1 、Kotlin之函数作为参数传递

我们在写BaseQuickAdapter适配器的时候，有时候嵌套多个BaseQuickAdapter，如果最里面的view触发点击事件，我们可以把函数作为参数通过构造函数一层一层传递进去。

2、代码测试

 private var test: (Boolean, Int, Int) -> Unit = {result, a, b ->
        Log.i(TAG, "rseult is:" + result)
        Log.i(TAG, "a is:" + a)
        Log.i(TAG, "b is:" + b)
        test1(result, a, b)
    }

    private var test1: (Boolean, Int, Int) -> Unit = { result1, a1, b1 ->
        Log.i(TAG, "rseult1 is:" + result1)
        Log.i(TAG, "a1 is:" + a1)
        Log.i(TAG, "b1 is:" + b1)
    }

    class A(var result: Boolean, var a: Int, var b: Int, var test1: (Boolean, Int, Int) -> Unit) {
        fun testA() {
            test1(result, a, b)
        }
    }

    
    fun dodo() {
        var a = A(true, 1, 2, test)
        a.testA()
    }