package com.luck.picture.lib.adapter;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.ImageView;
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import androidx.annotation.NonNull;
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import androidx.recyclerview.widget.RecyclerView;
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import com.luck.picture.lib.R;
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import com.luck.picture.lib.config.PictureSelectionConfig;
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import com.luck.picture.lib.entity.LocalMedia;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* @author：luck
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* @date：2019-11-30 20:50
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* @describe：微信风格选择后图片预览
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*/
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public class PictureWeChatPreviewGalleryAdapter
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extends RecyclerView.Adapter<PictureWeChatPreviewGalleryAdapter.ViewHolder> {
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private List<LocalMedia> list;
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private PictureSelectionConfig config;
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public PictureWeChatPreviewGalleryAdapter(PictureSelectionConfig config) {
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super();
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this.config = config;
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}
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public void setNewData(List<LocalMedia> data) {
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this.list = data == null ? new ArrayList<>() : data;
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notifyDataSetChanged();
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}
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public void addSingleMediaToData(LocalMedia media) {
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if (this.list != null) {
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list.clear();
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list.add(media);
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notifyDataSetChanged();
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}
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}
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public void removeMediaToData(LocalMedia media) {
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if (this.list != null && this.list.size() > 0) {
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this.list.remove(media);
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notifyDataSetChanged();
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}
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}
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@NonNull
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@Override
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public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
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View itemView = LayoutInflater.from(parent.getContext())
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.inflate(R.layout.picture_wechat_preview_gallery, parent, false);
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return new ViewHolder(itemView);
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}
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@Override
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public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
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LocalMedia item = getItem(position);
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if (item != null) {
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holder.viewBorder.setVisibility(item.isChecked() ? View.VISIBLE : View.GONE);
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if (config != null && config.imageEngine != null) {
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config.imageEngine.loadImage(holder.itemView.getContext(), item.getPath(), holder.ivImage);
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}
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holder.itemView.setOnClickListener(v -> {
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if (listener != null && holder.getAdapterPosition() >= 0) {
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listener.onItemClick(holder.getAdapterPosition(), getItem(position), v);
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}
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});
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}
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}
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public LocalMedia getItem(int position) {
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return list != null && list.size() > 0 ? list.get(position) : null;
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}
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class ViewHolder extends RecyclerView.ViewHolder {
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ImageView ivImage;
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View viewBorder;
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public ViewHolder(View itemView) {
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super(itemView);
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ivImage = itemView.findViewById(R.id.ivImage);
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viewBorder = itemView.findViewById(R.id.viewBorder);
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}
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}
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private OnItemClickListener listener;
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public void setItemClickListener(OnItemClickListener listener) {
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this.listener = listener;
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}
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public interface OnItemClickListener {
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void onItemClick(int position, LocalMedia media, View v);
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}
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@Override
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public int getItemCount() {
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return list != null ? list.size() : 0;
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}
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}
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