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Android Startactivity From Javascriptinterface

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Simple general question. Webview is hooked up to my JavascriptInterface class and it is most certainly functional. However, because JavascriptInterface does not extend Activity, I

Solution 1:

Just use mContext.startActivity(i);

No need to ever create Activity and no need to extend Activity, you just need a reference to Context which you already have stored.

Solution 2:

So i've a solution to start a new intent if have Fragments resp. SherlockFragments, i was struggling with this problem for almost an hour, but here u go:

Fragment opening the WebView:

publicclassMyWebViewFragmentextendsSherlockFragment {

@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    super.onCreateView(inflater, container, savedInstanceState);

    Viewv= inflater.inflate(R.layout.webviewfragment, container, false);
    WebViewmyWebView= (WebView) v.findViewById(R.id.webviewcontainer);
    myWebView.getSettings().setJavaScriptEnabled(true);
    myWebView.addJavascriptInterface(newWebAppInterface(getActivity()),
            "Android");
    myWebView.loadUrl("file:///android_asset/javascript/index.html");

    return v;
}

Javascriptinterface: I'm working on API Level 17, thats why i use the @JavascriptInterface. On id wouldnt work with L16 without the annotation, but i dont got why...

publicclassWebAppInterface {
Context mContext;

/** Instantiate the interface and set the context */WebAppInterface(Context myWebViewFragment) {
    mContext = myWebViewFragment;
}


@JavascriptInterface
publicvoidplayFragmentActivity(long id){

    Intent intent = newIntent(mContext, FragmentActivity.class);
    intent.putExtra(FragmentActivity.EXTRA_ID,Id);
    mContext.startActivity(intent);
}

}

HTML

<body><div><inputtype="button"value="Start X FragmentActivity"onClick="changeFragmentActivity(183216076724928)" /></div><scripttype="text/javascript">functionchangeFragmentActivity(id) {
        Android.playFragmentActivity(id);
    }
</script></body>

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