java - 使用Fragment滑动刷新时数据没有变化

Question

我在滑动刷新时遇到问题，在为 setOnRefreshListener 设置操作之后，我已将 SwipeRefreshLayout 添加到布局 Activity_main.xml 中。

布局

<android.support.v4.widget.DrawerLayout>
        <FrameLayout
                android:id="@+id/container_body_vn"
                android:layout_width="fill_parent"
                android:layout_height="0dp"
                android:layout_weight="1"/>

        <android.support.v4.widget.SwipeRefreshLayout
                android:id="@+id/swipeToRefresh"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

        <android.support.v4.view.ViewPager
                android:id="@+id/pager"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_weight="1"
                android:layout_below="@id/tab_layout_vn"/>

        </android.support.v4.widget.SwipeRefreshLayout>


</android.support.v4.widget.DrawerLayout>

在main_activity.java中

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
setContentView(R.layout.soccer_activity_main_vn);
mSwipeRefreshLayout = findViewById(R.id.swipeToRefresh);

 mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            Fragment fragment = null;

            @Override
            public void onRefresh() {
                int current_tab = viewPager.getCurrentItem();

                switch (current_tab) {
                    case 0:
                        fragment = new TV_Fragment();
                        break;

                    default:
                        break;
                }

                if (fragment != null) {
                    FragmentManager fragmentManager = getSupportFragmentManager();
                    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                    fragmentTransaction.replace(R.id.container_body_vn, fragment);
                    fragmentTransaction.commit();
                }
            }
        });
}

我尝试运行应用程序中的数据，拉刷新后没有变化，图标刷新加载永远。不知道为什么，有知道的请留言。

抱歉我的英语不好。

谢谢

Answer 1

-如果您想在加载和滑动后隐藏刷新图标，应添加 mSipeRefreshLayout.setRefreshing(false);

-如果您想在一次加载和滑动后禁用刷新，应添加 mSipreRefreshLayout.setEnabled(false);

mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
        Fragment fragment = null;

        @Override
        public void onRefresh() {
            int current_tab = viewPager.getCurrentItem();

            switch (current_tab) {
                case 0:
                    fragment = new TV_Fragment();
                    break;

                default:
                    break;
            }

            if (fragment != null) {
                FragmentManager fragmentManager = getSupportFragmentManager();
                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                fragmentTransaction.replace(R.id.container_body_vn, fragment);
                fragmentTransaction.commit();


            }

            mSipeRefreshLayout.setRefreshing(false); //mSipreRefreshLayout.setEnabled(false); for disabled swipe

        }
    });