import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
public class chengji extends Activity {
private WebView wv;
private ProgressBar progressBar;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.webview);
progressBar = (ProgressBar) findViewById(R.id.pro);
wv = (WebView) findViewById(R.id.webview);
wv.getSettings().setAllowFileAccess(true);
wv.getSettings().setJavaScriptEnabled(true);
wv.loadUrl("http://www.gdousu.com/wap/tools/grade.aspx");
wv.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
if (wv.getContentHeight() != 0) {
}
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
wv.setWebChromeClient(new WebChromeClient() {
@Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
if (newProgress == 0) {
progressBar.setVisibility(View.VISIBLE);
}
progressBar.setProgress(newProgress);
progressBar.postInvalidate();
if (newProgress == 100) {
progressBar.setVisibility(View.GONE);
}
}
});
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK && wv.canGoBack()) {
wv.goBack();
return true;
} else
return super.onKeyDown(keyCode, event);
}
}
本文题目:安卓webview
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