Easy_localization: title and bottom navigation bar item not translate after setting local success.

[liudonghua123]

I have a page which contains some bottom navigationbar item and in one page, I set the locale and the strings of current page changed except the appbar title and bottom navigationbar items. I have to click any of the navigationbar item, then it changed.
I simplify the code and make a demo on https://github.com/liudonghua123/redux_thunk_example/tree/locale, and you can reproduce the issue on https://liudonghua123.github.io/redux_thunk_example/

I checked the console log and find after changing the locale, the translation is not change.

localePath: assets/langs/en-US.json
load true
home build, locale: en_US, title: App
select locale: zh_CN
[INFO] LoggingMiddleware: {Action: LocaleAction{locale: zh_CN}, State: AppState{locale: zh_CN}, ts: 2020-03-28 21:57:25.121}
localePath: assets/langs/zh-CN.json
home build, locale: zh_CN, title: App
load true
home build, locale: zh_CN, title: 应用

The initial page is

When I change the language to the Chinese, the current page translated except the title and bottom bar items. I have to click any of the bottom item to make the whole page translate.

I have spent a few days on this strange issue.
I tested on android/web/windows platform, all of them have this problem.

[liudonghua123]

@aissat Hi, I add some debug info on the following location.

And I find that when I change the locale back and forth, this method is always invoked, it seems lack of cache the language assets. Maybe I am wrong about this.

[liudonghua123]

If I add a debug print in the builder of MaterialApp, I got the following error. It seems have something in common with https://github.com/aissat/easy_localization/issues/103.

[liudonghua123]

I tried to rewrite and test it with another package (https://pub.dev/packages/flutter_translate), it seems has the same issue.

[aissat]

If I add a debug print in the builder of MaterialApp, I got the following error. It seems have something in common with #103.

same issue #103

[liudonghua123]

@aissat Hi, I think it's not the same as #103, the bottom navigation bar item is not translate, that's not the same as appbar.

[liudonghua123]

There is a similar issue on https://github.com/bratan/flutter_translate/issues/38, after some debug, I found it's async/await issue (https://github.com/bratan/flutter_translate/pull/39), However I haven't find the reason of this issue in easy_localization.
The internal implementation of EasyLocalization.of(context).locale = locale; is not same as changeLocale(context, locale); which flutter_translate does.

[aissat]

Check #116