Best Practices for Handling Search

Question

I\'ve got a SearchView setup, and I have a loosely decoupled architecture using Retrofit and Otto.

I am wondering what the

Answer 1

I think there is no sense to make an API call before user stopped typing. So, you can put a delay, say, 500ms. When user stops typing, after 500ms you make an API call and show the results.

You can use a Handler's postDelayed method for scheduling search API calls. You can use Handler to control the message queue. You post a delayed Runnable each time user types a character and cancel previous messages. It will look this way:

public void onTextChanged(CharSequence s, int start, int before, int count) {
    handler.removeCallbacks(searchRunnable);
    handler.postDelayed(searchRunnable, 500);
}