Added a Custom Dialog Builder 🛠

[moazelsawaf]

Hello Dear 👋🏻

In this PR I have added a Custom Dialog Builder to build a customized upgrader dialog 🛠

Previously there were just two default styles which are Material & Cupertino with the ability to determine whether to use UpgradeDialogStyle.cupertino or UpgradeDialogStyle.material, now I am introduction a third style which is UpgradeDialogStyle.custom. 📱

When you set the UpgradeDialogStyle to be custom, you have to define a customDialogBuilder callback which receives 3 important pieces of information about the update which are: title, message, and releaseNotes and returns the custom built dialog 💪🏻

Example: ✅

[codecov[bot]]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (d1e5a77) 93.08% compared to head (f54610c) 92.33%. Report is 112 commits behind head on master.

:exclamation: Current head f54610c differs from pull request most recent head 15ed7ce. Consider uploading reports for the commit 15ed7ce to get more accurate results

Files	Patch %	Lines
lib/src/upgrader.dart	42.85%	8 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #224      +/-   ##
==========================================
- Coverage   93.08%   92.33%   -0.76%     
==========================================
  Files          10       10              
  Lines         984      991       +7     
==========================================
- Hits          916      915       -1     
- Misses         68       76       +8     

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[cipchk]

Any progress? I really need custom mode. Currently there will be many blank spaces:

[moazelsawaf]

@cipchk I am just very busy at this period of time, I will try hard to complete this PR in the next few days Insha'Allah.

[Nirajn2311]

Hi @moazelsawaf any update? We also need this feature before our next major release. We can take over and finish this if you're still not able to work on this.

[moazelsawaf]

I have pushed the remaining parts of this feature and also applied all review requests, sorry for being late 🙏🏻

[Nirajn2311]

Hi @larryaasen , any chance you could give this another review.

[StarProxima]

Hi @larryaasen, could you check it out?

[larryaasen]

There is a new version https://pub.dev/packages/upgrader/versions/9.0.0-alpha.1 that is in test and provides a way to handle this. Look at the examples included with the package.

[larryaasen]

@moazelsawaf Look at the latest version of this package with a latest customization options. I think it now meets your needs. If not, please open a new issue with your details.