PinnedHeaderExpandableListView

首先它是一个ExpandableListView，但是它的头部可以固定，其次，在它的上面还有一个头部可以来回伸缩

项目地址：https://github.com/singwhatiwanna/PinnedHeaderExpandableListView

接口

public interface OnHeaderUpdateListener {
/**
* 返回一个view对象即可
* 注意：view必须要有LayoutParams
*/
public View getPinnedHeader();

public void updatePinnedHeader(View headerView, int firstVisibleGroupPos);
}

public interface OnGiveUpTouchEventListener {
public boolean giveUpTouchEvent(MotionEvent event);
}

如何使用

让你的activity实现OnHeaderUpdateListener, OnGiveUpTouchEventListener两个接口，分别为PinnedHeaderExpandableListView中如何绘制和更新固定的头部以及StickyLayout中content何时放弃事件处理。

@Override
public View getPinnedHeader() {
View headerView = (ViewGroup) getLayoutInflater().inflate(R.layout.group, null);
headerView.setLayoutParams(new LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));

return headerView;
}

@Override
public void updatePinnedHeader(View headerView, int firstVisibleGroupPos) {
Group firstVisibleGroup = (Group) adapter.getGroup(firstVisibleGroupPos);
TextView textView = (TextView) headerView.findViewById(R.id.group);
textView.setText(firstVisibleGroup.getTitle());
}

@Override
public boolean giveUpTouchEvent(MotionEvent event) {
if (expandableListView.getFirstVisiblePosition() == 0) {
View view = expandableListView.getChildAt(0);
if (view != null && view.getTop() >= 0) {
return true;
}
}
return false;
}