如何将数据传递到先于previous活动活动 [英] How to pass data to the activity that is prior to the previous activity

问题描述

我有三个活动，如： A，B和C. A启动B，和B开始C.我将从C.后面堆栈中删除B，那么我需要从C一些数据传递到之前，我完成C.我的问题是如何通过从数据C到A？

I have three activity, eg. A, B and C. A start B, and B start C. I will remove B from the back stack in C. Then I need to pass some data from C to A before I finish C. My question is how to pass data from C to A ?

推荐答案

如果你想完成C的活性，那么你可以使用广播接收器在一个活动之前，从C的一些数据传递给可以从C发送广播到A直接。

If you want to pass some data from C to A before finishing C activity then you can use broadcast receiver in your A activity and can send broadcast from C to A directly.

写下面的code。

BroadcastReceiver brd_receiver = new BroadcastReceiver() {

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals("receive data from C")) {
            // DO YOUR WORK HERE.
        }

    }
};

registerReceiver(brd_receiver, new IntentFilter("receive data from C"));

写这篇code，从活动的C数据发送到活性的。

Write this code to send data from activity C to activity A.

Intent intent = new Intent();
        intent.setAction("receive data from C");
        intent.putExtra(name, value); //SAVE YOU DATA INTO INTENT.
        sendBroadcast(intent);

希望它会帮助你，如果它不能正常工作，然后告诉我，你所面对的问题。我认为它应该工作。

Hope it will help you if it is not working then tell me the problem you are facing. I think it should work.

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