java - Android 中的序列化

Question

我正在尝试在 android 中序列化绘图和路径。当我将对象写入 Objectoutputstream 时，会引发 Notserializabale 异常。我还覆盖了serializabale类中的writeObject()方法。

这是代码。

public class msgContainar implements Serializable 
{
/**
 * 
 */
public msgContainar()
{

}
private static final long serialVersionUID = 1L;
private Path pathStack;
private Paint paintStack;

public Path getPathStack() 
{
    return pathStack;
}

public void setPathStack(Path pathStack) 
{
    this.pathStack = pathStack;
}

public Paint getPaintStack() 
{
    return paintStack;
}
public void setPaintStack(Paint paintStack) 
{
    this.paintStack = paintStack;
}

private void writeObject(ObjectOutputStream out) throws IOException
{

    try
    {
    Paint p=new Paint();
    p.set(paintStack);

    Path path=new Path();

    path.addPath(pathStack);

    out.writeObject(path);
    out.writeObject(p);

    }catch (Exception e) 
    {
        Log.e("err",""+e);
    }

}

private void readObject(ObjectInputStream in) throws IOException{

    try{
    Paint p=new Paint();
    p=paintStack;

    Path path=new Path();

    path=pathStack;

    }catch (Exception e) {
        Log.e("err",""+e);
    }
}
}

Answer 1

都不是Path也不Paint实现Serializable界面。要解决此问题，您可以创建自己的自定义子类来扩展 Path 和 Paint 并实现 Serialized。