如何在Android中触发swiperefreshlayout?

问题描述

限时删除！！

我想在我的MainFragment的事件onCreateView中触发我的SwipeRefreshLayout.我想做的是开始在事件onCreateView中下载信息，同时显示SwipeRefreshLayout刷新.有什么想法吗?

I want to trigger my SwipeRefreshLayout in the event onCreateView of my MainFragment.What I want to do is start downloading the information in the event onCreateView and at the same time I show the SwipeRefreshLayout refreshing. Any ideas?

这是我在MainFragment

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_main, container, false);
        SwipeRefreshLayout swpRfrshLyt= (SwipeRefreshLayout) rootView.findViewById(R.id.swpRfrshLyt);

        swpRfrshLyt.setColorSchemeResources(R.color.holo_blue_light,
                R.color.holo_green_light,
                R.color.holo_orange_light,
                R.color.holo_red_light);

        swpRfrshLyt.setOnRefreshListener(this);
        swpRfrshLyt.setRefreshing(true);
        return rootView;
    }

这是我的fragment_main.xml

<android.support.v4.widget.SwipeRefreshLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/swpRfrshLyt"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ListView
        android:id="@+id/lstvw_items"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

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

我正在使用Android Studio，这是我的构建包

I am using Android Studio, here is my build gradle

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:+'
    compile 'com.android.support:support-v4:+'
    compile 'com.mcxiaoke.volley:library:1.0.+'
}

我已经安装了Android SDK Build Tools 21.0.2

推荐答案

有一种更好的解决方案，可以使用以下方法来实现:

There is a better solution to achieve this by using the following:

mSwipeRefreshLayout.post(new Runnable() {
    @Override public void run() {
        mSwipeRefreshLayout.setRefreshing(true);
    }
});

mSwipeRefreshLayout是SwipeRefreshLayout.如果您只是致电:

Here mSwipeRefreshLayout is the SwipeRefreshLayout. If you simply call:

 mSwipeRefreshLayout.setRefreshing(true);

它不会触发圆圈进行动画处理，因此，通过添加以上行，您只需在UI线程中进行延迟，以便在UI线程内显示圆圈动画.

it wont trigger the circle to animate, so by adding the above line you just make a delay in the UI thread so that it shows the circle animation inside the UI thread.

通过调用mSwipeRefreshLayout.setRefreshing(true)，OnRefreshListener也将被执行，因此在任务结束后只需添加mSwipeRefreshLayout.setRefreshing(false)即可停止圆形动画.

By calling mSwipeRefreshLayout.setRefreshing(true) the OnRefreshListener will also get executed so after the task end just add mSwipeRefreshLayout.setRefreshing(false) to stop the circle animation.

这篇关于如何在Android中触发swiperefreshlayout?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

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