Android WebView Sample code with a progress bar _android

Objective

If you do not use the system-titlebar (that is, the activity is set @android:style/theme.notitlebar), you need to write the progress bar yourself, which encapsulates a custom control and a public activity that loads the Web page for ease of use.

Body

One, screenshot

Two, custom controls

Copy Code/** * WebView * * * http://www.cnblogs.com/over140/archive/2013/03/07/2947721.html with progress bar */@SuppressWarnings ("DEP

 Recation ") public class Progresswebview extends WebView {private ProgressBar ProgressBar;
  Public Progresswebview (context, AttributeSet attrs) {Super (context, attrs); ProgressBar = new ProgressBar (context, NULL, Android.)
  R.attr.progressbarstylehorizontal);
  Progressbar.setlayoutparams (New Layoutparams (layoutparams.fill_parent, 3, 0, 0));
  AddView (ProgressBar);
  Setwebviewclient (New Webviewclient () {});
 Setwebchromeclient (New Webchromeclient ()); The public class Webchromeclient extends Android.webkit.WebChromeClient {@Override the public void onprogresschanged (WEBV
   Iew view, int newprogress) {if (newprogress = =) {progressbar.setvisibility (GONE);
    else {if (progressbar.getvisibility () = = GONE) progressbar.setvisibility (VISIBLE);
   Progressbar.setprogress (newprogress); } super.onprogresschanged (View, NewprogreSS); } @Override protected void onscrollchanged (int l, int t, int oldl, int Oldt) {layoutparams LP = (layoutparams) p
  Rogressbar.getlayoutparams ();
  lp.x = l;
  LP.Y = t;
  PROGRESSBAR.SETLAYOUTPARAMS (LP);
 Super.onscrollchanged (L, T, OLDL, Oldt); Copy Code

Third, the public activity that loads the Web page

 public class Webactivity extends Baseactivity {private Progresswebview webview;
 Private String URL;

 private String name;
  @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);

  Setcontentview (R.layout.commom_web);
  ~ ~ ~ Get Parameter URL = getintent (). Getstringextra ("url");

  Name = Getintent (). Getstringextra ("name");

  ~ ~ ~ Bound Control WebView = (Progresswebview) Findviewbyid (R.id.webview);
  ~ ~ ~ Set the data titletext.settext (name);
  Webview.getsettings (). Setjavascriptenabled (True); Webview.setdownloadlistener (New Downloadlistener () {@Override public void Ondownloadstart (string url, string Userag ENT, String contentdisposition, String mimetype, long contentlength) {if (URL!= null && url.startswith ("http
   ://")) StartActivity (New Intent (Intent.action_view, Uri.parse (URL)));

  }
  });
 Webview.loadurl (URL); }
}

Commom_web.xml

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android=
"http://schemas.android.com/apk/" Res/android "
 android:layout_width=" fill_parent "
 android:layout_height=" fill_parent "
 android:o" rientation= "vertical" >

 <include layout= "@layout/include_title"/>

 < Com.nmbb.ui.widget.ProgressWebView
  android:id= "@+id/webview"
  android:layout_width= "Fill_parent"
  android:layout_height= "Fill_parent"/>

</LinearLayout>

Iv. Supplementary Notes

1, can also be optimized, add a refresh button in the title bar.

2, if the loaded page has the need to download files, you need to set the Setdownloadlistener method, according to the actual needs of the project customization.

3, custom control is reproduced in, forget the source, thank you ~ ~

This article is the Android WebView with a progress bar example, there is a need to refer to the following.