stringByEvaluatingJavaScriptFromString没有调用javascript函数 [英] stringByEvaluatingJavaScriptFromString not calling javascript function

问题描述

我正在研究手机缺口iOS应用程序.我需要将在 didRegisterForRemoteNotificationsWithDeviceToken 中收到的APNs令牌传递给我的Java脚本函数.

I am working on a phone gap iOS application. I need to pass the APNs token received in didRegisterForRemoteNotificationsWithDeviceToken to my java script function.

didRegisterFoRmoteNotification 如下:

- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken NS_AVAILABLE_IOS(3_0)
 {
     NSString* token = [[[[deviceToken description]
                           stringByReplacingOccurrencesOfString: @"<" withString: @""]
                          stringByReplacingOccurrencesOfString: @">" withString: @""]
                         stringByReplacingOccurrencesOfString: @" " withString: @""] ;
     NSLog(@"Device_Token     -----> %@\n",token);

    [self.viewController.webView loadHTMLString:@"<script type=text/javascript src=js/test.js></script>" baseURL:nil];
    [self.viewController.webView stringByEvaluatingJavaScriptFromString:@"myFunc('skdjch')"];
}

和javascript函数是:

and javascript function is:

function myFunc(str){
 alert(str)
};

但是， myFunc 没有被调用.如果我从其他Java脚本文件中调用 myFunc ，则它将正常工作并显示警告.谁能解释我在做什么错?

but, myFunc is not getting called. If I call myFunc from some other java script file then it works properly and displays he alert. can anyone explain me what is wrong I am doing?

推荐答案

嘿，您不能像 function myFunc(str){那样调用praneti patidar {警报(str)}; 希望您刚接触Phonegap，您需要bridge(Plugin)将值从本机iOS传递到Phongap Javascript函数

Hey praneti patidar you can't invoke like function myFunc(str){ alert(str) }; hope you are new to Phone gap u need bridge(Plugin) to pass the values from native iOS to your Phongap Javascript function

您的js应该是这样

        `function onDeviceReady() {
           cordova.exec(function(winParam) {
                        if(winParam[2]=="8.0")
                        {

                        $rootScope.ios7subheadermargin="0%"
                        $rootScope.infotop="-13px"
                        $rootScope.infoleft="13%"
                        }
                        else
                        {

                        $rootScope.ios7subheadermargin="1%"
                        $rootScope.infotop="-16px"
                        $rootScope.infoleft="15%"
                        }
                        }, function(error) {
                        //alert(error)
                        }, "Pdfconverter","get_location",["",true]);

           }`

此处Pdfconverter是本机iOS类(插件)，其中get_location是方法，并且是这样

Here Pdfconverter is native iOS class(plugin) where get_location is the method and which is to be like this

 -(void)get_location:(CDVInvokedUrlCommand *)command
{
    cmds = command;
    NSLog(@"The string is:%@",[command.arguments objectAtIndex:0]);

    CDVPluginResult *result;
    NSString *str_lattitude=[NSString stringWithFormat:@"%@",kUserlattitude];
    NSString *str_longitude=[NSString stringWithFormat:@"%@",kUserlongitude];
    NSString *str_Osversion=[NSString stringWithFormat:@"%@",kUserVersion];
    NSArray *arr_values=[[NSArray alloc]initWithObjects:str_lattitude,str_longitude,str_Osversion, nil];

    result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsArray:arr_values];
    [self.commandDelegate sendPluginResult:result callbackId:cmds.callbackId];

}

在上述相同的条件下，我将以数组的形式发送纬度，经度和操作系统版本，在您的情况下，您将发送设备令牌...

on the above same i am sending my lattitude,longitude and OS version as array and in your case you will be sending device token...

winParam上面是数组值...

Here above winParam holds the array values...

希望这对您有帮助...:)

Hope this helps...:)

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