Android WebViewClient onReceivedError is not called for a 404 error

Question

hi
In a list view i have an webview which should load a image file from the server,when there is no image present i need a dummy image .I tried

holder.imag         


        

Answer 1

@Neeraj is on the right track, but my app allows a refresh of the webview, so I need to clear the error state before any new URL load. Furthermore, the error flag must be stored as a data member on the parent activity so that it persists during onPageStart() and onPageFinish()--those methods can be called after onError().

public class MyActivity extends Activity {
    private boolean isError;
    ...
    protected void onResume() {
        super.onResume();
        isError = false;
        myWebView.loadUrl(myUrl);
    }

    public class MyWebViewClient extends WebViewClient {
    /**
     * can be called even after error (embedded images?), so error flag must keep state as data-member in activity, cleared by activity before each loadUrl();          
     */
      @Override
      public void onPageFinished(WebView view, String url) {
        if (!isError)
            showContent();
      }

      @Override
      public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
        isError = true;
        showError();
      }