https://firebase.google.cn/docs/reference/android/com/google/firebase/perf/metrics/AddTrace
AddTrace | Firebase SDKs for Android
firebasesdksandroid
https://firebase-dot-devsite-v2-prod.appspot.com/docs/reference/android/com/google/firebase/perf/metrics/AddTrace
AddTrace | Firebase SDKs for Android
firebasesdksandroid