安卓listview用法

反正一定要新建一个布局（这里我不多说）
然后我们可以设置Adapt函数

ublic class KeyAdapt extends BaseAdapter {
    private Context mcontext;
    public KeyAdapt(Context context){
        mcontext=context;
    }
    @Override
    public int getCount() {
        return 10;
    }
    @Override
    public Object getItem(int position) {
        return null;
    }
    @Override
    public long getItemId(int position) {
        return 0;
    }
    static class ViewHolder{
        TextView key;
    }
    @SuppressLint("InflateParams")
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder viewHolder=null;
        if (convertView == null) {
            convertView = LayoutInflater.from(mcontext).inflate(R.layout.simple_adapter,null);
            viewHolder=new ViewHolder();
            viewHolder.key=convertView.findViewById(R.id.key_text);
            convertView.setTag(viewHolder);
        }else{
            viewHolder= (ViewHolder) convertView.getTag();
        }
        viewHolder.key.setText("哈哈");
        return convertView;
    }
}

主界面使用

//关键词列表
key_list.setAdapter(new KeyAdapt(this));