使用IOS加载JS函数stringByEvaluatingJavaScriptFromString

Question

I have a simple javascript function with two variables for the geolocation. I need to pass two variables that I already have in my iOS application to this javascript function.

When I send the code via console in the browser everything is OK:

geoCallBackSuccess({coords:{'longitude':9.598470,'latitude':50.903697}})

Is my code correct?

In the simulator I see no effect...

NSString * param  = @"{coords:{'longitude':9.598470,'latitude':50.903697}}";
NSString * jsCallBack = [NSString stringWithFormat:@"geoCallBackSuccess(%@)",param];
NSLog(@"viewDidLoad - jsCallBack: %@", jsCallBack);
[self.offerUrl stringByEvaluatingJavaScriptFromString:jsCallBack];

Log:

viewDidLoad - jsCallBack: geoCallBackSuccess({coords:{'longitude':9.598470,'latitude':50.903697}})

For example, this works for me:

[self.offerUrl  stringByEvaluatingJavaScriptFromString:@"document.getElementById(\"anzeige\").innerHTML=\"Hello World\";"];

I want to do the same as I do in Android:

@java...

public void getLocation() {
// magic
if (locationOk) { 
   webview.loadUrl("javascript:geoCallBackSuccess({coords:{'longitude':9.598470,'latitude':50.903697}})");
} else { webview.loadUrl("javascript:geoCallBackError({code:})");
}
}

Thanks

Answer 1

我相信您在函数名称后的字符串中只丢失了一个分号，分号-

NSString * jsCallBack = [NSString stringWithFormat:@"geoCallBackSuccess(%@);",param];