pull-to-refresh WebView

Allow your WebView pull-to-refresh in Android.

Overview

Here is an example:

Setup

Gradle (Android Studio)

Insert the following dependency to build.gradle file of your project.

dependencies {
    compile 'com.microwu.ptrwebviewlibray:ptrwebview:1.0.0'
}

Note that Maven central repository should be defined eg. in top-level build.gradle like this:

buildscript {
    repositories {
        mavenCentral()
    }
}

allprojects {
    repositories {
        mavenCentral()
    }
}

Maven dependency

<dependency>
  <groupId>com.microwu.ptrwebviewlibray</groupId>
  <artifactId>ptrwebview</artifactId>
  <version>1.0.0</version>
  <type>pom</type>
</dependency>

Usage

Sample project

Sample project is under construction. Not all features are covered yet.

===

Just TWO simple steps to create a WebView who can pull-to-refresh.

1. Container in XML file Just create an empty RelativeLayout in your activity or view's layout.xml as container.

   <?xml version="1.0" encoding="utf-8"?>
   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="match_parent"
   android:layout_height="match_parent">
   
   <RelativeLayout
       android:id="@+id/web_view_container"
       android:layout_width="match_parent"
       android:layout_height="match_parent"/>
       
   </RelativeLayout>

2. Init an instance Create the instance of PullToRefreshWebView and add it into the web_view_container you created in the first step.

   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       
       // NEW THE INSTANCE
       PullToRefreshWebView ptr_web_view_ = new PullToRefreshWebView(this,null);
       RelativeLayout container = (RelativeLayout) findViewById(R.id.web_view_container);
       container.addView(ptr_web_view_);
       ptr_web_view_.loadUrl("http://www.microwu.com");
   }

   Note: PullToRefreshWebView(Context aContext, AttributeSet attrs) is the constructor method to create an instance, aContext is current activity's context, attrs is for webview's attributesSet, you can leave it as null.

Methods

There are several methods:

From 1.0.0

• loadUrl(String url) - let webView load the url
• canGoBack() - return webView can go back or not
• goback() - if canGoBack() return true, you can invoke this to go back.

中文源码解析

关于源码的中文讲解，请参见这里