除非在选择提交按钮后按下BACK，否则finishActivity（）不起作用

I have a generic tutorial-based application that passes user information to a second activity. On the second activity, the user opts whether to "agree" via a CheckBox. When the user clicks the submit button, they are suppose to return to the previous activity, with a SnackBar confirming whether they checked the agree CheckBox.I have a generic tutorial-based application tha