如何在Kotlin的.forEach迭代中获取Set中的某个元素

Question

为了获取满足if条件的特定元素，“ pairedDevices”之后的表达式是什么？

//creating a SET of paired devices
    val pairedDevices: Set<BluetoothDevice>? = bluetoothAdapter?.bondedDevices

    //for each paired device
    pairedDevices?.forEach { device ->
        if (device.name == "HC-05") {
            val hc05 = pairedDevices

        }

    }

Answer 1

我认为您正在寻找

hc05 = pairedDevices?.first { it.name == "HC-05" }