how to pass handler using intent

there are 2 activity A and Screen in A Activity , i made handler and want to pass it to screen activity

Handler error_handler = new Handler() {
public void handleMessage(Message msg) {
}};

Intent loginButton_intent = new Intent(A.this, Screen.class);
loginButton_intent.putExtra("URL", URL);
loginButton_intent.putExtra("IP_Addres", dvr_login_data.IP_Addres);
loginButton_intent.("HAND", error_handler); <- but 开发者_运维知识库this code is error 

how can i pass handler ? plz warm-answer

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still looking for an answer? I had the same problem and found this question through google, so others might show up as well.

Anyways, I found my solution to the problem of using a handler between a service and an activity in the Android documentation. Just look at the Remote Messenger Service Sample right here: Remote Messenger Service Sample

Basically they are using a messenger as client interface for a local handler in the service.

Regards, Michael

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Well, to keep it short, you can't...Handler implements neithor Serializable nor Parcelable so it cannot be put as an extra...The Object Transported using Intents must follow eithor of those protocols.

Speculation I suppose, there's an alternative that would involve creating a Service to act as a middle man. But that'll require some testing.

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You can't pass Handler directly through an Activity's Extras, but you can pass in Messenger(handler).