private void Slidingdrawerfunc() {

    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    // set a custom shadow that overlays the main content when the drawer
    // opens
    //   mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
    // set up the drawer's list view with items and click listener
    mDrawerLayout.setScrimColor(Color.TRANSPARENT);
  }
  @Override
  public void onCheckedChanged(RadioGroup group, int checkedId) {
    if (checkedId == R.id.rbtn_pink) {
      mDrawer.setScrimColor(getResources().getColor(R.color.color_e81d62)); // 设置滑动时渐变的阴影颜色

    } else if (checkedId == R.id.rbtn_green) {
      mDrawer.setScrimColor(getResources().getColor(R.color.color_4bae4f));

    } else if (checkedId == R.id.rbtn_blue) {
      mDrawer.setScrimColor(getResources().getColor(R.color.color_2095f2));

    } else if (checkedId == R.id.rbtn_from_left) {
      mDrawer.openDrawer(Gravity.LEFT); // 打开菜单栏

    } else if (checkedId == R.id.rbtn_from_right) {
      mDrawer.openDrawer(Gravity.RIGHT);
    }
  }
 private void setupDrawerLayout() {
   mDrawerLayout = find(R.id.drawer_layout, DrawerLayout.class);
   mDrawerLayout.setScrimColor(Color.TRANSPARENT);
 }