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我想构建下面的教程代码,我有两个选项卡,每个都显示一个webview里面的代码里面。标题和进度条在标题android
但是,进度条不起作用显示在标题栏了。它只适用于我单独查看webviews的情况,但是当我使用tabhost并将它们放在一起时不起作用。我喜欢标题中的进度条,并且非常希望它能够正常工作。
我很新,所以任何提示或提示都很有帮助。
package firsrdroid.tutorial.mywebview;
import android.app.Activity;
import android.os.Bundle;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
public class UsingMyWebview extends Activity {
WebView mWebView;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// Adds Progrss bar Support
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
// Makes Progress bar Visible
getWindow().setFeatureInt(Window.FEATURE_PROGRESS, Window.PROGRESS_VISIBILITY_ON);
// Get Web view
mWebView = (WebView) findViewById(R.id.MyWebview); //This is the id you gave
//to the WebView in the main.xml
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.getSettings().setSupportZoom(true); //Zoom Control on web (You don't need this
//if ROM supports Multi-Touch
mWebView.getSettings().setBuiltInZoomControls(true); //Enable Multitouch if supported by ROM
// Load URL
mWebView.loadUrl("http://www.firstdroid.com/advertisement.htm");
// Sets the Chrome Client, and defines the onProgressChanged
// This makes the Progress bar be updated.
final Activity MyActivity = this;
mWebView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress)
{
//Make the bar disappear after URL is loaded, and changes string to Loading...
MyActivity.setTitle("Loading...");
MyActivity.setProgress(progress * 100); //Make the bar disappear after URL is loaded
// Return the app name after finish loading
if(progress == 100)
MyActivity.setTitle(R.string.app_name);
}
});
}//End of Method onCreate
}