kotlin 一些使用

1.Handler使用

//1.初始化Handler  
var mHandler = Handler {
        if (it.what == 0) {
            it.target.sendEmptyMessageDelayed(0, 2000)
        }
        false
    }

 //2.线程中调用
 mHandler.sendEmptyMessage(0)

//3.搽屁股
mHandler.removeCallbacksAndMessages(null)

2.类

class Person(var name: String, var age: Int)

3.跳转

startActivity(Intent( MainActivity@this,MainActivity::class.java))