Using AndroidAsyncHttp Library

APIClient.java

RequestParams params = new RequestParams();
params.put("email", "a@b.c");
params.put("password", "12345678");

APIClient.post("/login", params, new JsonHttpResponseHandler() {
    // @Override them all
    
    public void onStart()  { }      // Runs before anything else
    public void onFinish() { }      // Runs after everything else
    
    // If don't know your response type
    public void onSuccess(int statusCode, Header[] headers, byte[] response)                        { }
    public void onFailure(int statusCode, Header[] headers, byte[] errorResponse, Throwable e)      { }
        
    // If your responses are simple text
    public void onSuccess(int statusCode, Header[] headers, String response)                        { }
    public void onFailure(int statusCode, Header[] headers, String error, Throwable throwable)      { }
    
    // If your responses are JSON Objects (or Arrays)
    public void onSuccess(int statusCode, Header[] headers, JSONObject response)                    { }
    public void onFailure(int statusCode, Header[] headers, Throwable throwable, JSONObject error)  { }
    
    public void onSuccess(int statusCode, Header[] headers, JSONArray response)                     { }
    public void onFailure(int statusCode, Header[] headers, Throwable throwable, JSONArray errors)  { }
    
    // Fuck me, right?
    // You can use more than one at a time
});