The default requests integrated in volley don't allow to pass a JSONArray as request body in a POST request. Instead, you can only pass a JSON object as a parameter.
However, instead of passing a JSON object as a parameter to the request constructor, you need to override the getBody() method of the Request.class. You should pass null as third parameter as well:
JSONArray requestBody = new JSONArray();
new JsonObjectRequest(Request.Method.POST, REQUEST_URL, null, RESP_LISTENER, ERR_LISTENER) {
@Override
public byte[] getBody() {
try {
return requestBody.toString().getBytes(PROTOCOL_CHARSET);
} catch (UnsupportedEncodingException uee) {
// error handling
return null;
}
}
};
Explanation of the parameters:
REQUEST_URL - The full URL to send your request to.RESP_LISTENER - A Response.Listener<?> object, whose onResponse(T data) method is called upon successful completion.ERR_LISTENER - A Response.ErrorListener object, whose onErrorResponse(VolleyError e) method is called upon an unsuccessful request.