TTID/TTFD Improvements

[denrase]

📜 Description

• Adds a SentryDisplay with reportFullyDisplayed, fixing TTFD improvements #2852
• Adds SentryDisplayWidget to wrap SentryDisplay
• Refactoring
  • Remove global singleton instances for TTID/TTFD trackers
  • Remove redundant startTimestamp
  • Inject options in TTFD tracker instead of using static
• Fixes an issue where root screen ttfd could not be reported

💡 Motivation and Context

Closes #2852

💚 How did you test it?

Unit tests

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• No new PII added or SDK only sends newly added PII if sendDefaultPii is enabled
• I updated the docs if needed
• All tests passing
• No breaking changes

[codecov]

Codecov Report

Attention: Patch coverage is 93.24324% with 10 lines in your changes missing coverage. Please review.

Project coverage is 89.10%. Comparing base (4f9a5e9) to head (66115cd).

Files with missing lines	Patch %	Lines
flutter/lib/src/sentry_flutter.dart	55.55%	4 Missing ⚠️
flutter/lib/src/navigation/sentry_display.dart	75.00%	2 Missing ⚠️
...tter/lib/src/navigation/sentry_display_widget.dart	89.47%	2 Missing ⚠️
...b/src/navigation/time_to_full_display_tracker.dart	93.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2866      +/-   ##
==========================================
+ Coverage   87.65%   89.10%   +1.44%     
==========================================
  Files         272       95     -177     
  Lines        9047     3101    -5946     
==========================================
- Hits         7930     2763    -5167     
+ Misses       1117      338     -779     

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[github-actions]

iOS Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1244.18 ms	1259.65 ms	15.47 ms
Size	8.43 MiB	10.01 MiB	1.58 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
5e8d2b3	1255.71 ms	1267.98 ms	12.27 ms
051e97a	1245.94 ms	1249.51 ms	3.57 ms
07cd9e8	1237.04 ms	1257.50 ms	20.46 ms
7fd33d3	1241.92 ms	1265.47 ms	23.55 ms
a24a1db	1257.71 ms	1271.57 ms	13.87 ms
5aa047a	1236.57 ms	1241.02 ms	4.45 ms
abfcdb5	1230.87 ms	1244.94 ms	14.06 ms
7659cbe	1246.70 ms	1265.88 ms	19.17 ms
4d046e0	1243.08 ms	1255.98 ms	12.90 ms
bd1b990	1209.43 ms	1226.96 ms	17.53 ms

App size

Revision	Plain	With Sentry	Diff
5e8d2b3	8.29 MiB	9.36 MiB	1.07 MiB
051e97a	8.28 MiB	9.34 MiB	1.06 MiB
07cd9e8	8.38 MiB	9.77 MiB	1.40 MiB
7fd33d3	8.38 MiB	9.78 MiB	1.40 MiB
a24a1db	8.42 MiB	9.91 MiB	1.49 MiB
5aa047a	8.29 MiB	9.39 MiB	1.10 MiB
abfcdb5	8.33 MiB	9.64 MiB	1.31 MiB
7659cbe	8.42 MiB	9.89 MiB	1.47 MiB
4d046e0	8.42 MiB	9.83 MiB	1.40 MiB
bd1b990	8.32 MiB	9.38 MiB	1.06 MiB

Previous results on branch: enha/ttfd-tracking-imporvements

Startup times

Revision	Plain	With Sentry	Diff
129b785	1258.48 ms	1268.57 ms	10.10 ms
b4bfadb	1244.46 ms	1269.89 ms	25.43 ms
18daedc	1252.35 ms	1266.81 ms	14.46 ms
e6c151d	1265.26 ms	1276.04 ms	10.79 ms
13c4582	1265.98 ms	1278.06 ms	12.08 ms
64a71da	1245.57 ms	1264.22 ms	18.65 ms
80a3789	1247.35 ms	1249.75 ms	2.40 ms
abf0025	1248.33 ms	1264.54 ms	16.21 ms
cfec46d	1275.14 ms	1287.55 ms	12.41 ms
31c6c6b	1267.96 ms	1282.86 ms	14.90 ms

App size

Revision	Plain	With Sentry	Diff
129b785	8.43 MiB	10.01 MiB	1.58 MiB
b4bfadb	8.43 MiB	10.01 MiB	1.58 MiB
18daedc	8.43 MiB	10.01 MiB	1.58 MiB
e6c151d	8.43 MiB	10.01 MiB	1.58 MiB
13c4582	8.43 MiB	10.01 MiB	1.58 MiB
64a71da	8.43 MiB	10.01 MiB	1.58 MiB
80a3789	8.43 MiB	10.01 MiB	1.58 MiB
abf0025	8.43 MiB	10.01 MiB	1.58 MiB
cfec46d	8.43 MiB	10.01 MiB	1.58 MiB
31c6c6b	8.43 MiB	10.01 MiB	1.58 MiB

[github-actions]

Android Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	481.67 ms	505.76 ms	24.09 ms
Size	6.44 MiB	7.43 MiB	1012.18 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
04db237	330.16 ms	428.38 ms	98.22 ms
4477d2e	392.75 ms	472.69 ms	79.94 ms
1596141	300.92 ms	368.94 ms	68.02 ms
e2d89fc	323.84 ms	376.23 ms	52.39 ms
3334ac1	303.98 ms	366.65 ms	62.67 ms
9d7e862	426.35 ms	510.88 ms	84.53 ms
5cc82a0	400.35 ms	474.52 ms	74.17 ms
61e71ec	343.94 ms	410.59 ms	66.66 ms
24b6e60	440.64 ms	557.96 ms	117.32 ms
04bd9e6	402.06 ms	483.56 ms	81.50 ms

App size

Revision	Plain	With Sentry	Diff
04db237	5.94 MiB	6.95 MiB	1.01 MiB
4477d2e	6.33 MiB	7.26 MiB	950.38 KiB
1596141	6.16 MiB	7.14 MiB	1003.98 KiB
e2d89fc	6.06 MiB	7.03 MiB	989.37 KiB
3334ac1	6.06 MiB	7.03 MiB	993.54 KiB
9d7e862	6.33 MiB	7.26 MiB	943.41 KiB
5cc82a0	6.34 MiB	7.28 MiB	966.66 KiB
61e71ec	6.34 MiB	7.28 MiB	966.26 KiB
24b6e60	6.33 MiB	7.26 MiB	950.14 KiB
04bd9e6	6.35 MiB	7.34 MiB	1008.33 KiB

Previous results on branch: enha/ttfd-tracking-imporvements

Startup times

Revision	Plain	With Sentry	Diff
e6c151d	505.14 ms	561.90 ms	56.76 ms
13c4582	426.02 ms	493.63 ms	67.61 ms
22dfd2b	452.07 ms	511.98 ms	59.91 ms
4e48bc7	482.65 ms	549.28 ms	66.63 ms
31c6c6b	433.30 ms	489.52 ms	56.22 ms
129b785	527.02 ms	528.60 ms	1.58 ms
cfec46d	485.43 ms	550.69 ms	65.27 ms
9287f30	471.57 ms	513.60 ms	42.03 ms
4aca1fa	463.57 ms	513.39 ms	49.83 ms
abf0025	504.36 ms	558.93 ms	54.57 ms

App size

Revision	Plain	With Sentry	Diff
e6c151d	6.44 MiB	7.43 MiB	1010.10 KiB
13c4582	6.44 MiB	7.43 MiB	1012.17 KiB
22dfd2b	6.44 MiB	7.43 MiB	1011.88 KiB
4e48bc7	6.44 MiB	7.43 MiB	1012.23 KiB
31c6c6b	6.44 MiB	7.43 MiB	1012.22 KiB
129b785	6.44 MiB	7.43 MiB	1012.19 KiB
cfec46d	6.44 MiB	7.43 MiB	1012.20 KiB
9287f30	6.44 MiB	7.43 MiB	1010.45 KiB
4aca1fa	6.44 MiB	7.43 MiB	1011.88 KiB
abf0025	6.44 MiB	7.43 MiB	1012.19 KiB

[buenaflor]

I believe there's still the issue of the async calls not being awaited - finish and start time to display in didPush

[buenaflor]

as discussed let's find a more user friendly way to solve this. perhaps through a widget

[buenaflor]

As discussed let's try to use the spanId similar to react native

[buenaflor]

I like the approach manual and widget approach!

let's try and figure out how to handle the root transactions.

maybe it makes sense to have a central place where the navigator and the app start fetches the transaction from

[buenaflor]

Looks good so far, I'll do another in-depth pass later.