Wednesday, 11 February 2015

Android Webview Swipe To Refresh


Add the following Layout and Class file into your project.

Mainactivity.java



package com.dhinakaran.swiperefreshlayout;

import android.app.Activity;

import android.os.Bundle;
import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.util.Log;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class MainActivity extends Activity 

{
 WebView browser;
@Override
protected void onCreate(Bundle savedInstanceState) 
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final SwipeRefreshLayout swipeView =(SwipeRefreshLayout)findViewById(R.id.swipe);
browser = (WebView)findViewById(R.id.webView1);
        browser.setWebViewClient(new MyBrowser());
        browser.loadUrl("http://androiddhina.blogspot.in/");
swipeView.setColorScheme(android.R.color.holo_blue_dark,android.R.color.holo_blue_light, android.R.color.holo_green_light,android.R.color.holo_green_dark);
swipeView.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() 
{
@Override
public void onRefresh() 
{
        swipeView.setRefreshing(true);
             ( new Handler()).postDelayed(new Runnable() 
{
@Override
public void run() 
{
                         swipeView.setRefreshing(false);
browser.loadUrl("http://androiddhina.blogspot.in/");
}
}, 4000);
}
});
}
   private class MyBrowser extends WebViewClient  //If you click on any link inside the webpage of the WebView , that page will not be loaded inside your WebView. In order to do that you need to extend your class from WebViewClient by using the below function.
      {
      @Override
      public boolean shouldOverrideUrlLoading(WebView view, String url) {
         view.loadUrl(url);
         return true;
      }
   }
}

activity_main.xml file


<android.support.v4.widget.SwipeRefreshLayout    xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:id="@+id/swipe"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:paddingBottom="@dimen/activity_vertical_margin"  android:paddingLeft="@dimen/activity_horizontal_margin"  android:paddingRight="@dimen/activity_horizontal_margin"  android:paddingTop="@dimen/activity_vertical_margin"
 tools:context=".MainActivity" >

<ScrollView
 android:layout_width="match_parent"
 android:layout_height="match_parent" >

 <WebView
 android:id="@+id/webView1"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_alignLeft="@+id/textView1"
 android:layout_alignParentBottom="true"
 android:layout_below="@+id/button1" />

</ScrollView>

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


AndroidManifest.xml file

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.dhinakaran.swiperefreshlayout" 
 android:versionCode="1" android:versionName="1.0" > 
 <uses-sdk android:minSdkVersion="8"
 android:targetSdkVersion="18" /> 
 <uses-permission android:name="android.permission.INTERNET"/> 
 <application 
        android:allowBackup="true" 
        android:icon="@drawable/ic_launcher"        
        android:label="@string/app_name" 
        android:theme="@style/AppTheme" >
               <activity 
                 android:name="com.example.swiperefreshlayout.MainActivity"                                                            android:label="@string/app_name" >                            
              <intent-filter> 
              <action   android:name="android.intent.action.MAIN" />
              <category android:name="android.intent.category.LAUNCHER" /> 
              </intent-filter>
          </activity>
 </application>
</manifest>

Happy Coding:)