Several Improvements

[awoisoak]

I tried to modify the minimum from the original code but some of the current issues required quite a few changes, sorry in advance for that.

1. Main change is that it checks the existence of the activities before attempting to open them. Now if the activity can't really be opened, getAutoStartPermission will return false. Related issues: simple code for check intent is exist  #29 Overhaul activity checking to be cleaner #30

2. isAutoStartPermissionAvailable now allows the caller to only consider the permissions available if the library is able to open the corresponding settings screen (in order to avoid false positives). For backward compatibility with previous versions of the library, by default autostart is considered available even if the library does not support the specific screen.

3. Inverted the Huawei intents to process the newer ones first (I didn't invert the rest of the manufacturers as I can't test all of them). This fixes the known issue with Huawei P 10 Lite: Problem with Huawei P10 #38 [tested]

4. Use Build.BRAND.toLowerCase(Locale.ROOT) to avoid issues with certain languages as Turkish as mentioned here: toLowerCase fail #66 [tested]

5. Includes FLAG_ACTIVITY_NEW_TASK as optional so that the library can be called outside an Activity.
   Fix this: AndroidRuntimeException: Calling startActivity() #42 (related to PR: Added for react native project #62) [Tested]

6. Add a new activity to be opened in Samsung devices.
   Prioritize this one as it opens the exact Sleeping Apps setting
   com.samsung.android.lool/com.samsung.android.sm.battery.ui.usage.CheckableAppListActivity
   If that screen does not exist it will fallback to this one which opens the main battery settings
   com.samsung.android.lool/com.samsung.android.sm.battery.ui.BatteryActivity
   That should fix these issues :Not working in Samsung note 10  #37 Not Working in Samsung Galaxy M20 #33 [Tested with Note 8, Note 9 & Note 20]

7. Handle OnePlus newer devices (via intent action com.android.settings.action.BACKGROUND_OPTIMIZE)
   Should fix these: OnePlus 6 #36 [OnePlus 7 Pro] getAutoStartPermission exception #45 OnePlus Android 11 fails to open ChainLaunchAppListActivity #67 [Tested with OnePlus 7 pro (10), Oneplus 7T(10) & OnePlus 8(11)]

[judemanutd]

@Prometheus3k I think you guys will need to sort out which one actually work here because I don't have the resources to actually verify this. @awoisoak for context, there is a PR that updates this very line.

[Prometheus3k]

My PR is a restoration of @alperenbabagil Original work that was approved previously.
#58

However I will close my PR as I haven't tested it (assumed the approval meant it worked).

[awoisoak]

Thanks, I just tested with Locale.ROOT as is the approach we are following in similar scenarios in our side.

[awoisoak]

@judemanutd I added an extra commit to make sure the class is only instantiated once. Ideally the class should probably be a Kotlin object but for backward compatibility with current release I kept the getInstance() method

[judemanutd]

@awoisoak can't thank you enough for these changes and testing them out.