Android kotlin fragment中使用布局控件

注意控件不能从 onCreateView中获取，而是要从 onViewCreated中获取和调用，具体代码如下：

package cn.showmac.tool.fragment

import android.os.Bundle
import android.support.v4.app.Fragment
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import cn.showmac.tool.R
import cn.showmac.tool.cos.Device
import cn.showmac.tool.cos.DeviceCallback
import cn.showmac.tool.cos.SharedKeyResponse
import cn.showmac.tool.cos.StateResponse
import kotlinx.android.synthetic.main.fragment_init.*
import org.greenrobot.eventbus.EventBus

/**
 * 描述:初始化的页面
 * 创建人:菜籽
 * 创建时间:2017/12/1 下午3:18
 * 备注:
 */

class InitFragment : Fragment(), View.OnClickListener {

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        return inflater.inflate(R.layout.fragment_init, container, false)
    }

    override fun onViewCreated(view: View?, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        get_cos_version.setOnClickListener(this)
        create_key.setOnClickListener(this)
    }

    override fun onClick(v: View) {
        when (v.id) {
            R.id.get_cos_version
            ->
                Device.getCosVersion(object : DeviceCallback {
                    override fun onResult(result: Boolean, data: String) {
                        Log.d("test", "获取到COS版本")
                        EventBus.getDefault().post(StateResponse("获取COS版本：" + (if (result) "成功" else "失败") + ",版本:" + data))
                    }
                })

            R.id.create_key
            ->
                Device.createSessionKey(object : DeviceCallback {
                    override fun onResult(result: Boolean, data: String) {
                        Log.d("test", "生成会话秘钥：" + (if (result) "成功" else "失败") + "data:$data")
                        EventBus.getDefault().post(StateResponse("生成回话秘钥：" + if (result) "成功" else "失败"))
                        EventBus.getDefault().post(SharedKeyResponse(data))
                    }
                })
        }
    }

}