android - Implement onScrollChanged Event -

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i have absolutelayout xml:

<absolutelayout   xmlns:android="http://schemas.android.com/apk/res/android"   android:id="@+id/measureabslayout"     android:layout_width="fill_parent"   android:layout_height="fill_parent">      <imageview android:id="@+id/measureimageview"         android:layout_width="fill_parent"          android:layout_height="fill_parent">     </imageview>      <relativelayout     android:layout_width="wrap_content"     android:layout_height="wrap_content">         <button android:text="previous"              android:layout_height="wrap_content"              android:id="@+id/measureprev"                        android:layout_alignparentbottom="true"             android:layout_width="wrap_content">         </button>          <button android:text="result"             android:layout_height="wrap_content"              android:id="@+id/measureresult"                      android:layout_alignparentright="true"             android:layout_alignparentbottom="true"             android:layout_width="wrap_content">         </button>     </relativelayout> </absolutelayout>

i want implement absolutelayout's onscrollchanged in activity class.

how can implement this?


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