Question

我有一个带有ProgressDialog的WebView，所以我的问题是在加载网站后ProgressDialog没有结束。 ProgressDialog不会解雇。我使用此代码

public class MainActivity extends Activity {
private WebView webView;
ProgressDialog mProgress;

@SuppressLint("SetJavaScriptEnabled")
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    webView = (WebView) findViewById(R.id.webView1);
    webView.getSettings().setJavaScriptEnabled(true);
    mProgress = ProgressDialog.show(this, "Loading", "Bitte warten...");
    mProgress.setMax(100);
    webView.setWebViewClient(new WebViewClient() {
         });
         webView.setWebViewClient(new WebViewClient() {
           public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
             Toast.makeText(MainActivity.this, "Oh no! " + description, Toast.LENGTH_SHORT).show();
           }
         });

         webView.loadUrl("http://google.de/");
}
public class myWebClient extends WebViewClient
{
    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {
        // TODO Auto-generated method stub
        super.onPageStarted(view, url, favicon);
    }

    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        // TODO Auto-generated method stub
        view.loadUrl(url);
        return true;

    }

    @Override
    public void onPageFinished(WebView view, String url) {
        // TODO Auto-generated method stub
         if(mProgress.isShowing()) {
             mProgress.hide();
         }
    }
}

希望有人能帮我解决这个问题

Answer 1

删除此行：

webView.setWebViewClient(new WebViewClient() { });

并替换

webView.setWebViewClient(new WebViewClient() { 
  public void onReceivedError(WebView view, int errorCode, String                             description, String failingUrl) {
    Toast.makeText(MainActivity.this, "Oh no! " + description, Toast.LENGTH_SHORT).show();
  }
});

与

webView.setWebViewClient(new myWebClient (){
  public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
    Toast.makeText(MainActivity.this, "Oh no! " + description, Toast.LENGTH_SHORT).show();
  }
});

Answer 2

使用myWebClient类对象覆盖onPageFinished方法来设置WebViewClient：

webView.setWebViewClient(new myWebClient());

并删除webView.setWebViewClient的第二次调用。

Android WebView进度对话框未结束

2 个答案: