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Wednesday, 10 September 2014

how to call website using http in android

how to call website using http in android

Android application.

Adding a WebView to Your Application

To add a WebView to your Application, simply include the <WebView> element in your activity layout. For example, here's a layout file in which the WebView fills the screen:
<?xml version="1.0" encoding="utf-8"?>
<WebView  xmlns:android=""
To load a web page in the WebView, use loadUrl(). For example:
WebView myWebView = (WebView) findViewById(;
Before this will work, however, your application must have access to the Internet. To get Internet access, request the INTERNET permission in your manifest file. For example:
<manifest ... >
    <uses-permission android:name="android.permission.INTERNET" />
That's all you need for a basic WebView that displays a web page.

Using JavaScript in WebView

If the web page you plan to load in your WebView use JavaScript, you must enable JavaScript for your WebView. Once JavaScript is enabled, you can also create interfaces between your application code and your JavaScript code.

Enabling JavaScript

JavaScript is disabled in a WebView by default. You can enable it through the WebSettings attached to your WebView. You can retrieve WebSettings with getSettings(), then enable JavaScript with setJavaScriptEnabled().
For example:
WebView myWebView = (WebView) findViewById(;
WebSettings webSettings = myWebView.getSettings();
WebSettings provides access to a variety of other settings that you might find useful. For example, if you're developing a web application that's designed specifically for the WebView in your Android application, then you can define a custom user agent string with setUserAgentString(), then query the custom user agent in your web page to verify that the client requesting your web page is actually your Android application.

Binding JavaScript code to Android code

When developing a web application that's designed specifically for the WebView in your Android application, you can create interfaces between your JavaScript code and client-side Android code. For example, your JavaScript code can call a method in your Android code to display a Dialog, instead of using JavaScript's alert() function.
To bind a new interface between your JavaScript and Android code, call addJavascriptInterface(), passing it a class instance to bind to your JavaScript and an interface name that your JavaScript can call to access the class.
For example, you can include the following class in your Android application:
public class WebAppInterface {
    Context mContext;

    /** Instantiate the interface and set the context */
    WebAppInterface(Context c) {
        mContext = c;

    /** Show a toast from the web page */
    public void showToast(String toast) {
        Toast.makeText(mContext, toast, Toast.LENGTH_SHORT).show();

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