订单activity

layout:

<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"
    tools:context="com.example.shopcart.view.OrderActivity">
<RelativeLayout
    android:id="@+id/relat"
    android:layout_width="match_parent"
    android:layout_height="50dp">
    <TextView
        android:text="订单列表"
        android:textSize="30sp"
        android:textColor="#000"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</RelativeLayout>
    <TextView
        android:id="@+id/t1"
        android:layout_below="@+id/relat"
        android:background="#F3F4F5"
        android:layout_width="match_parent"
        android:layout_height="4dp" />
<android.support.design.widget.TabLayout
    android:layout_below="@+id/t1"
    android:id="@+id/tab_layout"
    android:layout_width="match_parent"
    android:layout_height="55dp"
    app:tabGravity="center"
    app:tabIndicatorColor="@color/colorAccent"
    app:tabMode="scrollable"
    app:tabSelectedTextColor="@color/colorPrimaryDark"
    app:tabTextColor="@color/colorPrimary"></android.support.design.widget.TabLayout>
    <TextView
        android:id="@+id/t2"
        android:layout_below="@+id/tab_layout"
        android:background="#F3F4F5"
        android:layout_width="match_parent"
        android:layout_height="4dp" />
    <android.support.v4.view.ViewPager
        android:layout_below="@+id/t2"
        android:id="@+id/view_pager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></android.support.v4.view.ViewPager>
</RelativeLayout>

2.代码:

public class OrderActivity extends AppCompatActivity {

    private TabLayout tab_layout;
    private ViewPager view_pager;
    private List<String> list;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_order);
        //https://www.zhaoapi.cn/product/getOrders?uid=71
        tab_layout = (TabLayout) findViewById(R.id.tab_layout);
        view_pager = (ViewPager) findViewById(R.id.view_pager);
        list = new ArrayList<>();
        list.add("全部");
        list.add("待支付");
        list.add("已支付");
        list.add("已取消");
        view_pager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {
            @Override
            public CharSequence getPageTitle(int position) {
                return list.get(position);
            }

            @Override
            public Fragment getItem(int position) {
                DanFragment danFragment = new DanFragment();
                Bundle bundle = new Bundle();
                bundle.putString("title",list.get(position));
                danFragment.setArguments(bundle);
                return danFragment;
            }

            @Override
            public int getCount() {
                return list.size();
            }
        });
        tab_layout.setupWithViewPager(view_pager);
        view_pager.setOffscreenPageLimit(list.size()-1);
    }
}
.//跳转订单fragment:http://blog.youkuaiyun.com/wuchengyayo/article/details/78861861