Activity:
- public class CourseOnLine extends Activity {
- private WebView webview;
- private ProgressDialog dialog;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- showDialog(0);
- super.onCreate(savedInstanceState);
- setContentView(R.layout.online);
- Intent intent=getIntent();
- Bundle data=intent.getExtras();
- String courseURL=data.getString(“courseWebURL”);
- webview=(WebView)findViewById(R.id.webview01);
- //设置WebView属性,能够执行JavaScript脚本
- webview.getSettings().setJavaScriptEnabled(true);
- //如果要播放Flash,需要加上这一句
- webview.getSettings().setPluginsEnabled(true);
- //加载URL内容
- webview.loadUrl(courseURL);
- MyWebViewClient myWebView=new MyWebViewClient();
- webview.setWebViewClient(myWebView);
- }
- @Override//设置回退
- public boolean onKeyDown(int keyCode, KeyEvent event) {
- if((keyCode==KeyEvent.KEYCODE_BACK) && webview.canGoBack()){
- webview.goBack();
- return true;
- }
- return super.onKeyDown(keyCode, event);
- }
- @Override
- protected Dialog onCreateDialog(int id) {
- //实例化进度条对话框
- dialog=new ProgressDialog(this);
- /*//可以不显示标题
- dialog.setTitle(“正在加载,请稍候!”);*/
- dialog.setIndeterminate(true);
- dialog.setMessage(“正在加载,请稍候!”);
- dialog.setCancelable(true);
- return dialog;
- }
- private class MyWebViewClient extends WebViewClient{
- @Override
- public boolean shouldOverrideUrlLoading(WebView view, String url) {
- view.loadUrl(url);
- return true;
- }
- @Override
- public void onPageFinished(WebView view, String url) {
- dialog.dismiss();
- }
- @Override
- public void onReceivedError(WebView view, int errorCode,
- String description, String failingUrl) {
- // TODO Auto-generated method stub
- super.onReceivedError(view, errorCode, description, failingUrl);
- dialog.dismiss();
- }
- }
layout:online.xml
- <?xml version=“1.0” encoding=“utf-8”?>
- <LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”
- android:orientation=“vertical”
- android:layout_width=“fill_parent”
- android:layout_height=“fill_parent”
- >
- <WebView
- android:id=“@+id/webview”
- android:layout_width=“fill_parent”
- android:layout_height=“fill_parent”
- />
- </LinearLayout>