Change view height during scroll

[pawelantczak]

Hello.
I have two views. One is ImageView and the other is ObservableListView. Both wrapper in group view:

<android.support.v4.widget.SwipeRefreshLayout
    android:id="@+id/refresh"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="org.antczak.whereIsMyPackage.activity.DetailsActivity">


    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <ImageView
            android:id="@+id/infos"
            android:src="@drawable/bamboo"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:scaleType="centerCrop"/>

        <com.github.ksoichiro.android.observablescrollview.ObservableListView
            android:id="@+id/scroll"
            android:layout_below="@id/infos"
            android:layout_width="match_parent"
            android:layout_height="fill_parent"/>

    </RelativeLayout>
</android.support.v4.widget.SwipeRefreshLayout>

What I want to achieve is to gradually hide image during list scrolling. Using ViewHelper.setTranslationY I'm able to slide up image, but it's container is still there.
I want the list to fill space which image released.
Now it looks like one screenshot
How to reduce image container height during scroll?

[ksoichiro]

Sorry for my late reply.
Have you solved your issue?
I think one of the following might solve your issue...

• Resize ListView on onScrollChanged
  • Like this: listView.getLayoutParams().height = xxx; listView.requestLayout();
  • But this might cause bad scrolling animation
• Set transparent padding view as the header to the ListView
  • Like FlexibleSpaceWithImageListViewActivity (in the sample app) does

[theonlyanil]

I could only achieve to make the listView scroll along with imageView. But it maintains its height, causing blank space on bottom.