从本机代码调用Javascript函数（iOS） [英] Calling Javascript function from native code (iOS)

问题描述

这是我的故事板。我使用SWRevealViewController插件在cordova应用程序中的侧边菜单。添加了主视图控制器作为最后视图控制器（在nav-bar中有项目）的类引用。

This is my Story Board. I have used SWRevealViewController plugin for my side menu in cordova application. Added "Main View Controller" as class reference to the Last view controller(having item in nav-bar) .

在我的cordova视图上从左到右滑动将显示侧窗。点击我在

On swiping from left to right on my cordova view will reveal Sidemenu. On click I'm saving selected row value in

 -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    // menuItems is an array using which I'm populating the sidemenu
    NSString *  str = [menuItems objectAtIndex:indexPath.row];
}

我只想将此值传递给javascript函数。

I just want to pass this value to the javascript function.

在index.html中定义我的javascript函数

Defined my javascript function in index.html

    <script >
    (function () {
     window.execute = function () {
     alert(" machi");
     var el = document.getElementById('search');
     var scope = angular.element(el).scope();
     scope.$apply(function() {
                  scope.execute();
                  });

     }
     })();
    </script>

    calling this function using
      NSString *jsCommand = [NSString stringWithFormat:@"execute()"];
    [self.webView stringByEvaluatingJavaScriptFromString:jsCommand];

推荐答案

尝试将您的本机代码更改为：

Try to change your native code to:

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    // menuItems is an array using which I'm populating the sidemenu
    NSString *  str = [menuItems objectAtIndex:indexPath.row];
    NSString *jsCommand = [NSString stringWithFormat:@"execute('%@')", str];
    [self.webView stringByEvaluatingJavaScriptFromString:jsCommand];
}

您的javascript函数声明：

And your javascript function declaration to:

 window.execute = function (str) {...}

您将在 str 函数参数中找到传递的值。

You will find your passed value into str function parameter.

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