113 lines
3.7 KiB
Java
113 lines
3.7 KiB
Java
package com.example.nanchen.aiyaschoolpush.adapter;
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import android.app.Activity;
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import android.content.Context;
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import android.support.v7.widget.RecyclerView;
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import android.util.Log;
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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 com.example.nanchen.aiyaschoolpush.R;
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import com.example.nanchen.aiyaschoolpush.ui.activity.ReleaseActivity;
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import com.lzy.imagepicker.ImagePicker;
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import com.lzy.imagepicker.bean.ImageItem;
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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 nanchen
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* @fileName AiYaSchoolPush
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* @packageName com.example.nanchen.aiyaschoolpush
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* @date 2016/11/23 14:21
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*/
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public class ImagePickerAdapter extends RecyclerView.Adapter<ImagePickerAdapter.SelectedPicViewHolder> {
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private int maxImgCount;
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private Context mContext;
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private List<ImageItem> mData;
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private LayoutInflater mInflater;
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private OnRecyclerViewItemClickListener listener;
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private boolean isAdded; //是否额外添加了最后一个图片
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public interface OnRecyclerViewItemClickListener {
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void onItemClick(View view, int position);
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}
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public void setOnItemClickListener(OnRecyclerViewItemClickListener listener) {
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this.listener = listener;
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}
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public void setImages(List<ImageItem> data) {
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mData = new ArrayList<>(data);
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if (getItemCount() < maxImgCount) {
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mData.add(new ImageItem());
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isAdded = true;
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} else {
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isAdded = false;
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}
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notifyDataSetChanged();
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}
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public List<ImageItem> getImages() {
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//由于图片未选满时，最后一张显示添加图片，因此这个方法返回真正的已选图片
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if (isAdded) return new ArrayList<>(mData.subList(0, mData.size() - 1));
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else return mData;
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}
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public ImagePickerAdapter(Context mContext, List<ImageItem> data, int maxImgCount) {
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this.mContext = mContext;
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this.maxImgCount = maxImgCount;
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this.mInflater = LayoutInflater.from(mContext);
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setImages(data);
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}
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@Override
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public SelectedPicViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
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return new SelectedPicViewHolder(mInflater.inflate(R.layout.layout_item_image, parent, false));
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}
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@Override
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public void onBindViewHolder(SelectedPicViewHolder holder, int position) {
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holder.bind(position);
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}
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@Override
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public int getItemCount() {
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return mData.size();
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}
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public class SelectedPicViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
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private ImageView iv_img;
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private int clickPosition;
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public SelectedPicViewHolder(View itemView) {
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super(itemView);
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iv_img = (ImageView) itemView.findViewById(R.id.iv_img);
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}
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public void bind(int position) {
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//设置条目的点击事件
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itemView.setOnClickListener(this);
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//根据条目位置设置图片
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ImageItem item = mData.get(position);
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if (isAdded && position == getItemCount() - 1) {
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iv_img.setImageResource(R.drawable.selector_image_add);
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clickPosition = ReleaseActivity.IMAGE_ITEM_ADD;
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} else {
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ImagePicker.getInstance().getImageLoader().displayImage((Activity) mContext, item.path, iv_img, 0, 0);
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clickPosition = position;
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}
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}
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@Override
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public void onClick(View v) {
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Log.e("ReleaseActivity","缩略宽："+iv_img.getWidth()+",缩略高："+iv_img.getHeight());
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if (listener != null) listener.onItemClick(v, clickPosition);
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}
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}
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}
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