获取WebView加载HTML时网页中的内容
2013/10/18 12:16:00 郑文亮 博客园
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- 摘要:main.xml如下:[html]viewplaincopy<RelativeLayoutxmlns: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"tools:context="
- 标签:Web view 内容 网页
main.xml如下:
[html]class="Apple-converted-space"> view plaincopy
- <RelativeLayout 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"
- tools:context=".MainActivity" >
-
- <WebView
- android:id="@+id/webView"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent"
- android:layout_centerHorizontal="true"
- android:layout_centerVertical="true"
- />
-
- </RelativeLayout>
MainActivity如下:
[java] view plaincopy
- package com.example.testgetwebviewcontent;
- import android.app.Activity;
- import android.graphics.Bitmap;
- import android.os.Bundle;
- import android.webkit.WebView;
- import android.webkit.WebViewClient;
-
-
-
-
-
-
- public class MainActivity extends Activity {
- private WebView mWebView;
-
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
- init();
- }
- private void init(){
- mWebView=(WebView) findViewById(R.id.webView);
- mWebView.getSettings().setJavaScriptEnabled(true);
- mWebView.addJavascriptInterface(new InJavaScriptLocalObj(), "local_obj");
- mWebView.getSettings().setSupportZoom(true);
- mWebView.getSettings().setDomStorageEnabled(true);
- mWebView.getSettings().setPluginsEnabled(true);
- mWebView.requestFocus();
- mWebView.getSettings().setUseWideViewPort(true);
- mWebView.getSettings().setLoadWithOverviewMode(true);
- mWebView.getSettings().setSupportZoom(true);
- mWebView.getSettings().setBuiltInZoomControls(true);
- mWebView.loadUrl("http://www.baidu.com");
- mWebView.setWebViewClient(new WebViewClient() {
- @Override
- public void onPageStarted(WebView view, String url, Bitmap favicon) {
- super.onPageStarted(view, url, favicon);
- }
-
- @Override
- public boolean shouldOverrideUrlLoading(WebView view, String url) {
- view.loadUrl(url);
- return true;
- }
-
- @Override
- public void onPageFinished(WebView view, String url) {
- super.onPageFinished(view, url);
- view.loadUrl("javascript:window.local_obj.showSource('<head>'+"
- + "document.getElementsByTagName('html')[0].innerHTML+'</head>');");
-
- }
-
- @Override
- public void onReceivedError(WebView view, int errorCode,
- String description, String failingUrl) {
- super.onReceivedError(view, errorCode, description, failingUrl);
- }
-
- });
- }
-
- final class InJavaScriptLocalObj {
- public void showSource(String html) {
- System.out.println("====>html="+html);
- }
- }
- }