viewPager加fragment动态数据不显示

我的主布局

index.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="110dp"
        android:background="#fff64a"
        android:orientation="vertical"
        android:paddingBottom="10dp" >

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="60dp"
            android:gravity="center"
            android:orientation="horizontal" >

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/location" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="5dp"
                android:text="定位中..."
                android:textColor="#555"
                android:textSize="20dp" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"
            android:background="@drawable/corners"
            android:gravity="center"
            android:padding="10dp" >

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/search" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="5dp"
                android:text="请输入食物名称"
                android:textColor="#888"
                android:textSize="15dp" />
        </LinearLayout>
    </LinearLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/vpFgmt"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:background="#888" >
    </android.support.v4.view.ViewPager>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/border_top"
        android:orientation="horizontal"
        android:paddingBottom="3dp"
        android:paddingTop="5dp" >

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:orientation="vertical" >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:drawablePadding="3dp"
                android:drawableTop="@drawable/home"
                android:text="首页"
                android:textColor="#333"
                android:textSize="10dp" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:orientation="vertical" >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:drawablePadding="3dp"
                android:drawableTop="@drawable/orders"
                android:text="订单"
                android:textColor="#333"
                android:textSize="10dp" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:orientation="vertical" >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:drawablePadding="3dp"
                android:drawableTop="@drawable/settings"
                android:text="设置"
                android:textColor="#333"
                android:textSize="10dp" />
        </LinearLayout>
    </LinearLayout>

</LinearLayout>

然后有3个fragment home.xml,order.xml,settings.xml,后面2个布局比较简单就一个textview

home.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#dfded4"
    android:orientation="vertical" >

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="120dp" >

        <android.support.v4.view.ViewPager
            android:id="@+id/vpBanner"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:background="#888" >
        </android.support.v4.view.ViewPager>

        <LinearLayout
            android:id="@+id/llBanner"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:background="@android:color/transparent"
            android:gravity="center_horizontal"
            android:orientation="horizontal"
            android:paddingBottom="10dp" >

            <ImageView
                android:id="@+id/bannerDot1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/dot_select" />

            <ImageView
                android:id="@+id/bannerDot2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:paddingLeft="3dp"
                android:src="@drawable/dot" />

            <ImageView
                android:id="@+id/bannerDot3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:paddingLeft="3dp"
                android:src="@drawable/dot" />

            <ImageView
                android:id="@+id/bannerDot4"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:paddingLeft="3dp"
                android:src="@drawable/dot" />
        </LinearLayout>
    </RelativeLayout>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_marginTop="10dp"
        android:layout_weight="1"
        android:background="#fff"
        android:orientation="vertical" >

        <TextView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:background="@drawable/border_bottom"
            android:drawableLeft="@drawable/radio"
            android:drawablePadding="5dp"
            android:padding="5dp"
            android:text="最新消息"
            android:textColor="#333" />

        <ListView
            android:id="@+id/index_orders"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:divider="#dfded4"
            android:dividerHeight="1px" >
        </ListView>
    </LinearLayout>

</LinearLayout>

MainActivity.java

public class MainActivity extends FragmentActivity {

    private ViewPager vpFgmt;
    private List<Fragment> fragmentViews;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.index);
        initFragmentViews();

    }

    private void initFragmentViews() {

        fragmentViews = new ArrayList<Fragment>();
        fragmentViews.add(new HomeFgmt());
        fragmentViews.add(new OrderFgmt());
        fragmentViews.add(new SettingsFgmt());
        

        vpFgmt = (ViewPager) findViewById(R.id.vpFgmt);
        
        FragmentManager fm = getSupportFragmentManager();
        
        vpFgmt.setAdapter(new ViewPagerFgmtAdapter(fm,fragmentViews));

        vpFgmt.addOnPageChangeListener(new OnPageChangeListener() {

            @Override
            public void onPageSelected(int arg0) {
                
            }

            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2) {

            }

            @Override
            public void onPageScrollStateChanged(int arg0) {

            }
        });
    }
}

ViewPagerFgmtAdapter.java

public class ViewPagerFgmtAdapter extends FragmentStatePagerAdapter {
    
    private List<Fragment> views;
    
    public ViewPagerFgmtAdapter(FragmentManager fm,List<Fragment> views) 
    {
        super(fm);
        this.views = views;
    }
    
    @Override
    public Fragment getItem(int position) {
        return views.get(position);
    }
    @Override
    public int getCount() {
        return views.size() ;
    }
    
    @Override
    public void finishUpdate(ViewGroup container) {
        super.finishUpdate(container);
    }
    


}

HomeFgmt.java

public class HomeFgmt extends Fragment {

    private ViewPager vpBanner;
    private ViewPagerAdapter vpAdapter;
    private List<View> bannderViews;
    private ImageView[] dots;
    private int[] bannerIds = { R.drawable.index_banner1,
            R.drawable.index_banner2, R.drawable.index_banner3,
            R.drawable.index_banner4 };
    private int[] ids = { R.id.bannerDot1, R.id.bannerDot2, R.id.bannerDot3,
            R.id.bannerDot4 };
    private ListView orderlist;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater,
            @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View root = inflater.inflate(R.layout.home, container, false);
        initBannerViews(root);
        initDots(root);
        return inflater.inflate(R.layout.home, container, false);
    }

    private void initBannerViews(View root) {

        bannderViews = new ArrayList<View>();
        for (int i = 0; i < bannerIds.length; i++) {
            ImageView iv = new ImageView(root.getContext());
            iv.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
                    LayoutParams.MATCH_PARENT));
            iv.setBackgroundResource(bannerIds[i]);
            bannderViews.add(iv);
        }

        vpAdapter = new ViewPagerAdapter(bannderViews, root.getContext());

        vpBanner = (ViewPager) root.findViewById(R.id.vpBanner);

        vpBanner.setAdapter(vpAdapter);

        vpBanner.addOnPageChangeListener(new OnPageChangeListener() {

            @Override
            public void onPageSelected(int arg0) {
                for (int i = 0; i < ids.length; i++) {
                    if (arg0 == i) {
                        dots[i].setImageResource(R.drawable.dot_select);
                    } else {
                        dots[i].setImageResource(R.drawable.dot);
                    }

                }
            }

            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2) {

            }

            @Override
            public void onPageScrollStateChanged(int arg0) {

            }
        });

        orderlist = (ListView) root.findViewById(R.id.index_orders);
        List<Order> list = DBHelper.getOrders(JsonUrl.GET_ORDERS_URL);
        orderlist.setAdapter(new IndexListViewAdapter(getContext(), list));
    }

    private void initDots(View root) {
        dots = new ImageView[bannderViews.size()];
        for (int i = 0; i < bannderViews.size(); i++) {
            dots[i] = (ImageView) root.findViewById(ids[i]);
        }
    }
}

之前没写底部滑动的时候homeFgmt的页面list 和广告轮播的数据都有的，这样改了之后页面就是空的了

图片描述

这是怎么回事呢

viewPager加fragment动态数据不显示

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viewPager加fragment动态数据不显示

你尚未登录，登录后可以

如何在Android POS机上实现H5项目脱机断网功能？

uniapp+安卓 预览本地doc等文件，大家都是怎么解决的？

有什么安卓自动化工具可以实现微信小程序的自动化签到？

请问下，Android SDK 和 Android SDK Platform 的区别是什么？

华为手机不能安装google play的应用，请问一般如何进行使用呢？

Flutter中Android Studio中运行自带模拟器or真机报错？

有没有适用于JDReadNote1的屏幕录制软件？

uniapp+安卓预览本地doc等文件，大家都是怎么解决的？