.activity
//点击条目删除
ma.setOnItemClickListener(new MAdapter.OnItemClickListener() {
@Override
public void onItemClick(int position) {
ma.remove(position);
}
@Override
public void onItemLongClick(int position) {
ma.add(position);
}
});
//点击按钮删除
case R.id.btn_add:
ma.add(0);
break;
case R.id.btn_delete:
ma.remove(0);
break;
.MAdapter
//接口回调,删除
public interface OnItemClickListener{
void onItemClick(int position);
void onItemLongClick(int position);
}
public OnItemClickListener mOnItemClickListener;
public void setOnItemClickListener(OnItemClickListener onItemClickListener){
mOnItemClickListener = onItemClickListener;
}
public void add(int i) {
list.add(i,list.get(i+1));
Toast.makeText(mainActivity, "添加成功", Toast.LENGTH_SHORT).show();
notifyItemInserted(i);
notifyDataSetChanged();
}
public void remove(int i) {
list.remove(i);
Toast.makeText(mainActivity, "删除成功", Toast.LENGTH_SHORT).show();
notifyItemRemoved(i);
notifyDataSetChanged();
}
@Override
public void onBindViewHolder(@NonNull final ViewHolder holder, int position) {
ImageLoader.getInstance().displayImage(list.get(position).getThumbnail_pic_s(),holder.iv);
holder.tv1.setText(list.get(position).getTitle());
holder.tv2.setText(list.get(position).getDate());
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int layoutPosition = holder.getLayoutPosition();
mOnItemClickListener.onItemClick(layoutPosition);
}
});
holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
int layoutPosition = holder.getLayoutPosition();
mOnItemClickListener.onItemLongClick(layoutPosition);
return false;
}
});
}