#If JAVA
public void open_on_instagram(String link){
Uri uri = Uri.parse("http://instagram.com/p/" + link);
Intent likeIng = new Intent(Intent.ACTION_VIEW, uri);
likeIng.setPackage("com.instagram.android");
try {
startActivity(likeIng);
} catch (ActivityNotFoundException e) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://instagram.com/p/" + link)));
}
}
#End If