Created
December 19, 2014 15:33
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Connect Java and JavaScript. Call a java method on Javascript codes that are running in webview
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There is a hack: | |
Bind some Java object so that it can be called from Javascript with WebView: | |
addJavascriptInterface(javaObjectCallback, "JavaCallback") | |
Force execute javascript within an existing page by | |
WebView.loadUrl("javascript: var result = window.YourJSLibrary.callSomeFunction(); | |
window.JavaCallback.returnResult(result)"); | |
(in this case your java class JavaObjectCallback should have a method returnResult(..)) | |
Note: this is a security risk - any JS code in this web page could access/call your binded Java object. Best to pass some one-time cookies to loadUrl() and pass them back your Java object to check that it's your code making the call. |
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