HorizontalScrollView: auto-scroll to end when new Views are added?

Question

I have a HorizontalScrollView containing a LinearLayout. On screen I have a Button that will add new Views to the LinearLayout at runtime, and I\'d like the scroll view to

Answer 1

I agree with @monxalo and @granko87 that the better approach is with a listener instead of making an assumption that the layout will be complete if we let some arbitrary amount of time pass.

In case, like me, you don't need to use a custom HorizontalScrollView subclass you can just add an OnLayoutChangeListener to keep things simple:

mTagsScroller.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
    @Override
    public void onLayoutChange(View view, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
        mTagsScroller.removeOnLayoutChangeListener(this);
        mTagsScroller.fullScroll(View.FOCUS_RIGHT);
    }
});