我无法停止ProgressDialog Android

Question

您好，我有一个Android应用程序，并在我的应用程序webview中尝试制作ProgressDilog。当网站加载时，在活动标题中，每件事情都很好，但在进度对话框中，我无法阻止它。这是我的代码：

mainWebView.setWebChromeClient(new WebChromeClient() { 


      public void onProgressChanged(WebView view, int progress) 
      { 
       activity.setTitle("Loading..."); 
       activity.setProgress(progress * 100); 
       progressDialog = ProgressDialog.show(MainActivity.this, "", "Loading..."); 



       if(progress == 100) 
       { 
        activity.setTitle(mainWebView.getTitle()); 
         progressDialog.dismiss(); 
       } 


      } 


     }); 

但progressDialog.dismiss（）;不工作:(

Answer 1

我认为你应该做PD.show()只有一次，不是每次onProgressChanged()你有可能运行十几个的PD

编辑：。为了更精确：你做pd.show()当你开始无论你做什么，在onProgressChanged()更新一些内容（加载百分比或其他）与setProgress()你的进度。

Answer 2

public void onProgressChanged(WebView view, int progress) 
     { 
      activity.setTitle("Loading..."); 
      activity.setProgress(progress + 100); 
      progressDialog = ProgressDialog.show(MainActivity.this, "", "Loading..."); 



      if(progress == 100) 
      { 
       activity.setTitle(mainWebView.getTitle()); 
        progressDialog.dismiss(); 
      } 


     } 


    }); 

Answer 3

看到这个简单的演示将显示ProgressDialog的每一步。

public class AsyntaskActivity extends Activity { 
final Activity activity = this; 
private WebView webView; 
private AlertDialog alert; 
private Builder builder; 
protected void onCreate(Bundle savedInstanceState) {  
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    webView = (WebView)findViewById(R.id.tview); 

    webView.setWebViewClient(new WebViewClient(){   
     @Override   
     public void onLoadResource(WebView view, String url) {    
      super.onLoadResource(view, url);   
     }   
     @Override   
     public void onPageFinished(WebView view, String url) {    
      super.onPageFinished(view, url);    
      alert.setTitle("Finish Loading. . ."); 
      alert.dismiss(); 
     }   
     @Override   
     public void onPageStarted(WebView view, String url, Bitmap favicon) {    
      super.onPageStarted(view, url, favicon);    
      alert.setTitle("Start Loading. . . ");   
     }  
    });  
    webView.setWebChromeClient(new WebChromeClient(){});  
    webView.loadUrl("http://www.google.com");  
    builder=new AlertDialog.Builder(this);  
    builder.setTitle("Loading...");  
    alert=builder.create();  
    alert.show(); 
} 

@Override protected void onDestroy() {  
    super.onDestroy(); 
} 
@Override protected void onPause() {  
    super.onPause(); 
} 

}