how to animate to 2nd tab when 1st tab recyclerview item is clicked from adapter?

Question

I have been looking for a solution past 2 days and yet no solution worked. So I had to use Intent to restart the activity when item of recyclerview is clicked. Below is the code:

holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Context context = view.getContext();

            Intent intent = new Intent(context, MyActivity.class);
            SharedData.setSelectedCategory(category.getName());
            intent.putExtra("category", category.getName());
            context.startActivity(intent);
            ((MyActivity) context).finish();
        }
    });

and then used below code in the activity to select the 2nd tab like this.

viewPager.setCurrentItem(1, false);
tabLayout.setupWithViewPager(viewPager);

While this works but I still would like to use slide animation to load 2nd tab when 1st tab recyclerview item is clicked. Thank you for your help.

Answer 1

You can use broadcast from onClick to activity, then in an activity you can do something like this viewPager.setCurrentItem(1, true);

In Activity

 public static final String BROADCAST_ACTION = "BROADCAST_ACTION";

BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction() != null &&
                intent.getAction().equals(BROADCAST_ACTION)) {
            viewPager.setCurrentItem(1, true);
        }
    }
};

@Override
protected void onResume() {
    super.onResume();
    LocalBroadcastManager.getInstance(
            MainActivity.this).registerReceiver(broadcastReceiver, new IntentFilter(BROADCAST_ACTION));
}

@Override
protected void onStop() {
    super.onStop();
    LocalBroadcastManager.getInstance(MainActivity.this).unregisterReceiver(broadcastReceiver);
}

In adapter onClick

Intent intent = new Intent(MainActivity.BROADCAST_ACTION);
    LocalBroadcastManager.getInstance(this).sendBroadcast(intent);

Try below code in your activity

viewPager.setAnimation(your_custom_animation);