Question

我正在从数据库中的数据编译的数组中创建listview。数组1：firstnamearray（由名字组成）数组2：lastnamearray（由姓氏组成）

每个listview行都会在其中列出一个名称。例如，如果名字是“Joseph”，我希望该行的背景为绿色。我该怎么做？

这是我的代码：

CustomList adapter = new CustomList(getActivity(), firstnamearray, lastnamearray);

mainListView.setAdapter(adapter);

这是我的CustomList适配器：

public class CustomList extends ArrayAdapter<String> {
    private final Activity context;
    private final String[] firstnamearray;
    private final String[] lastnamearray;

    public CustomList(Activity context,
                      String[] firstnamearray, String[] lastnamearray) {
        super(context, R.layout.simplerow, firstnamearray);
        this.context = context;
        this.firstnamearray = firstnamearray;
        this.lastnamearray = lastnamearray;
    }

    @Override
    public View getView(int position, View view, ViewGroup parent) {

        LayoutInflater inflater = context.getLayoutInflater();
        View rowView= inflater.inflate(R.layout.simplerow, null, true);
        TextView firstname = (TextView) rowView.findViewById(R.id.firstname);
        TextView lastname = (TextView) rowView.findViewById(R.id.lastname);

        cardnumber.setText(firstnamearray[position]);
        expdate.setText(lastnamearray[position]);

        return rowView;
    }
}

我研究了这个并且看到有人谈论在点击或选择时改变背景颜色，但我希望它在创作时具有不同的行颜色（如果名字“Joseph”）。

Answer 1

非常简单，只需检查名称是 Joseph 。像这样：

@Override
public View getView(int position, View view, ViewGroup parent) {

    LayoutInflater inflater = context.getLayoutInflater();
    View rowView= inflater.inflate(R.layout.simplerow, null, true);
    TextView firstname = (TextView) rowView.findViewById(R.id.firstname);
    TextView lastname = (TextView) rowView.findViewById(R.id.lastname);
    if(firstnamearray[position].equels("Joseph")){
    //setbackground color to your desired color
    rowView.setBackgroundColor(context.getResources().getColor(R.color.red));//color defined in xml
    }else{
    rowView.setBackgroundColor(context.getResources().getColor(R.color.white));// your default color
    }
    cardnumber.setText(firstnamearray[position]);

    expdate.setText(lastnamearray[position]);

    return rowView;
}

使特定列表视图行背景不同颜色 - Android？

1 个答案: