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我有我用loadDataWithBaseURL方法加載網站的問題。我在webview中加載一個準備好的網站。如果我回到之前的活動並開始webview活動,它會使用loadDataWithBaseURL()方法加載相同的準備好的網站,但我得到的網頁內容爲兩倍。例如Hello World和第二個Hello World。 我的代碼是如下:webview每次顯示來自上次loadurl()方法的內容
package de.http.test;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebBackForwardList;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class WebviewActivity extends Activity {
WebView webview;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.mywebview);
Bundle bundle= this.getIntent().getExtras();
String param1 = bundle.getString("Weburl");
getDetailWebsite(param1);
webview = (WebView) findViewById(R.id.webview);
webview.setWebViewClient(new HelloWebViewClient());
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setBuiltInZoomControls(true);
loadWebview();
}
public void loadWebview()
{
webview.clearView();
webview.loadDataWithBaseURL("http://branchenportal-schlitz.de", HttpHelperClass.htmlDetailWebsiteCode, "text/html", "UTF-8", HttpHelperClass.htmlDetailWebsiteCode);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && webview.canGoBack()) {
webview.goBack();
WebBackForwardList mWebBackForwardList = webview.copyBackForwardList();
String historyUrl = mWebBackForwardList.getItemAtIndex(mWebBackForwardList.getCurrentIndex()).getUrl();
if(historyUrl.contains("<html>"))
{
loadWebview();
}
return true;
}
return super.onKeyDown(keyCode, event);
}
private void getDetailWebsite(String url)
{
try{
HttpHelperClass.executeHttpGetDetailWebsite(url,this);
}catch (Exception ex)
{
ex.printStackTrace();
}
}
private class HelloWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
@Override
public void onPageFinished(WebView view, String url) {
if(url.contains("branchenportal-schlitz.de"))
{
view.clearHistory();
}
super.onPageFinished(view, url);
}
}
@Override
protected void onStop() {
webview.clearCache(true);
webview.clearView();
webview.clearHistory();
webview.destroy();
super.onStop();
}
}
是否有任何人誰知道什麼亞姆做錯了什麼? 在此先感謝。 致敬