@synthesize imageview;
cgfloat lastscalefactor=1;//放大、縮小
cgfloat netrotation;//旋轉
cgpoint nettranslation;//平衡
nsarray *images;//陣列
int imageindex=0;//陣列下標
- (void)viewdidload
//雙擊螢幕時會呼叫此方法,放大和縮小
-(ibaction)handletapgesture:(uigesturerecognizer*)senderelse
}//捏的手勢，使放大和縮小，捏的動作是乙個連續的動作
-(ibaction)handlepinchgesture:(uigesturerecognizer*)senderelse
//狀態是否結束，如果結束儲存資料
if(sender.state==uigesturerecognizerstateended)else}}
//旋轉手勢
-(ibaction)handlerotategesture:(uigesturerecognizer*)sender
}//拖手勢
-(ibaction)handlepangesture:(uigesturerecognizer*)sender
}//划動手勢
-(ibaction)handleswipegesture:(uigesturerecognizer*)sender
//得到不越界不<0的下標
imageindex=(imageindex<0)?([images count]-1):imageindex%[images count];
//imageview顯示
imageview.image=[uiimage imagenamed:[images objectatindex:imageindex]];
}//長按手勢
-(ibaction)handlelongpressgesture:(uigesturerecognizer*)sender
-(void)dealloc
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
[**] 乙個手指，拍擊兩次手勢
uitapgesturerecognizer *onefingertwotaps =
[[[uitapgesturerecognizer alloc] initwithtarget:self action:@selector(onefingertwotaps)] autorelease];
// set required taps and number of touches
[onefingertwotaps setnumberoftapsrequired:2];
[onefingertwotaps setnumberoftouchesrequired:1];
// add the gesture to the view
[[self.view] addgesturerecognizer:onefingertwotaps];
//訊息方法onefingertwotaps
- (void)onefingertwotaps
[**] 2個手指，拍擊兩次手勢
uitapgesturerecognizer *twofingerstwotaps =
[[[uitapgesturerecognizer alloc] initwithtarget:self action:@selector(twofingerstwotaps)] autorelease];
[twofingerstwotaps setnumberoftapsrequired:2];
[twofingerstwotaps setnumberoftouchesrequired:2];
[[self view] addgesturerecognizer:twofingerstwotaps];
// 向上滑動
uiswipegesturerecognizer *onefingerswipeup =
[[[uiswipegesturerecognizer alloc] initwithtarget:self action:@selector(onefingerswipeup:)] autorelease];
[onefingerswipeup setdirection:uiswipegesturerecognizerdirectionup];
[[self view] addgesturerecognizer:onefingerswipeup];
- (void)onefingerswipeup:(uiswipegesturerecognizer *)recognizer
// 向下滑動
uiswipegesturerecognizer *onefingerswipedown =
[[[uiswipegesturerecognizer alloc] initwithtarget:self action:@selector(onefingerswipedown:)] autorelease];
[onefingerswipedown setdirection:uiswipegesturerecognizerdirectiondown];
[[self view] addgesturerecognizer:onefingerswipedown];
- (void)onefingerswipedown:(uiswipegesturerecognizer *)recognizer
[**] 2個手指，旋轉 （這個還沒怎麼理解，與捏合有什麼區別）
uirotationgesturerecognizer *twofingersrotate =
[[[uirotationgesturerecognizer alloc] initwithtarget:self action:@selector(twofingersrotate:)] autorelease];
[[self view] addgesturerecognizer:twofingersrotate];
- (void)twofingersrotate:(uirotationgesturerecognizer *)recognizer
[**] 2個手指，捏合
uipinchgesturerecognizer *twofingerpinch =
[[[uipinchgesturerecognizer alloc] initwithtarget:self action:@selector(twofingerpinch:)] autorelease];
[[self view] addgesturerecognizer:twofingerpinch];
- (void)twofingerpinch:(uipinchgesturerecognizer *)recognizer
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