下拉刷新的代码就不贴了,本文主要讲的是SwipeRefreshLayout里面添加了其他View跟随listview一起向下滑动切换
回归正解以前用的下拉刷新基本都是继承ScrollView做的,但是SwipeRefreshLayout是继承ViewGroup。(之前一直傻傻以为SwipeRefreshLayout是继承ScrollView一直在错误方向找)
这里附带下添加listView头部的方法,可以自己选择使用哪种方法适合
View view = getActivity().getLayoutInflater().inflate(R.layout.ind_layout,null,false); listview.addHeaderView(view);
这是红色View添加方法
多余的话不多说上代码
这是xml文件
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#e1e112"
android:orientation="vertical">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<View
android:layout_width="match_parent"
android:layout_height="400dp"
android:background="@color/colorAccent"/>
<com.example.my.swiperefresh.ListViewForScrollView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:minHeight="700dp"
android:headerDividersEnabled="true">
</com.example.my.swiperefresh.ListViewForScrollView>
</LinearLayout>
</ScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
</LinearLayout>
这是自定义listView
public class ListViewForScrollView extends ListView {
public ListViewForScrollView(Context context) {
super(context);
}
public ListViewForScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ListViewForScrollView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public ListViewForScrollView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);
}
}
这是下滑冲突的解决办法
listview.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
View firstView = view.getChildAt(firstVisibleItem);
if(firstVisibleItem ==0 && (firstView == null || firstView.getTop() == 0)) {
/*上滑到listView的顶部时,下拉刷新组件可见*/
swipeLayout.setEnabled(true);
} else {
/*不是listView的顶部时,下拉刷新组件不可见*/
swipeLayout.setEnabled(false);
}
}
});