一个button 一个editext 一个listview 点击button后取得editext的值 然后把赋值到listview 每点击一次button创建一个listview的item然后item的数据就是editext取得的值
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- ministar丶 2017-01-20 02:44关注
把edittext的值存在list里,每点击button,就list.add(edittext的值),再写一个listview的适配器,传list,再刷新一遍适配器
private List list=new ArrayList<>();
private MyAdapter adapter;1、button 点击事件:
String text=editText5.getText().toString();
if(!text.equals("")){
list.add(text);
adapter=new MyAdapter(this,list);
listview.setAdapter(adapter);
adapter.notifyDataSetChanged();} 2、适配器 class MyAdapter extends BaseAdapter{ private Context context; private List<String> list; public MyAdapter(Context context, List<String> list) { this.context = context; this.list = list; } @Override public int getCount() { return list.size(); } @Override public Object getItem(int position) { return list.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder viewHolder = null; if (convertView == null) { convertView = LayoutInflater.from(context).inflate( R.layout.dblist_item, parent, false); viewHolder = new ViewHolder(convertView); convertView.setTag(viewHolder); } else { viewHolder = (ViewHolder) convertView.getTag(); } final String s = (String) getItem(position); viewHolder.textView.setText(s); return convertView; } } static class ViewHolder { @BindView(R.id.textView) TextView textView; ViewHolder(View view) { ButterKnife.bind(this, view); } }
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