IOS從一個APP跳到另一個APP

以下為跳轉到大眾點評APP代碼如下：

NSString *requestUrlString = @"dianping://shopinfo?id=1000";        
NSURL *requestUrl = [NSURL URLWithString: requestUrlString];
        if([[UIApplication sharedApplication] canOpenURL:requestUrl]) {
            [[UIApplication sharedApplication] openURL:requestUrl];
        } else {
            //沒有安裝應用，默認打開HTML5站
            NSString *keywords = [@"吃飯飯" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
            requestUrl = [NSURL URLWithString:[NSString stringWithFormat:@"http://m.dianping.com/shoplist/219/search?from=m_search&keyword=%@",keywords]];
            [[UIApplication sharedApplication] openURL:requestUrl];
        }

 跳轉的過程中可能會出現ERROR：

error: "This app is not allowed to query for scheme dianping"

解決方法是在info.plist文件內添加以下配置項，將其列為白名單才可以正常檢查是否已經安裝此程序。

<key>LSApplicationQueriesSchemes</key>

<array>

        <string>weixin</string>

        <string>wechat</string>

        <string>dianping</string>

</array>