Android: how to check if a View inside of ScrollView is visible?

This works:

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}

Use View#getHitRect instead of View#getDrawingRect on the view you're testing. You can use View#getDrawingRect on the ScrollView instead of calculating explicitly.

Code from View#getDrawingRect:

 public void getDrawingRect(Rect outRect) {        outRect.left = mScrollX;        outRect.top = mScrollY;        outRect.right = mScrollX + (mRight - mLeft);        outRect.bottom = mScrollY + (mBottom - mTop); }

Code from View#getHitRect:

public void getHitRect(Rect outRect) {        outRect.set(mLeft, mTop, mRight, mBottom);}

If you want to detect that the view is FULLY visible:

private boolean isViewVisible(View view) {    Rect scrollBounds = new Rect();    mScrollView.getDrawingRect(scrollBounds);    float top = view.getY();    float bottom = top + view.getHeight();    if (scrollBounds.top < top && scrollBounds.bottom > bottom) {        return true;    } else {        return false;    }}