String AppURL = "https://play.google.com/store/apps/details?id=" + getApplicationContext().getPackageName();
String urlToShare = "http://stackoverflow.com/questions/7545254"; // I need custom url to specific part in my app

// See if official Facebook app is found
boolean facebookAppFound = false;
List<ResolveInfo> matches = getPackageManager().queryIntentActivities(intent, 0);
for (ResolveInfo info : matches) {
    if (info.activityInfo.packageName.toLowerCase().startsWith("com.facebook.katana")) {
        intent.setPackage(info.activityInfo.packageName);
        facebookAppFound = true;
        break;
    }
}

// As fallback, launch sharer.php in a browser
if (!facebookAppFound) {
    String sharerUrl = "https://www.facebook.com/sharer/sharer.php?u=" + urlToShare;
    intent = new Intent(Intent.ACTION_VIEW, Uri.parse(sharerUrl));
}else{

Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
// intent.putExtra(Intent.EXTRA_SUBJECT, "Foo bar"); // NB: has no effect!
intent.putExtra(Intent.EXTRA_TEXT, urlToShare);
}

startActivity(intent);

ShareDialog shareDialog;
FacebookSdk.sdkInitialize(Activity.this);
shareDialog = new ShareDialog(act);
ShareLinkContent linkContent = new ShareLinkContent.Builder()
                    .setContentTitle("title")
                    .setContentDescription(
                            "Description")
                    .setContentUrl(Uri.parse("your url")).build();
            shareDialog.show(linkContent);

private void shareFacebook(File mFileImagePath) {
    String application = "com.facebook.katana";
    boolean installed = checkAppInstall(application);
    if (installed) {
        Intent mIntentShare = new Intent(Intent.ACTION_SEND);
        String mStrExtension = android.webkit.MimeTypeMap.getFileExtensionFromUrl(Uri.fromFile(mFileImagePath).toString());
        String mStrMimeType = android.webkit.MimeTypeMap.getSingleton().getMimeTypeFromExtension(mStrExtension);
        if (mStrExtension.equalsIgnoreCase("") || mStrMimeType == null) {
            // if there is no extension or there is no definite mimetype, still try to open the file
            mIntentShare.setType("text*//*");
        } else {
            mIntentShare.setType(mStrMimeType);
        }
        mIntentShare.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(mFileImagePath));
        mIntentShare.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

        mIntentShare.setPackage(application);
        startActivity(mIntentShare);
    } else {

        Toast.makeText(mContext, "Facebook have not been installed.", Toast.LENGTH_SHORT).show();
    }

}

private boolean checkAppInstall(String uri) {
    PackageManager pm = getPackageManager();
    try {
        pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
        return true;
    } catch (PackageManager.NameNotFoundException e) {
        //Error
    }
    return false;
}