Webview上的Android进度栏出现两次 [英] Android progressbar on webview appearing twice
本文介绍了Webview上的Android进度栏出现两次的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试使用progress bar
为android创建一个简单的应用程序.一切正常.但是,这里有两个问题
I'm trying to create a simple app for android with progress bar
. Everything works fine. But, here two issues
1)启动应用程序后,我可以看到两次加载进度.
1) When the application is launched i can see progress loading twice.
2)在初始页面完成加载后,如何禁用进度栏.我不想在每次点击时显示进度栏.
2) How can i disable the progress bar after the initial page is finished loading. I dont want to show the progressbar on each click..
这是我的代码
package com.mycom.jquery;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class HelloWebView extends Activity {
WebView webview;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
getWindow().setFeatureInt(Window.FEATURE_PROGRESS,
Window.PROGRESS_VISIBILITY_ON);
webview = (WebView) findViewById(R.id.webview);
webview.getSettings().setJavaScriptEnabled(true);
webview.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
final Activity activity = this;
final ProgressDialog progressDialog = new ProgressDialog(activity);
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setMessage("Loading...Jquery.com");
progressDialog.setCancelable(true);
webview.loadUrl("http://www.jquery.com");
// WebChromeClient give progress etc info
webview.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
progressDialog.show();
progressDialog.setProgress(0);
activity.setProgress(progress * 1000);
progressDialog.incrementProgressBy(progress);
if (progress == 100 && progressDialog.isShowing())
progressDialog.dismiss();
}
});
}
}
推荐答案
在进度达到100时设置一个标志,然后如果该标志为true
,则立即在您的onProgressChanged
实现中返回.
Set a flag when progress becomes 100, and then if that flag is true
immediately return in your onProgressChanged
implementation.
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