[PageTransitionsBuilder] ZoomPageTransition causing widget rebuild three times #58345
Description
There's a reproducible demo, try it with https://dartpad.cn/fb30323847b7e0aee6c61bdbecacd060 . It happens on all platforms.
Steps to Reproduce
- Create a
PageRouteBuilderwith_ZoomPageTransition. - Add log to
buildmethod inside new page. - Log printed 3 times total.
Expected results: Build only once.
Actual results: Widget built 3 times.
Logs
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.363
I/flutter ( 7614): State's hashCode: 48367006
I/flutter ( 7614): build: 2020-05-31 12:33:48.365
I/flutter ( 7614): built times: 0
I/flutter ( 7614): built times: 1
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.414
I/flutter ( 7614): State's hashCode: 48367006
I/flutter ( 7614): build: 2020-05-31 12:33:48.422
I/flutter ( 7614): built times: 1
I/flutter ( 7614): built times: 2
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.454
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.467
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.480
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.494
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.507
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.521
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.534
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.548
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.564
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.588
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.602
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.615
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.628
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.643
I/flutter ( 7614): build transition: 2020-05-31 12:33:48.660
I/flutter ( 7614): State's hashCode: 48367006
I/flutter ( 7614): build: 2020-05-31 12:33:48.664
I/flutter ( 7614): built times: 2
I/flutter ( 7614): built times: 3
flutter doctor
[√] Flutter (Channel stable, v1.17.2, on Microsoft Windows [Version 10.0.18363.836], locale zh-CN)