Android菜单按钮，刷新页面

Question

我会添加什么代码，以便按下菜单按钮刷新时，它将刷新我的应用程序中的webview。

import android.app.Activity; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.Menu; 
import android.view.MenuInflater; 
import android.view.MenuItem; 
import android.webkit.WebView; 


public class Main extends Activity { 
/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    WebView WV = (WebView) findViewById(R.id.webView1); 
    WV.getSettings().setJavaScriptEnabled(true); 
    WV.loadUrl("http://home.btconnect.com/MrJFisher/"); 



} 

@Override 
public boolean onCreateOptionsMenu (Menu menu) { 
    MenuInflater inflater = getMenuInflater(); 
    inflater.inflate(R.menu.menu, menu); 
    return super.onCreateOptionsMenu(menu); 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    if(item.getItemId() == R.id.item1){ 
     WebView.reload(); 
    } 
    return super.onOptionsItemSelected(item); 
} 
}; 

初学者在这。所以我很抱歉。

Answer 1

编辑：

import android.app.Activity; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.Menu; 
import android.view.MenuInflater; 
import android.view.MenuItem; 
import android.webkit.WebView; 

public class Main extends Activity { 
    WebView mWebView;   

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     mWebView = (WebView) findViewById(R.id.webView1); 
     mWebView.getSettings().setJavaScriptEnabled(true); 
     mWebView.loadUrl("http://home.btconnect.com/MrJFisher/"); 
    } 

    @Override 
    public boolean onCreateOptionsMenu (Menu menu) { 
     MenuInflater inflater = getMenuInflater(); 
     inflater.inflate(R.menu.menu, menu); 
     return super.onCreateOptionsMenu(menu); 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     if(item.getItemId() == R.id.item1){ 
      mWebView.reload(); 
      return true; 
     } 
     return super.onOptionsItemSelected(item); 
    } 
} 

Answer 2

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    if(item.getItemId()== R.id.item1){ 
     WV.reload(); 
     return true; 
    } 
    return super.onOptionsItemSelected(item); 
} 

见WebView docs