android-從SD卡中獲取多個對象

從SD卡中獲取多個對象

實現在SD卡中加載多個對象的代碼：

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();
    }

但是此代碼只能加載一個對象。多謝指點。

最佳回答：

由readObjects()的說明中提到：

Reads the next object from the source stream 讀取*下一個*對象

我建議用一個循環讀取：

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();
}