IOS 轉場動畫 -CATransition

//

//  ViewController.m

//  轉場動畫-CATransition

//

//  Created by dc008 on 15/12/22.

//  Copyright © 2015年 崔曉宇. All rights reserved.

//

#import "ViewController.h"

#define IMAGE_COUNT 10//圖片數量

@interface ViewController ()

{

    UIImageView *_imageView;

    int _current;

}

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    

    _imageView = [[UIImageView alloc]initWithFrame:[[UIScreen mainScreen]bounds]];

    _imageView.contentMode = UIViewContentModeScaleAspectFill;

    _imageView.image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.jpg",_current]];

    [self.view addSubview:_imageView];

    

    //添加手勢

    UISwipeGestureRecognizer *leftSwipeGesure = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(leftSwipe:)];

    leftSwipeGesure.direction = UISwipeGestureRecognizerDirectionLeft;//設置手勢方向

    [self.view addGestureRecognizer:leftSwipeGesure];

    

    UISwipeGestureRecognizer *rightSwipeGesure = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(rightSwipe:)];

    rightSwipeGesure.direction = UISwipeGestureRecognizerDirectionRight;

    [self.view addGestureRecognizer:rightSwipeGesure];

}

- (void)rightSwipe : (UISwipeGestureRecognizer *)gesture{

    NSLog(@"向右滑動");

    [self transitionAnimation:YES];//YES表示下一張圖片

}

- (void)leftSwipe : (UISwipeGestureRecognizer *)gesture{

    NSLog(@"向左滑動");

    [self transitionAnimation:NO];//NO表示上一張圖片

}

#pragma mark 轉場動畫

- (void)transitionAnimation : (BOOL) isNext {

    //1.建立動畫對象

    CATransition *transition = [[CATransition alloc]init];

    //2.設置動畫類型,對於蘋果官方沒有公開的動畫類型只能使用字符串

    //cube                    立方體翻轉效果

    //oglFlip                 翻轉效果

    //suckEffect              收縮效果

    //rippleEffect            水滴波紋效果

    //pageCurl                向上翻頁效果

    //pageUnCurl              向下翻頁效果

    //cameralIrisHollowOpen   攝像頭打開效果

    //cameralIrisHollowClose  攝像頭關閉效果

    

   transition.type = @"cube";

   //設置子類型(轉場動畫從什麼方向)

    if (isNext) {

        transition.subtype = kCATransitionFromRight;

    }

    else{

        transition.subtype = kCATransitionFromLeft;

    }

    //設置動畫時間

    transition.duration = 1.0;

    

    //設置轉場後的新視圖

    if (isNext) {

        //下一張圖片

        _current = (_current + 1) % IMAGE_COUNT;

    }

    else{

        //上一張圖片

        _current = (_current - 1 + IMAGE_COUNT) % IMAGE_COUNT;

    }

    _imageView.image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.jpg",_current]];

    //添加動畫

    [_imageView.layer addAnimation:transition forKey:@"CXY"];

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end