#import "viewcontroller.h"
@inte***ce viewcontroller ()
@property (nonatomic, strong) uiimageview *imageview;
@end
@implementation viewcontroller
@synthesize imageview = _imageview;
- (void)viewdidload
- (void)didreceivememorywarning
#pragma mark handle gestures methods
/* step5：去實現處理撲捉到手勢之後的動作 */
/* 識別單擊 */
- (void)handlesingletap:(uitapgesturerecognizer *)gesturerecognizer ];
}/* 識別雙擊 */
- (void)handledoubletap:(uitapgesturerecognizer *)gesturerecognizer ];
}/* 識別兩個手指擊 */
- (void)handletwofingertap:(uitapgesturerecognizer *)gesturerecognizer ];
}/* 識別側滑 */
- (void)handleswipe:(uiswipegesturerecognizer *)gesturerecognizer
else if (gesturerecognizer.direction == uiswipegesturerecognizerdirectionup)
else if (gesturerecognizer.direction == uiswipegesturerecognizerdirectiondown)
else
[uiview animatewithduration:0.5 animations:^];
}/* 識別翻轉 */
- (void)handlerotation:(uirotationgesturerecognizer *)gesturerecognizer ];
}}/* 識別拖動 */
- (void)handlepan:(uipangesturerecognizer *)gesturerecognizer
/* 識別放大縮小 */
- (void)handlepinch:(uipinchgesturerecognizer *)gesturerecognizer
/* 識別長按 */
- (void)handlelongpress:(uilongpressgesturerecognizer *)gesturerecognizer
#pragma mark -
#pragma mark drawing the image view
/* */
- (void)drawimageforgesturerecognizer:(uigesturerecognizer *)recognizer
atpoint:(cgpoint)centerpoint underadditionalsituation:(nsstring *)addtionalsituation
else if ([addtionalsituation isequaltostring:@"doubletap"])
else if ([addtionalsituation isequaltostring:@"twofingertap"])
else
}else if ([recognizer ismemberofclass:[uirotationgesturerecognizer class]])
else if ([recognizer ismemberofclass:[uiswipegesturerecognizer class]])
else if ([recognizer ismemberofclass:[uipinchgesturerecognizer class]])
else if ([recognizer ismemberofclass:[uipangesturerecognizer class]])
else if ([recognizer ismemberofclass:[uilongpressgesturerecognizer class]])
else
self.imageview.image = [uiimage imagenamed:imagename];
self.imageview.center = centerpoint;
self.imageview.alpha = 1.0;
}@end
iOS 手勢識別
首先給大家解釋一下為什麼要學習手勢識別？如果想監聽乙個uiview上面的觸控事件，之前的做法是 自定義乙個uiview 實現uiview的touches方法，在方法裡面實現具體功能 透過touches監聽uiview的觸控事件，有很明顯的幾個缺點 1.必須要自定義uiview，2.由於是在view內...
iOS手勢識別初探
uigesturerecognizerstate的定義如下 typedef ns enum nsinteger,uigesturerecognizerstate uigesturerecognizerstatepossible 預設狀態，手勢識別器尚未識別出手勢，但是可能已經在處理觸屏事件了。uig...
iOS 手勢識別器概述
其相應的方法 initwithtarget action addtarget action removetarget action locationinview locationoftouch inview numberoftouches屬性 requiregesturerecognizertofa...