CODEWITHSUNDEEP
iosiphonehtmluiwebview
Amulya
Amulya

Reputation: 182

Sharing HTML5 localstorage among multiple UIWebViews

I have a ViewController which has multiple UIWebViews. I am using localstorage.setItem to store some variables. But the problem is that these variables are accessible only within the UIWebViews in which has been set. If i am trying to get( localstorage.getitem) the variable of other UIWebViews it's giving null value .

WebView1=====>>>>localStorage.setItem("var1","val");

WebView2=====>>>>alert(localstorage.getItem("var1")); ===>>is null

Upvotes: 1

Views: 1615

Answers (1)

Jacob Oscarson
Jacob Oscarson

Reputation: 6393

Sorry, but that's just how the framework is designed: every UIWebView is it's own instance, isolated from other instances in the same app (just like there is no built-in pop-up or tab functionality).

If there is absolute no other way around it, you could make the web views Cordova WebView's and programatically arrange for some way to transfer data between them via the native layer (there's also alternatives, like WebViewJavascriptBridge that accomplishes the same thing).

Maybe you could even get by just by injecting the data needed using stringByEvaluatingJavaScriptFromString into a known data structure beforehand. But having the Javascript in a UIWebView call the native side is a well known difficult-to-do thing that can only be solved by using bridging solutions like i mentioned in the second paragraph.

Upvotes: 2

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