Android底部导航栏实现（一）之BottomNavigationBar

Android Android, 底部导航栏, 移动开发 评论

BottomNavigationBar这个控件的使用之前已经写过，这里不再赘述，详情请参考BottomNavigationBar的使用。

下面直接上代码：

初始化及相关设置：

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mBottomNavigationBar = (BottomNavigationBar) view.findViewById(R.id.bottom_navigation_bar);
  mBottomNavigationBar.setBackgroundStyle(BottomNavigationBar.BACKGROUND_STYLE_STATIC);
  mBottomNavigationBar.setMode(BottomNavigationBar.MODE_FIXED);

  mBottomNavigationBar.addItem(new BottomNavigationItem(R.drawable.home_fill, getString(R.string.item_home)).setInactiveIconResource(R.drawable.home).setActiveColorResource(R.color.colorPrimary).setInActiveColorResource(R.color.black_1))
          .addItem(new BottomNavigationItem(R.drawable.location_fill, getString(R.string.item_location)).setInactiveIconResource(R.drawable.location).setActiveColorResource(R.color.colorPrimary).setInActiveColorResource(R.color.black_1))
          .addItem(new BottomNavigationItem(R.drawable.like_fill, getString(R.string.item_like)).setInactiveIconResource(R.drawable.like).setActiveColorResource(R.color.colorPrimary).setInActiveColorResource(R.color.black_1))
          .addItem(new BottomNavigationItem(R.drawable.person_fill, getString(R.string.item_person)).setInactiveIconResource(R.drawable.person).setActiveColorResource(R.color.colorPrimary).setInActiveColorResource(R.color.black_1))
          .setFirstSelectedPosition(0)
          .initialise();

  mBottomNavigationBar.setTabSelectedListener(this);

  setDefaultFragment();

Tab的切换：

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@Override
public void onTabSelected(int position) {
    FragmentTransaction beginTransaction = getFragmentManager().beginTransaction();

    switch (position) {
        case 0:
            if (mHomeFragment == null) {
                mHomeFragment = HomeFragment.newInstance(getString(R.string.item_home));
            }
            beginTransaction.replace(R.id.sub_content, mHomeFragment);
            break;
        case 1:
            if (mLocationFragment == null) {
                mLocationFragment = LocationFragment.newInstance(getString(R.string.item_location));
            }
            beginTransaction.replace(R.id.sub_content, mLocationFragment);
            break;
        case 2:
            if (mLikeFragment == null) {
                mLikeFragment = LikeFragment.newInstance(getString(R.string.item_like));
            }
            beginTransaction.replace(R.id.sub_content, mLikeFragment);
            break;
        case 3:
            if (mPersonFragment == null) {
                mPersonFragment = PersonFragment.newInstance(getString(R.string.item_person));
            }
            beginTransaction.replace(R.id.sub_content, mPersonFragment);
    }
    beginTransaction.commit();

}

说明：这几篇文章没有过多的文字叙述，因为这些东西也不是很难，而且都是常用的，相信很多人都了如指掌了，多说亦是废话，直接上代码看的反而更清楚。

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