Launch default browser with intent and post parameters [duplicate]

Answer 1

It can be done, but in a tricky way.

You can create a little html file with an auto submit form, read it into a string, replace params and embed it in the intent as a data uri instead of a url. There are a couple little negative things, it only works calling default browser directly, and trick will be stored in browser history, it will appear if you navigate back.

Here is an example:

HTML file (/res/raw):

    
        

            
            ...
        
    

Source code:

private void browserPOST() {
    Intent i = new Intent();
    // MUST instantiate android browser, otherwise it won't work (it won't find an activity to satisfy intent)
    i.setComponent(new ComponentName("com.android.browser", "com.android.browser.BrowserActivity"));
    i.setAction(Intent.ACTION_VIEW);
    String html = readTrimRawTextFile(this, R.raw.htmlfile);

    // Replace params (if any replacement needed)

    // May work without url encoding, but I think is advisable
    // URLEncoder.encode replace space with "+", must replace again with %20
    String dataUri = "data:text/html," + URLEncoder.encode(html).replaceAll("\\+","%20");
    i.setData(Uri.parse(dataUri));
    startActivity(i);
}

private static String readTrimRawTextFile(Context ctx, int resId) {
    InputStream inputStream = ctx.getResources().openRawResource(resId);

    InputStreamReader inputreader = new InputStreamReader(inputStream);
    BufferedReader buffreader = new BufferedReader(inputreader);
    String line;
    StringBuilder text = new StringBuilder();
    try {
        while ((line = buffreader.readLine()) != null) {
            text.append(line.trim());
        }
    }
    catch (IOException e) {
        return null;
    }
    return text.toString();
}