单视图转场动画
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[UIView transitionWithView:self.imageview duration:1.0f options:UIViewAnimationOptionTransitionFlipFromLeft animations:^{
// 这里只要设置视图翻转之后的内容就行。
self.imageview.tag = (self.imageview.tag + 1)%self.imagelist.count;
[self.imageview setImage:self.imagelist[self.imageview.tag]];
} completion:^(BOOL finished) {
NSLog(@"动画完成");
}];
}
多视图转场动画，多视图转场动画里，被转出的视图的superview被设置为空，这时候视图会被释放。所以应该在定义成员变量的时候设置位强引用，用strong.否者因为没有对象使用子视图，子视图会被释放。
//
// MainViewController.m
// 双视图翻转动画
//
// Created by mac on 13-10-1.
// Copyright (c) 2013年 mac. All rights reserved.
//
#import "MainViewController.h"
@interface MainViewController ()
@property (nonatomic,strong) UIView *subview1;
@property (nonatomic,strong) UIView *subview2;
@end
@implementation MainViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
UIView *view1 = [[UIView alloc] initWithFrame:self.view.bounds];
[view1 setBackgroundColor:[UIColor redColor]];
[self.view addSubview:view1];
self.subview1 = view1;
UIView *view2 = [[UIView alloc] initWithFrame:self.view.bounds];
[view2 setBackgroundColor:[UIColor blueColor]];
[self.view addSubview:view2];
self.subview2 = view2;
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UIView *fromview = nil;
UIView *toview = nil;
if (self.subview1.superview == nil) {
fromview = self.subview2;
toview = self.subview1;
} else {
fromview = self.subview1;
toview = self.subview2;
}
[UIView transitionFromView:fromview toView:toview duration:2.0f options:UIViewAnimationOptionTransitionFlipFromTop completion:^(BOOL finished) {
;
// 多视图转场的时候，转出视图的父视图会被释放
NSLog(@"subview1 redview's superview is %@",self.subview1.superview);
NSLog(@"subview2 blueview's superview is %@",self.subview2.superview);
}];
}
@end
