Question

I have this code for sharing an app on facebook but when i share it it puts right links but wrong picture of the app

Button bShare = (Button) findViewById(R.id.button7);
    bShare.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            final Intent intent = new Intent(Intent.ACTION_SEND);
            intent.setType("text/plain");
            intent.putExtra(Intent.EXTRA_TEXT, "https://play.google.com/store/apps/details?id=com.myglobaljournal.christmascarol");
            startActivity(Intent.createChooser(intent, "Share with"));

Answer 1

You can use the Debug tool to check how facebook “sees” this url.

From the result you can see that there are no og meta tags defined and so facebook probably takes a random picture from the content.

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Edit

Facebook uses the open graph meta tags to extract info which is then used to render the share stories on the facebook experience.

You can see an example in the archived version of the Open Graph protocol, the new version uses the tags there but it’s too complicated to your needs.

The only question is: can you any control over the output of the google play store for your app?
My guess is that you can’t, and if you look at other examples (such as instagram or opera mobile) the image also appears random.