i am new to Android development with Kotlin pogramming language, i am not able to understand this code below, what i am guessing is that an instance(scanResultAdapter) is created from ScanResultAdapter class, this class has the code for recyclerView adapter. This code is in MainActivity.kt file in punchThrough's article about BLE -

    ScanResultAdapter(scanResults) { result ->
        // User tapped on a scan result
        if (isScanning) {
            stopBleScan()
        }
        with(result.device) {
            Log.w("ScanResultAdapter", "Connecting to $address")
            connectGatt(context, false, gattCallback)
        }
    }
}

CodePudding user response：

Which point you don't understand?

Regards your guess(the logic of code), that's right, I think.

It seems that you are not familiar with Kotlin, you can check them one by one. For an instance, I don't know this style code:

ScanResultAdapter(scanResults) { result ->
  ....
}

{ result -> .. }, I need to know that's the Lambdas Expressions Here's a reference

Maybe I don't understand the with of Kotlin, refer to this document and so on.

CodePudding user response：

You are right. (scanResults) is the first argument of constructor. Second is callback of click listener in curly brackets. When user tap on a device in the list this code in braces {} will be executed. Kotlin can take out of parentheses () arguments if it is functions.