WebView in dialog (asset loading) and not laid out

Question

I am on Android 2.2 and I am creating a dialog with a WebView inside it:

 @Override protected Dialog onCreateDialog(int id) { Dialog dialog = new Dialog(this); //..... dialog.setContentView(R.layout.dialoghelp); WebView v = (WebView)dialog.findViewById(R.id.helpWebView); v.loadUrl("file:///android_asset/help.html"); //...... return dialog; } 

It works, but the first time I open the dialog, the WebView not exposed, even if the content is loaded.

I know this because with HierarchyViewer I can see the contents and force the layout request, which I also see in the emulator. Also, if I just canceled the dialog and reopened it, everything will work.

Who is wrong, Android or me? I tried putting the load in onPrepareDialog() , but this is the same.

EDIT

I changed the parameters of the WebView layout from fill_parent to wrap_content and that way it works. I see that it opens with a growth of 0, and then after loading it grows. Width worked even earlier.

Answer 1

Well, I think you might have to redefine the Dialog class, something like that implemented in facebook sdk: -

there is a code

public class FbDialog extends the {

 static final int FB_BLUE = 0xFF6D84B4; static final float[] DIMENSIONS_DIFF_LANDSCAPE = {20, 60}; static final float[] DIMENSIONS_DIFF_PORTRAIT = {40, 60}; static final FrameLayout.LayoutParams FILL = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT); static final int MARGIN = 4; static final int PADDING = 2; static final String DISPLAY_STRING = "touch"; static final String FB_ICON = "icon.png"; private String mUrl; private DialogListener mListener; private ProgressDialog mSpinner; private ImageView mCrossImage; private WebView mWebView; private FrameLayout mContent; public FbDialog(Context context, String url, DialogListener listener) { super(context, android.R.style.Theme_Translucent_NoTitleBar); mUrl = url; mListener = listener; } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mSpinner = new ProgressDialog(getContext()); mSpinner.requestWindowFeature(Window.FEATURE_NO_TITLE); mSpinner.setMessage("Loading..."); requestWindowFeature(Window.FEATURE_NO_TITLE); mContent = new FrameLayout(getContext()); /* Create the 'x' image, but don't add to the mContent layout yet * at this point, we only need to know its drawable width and height * to place the webview */ createCrossImage(); /* Now we know 'x' drawable width and height, * layout the webivew and add it the mContent layout */ int crossWidth = mCrossImage.getDrawable().getIntrinsicWidth(); setUpWebView(crossWidth / 2); /* Finally add the 'x' image to the mContent layout and * add mContent to the Dialog view */ mContent.addView(mCrossImage, new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); addContentView(mContent, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); } private void createCrossImage() { mCrossImage = new ImageView(getContext()); // Dismiss the dialog when user click on the 'x' mCrossImage.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mListener.onCancel(); FbDialog.this.dismiss(); } }); Drawable crossDrawable = getContext().getResources().getDrawable(R.drawable.close); mCrossImage.setImageDrawable(crossDrawable); /* 'x' should not be visible while webview is loading * make it visible only after webview has fully loaded */ mCrossImage.setVisibility(View.INVISIBLE); } private void setUpWebView(int margin) { LinearLayout webViewContainer = new LinearLayout(getContext()); mWebView = new WebView(getContext()); mWebView.setVerticalScrollBarEnabled(false); mWebView.setHorizontalScrollBarEnabled(false); mWebView.setWebViewClient(new FbDialog.FbWebViewClient()); mWebView.getSettings().setJavaScriptEnabled(true); mWebView.loadUrl(mUrl); mWebView.setLayoutParams(FILL); mWebView.setVisibility(View.INVISIBLE); mWebView.getSettings().setSavePassword(false); webViewContainer.setPadding(margin, margin, margin, margin); webViewContainer.addView(mWebView); mContent.addView(webViewContainer); } private class FbWebViewClient extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { Util.logd("Facebook-WebView", "Redirect URL: " + url); if (url.startsWith(Facebook.REDIRECT_URI)) { Bundle values = Util.parseUrl(url); String error = values.getString("error"); if (error == null) { error = values.getString("error_type"); } if (error == null) { mListener.onComplete(values); } else if (error.equals("access_denied") || error.equals("OAuthAccessDeniedException")) { mListener.onCancel(); } else { mListener.onFacebookError(new FacebookError(error)); } FbDialog.this.dismiss(); return true; } else if (url.startsWith(Facebook.CANCEL_URI)) { mListener.onCancel(); FbDialog.this.dismiss(); return true; } else if (url.contains(DISPLAY_STRING)) { return false; } // launch non-dialog URLs in a full browser getContext().startActivity( new Intent(Intent.ACTION_VIEW, Uri.parse(url))); return true; } @Override public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { super.onReceivedError(view, errorCode, description, failingUrl); mListener.onError( new DialogError(description, errorCode, failingUrl)); FbDialog.this.dismiss(); } @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { Util.logd("Facebook-WebView", "Webview loading URL: " + url); super.onPageStarted(view, url, favicon); mSpinner.show(); } @Override public void onPageFinished(WebView view, String url) { super.onPageFinished(view, url); mSpinner.dismiss(); /* * Once webview is fully loaded, set the mContent background to be transparent * and make visible the 'x' image. */ mContent.setBackgroundColor(Color.TRANSPARENT); mWebView.setVisibility(View.VISIBLE); mCrossImage.setVisibility(View.VISIBLE); } } 

}