android – How to handle intent:// on a webView URL?-ThrowExceptions

Exception or error:

I’m currently developing an android app with a webView. On some urls I need to use the shouldOverrideUrlLoading method, which is pretty straight forward :

if(url.startsWith("something")){
//do something
return true;
}

My problem:

Some URLS, on google search for example, have the following URL scheme :

intent://en.m.wikipedia.org/wiki/Test_cricket#Intent;scheme=http;package=org.wikipedia;S.browser_fallback_url=https%3A%2F%2Fwww.google.pt%2Fsearchurl%2Fr.html%23app%3Dorg.wikipedia%26pingbase%3Dhttps%3A%2F%2Fwww.google.pt%2F%26url%3Dhttps%3A%2F%2Fen.m.wikipedia.org%2Fwiki%2FTest_cricket;S.android.intent.extra.REFERRER_NAME=https%3A%2F%2Fwww.google.pt;launchFlags=0x8080000;end

I’ve tried using :

Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(browserIntent);

But I got an error:

10-15 15:18:15.546: W/System.err(29086): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=intent://en.m.wikipedia.org/wiki/Test_cricket }

How should I handle this kind of URL scheme ?


UPDATE:

Following @CommonsWare comments, I’ve tried using parseUri() on Intent to create an Intent object from the URL and then try startActivity(), something like:

Intent myIntent = new Intent().parseUri(url, Intent.URI_INTENT_SCHEME);
startActivity(myIntent);

But I still get :

android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=http://en.m.wikipedia.org/wiki/Test_cricket flg=0x8080000 pkg=org.wikipedia (has extras) }

I may have got the instructions wrong or I’m simply unable to construct the intent as @CommonsWare specified. Any tips on how to construct the Intent?

How to solve:

Structure of this intent url is described here https://developer.chrome.com/multidevice/android/intents.

So we can handle it in internal WebView like this:

@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
    if (url.startsWith("intent://")) {
        try {
            Context context = view.getContext();
            Intent intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);

            if (intent != null) {
                view.stopLoading();

                PackageManager packageManager = context.getPackageManager();
                ResolveInfo info = packageManager.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
                if (info != null) {
                    context.startActivity(intent);
                } else {
                    String fallbackUrl = intent.getStringExtra("browser_fallback_url");
                    view.loadUrl(fallbackUrl);

                    // or call external broswer
//                    Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(fallbackUrl));
//                    context.startActivity(browserIntent);
                }

                return true;
            }
        } catch (URISyntaxException e) {
            if (GeneralData.DEBUG) {
                Log.e(TAG, "Can't resolve intent://", e);
            }
        }
    }

    return false;
}

###

Comrade’s answer is the one to use.


The way I managed to solve this isn’t elegant but it works.

First we check if the url startsWith with intent:// and contains scheme=http, if so, we get the value right after intent://everything until# and pass it to Intent.ACTION_VIEW, if not, we return false (ignore click).
I’ve tested this solution with several results from google mobile search, such as, twitter, facebook, google maps and wikipedia and it worked flawlessly.

@Override
public boolean shouldOverrideUrlLoading( WebView view, String url) {
    if(url.startsWith("intent://") && url.contains("scheme=http")){
        url = Uri.decode(url);
        String bkpUrl = null;
        Pattern regexBkp = Pattern.compile("intent://(.*?)#");
        Matcher regexMatcherBkp = regexBkp.matcher(url);
        if (regexMatcherBkp.find()) {
            bkpUrl = regexMatcherBkp.group(1);
            Intent myIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://"+bkpUrl));
            startActivity(myIntent);
            return true;
        }else{
            return false;
        }
   }
return false;
}

If you’ve a better solution, I would like to hear it.
Thank you all for the support, specially CommonsWare.

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