Android底部導航欄實現（一）之BottomNavigationBar

BottomNavigationBar這個控件的使用以前已經寫過，這裏再也不贅述，詳情請參考BottomNavigationBar的使用。

下面直接上代碼：

初始化及相關設置：

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);

        setDefaultFragment();

Tab的切換：

@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();

    }

說明：這幾篇文章沒有過多的文字敘述，由於這些東西也不是很難，並且都是經常使用的，相信不少人都瞭如指掌了，多說亦是廢話，直接上代碼看的反而更清楚。

DownLoad Demo