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kotlinlang

Changing a device theme does not effect my Jetpack Compose theme. Anyone faced this issue before?

I've found a reason. Seems like using
```MainActivity : AppCompatActivity()```
breaks theme change while this doesnt
```MainActivity : ComponentActivity()```

Device or system theme. `AppCompatActivity` doesn't change theme on configuration change, i.e. if you started of with `light` theme, changing in setting does not reflect change in app. Using `ComponentActivity` does work. Seems like explicitly setting it up does the job:

```private fun setSystemTheme() {
    val uiModeManager = getSystemService(AppCompatActivity.UI_MODE_SERVICE) as UiModeManager
    val isDarkTheme = uiModeManager.nightMode == UiModeManager.MODE_NIGHT_YES
    AppCompatDelegate.setDefaultNightMode(
        if (isDarkTheme) AppCompatDelegate.MODE_NIGHT_YES else AppCompatDelegate.MODE_NIGHT_NO
    )
}```

I do have to use `AppCompatActivity` cause of localization <https://github.com/phrase/android-sdk-example/blob/main/app/src/main/java/com/phrase/example/BaseActivity.java|library> we're using called Phrase.

compose on its own doesn't know about android or know what device themes are. this means you would need to trigger a recomposition when the theme changes.

AFAIK `ComponentActivity()` is what the Android team recommends using with compose, so i would either open an issue at the library to change their code, or check the source of how ComponentActivity handles this.

You will get better help at <#C04TPPEQKEJ|compose-android>

check in the theme if you provide remember for colorsheme
like so
```CompositionLocalProvider(
    LocalAppDimens provides dims,
    LocalOrientationMode provides orient,
    LocalQrColorScheme provides remember {colorScheme} ,```
while changing the theme it wont work