Update CoroutineScope docs to recommend explicit scope

CoroutineScope documentation currently recommends the following code pattern:

class MyActivity : AppCompatActivity(), CoroutineScope by MainScope() {
    ...
}

It’s time to update it to explict scope style, which seems to be winning in its clarity and popularity:

class MyActivity : AppCompatActivity() {
    private val scope = MainScope() 
    ...
}

[kpritam]

@kpritam

class Script : CoroutineScope {
    private val executor = ... // Separate variable to close it later
    private val scriptScope = CoroutineScope(executor)
}

Thanks @qwwdfsad , Just to confirm, do you mean like this?

class Script {
    private val executor = Executors.newSingleThreadExecutor().asCoroutineDispatcher()
    private val scriptScope = CoroutineScope(executor)
    init {
        scriptScope.launch { delay(1000) }
    }
}

[kpritam]

As per this guideline, can you please help me with the following example if any changes need to be done?

class Script : CoroutineScope {
    private val executor = Executors.newSingleThreadExecutor().asCoroutineDispatcher()
    private val job = Job()

    override val coroutineContext: CoroutineContext get() = job + executor
    
    // ....
}