Question

I am creating a dialog to zoom in on an image,
However, my content is 240px and I would like to resize it to the screen width, to “fill_parent”. Could you tell me what’s wrong here? My picture stays small, 240px, not 480px.

final Dialog dialog = new Dialog(myview);
dialog.setContentView(R.layout.zoom);
dialog.setTitle(""+passInfoNom+" ");
imgView2 = (ImageView)dialog.findViewById(R.id.ImageZoom);
imgView2.setImageDrawable(image);
dialog.show();

Layout:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#ffffffff"
>

<ImageView android:id="@+id/ImageZoom" 
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
</ImageView>
</LinearLayout>

Answer 1

It looks like you have set the content to “fill_parent” but you have not set the size of the dialog to be “fill_parent.” change that and you should see some results.

But i have a question: if you want the zoom dialog to take up the whole screen, why dont you start a new activity, or crop the image and set the cropped portion as the content? it seems weird to me that you would zoom in a dialog. Google maps, for example, just zooms in the existing View.