development version is relatively high, you need to add @javascriptinterface annotations to the called function.
Here is the code example given by Google:Webviewdemo.java
Copy Code code as follows:
Package Com.google.android.webviewdemo;
Import android.app.Activity;
Import Android.os.Bundle;
Import Android.os.Handler;
Import Android.util.Log;
Import Android.webkit.JsResult;
Import android.webkit.WebChromeClient;
Import android.webkit.WebSettings;
Import Android.webkit.WebVie
WebView interaction with JavaScript-Android
In our work, we need to use WebView to interact with javascript. Below we will introduce a simple requirement.
Let's take a look at it first:
Requirements:
1. click a button to go to The Web
JavaScript in Android WebView parseint function Conversion problem Solving methodThis article mainly introduces JavaScript in the Android WebView parseint function Conversion problem solving method, because the conversion of the s
Nowadays, many mobile apps may embed a web page directly. Benefits: one is convenient feature updates and easy maintenance. You only need to maintain the page of the server without updating the client. The other is universal functionality, not only available for android, ios can also be used, and symbian can also be used directly. In addition, WebView has strong support for
Today, WebView with JavaScript in Android, the first is to add WebView controls to the layout file:[HTML]View Plaincopy
WebView
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_hei
The first thing to do is to have JavaScript basics before you can read this article.
(1) JS calls the Android method:
Copy Code code as follows:
WebView Wview;
Wview. Addjavascriptinterface (Object obj, String InterfaceName);
is an instantiation of an object, called in the HTML JS, the second parameter is the alias of the instantiated object,
business script to improve the loading speed and the user experience.
In hybrid development, the Android native SDK is sometimes used, such as calling a camera, viewing a photo album, recording, and so on, which requires JavaScript on the Web page to invoke the Android SDK interface. Since the Android
WebView loading URL process, get the corresponding URL, we can through this method, and the page JS convention good one protocol, look at the JS code:After this JS code executes, it will trigger the local Shouldoverrideurlloading method, then parse the parameters and invoke the specified method.This method is not the first method of the vulnerability problem, but the careful classmate can find that the convention between local and JS is a bit cumbers
Android WebView interacting with JavaScriptNovember, 2015 Https://mthli.github.io/Android-WebView-JavaScript
Recently in doing some and webview related work, the period involved with JavaScrip
is slow and the experience is poor ).
For the above reasons, many projects now make some functions web-based, and some functions are written using other controls. This requires web pages to interact with other controls. How to interact is to use custom javascript.
The following is a virtual scenario.
Now there is a function to display the current user's friend list. The friend list page is web-based. Click a friend's avatar to go to the friend's deta
Reprint Please specify Source: http://blog.csdn.net/forwardyzk/article/details/46819925In the work, there is a need to use WebView and JavaScript to interact with, the following we have a simple need to introduce.First Look at:Demand:1. Click on a button to enter an interface to load WebView, assuming that the interface needs to share this interface to other plat
Open a Web page with WebView on the Android tablet, call the JavaScript method inside, and pass the argument to each other.Online examples are very little ah, basically can not get the return value, paste a final debugging of their own code as follows:Java:
Copy Code code as follows:
protected void OnCreate (Bundle savedinstancestate)
{
.......
the assetsdirectory. The Code is as follows (I don't know why mce is added here: these few things, is correct ):
Function fillContent (){Document. getElementById ("content"). innerHTML ="This Content is showed by Android invoke Javascript function .";}
// -->
Step 4: Modify the main core program WebViewDemo. java. The Code is as follows:
Package com. tutor. webwiewdemo;
Import
is slow and the experience is poor ).
For the above reasons, many projects now make some functions web-based, and some functions are written using other controls. This requires web pages to interact with other controls. How to interact is to use custom JavaScript.
The following is a virtual scenario.
Now there is a function to display the current user's friend list. The friend list page is web-based. Click a friend's avatar to go to the friend's d
The previous article mainly explains how to call java functions in js.
Address: http://www.bkjia.com/kf/201205/132839.html
This article uses js and java to call each other to solve the relationship between each other.
First, describe the important code:
Key code in android:
Webview. getSettings (). setJavaScriptEnabled (true );
Webview. addJavascriptInterface (o
Android applicationsProgramYou can directly call Javascript in webviewCodeThe javascript code in webview can also call Android applications (that is, Java code). The following is an example:
1. JavaScript scripts call
://gate.baidu.com/tc?from=opentcsrc=";
private String Willloadurl = "http://www.google.com.hk";
private WebView WebView;
//This is the JavaScript to inject, note: The preceding "javascript:" is required, followed by the statement to be injected
private static final String Insertjavascript = "Javascr
experience is poor.
For the above reasons, many projects now make some of the functionality web-style, and some of the functionality is written with other controls. This requires a Web page to interact with other controls. How to interact is to take advantage of custom JavaScript.
Below is a virtual scene.
Now there is a feature that shows the current user's buddy list, buddy list page is the Web way, click on a friend's avatar, enter the friend's
Objective:
Recently, the company's app to speed up the development of the efficiency of selected part of the use of H5 development, from the current market for most of the app, roughly divided into native app, Web app, Hybrid app three ways, personally feel that the current Hybrid app mostly, Simple data Display We directly use WebView to render it, but sometimes it may be used to pass the parameters between the two, today to sum up how the two call
To facilitate interaction between Web pages and Android apps, the Android system provides a mechanism for invoking Java class methods in WebView JavaScript Web scripts. You can map a Java object to a JavaScript object as long as you call the Addjavascriptinterface method.
1
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