多點(diǎn)觸控乃蘋果公司帶給世界的創(chuàng)新之首，作為移動(dòng)開發(fā)者，熟練掌握多點(diǎn)觸控開發(fā)技能很有必要。

處理觸摸的四個(gè)方法：

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event //首次在屏幕上檢測(cè)到觸摸時(shí)調(diào)用

{

NSLog(@"touchesBegan");

}-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event //如果觸摸移動(dòng)到了新的位置則會(huì)調(diào)用此方法

{

NSLog(@"touchesMoved");

}-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event //當(dāng)觸摸離開屏幕調(diào)用此方法

{

NSLog(@"touchesEnded");

}-(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event //如系統(tǒng)決定取消此次觸摸，那可能就不調(diào)用touchesEnded方法了，在這種情況下會(huì)調(diào)用touchesCancelled方法

{

NSLog(@"touchesCancelled");

}

快速點(diǎn)擊屏幕，Debug窗口顯示

2014-01-13 22:47:10.121 bbsTouch[593:70b] touchesBegan

2014-01-13 22:47:10.125 bbsTouch[593:70b] touchesEnded

2014-01-13 22:47:10.238 bbsTouch[593:70b] touchesBegan

2014-01-13 22:47:10.239 bbsTouch[593:70b] touchesEnded

2014-01-13 22:47:10.242 bbsTouch[593:70b] touchesBegan

2014-01-13 22:47:10.244 bbsTouch[593:70b] touchesEnded

點(diǎn)擊并在屏幕上拖動(dòng)，Debug窗口顯示

2014-01-13 22:48:44.148 bbsTouch[593:70b] touchesBegan

2014-01-13 22:48:44.163 bbsTouch[593:70b] touchesMoved

2014-01-13 22:48:44.195 bbsTouch[593:70b] touchesMoved

2014-01-13 22:48:44.211 bbsTouch[593:70b] touchesMoved

2014-01-13 22:48:44.229 bbsTouch[593:70b] touchesMoved

2014-01-13 22:48:44.249 bbsTouch[593:70b] touchesMoved

2014-01-13 22:48:44.281 bbsTouch[593:70b] touchesMoved

2014-01-13 22:48:44.314 bbsTouch[593:70b] touchesMoved

2014-01-13 22:48:44.330 bbsTouch[593:70b] touchesMoved

2014-01-13 22:48:44.347 bbsTouch[593:70b] touchesMoved

2014-01-13 22:48:44.821 bbsTouch[593:70b] touchesEnded

touchesMoved可能不會(huì)在觸摸隊(duì)列中產(chǎn)生，然而，touchesBegan事件之后，總會(huì)產(chǎn)生touchesEnded或touchesCancelled事件。

轉(zhuǎn)載請(qǐng)注明原著：http://www.cnblogs.com/marvindev

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