190312 startActivityForResult Intent.FLAG_ACTIVITY_FORWARD_RESULT
我需要的情況 A start B, A finished B start C, C start A, C finished, B needs to be finished also 於是找到以下這篇文章 https://medium.com/@douglas.iacovelli/android-send-result-back-through-multiple-activities-finished-or-not-4c2ba9e95112 A 1. startActivity 2. finish B 1. startActivityForResult 2. onActivityResult C 1. setResult 2. startActivity 3. finish