如何在AHBottomNavigation欄中使用ViewPager？

Question

我想用ViewPager從斯坦休伯特的BottomNavigation條https://github.com/aurelhubert/ahbottomnavigation

我有以下代碼：

我activity_main.xml中：

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    app:layout_behavior="@string/appbar_scrolling_view_behavior" 
    tools:context="com.aaron.waller.mrpolitik.MainActivity" 
    android:id="@+id/content_id"> 

    <com.aurelhubert.ahbottomnavigation.AHBottomNavigation 
     android:id="@+id/myBottomNavigation_ID" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_gravity="bottom" 
     android:layout_alignParentBottom="true"/> 


</RelativeLayout> 

和我MainActivity.java：

public class MainActivity extends AppCompatActivity implements AHBottomNavigation.OnTabSelectedListener { 

    AHBottomNavigation bottomNavigation; 




    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     getSupportActionBar().hide(); 




     bottomNavigation = (AHBottomNavigation) findViewById(R.id.myBottomNavigation_ID); 
     bottomNavigation.setOnTabSelectedListener(this); 
     bottomNavigation.setDefaultBackgroundColor(Color.BLUE); 
     this.createNavItems(); 

    } 


    //Create items, add them to bar, set propertied and set current item 
    private void createNavItems() { 
     //CREATE ITEMS 
     AHBottomNavigationItem ohnemundItem = new AHBottomNavigationItem("Parteien", R.drawable.parteienicon); 
     AHBottomNavigationItem grinseItem = new AHBottomNavigationItem("Statistiken", R.drawable.statsicon); 
     AHBottomNavigationItem lachItem = new AHBottomNavigationItem("Fragen", R.drawable.fragenicon); 

     //ADD THEM to bar 
     bottomNavigation.addItem(ohnemundItem); 
     bottomNavigation.addItem(grinseItem); 
     bottomNavigation.addItem(lachItem); 


     //set properties 
     bottomNavigation.setDefaultBackgroundColor(Color.parseColor("#FEFEFE")); 

     //set current item 
     bottomNavigation.setCurrentItem(0); 

    } 

    @Override 
    public void onTabSelected(int position, boolean wasSelected) { 
     if (position == 0) { 
      ParteienFragment parteienFragment = new ParteienFragment(); 
      getSupportFragmentManager().beginTransaction().replace(R.id.content_id, parteienFragment).commit(); 
     } else if (position == 1) { 
      StatistikenFragment statistikenFragment = new StatistikenFragment(); 
      getSupportFragmentManager().beginTransaction().replace(R.id.content_id, statistikenFragment).commit(); 
     } else if (position == 2) { 
      FragenFragment fragenFragment = new FragenFragment(); 
      getSupportFragmentManager().beginTransaction().replace(R.id.content_id, fragenFragment).commit(); 
     } 
    } 
} 

我不知道如何在這種情況下實現一個ViewPager。 我已經使用Google搜索，但沒有發現任何特定於此NavigationBar的內容。 是否有可能在此導航欄上添加滑動效果？ 我想要的是我可以在我的碎片之間擦拭左右。

Answer 1

我知道這是有點晚了，但在這裏去實現你假裝什麼的一種方式。如果你想要一個滑動行爲，你應該在你的活動中做一個觸摸事件來檢測一個滑動。檢測到滑動後，它應該很簡單，只需獲取當前項目，並根據滑動設置底部導航的位置。

例子：

if(isSwipeRight && bottomNavigation.getCurrentItem() > 0) 
    bottomNavigation.setCurrentItem(bottomNavigation.getCurrentItem()-1); 
else if(isSwipeLeft && bottomNavigation.getCurrentItem() < numTabs-1) 
    bottomNavigation.setCurrentItem(bottomNavigation.getCurrentItem()+1);