transitionFromView方法的使用

 

效果

 

源码

////  ViewController.m//  TransitionFromView////  Created by YouXianMing on 16/5/30.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import "ViewController.h"typedef enum : NSUInteger {        kBottomView = 1000,    kTopView,    } EViewControllerTag;@interface ViewController () {    UIView *redView;    UIView *yellowView;    UIView *containerView;}@end@implementation ViewController- (void)viewDidLoad {        [super viewDidLoad];        // ContainerView    containerView         = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 350)];    containerView.center  = self.view.center;    [self.view addSubview:containerView];        // BottomView    redView                 = [[UIView alloc] initWithFrame:containerView.bounds];    redView.tag             = kBottomView;    redView.backgroundColor = [UIColor redColor];    [containerView addSubview:redView];        // TopView    yellowView                 = [[UIView alloc] initWithFrame:containerView.bounds];    yellowView.tag             = kTopView;    yellowView.backgroundColor = [UIColor yellowColor];    [containerView addSubview:yellowView];        // Button    UIButton *button = [[UIButton alloc] initWithFrame:self.view.bounds];    [button addTarget:self action:@selector(buttonEvent:) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:button];}- (void)buttonEvent:(UIButton *)button {        button.enabled = NO;        [UIView transitionFromView:[containerView viewWithTag:kTopView]                        toView:[containerView viewWithTag:kBottomView]                      duration:0.5f                       options:UIViewAnimationOptionTransitionFlipFromLeft                    completion:^(BOOL finished) {                                                button.enabled = YES;                                                if ([[containerView viewWithTag:kBottomView] isEqual:redView]) {                                                        [containerView insertSubview:yellowView belowSubview:redView];                            redView.tag    = kTopView;                            yellowView.tag = kBottomView;                                                    } else {                                                    [containerView insertSubview:redView belowSubview:yellowView];                            redView.tag    = kBottomView;                            yellowView.tag = kTopView;                        }                    }];}@end

 

细节