--关于SwipeRefreshLayout使用的小记录
我们常见的SwipeRefreshLayout包裹Recyclerview,实现下拉加载-更新数据,常见布局例如:
<?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:orientation="vertical">
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/refreshlayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent"
android:fadeScrollbars="true"
android:scrollbars="vertical" />
</android.support.v4.widget.SwipeRefreshLayout>
</LinearLayout>```
超级简单的布局,在Activity或者Fragment中,我们想在打开当前View时候,使SwipeRefreshLayout处于加载状态,例如在Activity的onCreate方法中,初始化SwipeRefreshLayout操作后调用setRefreshing方法:
SwipeRefreshLayout refreshlayout = (SwipeRefreshLayout) findviewbyId(R.id.refreshlayout );
refreshlayout .setRefreshing(true);```
编译运行,没有效果;
真正调用的方法:
refreshlayout.post(new Runnable() {
@Override
public void run() {
refreshlayout.setRefreshing(true);
}
});```
取消加载效果则
refreshlayout.post(() -> refreshlayout.setRefreshing(false));
refreshlayout.setRefreshing(false);```
都可以