Обнаружение просмотра в ScrollView Android
// consider that your ScrollView is scrollView
Rect scrollBounds = new Rect();
scrollView.getHitRect(scrollBounds);
if (imageView.getLocalVisibleRect(scrollBounds)) {
// Any portion of the imageView, even a single pixel,
//is within the visible window
} else {
// NONE of the imageView is within the visible window
}
Mohamed Boumlyk