java - Android：将匿名类作为 Intent 参数传递的异常

Question

例外：

java.lang.RuntimeException: Parcelable encountered IOException writing serializable object (name = MyClass$2)

（简化的）代码：

i.putExtra("myparam", generateA(context, "foo"));
...
private A generateA(final Context context, String foo) {
    return new A() {

        @Override
        public void test() {
            System.out.println("test");
        }
    };
}

界面：

public interface A extends Serializable {

    public void test();

}

我究竟做错了什么？我传递的是一个可序列化的。

Answer 1

如果我理解得很好，意图失败是因为您的匿名类由于其处理程序而无法序列化？

是否可以在目标活动中实现您的处理程序？bahaviour 类应该只包含行为函数和目标活动提供的处理程序：

private transient Handler h;

//Called by the activity in the onCreate
void setHandler(Handler h){
   this.h = h;
}

//Called by the activity to start the behaviour function
void startBehaviour (){
  //...
  //The activity handler will call startHandlerBehaviour itself
  h.sendMessage();
}

//Called by the activity in the Handler to execute in the good context
void startHandlerBehaviour() {
  //...
}