輕量級應用開發之（11）手勢

ios開發中手勢識別有六種：

輕擊手勢（tapgesturerecognizer）,

輕掃手勢 （swipegesturerecognizer）,

長按手勢（longpressgesturerecognizer）,

拖動手勢（pangesturerecognizer）,

捏合手勢（pinchgesturerecognizer）,

旋轉手勢（rotationgesturerecognizer）,

uitapgesturerecognizer *tapgesture =[[uitapgesturerecognizer alloc] initwithtarget:self action:@selector(tapgesture:)];

tapgesture.numberoftapsrequired = 1; //
點選次數
tapgesture.numberoftouchesrequired = 1; //
點選手指數
[self.view addgesturerecognizer:tapgesture];
//輕擊手勢觸發方法
-(void)tapgesture:(uitapgesturerecognizer *)sender

//設定長按時間

longpressgesture.minimumpressduration = 0.5

;[self.view addgesturerecognizer:longpressgesture];

//長按手勢觸發方法

-(void

)longpressgesture:(id)sender

}

說明：長按手勢的常用狀態如下

開始：uigesturerecognizerstatebegan
改變：uigesturerecognizerstatechanged
結束：uigesturerecognizerstateended
取消：uigesturerecognizerstatecancelled
失敗：uigesturerecognizerstatefailed

uiswipegesturerecognizer *swipegesture =[[uiswipegesturerecognizer alloc] initwithtarget:self action:@selector(swipegesture:)];

//設定輕掃的方向
swipegesture.direction = uiswipegesturerecognizerdirectionright; //
向右[self.view addgesturerecognizer:swipegesture];
uiswipegesturerecognizer *swipegestureleft =[[uiswipegesturerecognizer alloc] initwithtarget:self action:@selector(swipegesture:)];
//設定輕掃的方向
swipegestureleft.direction = uiswipegesturerecognizerdirectionleft; //
向左[self.view addgesturerecognizer:swipegestureleft];
//輕掃手勢觸發方法
-(void
)swipegesture:(id)sender
if (swipe.direction ==uiswipegesturerecognizerdirectionright)
}

uipinchgesturerecognizer *pinchgesture =[[uipinchgesturerecognizer alloc] initwithtarget:self action:@selector(pinchgesture:)];

[self.view addgesturerecognizer:pinchgesture];
////捏合手勢觸發方法
-(void
) pinchgesture:(id)sender
//結束後恢復
if(gesture.state==uigesturerecognizerstateended)];}
}

uipangesturerecognizer *pangesture =[[uipangesturerecognizer alloc] initwithtarget:self action:@selector(pangesture:)];

[self.view addgesturerecognizer:pangesture];
//拖動手勢觸發方法
-(void
) pangesture:(id)sender

uirotationgesturerecognizer *rotationgesture =[[uirotationgesturerecognizer alloc] initwithtarget:self action:@selector(rotationgesture:)];

[self.view addgesturerecognizer:rotationgesture];
//旋轉手勢觸發方法
-(void
)rotationgesture:(id)sender
if(gesture.state==uigesturerecognizerstateended)];}
}

1、 xcode 分屏

commond + option + 回車

輕量級B S應用開發引擎 NoahWeb

同事介紹，說一款bs開發引擎比較強大，處理表單之類的比較不錯，今天找來看看。幫助 http docs.noahweb.noahweb是一套b s輕量級快速開發引擎。解決b s專案開發過程中有關專案設計 後期維護 應用程式安全 需求變更等方面的瓶頸。傳說，天神為了懲罰人類，決定毀滅世間一切。諾亞方舟承...

輕量級爬蟲開發（二）

二 簡單爬蟲架構 動態執行流程 三 url管理器 管理待抓取url集合和已抓取的url集合 目的在於 防止重複和迴圈抓取。url之間往往迴圈指向的，如果不對url進行管理，爬蟲就會不斷的抓取這些url，最糟糕的情況兩個url互相指向，則我們將不停的抓取這兩個url管理器，形成死迴圈。功能 url管理...

python 輕量級爬蟲開發2

urllib2 python官方基礎模組 request 第三方包更強大 url urllib2.urlopen url coding utf 8 import urllib2 直接請求 response urllib2.urlopen 獲取狀態碼 print response.getcode 讀取...