好的，我想我已经回答了你的问题here
此外，您似乎喜欢复制类似的问题here 和here
就像我已经告诉过你的那样，你可以通过创建一个接受 url 作为额外意图的活动来完成此操作。
以您的代码为基础：
浏览器.java
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class Browser extends Activity {
private WebView webview;
private String URL;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.browser);
Bundle extras = getIntent().getExtras();
if (extras == null) {
URL = "http://www.evonytools.org/";
} else {
this.URL = extras.getString("URL");
}
getWebView();
}
public void getWebView() {
webview = (WebView) findViewById(R.id.webview);
webview.setWebViewClient(new HelloWebViewClient());
webview.getSettings().setJavaScriptEnabled(true);
webview.loadUrl(this.URL);
}
private class HelloWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && webview.canGoBack()) {
webview.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
}
布局/broswer.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
>
<WebView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/webview"
/>
</LinearLayout>
Main.java
public class Main extends TabActivity{
private TabHost tabHost;
private EditText addressBar;
private final static String DEFAULT_URL = "http://www.evonytools.org/";
private int z = 0;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tabs_main);
this.tabHost = getTabHost(); // The activity TabHost
this.addressBar = (EditText) findViewById(R.id.address_bar);
this.addressBar.setText(DEFAULT_URL);
ImageButton addBtn = (ImageButton) findViewById(R.id.add_btn);
addBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
addMethod();
}
});
Intent openBrowser = new Intent();
openBrowser.setClass(this, Browser.class);
openBrowser.putExtra("URL", DEFAULT_URL);
tabHost.addTab(tabHost.newTabSpec("Main").setIndicator(getHost(DEFAULT_URL)).setContent(openBrowser));
}
private void addMethod() {
String webSiteURL = validateURL(addressBar.getText().toString().trim());
String webSiteName = getHost(webSiteURL);
Intent openBrowser = new Intent();
openBrowser.setClass(this, Browser.class);
openBrowser.putExtra("URL", webSiteURL);
tabHost.addTab(tabHost.newTabSpec(webSiteName + Integer.toString(z)).setIndicator(webSiteName).setContent(openBrowser));
++z;
}
private void deleteMethod() {
// Since we can't really delete a TAB
// We hide it
int position = tabHost.getCurrentTab();
if (position != 0 ) {
tabHost.getCurrentTabView().setVisibility(8);
tabHost.setCurrentTab(0);
}
}
// Inflates menu when "menu Key" is pressed
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
// This method is called once the menu is selected
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.add:
addMethod();
break;
case R.id.delete:
deleteMethod();
break;
}
return true;
}
private String validateURL(String url) {
StringBuffer urlB = new StringBuffer();
// checks if addressBar has a valid URL
// you can add stuff here in order to validate
// this is just an example
if (url.startsWith("http://")) {urlB.append(url);} else {urlB.append("http://");}
try {
URL urlTry = new URL(urlB.toString());
return urlB.toString();
} catch (MalformedURLException e) {
return "http://www.google.com/";
}
}
private String getHost(String url) {
try {
URL urlTry = new URL(url);
return urlTry.getHost().replace("www.", "").replace(".com", "").replace(".org", "").replace(".net", "");
} catch (MalformedURLException e) {
return "Browser";
}
}
}
tabs_main.xml
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp">
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:tag="tabPane"
/>
<RelativeLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<EditText
android:id="@+id/address_bar"
android:layout_width="270px"
android:layout_height="50px"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
/>
<ImageButton
android:id="@+id/add_btn"
android:layout_width="50px"
android:layout_height="50px"
android:src="@android:drawable/ic_menu_add"
android:background="@android:color/transparent"
android:layout_toRightOf="@id/address_bar"
/>
</RelativeLayout>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="2dp" />
</LinearLayout>
希望我没有做你的功课。