Notification issues on Chinese-vendor phones

[iqfareez]

What's going on?

This issue similar to #77. Where I found that Chinese vendor phones (like Xiaomi, Realme etc.) has a restriction where apps can't autostart which prevented apps to fire a scheduled notification.

Some of the user report (From Google Play Store)

User 1

At first using the app I was pleased . After sometime I don't get azan notification anymore. Uninstall and installing a few times still no azan on each prayer time. Keep the apps because it shows dhuha time which is absent in most prayer app.

User 2

assalamualaikum. pada awalnya, aplikasi ini ada beri notifikasi(azan) bila masuk waktu solat. tapi beberapa hari selepas tu, sudah tidak ada lagi notifikasi daripada aplikasi ini sehingga sekarang. saya menggunakan oppo. adakah aplikasi ini tidak berfungsi untuk oppo?

Yup there are many more.

Proposal

• Add more in app message to guide the user around the issue. Probably make the message permanent, or mention about the issue in the onboarding screen etc.
• Use AlarmManager API in additions to the current NotificationCompat API. #137

Challenges

• Code complexity.
• I don't have any Chinese-vendor phone 😓. Yeah, it causes inconvenience for me since I can't test the app on those devices. So, I may do something that is predictable, ie, if it doesn't break on my devices, it also not going to break on other devices (but that's not always the case 🤣) I just got a Redmi Note 11 hehe, here is mpt running on that phone.

[iqfareez]

Not sure if this was related

Oppo?! (Speaking Jawa)

[iqfareez]

We can try to add prompt like these;

Seems like this package, disable_battery_optimization is just what we needed 🤩

[iqfareez]

Other similar packages to consider:

• https://pub.dev/packages/android_autostart
• https://pub.dev/packages/auto_start_flutter

[iqfareez]

Related article by howtogeek.com: https://www.howtogeek.com/805157/google-explains-your-android-phones-broken-notifications/

Modern versions of Android strike a decent balance between extending battery life (by pausing or limiting background tasks) and still staying connected to cloud servers that provide push notifications. However, some manufacturers take that a step further for their devices, by implementing more battery-saving techniques that can lead to background services breaking. OnePlus has had issues over the years with unreliable notifications, as well as the Chinese versions of many Xiaomi, Oppo, and Vivo phones.

This Twitter user express his annoyance: https://twitter.com/bencsin/status/1522100809831370752?s=20&t=R7Xw6IpT99TPNjQJHUHywQ

Hope these OEMs fixes all this crap.