#import "ViewController.h"@interface ViewController ()@property (nonatomic,retain)UIImageView *imageView; @property (nonatomic,assign)NSInteger index;//下標 @property (nonatomic,retain)NSMutableArray *images;//圖片名 字數組@end@implementation ViewController #加載視圖-(void)viewDidLoad {[super viewDidLoad]; //布局imageView [self layoutImageView]; //1.創建輕拍手勢 [self tapGestureRecognizer]; //2.創建清掃手勢 [self swipeGestureRecognizer]; //3.創建長安手勢 [self longPressGestureRecognizer]; //4.創建平移手勢 [self panGestureTecognizer]; //5.創建捏合手勢 [self pinchGestureRecognizer]; //6.創建 旋轉手勢 [self rotationGestureRecognizer] //7.創建邊緣手勢 [self screenEdgePanGestureRecognizer]; }

##布局ImageView-(void)layoutImageView {//創建對象 UIImageView *imageView =[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 375, 667)]; //配置屬性 imageView.backgroundColor =[UIColor purpleColor]; //設置圖片 imageView.image =[UIImage imageNamed:@"car1.jpg"]; //添加父視圖 [self.view addSubview:imageView]; //將創建的圖片視圖對象 給屬性賦值 self.imageView =imageView； //打開用戶交互 self.imageView.userInteractionEnabled =YES; self.images =[NSMutableArray array]; for (int i = 1; i<9; i++) {NSString * imageName =[NSString stringWithFormat:@"car%d.jpg",i];[_images addObject:imageName]; } // _index =1;}#pragma 輕怕手勢 //創建輕拍手勢 -(void)tapGestureRecognizer {//創建手勢對象 UITapGestureRecognizer *tap =[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction:)]; //配置屬性 //輕拍次數 tap.numberOfTapsRequired =1; //輕拍手指個數 tap.numberOfTouchesRequired =1; //講手勢添加到指定的視圖上 [_imageView addGestureRecognizer:tap];}//輕拍事件-(void)tapAction:(UITapGestureRecognizer *)tap {//圖片切換 NSLog(@"拍一下"); _index ++; if (_index == 8) {_index = 1; } self.imageView.image =[UIImage imageNamed:_images[_index]];} #pragma 清掃手勢//清掃手勢 -(void)swipeGestureRecognizer {UISwipeGestureRecognizer *swipe =[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeAction:)]; //配置屬性 //一個清掃手勢 只能有兩個方向(上和下) 或者 (左或右) //如果想支持上下左右清掃 那么一個手勢不能實現 需要創建兩個手勢 swipe.direction =UISwipeGestureRecognizerDirectionLeft; //添加到指定視圖 [_imageView addGestureRecognizer:swipe]; UISwipeGestureRecognizer *swipe2 =[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeAction:)]; swipe2.direction =UISwipeGestureRecognizerDirectionRight; [_imageView addGestureRecognizer:swipe2];} //清掃事件 -(void)swipeAction:(UISwipeGestureRecognizer *)swipe {NSLog(@"掃一下"); if (swipe.direction ==UISwipeGestureRecognizerDirectionRight) {NSLog(@"右清掃");_index --;if (_index < 1) {_index =7;}_imageView.image =[UIImage imageNamed:_images[_index]]; }else if(swipe.direction == UISwipeGestureRecognizerDirectionLeft){NSLog(@"左掃一下");_index ++;if (_index == 8) {_index=1;}_imageView.image =[UIImage imageNamed:_images[_index]]; }} #pragma 長按手勢 //創建長按手勢 -(void)longPressGestureRecognizer {UILongPressGestureRecognizer *longPress =[[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPressAction:)]; //最短長按時間 longPress.minimumPressDuration =2; //允許移動最大距離 longPress.allowableMovement =1; //添加到指定視圖 [_imageView addGestureRecognizer:longPress];} //長按事件 -(void)longPressAction:(UILongPressGestureRecognizer *)longPress {//NSLog(@"長按"); //對于長安有開始和 結束狀態 if (longPress.state == UIGestureRecognizerStateBegan) {NSLog(@"長按開始");//將圖片保存到相冊UIImage *image =[UIImage imageNamed:_images[_index]];UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil); }else if (longPress.state == UIGestureRecognizerStateEnded) {NSLog(@"長按結束"); }}#pragma 平移手勢 //創建平移手勢 -(void)panGestureTecognizer {UIPanGestureRecognizer *pan =[[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(panAction:)]; //添加到指定視圖 [_imageView addGestureRecognizer:pan];} //創建平移事件 -(void)panAction:(UIPanGestureRecognizer *)pan {//獲取手勢的位置 CGPoint position =[pan translationInView:_imageView];//通過stransform 進行平移交換 _imageView.transform = CGAffineTransformTranslate(_imageView.transform, position.x, position.y); //將增量置為零 [pan setTranslation:CGPointZero inView:_imageView];}#pragma 捏合手勢 -(void)pinchGestureRecognizer {UIPinchGestureRecognizer *pinch =[[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector(pinchAction:)]; //添加到指定視圖 [_imageView addGestureRecognizer:pinch];} //添加捏合事件 -(void)pinchAction:(UIPinchGestureRecognizer *)pinch {//通過 transform(改變) 進行視圖的視圖的捏合 _imageView.transform =CGAffineTransformScale(_imageView.transform, pinch.scale, pinch.scale); //設置比例 為 1 pinch.scale = 1;} #pragma 旋轉手勢//創建旋轉手勢 -(void)rotationGestureRecognizer {UIRotationGestureRecognizer *rotation =[[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(rotationAction:)]; //添加到指定的視圖 [_imageView addGestureRecognizer:rotation];} //旋轉事件-(void)rotationAction:(UIRotationGestureRecognizer *)rote {//通過transform 進行旋轉變換 _imageView.transform = CGAffineTransformRotate(_imageView.transform, rote.rotation); //將旋轉角度 置為 0 rote.rotation = 0;} #pragma 邊緣手勢//創建邊緣手勢 -(void)screenEdgePanGestureRecognizer {UIScreenEdgePanGestureRecognizer *screenPan = [[UIScreenEdgePanGestureRecognizer alloc]initWithTarget:self action:@selector(screenPanAction:)]; [_imageView addGestureRecognizer:screenPan];} //創建邊緣事件 -(void)screenPanAction:(UIScreenEdgePanGestureRecognizer *)screenPan {NSLog(@"邊緣");}- (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. }@end }

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