compile 'com.hjm:BottomTabBar:1.1.1'

<com.hjm.bottomtabbar.BottomTabBar  android:id="@+id/bottom_tab_bar"  android:layout_width="match_parent"  android:layout_height="match_parent"  ></com.hjm.bottomtabbar.BottomTabBar>

public class OneFragment extends Fragment{  @Nullable  @Override  public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {    View view = inflater.inflate(R.layout.fragment1, container, false);    return view;  }}

//Fragment頁面設置頁public class MainActivity extends AppCompatActivity {  private BottomTabBar bottomTabBar;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    bottomTabBar = findViewById(R.id.bottom_tab_bar);    //初始化Fragment    bottomTabBar.init(getSupportFragmentManager())        .setImgSize(50, 50)   //圖片大小        .setFontSize(12)            //字體大小        .setTabPadding(4, 6, 10)//選項卡的間距        .setChangeColor(Color.RED, Color.BLUE)   //選項卡的選擇顏色        .addTabItem("首頁", R.drawable.home_, ShouYe_Fragment.class)        .addTabItem("分類", R.drawable.classify, FenLei_Fragment.class)        .addTabItem("發現", R.drawable.cart, Cart_Fragment.class)        .addTabItem("我的", R.drawable.mine, Mine_Fragment.class)        .isShowDivider(true)  //是否包含分割線        .setOnTabChangeListener(new BottomTabBar.OnTabChangeListener() {          @Override          public void onTabChange(int position, String name) {            Log.i("TGA", "位置：" + position + "   選項卡：" + name);          }        });  }}

<com.hjm.bottomtabbar.BottomTabBar     android:id="@+id/bottomTabBar"     android:layout_width="match_parent"     android:layout_height="match_parent">   </com.hjm.bottomtabbar.BottomTabBar> 

public class MainActivity extends AppCompatActivity {   @BindView(R.id.bottomtabbar)   BottomTabBar bottomtabbar;   @Override   protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.activity_main);     ButterKnife.bind(this);     bottomtabbar.init(getSupportFragmentManager())         .setImgSize(25, 25)         .setFontSize(8)         .setTabPadding(4, 6, 10)         .setChangeColor(Color.RED, Color.BLACK)         .addTabItem("精選", R.drawable.choiceness, ChoicenessFragment.class)         .addTabItem("專題", R.drawable.dissertation, DissertationFragment.class)         .addTabItem("發現", R.drawable.discover, DiscoverFragment.class)         .addTabItem("我的", R.drawable.my, MyFragment.class)         .isShowDivider(false)         .setOnTabChangeListener(new BottomTabBar.OnTabChangeListener() {           @Override           public void onTabChange(int position, String name) {           }         })         .setTabBarBackgroundResource(R.drawable.bottom_bg)         .setBackgroundResource(R.drawable.bg_blue);   } }