Volley use guide

Volley

Get Start

import library

Open build.gradle and Add volley Support by Adding compile 'com.android.volley:volley:1.+'

Adding Permission

In AndroidManifests.xml add INTERNET Permission
<uses-permission android:name="android.permission.INTERNET"/>

Usage

Init RequestQueue RequestQueue mQueue = Volley.newRequestQueue(this);

Get

// String Request
StringRequest getRequest = new StringRequest("https://jsonplaceholder.typicode.com/posts",
	new Response.Listener<String>()
	{
		@Override
		public void onResponse(String s)
		{
			Log.d("MYLOG","The String: "+s);
		}
	}, new Response.ErrorListener()
	{
		@Override
		public void onErrorResponse(VolleyError volleyError)
		{
			Log.d("MYLOG",volleyError.toString());
		}
	});
	mQueue.add(getRequest);
// JSONObject Request
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET,
	"https://jsonplaceholder.typicode.com/posts",null, new Response.Listener<JSONObject>()
	{
		@Override
		public void onResponse(JSONObject response)
		{
			Log.d("MYLOG",response.toString());
		}
	}, new Response.ErrorListener()
	{
		@Override
		public void onErrorResponse(VolleyError error)
		{
			Log.d("MYLOG",error.toString());
		}
	});
mQueue.add(jsonObjectRequest);

Post

StringRequest questpost = new StringRequest(Request.Method.POST,
	"http://jsonplaceholder.typicode.com/posts",
	new Response.Listener<String>()
	{
		@Override
		public void onResponse(String response)
		{
			Log.d("MYLOG","String: "+response);
		}
	}, new Response.ErrorListener()
	{

		@Override
		public void onErrorResponse(VolleyError error)
		{
			Log.d("MYLOG","ERROR: "+error.toString());
		}
	})
	{
		@Override
		protected Map<String, String> getParams() throws AuthFailureError
		{
			Map<String,String> map = new HashMap<>();
			map.put("title","foo");
			map.put("body","bar");
			map.put("userId","444");
			return map;
		}
	};
mQueue.add(questpost);

PUT

StringRequest questpost = new StringRequest(Request.Method.PUT,
	"https://jsonplaceholder.typicode.com/posts/1", 
	new Response.Listener<String>(
	{
		@Override
		public void onResponse(String response)
		{
			Log.d("MYLOG","String: "+response);
		}
	}, new Response.ErrorListener()
	{
		@Override
		public void onErrorResponse(VolleyError error)
		{
			Log.d("MYLOG","ERROR: "+error.toString());
		}
	})
	{
		// Add Header
		@Override
		public Map<String, String> getHeaders() throws AuthFailureError
		{
			Map<String,String> map = new HashMap<>();
			map.put("Content-Type","application/x-www-form-urlencoded");
			return map;
		}
		// Add Params
		@Override
		protected Map<String, String> getParams() throws AuthFailureError
		{
			Map<String,String> map = new HashMap<>();
			map.put("title","SSSSSSSfoo");
			return map;
		}
	};
mQueue.add(questpost);