多活动管理与标签栏和底部栏

Question

我最近使用AHBottomNavigation，它在底部栏有5个项目，例如当我点击Home Button，它会转到homeactivity，我有3个标签栏。一切，直到这里是好的，但我意识到，当我们使用ahbottom导航，我们应该使用片段，但我需要使用活动与栏和显示AHBottomNavigation在所有他们。我在所有的活动中使用AHBottomNavigation来处理这个，它工作了所有的活动都有AHBottomNavigation但当我改变活动时，AHBottomNavigation不像正常一样工作，似乎有一个延迟。是否有更好的解决方案，或者请告诉我，如果我做错了什么?

HomeActivity.class

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

        setSupportActionBar(toolbar);
        getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        if (drawer != null) {
            drawer.setDrawerListener(toggle);
        }
        toggle.syncState();
        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);
        //[START Tab ]
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        viewPager = (ViewPager) findViewById(R.id.viewpager);
        setupViewPager(viewPager);
        tabLayout = (TabLayout) findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(viewPager);
        //[*End Tab]
        //[Start Bottom N]
        bottomNavigation();
    }
        private void setupViewPager(ViewPager viewPager){
        ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
        adapter.addFragment(new Fragment1(),"Tab1");
        adapter.addFragment(new Fragment2() , "Tab2");
        adapter.addFragment(new Fragment3() , "Tab3");
        viewPager.setAdapter(adapter);
    }
     public void bottomNavigation(){
        // [START  BottomNavigation]
        // TODO add other activitys to setOnTabSelectedListener (HOME , SEARCH , ...)
        AHBottomNavigation bottomNavigation = (AHBottomNavigation) findViewById(R.id.bottom_navigation);
        // Create items
        AHBottomNavigationAdapter navigationAdapter = new AHBottomNavigationAdapter(this, R.menu.bottom_navigation);
        navigationAdapter.setupWithBottomNavigation(bottomNavigation);

        bottomNavigation.setBehaviorTranslationEnabled(true);
        bottomNavigation.setAccentColor(Color.parseColor("#3498db"));
        bottomNavigation.setCurrentItem(0);
        bottomNavigation.setOnTabSelectedListener(new AHBottomNavigation.OnTabSelectedListener() {
            @Override
            public boolean onTabSelected(int position, boolean wasSelected) {

                switch (position){
                    case 0 :
                        break;
                    case 1 :
                        // Add
                        Intent goToAddStuff = new Intent(HomeActivity.this , AddStuffActivity.class);
                        startActivity(goToAddStuff);
                        finish();
                        break;
                    case 2 :
                        // Search
                        break;
                    case  3:
                        // Activity's
                    //My AONActivity have 2 tab too
                        Intent goToAON = new Intent(HomeActivity.this , AONActivity.class);
                        startActivity(goToAON);
                        finish();
                        break;
                    case  4:
                        //Account
                        break;
                }
                return true;
            }
        });
        // [*END  BottomNavigation]
    }

content_home.xml

<android.support.design.widget.CoordinatorLayout 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=".HomeActivity"
android:id="@+id/content_id"
tools:showIn="@layout/activity_home">

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context=".HomeActivity">

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"  />
</RelativeLayout>

    <FrameLayout
        android:id="@+id/contentContainer"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/bottomBar" />
    <include layout="@layout/bottom_navigation" />
</android.support.design.widget.CoordinatorLayout>

bottom_navigation.xml

<com.aurelhubert.ahbottomnavigation.AHBottomNavigation
    android:id="@+id/bottom_navigation"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    android:layout_gravity="bottom">
</com.aurelhubert.ahbottomnavigation.AHBottomNavigation>

Answer 1

我也使用AHBottomNavigation，但你需要由于谷歌材料设计，你需要使用碎片，否则你实现它不正确。

应该是这样:

<RelativeLayout 
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical" android:layout_width="match_parent"
     android:layout_height="match_parent"
     >
<FrameLayout
    android:id="@+id/framelayout_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    />
<com.aurelhubert.ahbottomnavigation.AHBottomNavigation
    android:id="@+id/bottom_navigation"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    />
</RelativeLayout>

这是一些代码，只是为了显示如何更好地与片段工作，如果你不知道，只是我不知道你的背景，也许你不使用它，因为你觉得这很困惑。

@Override
public void onTabSelected(int position, boolean wasSelected) {
    Log.d(TAG, "Position " + position + " was selected" + wasSelected);
    if(!wasSelected) {
        getSupportFragmentManager()
                .beginTransaction()
                .replace(FRAME_LAYOUT,
                        createFragment(position),
                        createItemDescription(position))
                .addToBackStack(null)
                .commit();
    }
}
private void createBottomNavigationMenu(int defaultCurrentItem){
    for(int i = 0; i<5; i++){
        //  Create bottom navigation item
        AHBottomNavigationItem item =
                new AHBottomNavigationItem(createItemDescription(i),
                                            createPicture(i));
        //  Add bottom navigation item
        mBottomNavigation.addItem(item);
    }
 //  Set current item programmatically
    mBottomNavigation.setCurrentItem(defaultCurrentItem, true);
 //  Set background color
     mBottomNavigation.setDefaultBackgroundColor(Color.parseColor("#56ABF8"));
  //  Disable the translation inside the CoordinatorLayout
    mBottomNavigation.setBehaviorTranslationEnabled(false);
  //  Set listener
    mBottomNavigation.setOnTabSelectedListener(this);
}
 // Factory-method patterns
private Fragment createFragment(int position){
    switch (position) {
        case 1:
            return new SettingsFragment_();
        case 2:
            return new StatisticsFragment_();
        case 3:
            return new MainFragment_();
        case 4:
            return new ForthFragment_();
        case 5:
            return new ReminderFragment_();
    }
    throw new IllegalArgumentException();
}
private String createItemDescription(int position){
    switch (position){
        case 1:
            return BOT_NAV_ITEM_SETTINGS;
        case 2:
            return BOT_NAV_ITEM_STATISTICS;
        case 3:
            return BOT_NAV_ITEM_MAIN;
        case 4:
            return BOT_NAV_ITEM_FORTH;
        case 5:
            return BOT_NAV_ITEM_REMINDERS;
    }
    throw new IllegalArgumentException();
}
private int createPicture(int position){
    switch (position){
        case 1:
            return R.mipmap.ic_settings;
        case 2:
            return R.mipmap.ic_statistics;
        case 3:
            return R.mipmap.ic_water;
        case 4:
            return R.mipmap.ic_launcher;
        case 5:
            return R.mipmap.ic_reminders;
    }
    throw new IllegalArgumentException();
}

Answer 2

我发现解决方案:

我创建了HomeFragment，它的范围是这样的:

HomeFragment.class

public class HomeFragment extends Fragment {

    public static TabLayout tabLayout;
    public static ViewPager viewPager;
    private static int currentItem = 0;
    AdapterFragment adapter;
    public static HomeFragment newInstance(int someInt) {
        HomeFragment frag = new HomeFragment();
        Bundle args = new Bundle();
        args.putInt("tab", someInt);
        frag.setArguments(args);
        return frag;
    }
    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt("currentItem", viewPager.getCurrentItem());
    }
    public static HomeFragment newInstance() {
        HomeFragment frag = new HomeFragment();
        return frag;
    }
    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        adapter= new AdapterFragment(getChildFragmentManager());
        currentItem=getArguments() != null ? getArguments().getInt("tab") : 0;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        /**
         *Inflate tab_layout and setup Views.
         */
        View rootView = inflater.inflate(R.layout.fragment_home,container,false);
        tabLayout = (TabLayout) rootView.findViewById(R.id.tablayout);
        viewPager = (ViewPager) rootView.findViewById(R.id.viewpager);
        /**
         *Set an Adapter for the View Pager
         */
        if (adapter==null) adapter=new AdapterFragment(getChildFragmentManager());
        viewPager.setAdapter(adapter);
        viewPager.setCurrentItem( currentItem);
        /**
         * Now , this is a workaround ,
         * The setupWithViewPager dose't works without the runnable .
         * Maybe a Support Library Bug .
         */
        tabLayout.post(new Runnable() {
            @Override
            public void run() {
                tabLayout.setupWithViewPager(viewPager);
            }
        });
        return rootView;
    }
    public class AdapterFragment extends FragmentPagerAdapter {
        public AdapterFragment(FragmentManager fm) {
            super(fm);
        }
        /**
         * Return fragment with respect to Position .
         */
        @Override
        public Fragment getItem(int position)
        {
            switch (position){
                case 0 : return new Tab1Fragment();
                case 1 : return new Tab2Fragment();
                case 2 : return new Tab3Fragment();
            }
            return null;
        }
        @Override
        public int getCount() {
            return 3;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            switch (position){
                case 0 :
                    return "Tab1";
                case 1 :
                    return "Tab2";
                case 2 :
                    return "Tab3";
            }
            return null;
        }
    }

And in my

MainActivity

bottomNavigation.setOnTabSelectedListener(new AHBottomNavigation.OnTabSelectedListener() {
            @Override
            public boolean onTabSelected(int position, boolean wasSelected) {
                switch (position){
                    case 0 :
                        // Home
                        HomeFragment homeFragment = new  HomeFragment();
                        getSupportFragmentManager()
                                .beginTransaction()
                                .replace(R.id.content_id, homeFragment)
                                .commit();

                        break;
                    case 1:
                        break;
                }
                return true;
            }
        });

我希望这对你有帮助