为RecycleView添加其他View组件实现复杂布局
##详细可参考我的博客 RecyclerView的不同item项实现不同的布局(玩转RecyclerView)
运行截图
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主要思想是根据不同的ItemType去加载不同的布局
public int getItemViewType(int position){
return position % 5 == 0 ? ITEM_TYPE.ITEM_TYPE_Theme.ordinal() : ITEM_TYPE.ITEM_TYPE_Video.ordinal();}
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (viewType == ITEM_TYPE.ITEM_TYPE_Theme.ordinal()){
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.fragment_tab1_themelist,parent,false);
return new ThemeVideoHolder(view);
}else if(viewType == ITEM_TYPE.ITEM_TYPE_Video.ordinal()){
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.videocardview,parent,false);
return new VideoViewHolder(view);
}
return null;
}
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重写onAttachedToRecyclerView方法，在里面通过getSpanSize方法判断并设置当前item项应该占据多少个单元格 从而避免添加的不同View在GridRecyclerView中以cell显示
public void onAttachedToRecyclerView(RecyclerView recyclerView) { super.onAttachedToRecyclerView(recyclerView); RecyclerView.LayoutManager manager = recyclerView.getLayoutManager(); if(manager instanceof GridLayoutManager) { final GridLayoutManager gridManager = ((GridLayoutManager) manager); gridManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() { @Override public int getSpanSize(int position) { return getItemViewType(position) == ITEM_TYPE.ITEM_TYPE_Theme.ordinal() ? gridManager.getSpanCount() : 1; } }); } }