Android底部导航栏实现（一）之BottomNavigati

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。

这里写图片描述 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(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);

Tab的切换：

@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); 
} 
break;
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。

DownLoad Demo