自定義適配器：

private class myBaseAdapter extends BaseAdapter {private ArrayList<Contect> list;public myBaseAdapter() {}public myBaseAdapter(ArrayList<Contect> list) {this.list = list;}@Overridepublic int getCount() {return list.size();}@Overridepublic Object getItem(int position) {return list.get(position);}@Overridepublic long getItemId(int position) {return position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {Contect contect= (Contect) getItem(position);//傳進來的list的某一項if(convertView==null){LayoutInflater inflater=LayoutInflater.from(getContext());convertView=inflater.inflate(R.layout.contect_item,parent,false);}TextView letter_Contect=convertView.findViewById(R.id.letter_Contect);ImageView contect_Head=convertView.findViewById(R.id.contect_Head);TextView contect_Name=convertView.findViewById(R.id.contect_Name);letter_Contect.setText(contect.getLetter());contect_Head.setImageResource(contect.getHead());contect_Name.setText(contect.getName());return convertView;}}

重點是getView()方法:

if(convertView==null){LayoutInflater inflater=LayoutInflater.from(getContext());convertView=inflater.inflate(R.layout.contect_item,parent,false);}

?

?

BaseAdapter：https://blog.csdn.net/yelbosh/article/details/7831812

轉載于:https://www.cnblogs.com/Lemonades/p/10759595.html

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