Android: WebView加载网页的几种方式及网络异常处理
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1.加载本地assert目录下文件（error.html）
webcontent.loadUrl（" file:///android_asset/error.html "）;
2.加载网络url（http://www.csdn.com）
webcontent.loadUrl（" http://www.csdn.com "）;
3.加载 String 类型html
StringerrorHtml = "<html><body><h1>Page not find!</h1></body></html>";
webcontent.loadData(errorHtml, "text/html", "UTF-8");
4.加载SD卡html:
webcontent.loadUrl（" content://com.android.htmlfileprovider/sdcard/kris.html "）;
异常处理：
webcontent.setWebViewClient(new WebViewClient(){
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
Log.i("webview", "url = "+url);
view.loadUrl(url);
return true;
}
@Override
public void onReceivedError(WebView view, int errorCode,
String description, String failingUrl) {
super.onReceivedError(view, errorCode, description, failingUrl);
//这里进行无网络或错误处理，具体可以根据errorCode的值进行判断，做跟详细的处理。
view.loadUrl(file:///android_asset/error.html );
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
Log.i("onPageStarted", url);
super.onPageStarted(view, url, favicon);
}
@Override
public void onPageFinished(WebView view, String url) {
Log.i("onPageFinished", url);
super.onPageFinished(view, url);
}
});