BottomNavigationBar这个控件之前已经写过，这里不再赘述。具体请参考BottomNavigationBar的使用。下面直接上代码：初始化及相关设置：mBottomNavigationBar=(BottomNavigationBar)view.findViewById(R.id.bottom_navigation_bar);mBottomNavigationBar.setBackgroundStyle(BottomNavigationBar.BACKGROUND_STYLE_STATIC);mBottomNavigationBar.setMode(BottomNavigationBar.MODE_FIXED);mBottomNavigationBar.addItem(newBottomNavigationItem(R.drawable.home_fill,getString(R.string.item_home)).setInactiveIconResource(R.drawable.home).setActiveColorResource(R.color.colorPrimary).setInActiveColorResource(R.color.black_1)).addItem(newBottomNavigationItem(R.drawable.location_fill，getString（R.string.item_location）。setInactiveIconResource（R.drawable.location）。setActiveColorResource（R.color.colorPrimary）。setInActiveColorResource（R.color.black_1））。like_fill，getString（R.string.item_like））。setInactiveIconResource（R.drawable.like）。setActiveColorResource（R.color.colorPrimary）。setInActiveColorResource（R.color.black_1））。addItem（newBottomNavigationItem（R.drawable.person_fill,getString(R.string.item_person)).setInactiveIconResource(R.drawable.person).setActiveColorResource(R.color.colorPrimary).setInActiveColorResource(R.color.black_1)).setFirstSelectedPosition(0).初始化();mBottomNavigationBar.setTabSelectedListener(this);setDefaultFragment();Tab的切换：@OverridepublicvoidonTabSelected(intposition){FragmentTransactionbeginTransaction=getFragmentManager().beginTransaction();switch(position){case0:if(mHomeFragment==null){mHomeFragment=HomeFragment.newInstance(getString(R.string.item_home));}beginTransaction.replace(R.id.sub_content,mHomeFragment);break;case1:if(mLocationFragment==null){mLocationFragment=LocationFragment.newInstance(getString(R.string.item_location));}beginTransaction.replace(R.id.sub_content,mLocationFragment);break;case2:if(mLikeFragment==null){mLikeFragment=LikeFragment.newInstance(getString(R.string.item_like));}beginTransaction。替换（R.id.sub_content，mLikeFragment）；中断；case3：如果(mPersonFragment==null){mPersonFragment=PersonFragment.newInstance(getString(R.string.item_person));}beginTransaction.replace(R.id.sub_content,mPersonFragment);}beginTransaction.commit();}说明：这些文章文章没有过多的文字说明，因为这些东西都不难，而且常用。相信很多人都不陌生。说多了都是废话。直接看代码更清楚。
