Android - Material Design - NavigationView ScrollBar和Thumb Color

时间:2017-02-05 06:19:53

标签: android material-design android-navigationview

有没有办法自定义NavigationView滚动条和拇指颜色 现在它被报告为bug并且无法自定义。错误的链接是here

有没有人在导航视图的滚动视图中进行自定义分享。

1 个答案:

答案 0 :(得分:0)

经过几个小时的RnD后,我发现这个解决方案有助于动态改变拇指颜色而不是xml

 private void navigationViewScrollThumbColor(NavigationView navigationView) {

    if (navigationView != null) {
        NavigationMenuView navigationMenuView = (NavigationMenuView) navigationView.getChildAt(0);
        if (navigationMenuView != null) {
            try {
                Field mScrollCacheField = View.class.getDeclaredField("mScrollCache");
                mScrollCacheField.setAccessible(true);
                Object mScrollCache = mScrollCacheField.get(navigationMenuView);

                Field scrollBarField = mScrollCache.getClass().getDeclaredField("scrollBar");
                scrollBarField.setAccessible(true);
                Object scrollBar = scrollBarField.get(mScrollCache);

                Method method = scrollBar.getClass().getDeclaredMethod("setVerticalThumbDrawable", Drawable.class);
                method.setAccessible(true);
                method.invoke(scrollBar, getResources().getDrawable(R.drawable.color_of_your_Choice));
            } catch (Exception e) {
                e.printStackTrace();
            }

        }
    }
}