在RecyclerView中插入多个数组可以通过以下步骤实现:
下面是一个示例代码:
public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int TYPE_ARRAY1 = 0;
private static final int TYPE_ARRAY2 = 1;
private static final int TYPE_ARRAY3 = 2;
private List<String> array1;
private List<String> array2;
private List<String> array3;
public MyAdapter(List<String> array1, List<String> array2, List<String> array3) {
this.array1 = array1;
this.array2 = array2;
this.array3 = array3;
}
@Override
public int getItemViewType(int position) {
if (position < array1.size()) {
return TYPE_ARRAY1;
} else if (position < array1.size() + array2.size()) {
return TYPE_ARRAY2;
} else {
return TYPE_ARRAY3;
}
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View view;
switch (viewType) {
case TYPE_ARRAY1:
view = inflater.inflate(R.layout.item_array1, parent, false);
return new Array1ViewHolder(view);
case TYPE_ARRAY2:
view = inflater.inflate(R.layout.item_array2, parent, false);
return new Array2ViewHolder(view);
case TYPE_ARRAY3:
view = inflater.inflate(R.layout.item_array3, parent, false);
return new Array3ViewHolder(view);
default:
throw new IllegalArgumentException("Invalid view type");
}
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
switch (holder.getItemViewType()) {
case TYPE_ARRAY1:
((Array1ViewHolder) holder).bindData(array1.get(position));
break;
case TYPE_ARRAY2:
((Array2ViewHolder) holder).bindData(array2.get(position - array1.size()));
break;
case TYPE_ARRAY3:
((Array3ViewHolder) holder).bindData(array3.get(position - array1.size() - array2.size()));
break;
default:
throw new IllegalArgumentException("Invalid view type");
}
}
@Override
public int getItemCount() {
return array1.size() + array2.size() + array3.size();
}
private static class Array1ViewHolder extends RecyclerView.ViewHolder {
private TextView textView;
public Array1ViewHolder(View itemView) {
super(itemView);
textView = itemView.findViewById(R.id.text_view);
}
public void bindData(String data) {
textView.setText(data);
}
}
private static class Array2ViewHolder extends RecyclerView.ViewHolder {
private TextView textView;
public Array2ViewHolder(View itemView) {
super(itemView);
textView = itemView.findViewById(R.id.text_view);
}
public void bindData(String data) {
textView.setText(data);
}
}
private static class Array3ViewHolder extends RecyclerView.ViewHolder {
private TextView textView;
public Array3ViewHolder(View itemView) {
super(itemView);
textView = itemView.findViewById(R.id.text_view);
}
public void bindData(String data) {
textView.setText(data);
}
}
}
在上面的示例中,我们假设有三个数组array1、array2和array3,分别对应不同的数据类型。根据getItemViewType()方法返回的数据类型,选择不同的布局文件和ViewHolder。在onBindViewHolder()方法中,根据数据类型绑定数据到相应的ViewHolder。
请注意,上述示例中的布局文件和ViewHolder是示意性的,你需要根据实际需求自行创建和定义。此外,还需要在Activity或Fragment中创建LayoutManager并将其设置给RecyclerView,以及创建适配器的实例并将其设置给RecyclerView。
希望以上内容能够帮助到你!如果你需要了解更多关于RecyclerView的知识,可以参考腾讯云的产品文档:RecyclerView。
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