内部类方式是最
private val handler = Handler()
private var count = 0;

inner private class Counter:Runnable{
override fun run(){
count++
tv_result.text = "当前计数值为：$count"
handler.postDelayed(this,1000)
}
}

handler.post(Counter()

匿名内部类
private val counter = object:Runnable{
override fun run(){
count++
tv_result.text = "当前计数值为：$count"
handler.postDelayed(this,1000)
}
}

handler.post(counter)

匿名函数

private val counter = Runnable{
count++
tv_result.text ="当前计数值为：$count"
}
hander.post(counter)

匿名实例
handler.post(Runnable{
count++
tv_result.text = "当前计数值为：$count"
})

匿名实例精简

handler.post{
count+
tv_result.text = "当前计算值为：count"
},1000)