UIWebView 實現翻頁功能

UIWebView倒是經常用，不過翻頁功能沒用過，因為還沒寫過電子書之類的應用，最近心血來潮寫了個電子書的框架，這樣就可以量產電子書應用了，哈哈。可是要實現翻頁功能時發現UIwebView竟然接收不了touch事件，老郁悶了。網上有大牛的hack方法，不過審核貌似通不過。組后發現蘋果官方給我們提供了專門的api，通過 UISwipeGestureRecognizer 來實現。

直接上代碼吧：

    UISwipeGestureRecognizer  *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(previousPage)];

       swipeRight.direction=UISwipeGestureRecognizerDirectionRight;

       [webView addGestureRecognizer:swipeRight];

       [swipeRight release];


   UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(nextPage)];  
   swipeLeft.direction = UISwipeGestureRecognizerDirectionLeft;  
   [webView addGestureRecognizer:swipeLeft];  
   [swipeLeft release];  </pre>一看代碼應該就明白了。蘋果官方給我們的手勢有4個，分別對應上下左右：<pre class="brush:cpp; toolbar: true; auto-links: false;">typedef enum {
UISwipeGestureRecognizerDirectionRight = 1 << 0,
UISwipeGestureRecognizerDirectionLeft  = 1 << 1,
UISwipeGestureRecognizerDirectionUp    = 1 << 2,
UISwipeGestureRecognizerDirectionDown  = 1 << 3

} UISwipeGestureRecognizerDirection;</pre>來自：http://blog.csdn.net/iukey/article/details/7430984