Android - How to move to activity dynamically or previous activity?

Question

I have 3 activities , Activity A and Activity B both can access to Activity C. But at a time,I am using Intent to return back to previous activity.

Intent i = new Intent(C.this , A.class);

Here i use activity C to return back to Activity A. but i want to return to activity A or B from C depending upon who called it. Not using finish(); to return back to activity.

If A calls C then intent i = new Intent (C.this, "dynamically set A");

If B calls C then intent i = new Intent (C.this, "dynamically set B");

Answer 1

在第一个通话中传递一个捆绑包（从A到C或从B到C），并在单击后退操作时检查它的来源。

Answer 2

You can simply use finish() method without using the intent. Look at this:

Button button = this.findViewById(R.id.backButton);
button.setOnClickListener(new OnClickListener() {
  @Override
  public void onClick(View v) {
    finish();
  }
});