从SD卡中获取多个对象

Question

实现在SD卡中加载多个对象的代码：

ObjectInput in;
    Dog dog = null;
    try
    {
        in = new ObjectInputStream(new FileInputStream("/mnt/sdcard/somelocation/save.data"));
        dog = (Dog) in.readObject();
        in.close();
    } catch (Exception e)
    {
        e.printStackTrace();
    }

但是此代码只能加载一个对象。多谢指点。

Answer 1

由readObjects()的说明中提到：

Reads the next object from the source stream 读取*下一个*对象

我建议用一个循环读取：

List<Dog> dogs = new ArrayList<Dog>();
Dog dog;
try {
    in = new ObjectInputStream(new FileInputStream("/mnt/sdcard/somelocation/save.data"));
    while((dog = (Dog) in.readObject()) != null)
        dogs.add(dog);
    in.close();
}