java - 将数组从 A 类传递到 B 类

Question

我在 A 类中有一个名为 Floors 的数组，它包含类似于以下内容的值:

  List<Point> manualpoint = new ArrayList<Point>();
  int[] manualpointx = {135,200,300,155,235,300};

假设我希望将这些值传递给 B 类，假设 B 类已经声明了一个父类(super class) View

public class DrawView extends View implements OnTouchListener { 
    @Override
    public void onDraw(Canvas canvas) {
        //pass the values into this class
    }

}

如何将值从 A 类传递到 B 类？

Answer 1

在 Activity 之间传递数据

//to pass array use
intent.putExtra("intarray", manualpointx);
// to pass list of point use
intent.putParcelableArrayListExtra("bundle", (ArrayList<? extends Parcelable>) manualpoint);

对于类(class)

create public getter methods to return the values and call those methods from any class where you want to get the values