java - 将对象从服务发送到 Activity (无法编码非 Parcelable)

Question

我正在尝试将我的 Activity 数据发送到服务并接收一些返回信息，但我得到:

java.lang.RuntimeException: Can't marshal non-Parcelable objects across processes.

Activity 中的代码如下所示:

Message msg = Message.obtain(null, 1);
    msg.obj=1;
    msg.replyTo=new Messenger(new PlanRequestIncomingHandler());
    try {
        msgService.send(msg);
    } catch (RemoteException e) {
        Log.i(tag, "Can not send msg to service");
        e.printStackTrace();
    }

当我设置 msg.obj = something 时，我得到 java.lang.RuntimeException，有人可以帮助我吗？

Answer 1

你可以通过Parcelable通过 Messenger 键入对象。或者如果你想通过 primitive data types使用 Bundle包装如下。

在服务端:

//Create a bundle object and put your data in it
Bundle bundle = new Bundle();
bundle.putInt("key", 1);

Message msg = Message.obtain(null, 123);
msg.obj = bundle;
msg.replyTo = new Messenger(new PlanRequestIncomingHandler());
try {
    msgService.send(msg);
} catch (RemoteException e) {
    Log.i(tag, "Can't send msg to service");
    e.printStackTrace();
}

在 Activity 结束时:

switch(msg.what) {
    case 123:
        if(msg.obj != null) {
            Bundle bundle = (Bundle) msg.obj;
            System.out.println("Got integer "+ bundle.getInt("key"));
        }
    break;
}

干杯:-)