java - 在 Java 中使用数组

Question

我想将数组复制到数组。这样也可以吗？

我想从数组“arrayList data”中获取一些值

该数组包含一个值

我将 inkLevels 声明为数组，为第三行添加值。我只需要最后一行的值。在 GetInkLevel 内。我有一些方法，但我确信这不是好方法。您有什么建议吗？

public class ActivityToSmartWatch extends BaseAdapter {


private Activity activity;
private ArrayList<String[]> data;
private static LayoutInflater inflater = null;
private String[] inkLevels = new String[5];

public ActivityToSmartWatch(Activity a, ArrayList<String[]> inkLevels) {
    activity = a;
    data = inkLevels;
    inflater = (LayoutInflater) activity
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}


public int getCount() {
    return data.size();
}

public Object getItem(int position) {
    return position;
}

public long getItemId(int position) {
    return position;
}

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

    View vi = convertView;
    if (convertView == null)
        vi = inflater
                .inflate(R.layout.listviewitem_ink, null);

    if (data.get(position)[0].equals("C")) 
    {
        TextView inkLevel = (TextView)vi.findViewById(R.id.lvi_colorLevel);
        inkLevel.setText(data.get(position)[2]);    
    } 
    else if (data.get(position)[0].equals("Y")) 
    {
        TextView inkLevel = (TextView)vi.findViewById(R.id.lvi_colorLevel);
        inkLevel.setText(data.get(position)[2]);    
    } 
    else if (data.get(position)[0].equals("M"))
    {
        TextView inkLevel = (TextView)vi.findViewById(R.id.lvi_colorLevel);
        inkLevel.setText(data.get(position)[2]);    
    } 
    else if (data.get(position)[0].equals("B"))
    {
        TextView inkLevel = (TextView)vi.findViewById(R.id.lvi_colorLevel);
        inkLevel.setText(data.get(position)[2]);    
    }


    return vi;

}


public String[] getInkLevel (String [] inkLevels, int position)
{
    for (int i= 0; i <data.size(); i++)
    {
        inkLevels[i] = data.get(i);
    }

    return inkLevels;
}
}

Answer 1

正如我多次说过的，为什么不直接将其替换为对象，而不是处理数组呢？

public class PrinterColour
{
      // Include your data here.
      private String colorName;
      private int level;

      // Getters and Setters.
}

然后复制它们只是传递引用的情况。