如何为片段调用onActivityResult

Question

I have this code

Intent intent = new Intent(getActivity(), PaymentActivity.class);
intent.putExtra(PaymentActivity.EXTRA_PAYMENT, thingToBuy);
getActivity().startActivityForResult(intent, paypal.REQUEST_CODE_PAYMENT);

override function call onActivityResult but it call the result.

Answer 1

Do not use getActivity().startActivityForResult(intent, paypal.REQUEST_CODE_PAYMENT);

This calls onActivityResult in the activity

Instead use the method in fragment

startActivityForResult(intent, paypal.REQUEST_CODE_PAYMENT);

Answer 2

If you call startActivityForResult from the Fragment the result will deliver to the Fragment . And if you call startActivityForResult from the Activity the result will deliver to the Activity . When Fragment calls StartActivityForResult the requestCode will be changed by the Activity , so it will know how to deliver the result to which Fragment .

In your case you should change line:

getActivity().startActivityForResult(intent, paypal.REQUEST_CODE_PAYMENT);

to:

startActivityForResult(intent, paypal.REQUEST_CODE_PAYMENT);

Answer 3

Where do you override the onActivityForResult method?.

If the answer is in your FragmentActivity. You should use: getActivity().startActivityForResult

If the answer is in your Fragment. You should use: startActivityForResult.