根据视图将数据发送到意图(单选按钮) [英] sending data to an intent depending on a view (a radio button)

问题描述

我有一个活动，显示一个包含单选按钮和一个按钮(确定，取消)的对话框

i have an activity showing a dialog which contains radioButtons, and to buttons (Ok,cancel)

1. 我可以从此对话框启动活动吗?
2. 如何将选择的单选按钮的ID发送到第二个活动?

推荐答案

在确定"按钮的onClick()方法中，您可以添加此代码以启动另一个Activity并传​​递选中的单选按钮的ID:

in the onClick() method of the OK Button, you can add this code to start another Activity and pass the id of the checked radio button :

Intent intent = new Intent(FirstActivity.this, SecondActitvity.class);
intent.putextras("extra_selected_radio_button", checkedRadioButton.getId());
startActivity(intent);

以及SecondActivity的onCreate()方法中，您可以像这样检索所选单选按钮的ID:

and in the onCreate() method of the SecondActivity , you can retrieve the id of the selected radio button like this :

Intent intent = getIntent();
int radioButtonId = intent.getIntExtra("extra_selected_radio_button", -1); // -1 is the default value

PS:选中教程，以了解有关在Android中的各个活动之间发送数据的更多信息.

PS : Check this tutorial to learn more about sending data between activities in Android.

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