Tuesday 2 May 2017

Swipe to Refresh ListView(SwipeRefreshLayout) in Android Studio.

Creating New Project.
Open android studio and create a new project.


File => New => New Project => Configure your new project => Select the form factor yours app will run on => Add an Activity to Mobile => Customize the Activity => Finish.

First we need to add Library to our project.
compile 'com.mcxiaoke.volley:library-aar:1.0.0'

Create Xml file in project.  
Open => app => res => layout - activity_main.xml.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="16dp">


    <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swiperefreshlayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:text="Swipe To Refresh"
            android:textSize="18dp" />

    </android.support.v4.widget.SwipeRefreshLayout>

</LinearLayout>




Create the Java file in project.

Open app => main => src = MainActivity.java

import android.os.Bundle;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;

public class MainActivity extends AppCompatActivity {

    SwipeRefreshLayout swipeRefreshLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        refresh();
        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swiperefreshlayout);
        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                refresh();
            }
        });

    }

    private void refresh() {
        //Getting then data through json volley...
        StringRequest stringRequest = new StringRequest(Request.Method.GET, "http://api.androidhive.info/contacts/",
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {

                        Toast.makeText(MainActivity.this, response, Toast.LENGTH_SHORT).show();
                        swipeRefreshLayout.setRefreshing(false);
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        //swipeRefreshLayout.setRefreshing(false);
                    }
                });

        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(stringRequest);

    }
}


Add Internet permission in your manifest.
<uses-permission android:name="android.permission.INTERNET" />


May this code help you. Thanks!!!!!!

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