Return response data from function “onResponse” in Volley Library

Updated 6 July 2023


Volley East, Fast Networking for Android
Android volley is a networking library, which was introduced to make networking calls easier, faster without writing a lot of codes.

There are many features in Volley:

It integrates easily with any protocol and comes out of the box with support for raw strings, images, and JSON.

So here, We will know how to return data from onResponse() of Volley to our function:

1. Make an interface: 

first of all, make an interface named VolleyCallback and interface method named onSuccessResponse.

2. How to use interface in our volley onResponse() 

Here, I have made a function named getResponse(…, …, …, VolleyCallback callback) with VolleyCallback interface as a parameter, then

In above code, getResponse() have 4 parameters:

1- int method – which define your method type which can be GET, POST, PUT, DELETE.

2- String url – this is your url, where you want to send a request and get a response.

3- JSONObject jsonValue this is your JSON data which will be used when you send the post request. 

4- VolleyCallback callback – This is your interface object.

and in onResponse(String Response) you can pass the Response value to the interface function onSuccessResponse(Response). Like

If your application makes constant use of the network, it’s probably most efficient to set up a single instance of RequestQueue that will last the lifetime of your app. so the code


3. How can you get the return data response in your function:

Here, I have made a function named myWebServiceFun() and call it whenever you want.

In above code,

we have to override the function onSuccessResponse(). And you get a result as a response. Here, I have received a JSON data. And show the message which has sent from API function.








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