notes

switch (mViewFlags&VISIBILITY_MASK) {
            case VISIBLE: out.append('V'); break;
            case INVISIBLE: out.append('I'); break;
            case GONE: out.append('G'); break;
            default: out.append('.'); break;
        }
        out.append((mViewFlags & FOCUSABLE) == FOCUSABLE ? 'F' : '.');
        out.append((mViewFlags&ENABLED_MASK) == ENABLED ? 'E' : '.');
        out.append((mViewFlags&DRAW_MASK) == WILL_NOT_DRAW ? '.' : 'D');
        out.append((mViewFlags&SCROLLBARS_HORIZONTAL) != 0 ? 'H' : '.');
        out.append((mViewFlags&SCROLLBARS_VERTICAL) != 0 ? 'V' : '.');
        out.append((mViewFlags&CLICKABLE) != 0 ? 'C' : '.');
        out.append((mViewFlags&LONG_CLICKABLE) != 0 ? 'L' : '.');
        out.append((mViewFlags&CONTEXT_CLICKABLE) != 0 ? 'X' : '.');
        out.append(' ');
        out.append((mPrivateFlags&PFLAG_IS_ROOT_NAMESPACE) != 0 ? 'R' : '.');
        out.append((mPrivateFlags&PFLAG_FOCUSED) != 0 ? 'F' : '.');
        out.append((mPrivateFlags&PFLAG_SELECTED) != 0 ? 'S' : '.');
        if ((mPrivateFlags&PFLAG_PREPRESSED) != 0) {
            out.append('p');
        } else {
            out.append((mPrivateFlags&PFLAG_PRESSED) != 0 ? 'P' : '.');
        }
        out.append((mPrivateFlags&PFLAG_HOVERED) != 0 ? 'H' : '.');
        out.append((mPrivateFlags&PFLAG_ACTIVATED) != 0 ? 'A' : '.');
        out.append((mPrivateFlags&PFLAG_INVALIDATED) != 0 ? 'I' : '.');
        out.append((mPrivateFlags&PFLAG_DIRTY_MASK) != 0 ? 'D' : '.');


https://android.googlesource.com/platform/frameworks/base/+/refs/heads/android11-release/core/java/android/view/View.java#6442




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