活控制模态展示的视图样式】（全屏/下滑返回）文中提供完整demo源码 全局hook presentViewController ERPPresent13) + (void)load { Method originAddObserverMethod = class_getInstanceMethod(self, @selector(presentViewController animated:completion:)); Method swizzledAddObserverMethod = class_getInstanceMethod(self, @selector(K_presentViewController self isKindOfClass:[UIAlertController class]]) { return NO; } return YES; } - (void)K_presentViewController viewControllerToPresent.modalPresentationStyle = UIModalPresentationFullScreen; } [self K_presentViewController
1.3K30编辑于 2022-08-22 - 来自专栏韦弦的偶尔分享
UIViewController初始化没有 init 导致的 Bug
completion:] + 3553 15 UIKitCore 0x00007fff46b1180b __63-[UIViewController _presentViewController animated:] + 511 17 UIKitCore 0x00007fff46b11769 -[UIViewController _presentViewController completion:] + 187 18 UIKitCore 0x00007fff46b119d0 -[UIViewController presentViewController 所以我改的modal代码： [self presentViewController:[NewViewController alloc] animated:YES completion:nil]; 真的是疯了 最后才看到，没有 init [self presentViewController:[[NewViewController alloc] init] animated:YES completion:nil
2.9K30发布于 2019-11-11 - 来自专栏月亮与二进制
iOS10.3后允许App运行中变更App图标
去掉变更图标时的提示框 这个提示框是用 UIAlertController 来实现的，而所有的 UIAlertController 都是通过 presentViewController: animated 要拦截系统方法，我们使用runtime中的方法交换技术，实现一个自己的 presentViewController: animated: completion: 方法，在自己的方法中，判断要弹出的 UIAlertController dispatch_once(&onceToken, ^{ Method presentM = class_getInstanceMethod(self.class, @selector(presentViewController :completion:)); Method presentSwizzlingM = class_getInstanceMethod(self.class, @selector(ox_presentViewController method_exchangeImplementations(presentM, presentSwizzlingM); }); } // 自己的替换展示弹出框的方法 - (void)ox_presentViewController
1.3K20发布于 2021-11-23 - 来自专栏TechBox
从相册中选择或拍照设置并上传头像图片设置头像
picker.allowsEditing = YES; picker.sourceType = sourceType; [self presentViewController pickerVC.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; [self presentViewController ]; [alertController addAction:action2]; [alertController addAction:action3]; [self presentViewController
7.1K30发布于 2018-06-05 - 来自专栏LeeCen
【iOS学习】——手势识别
handler:nil]; [alertController addAction:sure]; [self presentViewController handler:nil]; [alertController addAction:sure]; [self presentViewController self; //选择后的图片可以被编辑 picker.allowsEditing = YES; [self presentViewController picker.delegate = self; picker.allowsEditing = YES; [self presentViewController completion:nil]; }]; [alertController addAction:turnonCamer]; [self presentViewController
2.4K10发布于 2018-10-11 - 来自专栏APP自动化测试
iOS实现视频和图片的上传
self.imagePicker.allowsEditing = YES; [self presentViewController alertController addAction:cameraAction]; [alertController addAction:cancelAction]; [self presentViewController self.imagePicker.allowsEditing = NO; [self presentViewController self.imagePicker.allowsEditing = YES; [self presentViewController alertController addAction:cameraAction]; [alertController addAction:cancelAction]; [self presentViewController
2.6K71发布于 2019-10-15 - 来自专栏谈补锅
This application is modifying the autolayout engine from a background thread, which can lead to engi
setPresentationController:] + 117 25 UIKit 0x00a5a1c6 -[UIViewController _presentViewController interactionController:completion:] + 1503 26 UIKit 0x00a5c143 -[UIViewController _presentViewController withAnimationController:completion:] + 5297 27 UIKit 0x00a5f34b __62-[UIViewController presentViewController setPresentationController:] + 117 26 UIKit 0x00a5a1c6 -[UIViewController _presentViewController interactionController:completion:] + 1503 27 UIKit 0x00a5c143 -[UIViewController _presentViewController
1.7K30发布于 2018-09-27 - 来自专栏macOS 开发学习
Mac开发跬步积累(二):NSViewController 转场动画精耕细作
Popover的形式弹出新的ViewController open func presentViewController(_ viewController: NSViewController, transition 在上面的系统提供的NSViewController四个方法中,可以分为present和transition两种方式: presentXXX: 所有的present方式都是通过调用 presentViewController 以Popover方式弹出控制器 presentViewController(greenVC, asPopoverRelativeTo: sender.bounds, of: sender (of viewController: NSViewController, from fromViewController: NSViewController) } 在需要执行Present的地方调用presentViewController viewController.view.removeFromSuperview() } } } 示例效果: 自定义present 动画效果 Summary(总结) 在macOS中,控制器的转场切换无论是presentViewController
3.4K40发布于 2018-08-23 - 来自专栏iOS开发随笔
WKWebView不显示JS的Alert,Confirm,TextInput弹框解决方法
Nonnull action) { completionHandler(); }]; [alertController addAction:action]; [self presentViewController alertController addAction:cancelAction]; [alertController addAction:confirmAction]; [self presentViewController : @""); }]; [alertController addAction:action]; [self presentViewController:alertController
7.8K30发布于 2018-07-04 - 来自专栏向治洪
如何优雅的动态修改app 图标
dispatch_once(&onceToken, ^{ Method presentM = class_getInstanceMethod(self.class, @selector(presentViewController :completion:)); Method presentSwizzlingM = class_getInstanceMethod(self.class, @selector(lq_presentViewController completion:)); method_exchangeImplementations(presentM, presentSwizzlingM); }); } - (void)lq_presentViewController alertController.title == nil && alertController.message == nil) { return; } } [self lq_presentViewController
2.2K20编辑于 2022-11-30 - 来自专栏代码小技巧分享分析
iOS调用相册和摄像头
UIImagePickerControllerSourceTypeCamera; imagePicker.delegate = self; // 编辑模式 imagePicker.allowsEditing = YES; [self presentViewController imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; imagePicker.delegate = self; [self presentViewController
2.1K10发布于 2021-10-29 - 来自专栏TechBox
UIAlertView、UIActionSheet、UIAlertController使用
actionSheetController addAction:commentAction]; [actionSheetController addAction:showAllInfoAction]; [self presentViewController actionSheetController addAction:commentAction]; [actionSheetController addAction:showAllInfoAction]; [self presentViewController actionSheetController addAction:determineAction]; [actionSheetController addAction:cancelAction]; [self presentViewController actionSheetController addAction:determineAction]; [actionSheetController addAction:cancelAction]; [self presentViewController
6.6K30发布于 2018-06-05 - 来自专栏娱乐心理测试
UIImagePickerController的中文界面和改变statusBar的颜色
self.pickerViewController.sourceType = UIImagePickerControllerSourceTypeCamera; [self presentViewController self.pickerViewController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; [self presentViewController addAction:cameraAction]; [alertC addAction:photoAction]; [alertC addAction:cancelAction]; [self presentViewController
2.4K40发布于 2018-06-04
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