ChanphengHor

ViewTreeObserver observer = scrollView.getViewTreeObserver(); observer.addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener(){ @Override public void onScrollChanged() { scrollX = scrollView.getScrollX(); scrollY = scrollView.getScrollY(); } }); //=======================================================/ mRichEditor.addOnLayoutChangeListener(new View.OnLayoutChangeListener() { @Override public void onLayoutChange(View v, int left,...