1、仿照微信空间上传图片，显示图片数量以及超过最大，上传按钮隐藏功能

2、上效果图

3、上代码，主要是Adapter类

/**

* Created by zhangyinlei on 2018/3/2 0002.

*/

public class AlbumSelectedShowAdapter extends RecyclerView.Adapter {

private static int TYPE_ADD = 0;//添加图片

private static int TYPE_COMMON = 1;//普通图片展示

private Context context;

private LayoutInflater mLayoutInflater;

//data

private int mMaxAlbum;//最大选择图片的数量

private List mStringList;//图片url集合

public AlbumSelectedShowAdapter(Context context, List mStringList, int maxAlbum) {

this.context = context;

this.mStringList = mStringList;

this.mMaxAlbum = maxAlbum;

this.mLayoutInflater = LayoutInflater.from(context);

}

@Override

public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

if (viewType == TYPE_ADD) {

return new ItemViewHolderAdd(mLayoutInflater.inflate(R.layout.item_album_selected_add, parent, false));

} else {

return new ItemViewHolderCommon(mLayoutInflater.inflate(R.layout.item_album_selected_common, parent, false));

}

}

@Override

public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {

View itemView = null;

if (holder instanceof ItemViewHolderAdd) {

ItemViewHolderAdd itemViewHolderAdd = (ItemViewHolderAdd) holder;

if (position >= mMaxAlbum) {

itemViewHolderAdd.itemView.setVisibility(View.GONE);

} else {

itemViewHolderAdd.tvNum.setText(position + "/" + mMaxAlbum);

itemViewHolderAdd.itemView.setVisibility(View.VISIBLE);

itemView = ((ItemViewHolderAdd) holder).itemView;

}

} else if (holder instanceof ItemViewHolderCommon) {

String url = mStringList.get(position);

Glide.with(context).load(url).apply(RequestOptions.centerCropTransform()).transition(withCrossFade()).into(((ItemViewHolderCommon) holder).ivCommon);

itemView = ((ItemViewHolderCommon) holder).itemView;

}

if (mOnItemClickListener != null && null != itemView) {

itemView.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

int position = holder.getLayoutPosition();

mOnItemClickListener.onItemClick(holder.itemView, position);

}

});

}

}

@Override

public int getItemViewType(int position) {

return position == mStringList.size() ? TYPE_ADD : TYPE_COMMON;

}

@Override

public int getItemCount() {

return mStringList.size() + 1;//加一代表最后一个添加图片按钮

}

public static class ItemViewHolderAdd extends RecyclerView.ViewHolder {

private TextView tvNum;

public ItemViewHolderAdd(View itemView) {

super(itemView);

tvNum = itemView.findViewById(R.id.tv_album_selected_num);

}

}

public static class ItemViewHolderCommon extends RecyclerView.ViewHolder {

private ImageView ivCommon;

public ItemViewHolderCommon(View itemView) {

super(itemView);

ivCommon = itemView.findViewById(R.id.iv_album_selected);

}

}

private OnItemClickListener mOnItemClickListener;

public void setOnItemClickListener(OnItemClickListener onItemClickListener) {

mOnItemClickListener = onItemClickListener;

}

public interface OnItemClickListener {

void onItemClick(View view, int position);

}

}

在Activity中使用，recycleView

mStringList = new ArrayList<>();

mAlbumSelectedShowAdapter = new AlbumSelectedShowAdapter(this, mStringList, mMaxAlbum);

mRvAlbumSelected.setLayoutManager(new GridLayoutManager(this, 4));

mRvAlbumSelected.setHasFixedSize(true);

mRvAlbumSelected.setAdapter(mAlbumSelectedShowAdapter);

mAlbumSelectedShowAdapter.setOnItemClickListener(new AlbumSelectedShowAdapter.OnItemClickListener() {

@Override

public void onItemClick(View view, int position) {

if (mStringList.size() == position) {

//选择相册功能

AlbumUtils.choosePicture(SuggestionActivity.this, false, mMaxAlbum - mStringList.size(), true);

} else {

//图片展示界面

}

}

});

}

总结

以上所述是小编给大家介绍的Android仿微信图片上传带加号且超过最大数隐藏功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！