android View ，RecyclerView的item、childView防重点

利用kotlin扩展函数来实现优雅的防重点，如果对kotlin扩展函数没有太多了解的可以先看一下资料，本案例RecyclerView的adapter采用BaseRecyclerViewAdapterHelper框架
直接上代码，新建一个kt文件，把以下代码拷进去：

private object SingleClickObject {
    var delayTime = 0L
    //由于共用一个last，会造成点击完一个，快速去点击另一个，也会被屏蔽，可以维护多个变量来解决
    var lastClickTime = 0L
}

/**
 * view防重点
 */
fun  T.singleClick(time: Long = 1000, block: (T) -> Unit) {
    SingleClickObject.delayTime = time
    setOnClickListener {
        if (clickEnable()) {
            block(it as T)
        }
    }
}


/**
 * BaseQuickAdapter item防重点
 */
fun  BaseQuickAdapter.singleItemClick(time: Long = 1000, block: (position: Int) -> Unit) {
    SingleClickObject.delayTime = time
    setOnItemClickListener { _, _, position ->
        if (clickEnable()) {
            block(position)
        }
    }
}

/**
 * BaseQuickAdapter item子view防重点
 *需要什么字段回调，自己加，这里由于只需要view的id，所以另外两个没有用
 */
fun  BaseQuickAdapter.singleChildItemClick(time: Long = 1000, block: (viewId: Int) -> Unit) {
    SingleClickObject.delayTime = time
    setOnItemChildClickListener { _, view, _ ->
        if (clickEnable()) {
            block(view.id)
        }
    }
}

/**
 * 是否可点击
 */
private fun clickEnable(): Boolean {
    var flag = false
    val currentClickTime = System.currentTimeMillis()
    if (currentClickTime - SingleClickObject.lastClickTime >= SingleClickObject.delayTime) {
        SingleClickObject.lastClickTime = currentClickTime
        flag = true
    }
    System.out.println(flag)
    return flag
}

        //tabLayout的选中监听
        fun  T.tabSelected(block: (position: Int) -> Unit) {
          addOnTabSelectedListener(object : TabLayout.OnTabSelectedListener {
          override fun onTabReselected(p0: TabLayout.Tab?) {

          }

          override fun onTabUnselected(p0: TabLayout.Tab?) {
          }

        override fun onTabSelected(p0: TabLayout.Tab) {
            block(p0.position)
        }

    })

}

使用：

        //实例化adapter
        val adapter = QuickAdapter()
        val data = ArrayList()
        rv_main.layoutManager = LinearLayoutManager(this)
        rv_main.adapter = adapter
        data.apply {
            add("测试1")
            add("测试2")
            add("测试3")
            add("测试4")
        }
        adapter.setNewData(data)

        //TextView点击
        tv_click.singleClick {
            Log.d("测试view", System.currentTimeMillis().toString())
        }

        //自定义间隔
        tv_click.singleClick(500) {
            Log.d("测试view(间隔500毫秒)", System.currentTimeMillis().toString())
        }

        //RecyclerView的item点击
        adapter.singleItemClick {
            Log.d("测试item", System.currentTimeMillis().toString())
        }

         //RecyclerView的ChildView点击
        adapter.singleChildItemClick {
            if (it == R.id.bt_test) {
                Log.d("测试child", System.currentTimeMillis().toString())
            }

        }
        //tabLayout选中
        tl_year.tabSelected {
               Log.d("tabLayout选中的位置：",it)
        }

也可以采用aspectj进行AOP切面，来防重点，各有各的优势，在正在开发的项目中，两种方式都在用，这里就不一一介绍了！

Github Demo地址

完，有问题随时沟通~！