WebView linear progress bar, webview linear

WebView linear progress bar, webview linear

Reference: http://www.cnblogs.com/hubli/p/4835549.html

When the APP jumps to the web page, see: http://blog.csdn.net/raphael55/article/details/6975918

:

1. wevbview_progressbar.xml

<Layer-list xmlns: android = "http://schemas.android.com/apk/res/android">
<! -- Background -->
<Item android: id = "@ android: id/background">
<Shape>
<Solid android: color = "@ android: color/transparent"/>
</Shape>
</Item>
<! -- Progress bar -->
<Item android: id = "@ android: id/progress">
<Clip>
<Shape>
<Solid android: color = "@ android: color/holo_green_light"/>
</Shape>
</Clip>
</Item>
</Layer-list>

2. ProgressWebView. java

@ SuppressWarnings ("deprecation ")
Public class ProgressWebView extends WebView {
Private final static String TAG = ProgressWebView. class. getSimpleName ();

Private ProgressBar progressBar;
Private Context context;

Public ProgressWebView (Context context, AttributeSet attrs ){
Super (context, attrs );
This. context = context;
ProgressBar = new ProgressBar (context, null, android. R. attr. progressBarStyleHorizontal );
ProgressBar. setLayoutParams (new AbsoluteLayout. LayoutParams (AbsoluteLayout. LayoutParams. MATCH_PARENT, 3, 0, 0 ));
ProgressBar. setProgressDrawable (getResources (). getDrawable (R. drawable. wevbview_progressbar ));
AddView (progressBar );
SetWebChromeClient (new WebChromeClient ());
}

Public class WebChromeClient extends android. webkit. WebChromeClient {
@ Override
Public void onProgressChanged (WebView view, int newProgress ){
Log. d (TAG, "newProgress" + newProgress );
If (newProgress = 100 ){
ProgressBar. setVisibility (GONE );
} Else {
If (progressBar. getVisibility () = GONE)
ProgressBar. setVisibility (VISIBLE );
ProgressBar. setProgress (newProgress );
}
Super. onProgressChanged (view, newProgress );
}

// Process console. log in javascript
@ Override
Public boolean onConsoleMessage (ConsoleMessage cm ){
Android. util. log. d (TAG, "webview console" + cm. lineNumber () + "of" + cm. sourceId () + ":" + cm. message ());
Return true;
}

// Process alert () in javascript ()
@ Override
Public boolean onJsAlert (WebView view, String url, String message, JsResult result ){
Result. cancel ();
Return true;
}

}

@ Override
Protected void onScrollChanged (int l, int t, int oldl, int oldt ){
LayoutParams lp = (LayoutParams) progressBar. getLayoutParams ();
Lp. x = l;
Lp. y = t;
ProgressBar. setLayoutParams (lp );
Super. onScrollChanged (l, t, oldl, oldt );
}
}

3. MainActivity. java

ProgressWebView webView = (ProgressWebView)findViewById(R.id.them_webview);

webView.getSettings().setJavaScriptEnabled(true);

webView.setDownloadListener(new DownloadListener() {
    @Override
    public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
        if (url != null && url.startsWith("http://"))
            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
    }
});
webView.loadUrl("http://www.cnblogs.com/hubli/p/4835549.html");

4. activity_main.xml

<com.etoury.webviewprogress.ProgressWebView
             android:id="@+id/them_webview"
              android:layout_width="match_parent"
              android:layout_height="match_parent" />