Dialog共通写法（一个button）

一个button的：

package jp.co.hyakujushibank.view

import android.app.Dialog
import android.content.Context
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.Window
import android.widget.Button
import android.widget.ImageView
import android.widget.TextView
import jp.co.hyakujushibank.securestarter.R

@Suppress("DEPRECATION")
/**
 *
 * Created by liuhaolong on 2017/07/05.
 */
class AlertDialog : Dialog {
    private var supContext: Context? = null
    private var dialogMsg: String? = ""
    private var buttonText: String? = "閉じる"
    private var imageRes: Int = 0
    private var titleFlag: Boolean = false

    constructor(supContext: Context, dialogMsg: String) : super(supContext) {
        this.supContext = supContext
        this.dialogMsg = dialogMsg
        this.buttonText = buttonText
    }

    constructor(supContext: Context, dialogMsg: String, buttonText: String) : super(supContext) {
        this.supContext = supContext
        this.dialogMsg = dialogMsg
        this.buttonText = buttonText
    }

    constructor(supContext: Context, dialogMsg: String, buttonText: String, imageRes: Int) : super(supContext) {
        this.supContext = supContext
        this.dialogMsg = dialogMsg
        this.buttonText = buttonText
        this.imageRes = imageRes
    }

    constructor(supContext: Context, dialogMsg: String, buttonText: String, imageRes: Int, titleFlag: Boolean) : super(supContext) {
        this.supContext = supContext
        this.dialogMsg = dialogMsg
        this.buttonText = buttonText
        this.imageRes = imageRes
        this.titleFlag = titleFlag
    }

    //クリックリスナーインターフェース
    var clickListenerInterface: ClickListenerInterface? = null

    interface ClickListenerInterface {
        //確認
        fun doConfirm()
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        requestWindowFeature(Window.FEATURE_NO_TITLE)
        //初期化
        init()

    }

    fun setClicklistener(clickListenerInterface: ClickListenerInterface) {
        //クリックリスナーインターフェース
        this.clickListenerInterface = clickListenerInterface
    }

    fun init() {
        //充填画面
        val inflater = LayoutInflater.from(supContext)
        val view = inflater.inflate(R.layout.alert_dialog, null)
        setContentView(view)
        //メッセージ
        val msgTitleText = view.findViewById(R.id.msg_title_text) as TextView
        if (titleFlag) {
            msgTitleText.visibility = View.VISIBLE
        }
        //メッセージ
        val msgText = view.findViewById(R.id.confirm_msg_text) as TextView
        //確認
        val clickBtn = view.findViewById(R.id.click_btn) as Button
        //画像
        val dialogImage = view.findViewById(R.id.dialog_image) as ImageView
        if (imageRes == 0) {
            dialogImage.setImageDrawable(supContext!!.resources.getDrawable(R.mipmap.ic_error))
        } else {
            dialogImage.setImageDrawable(supContext!!.resources.getDrawable(imageRes))
        }
        //メッセージ
        msgText.text = dialogMsg
        //確認
        clickBtn.text = buttonText
        //許可キャンセル
        setCancelable(false)
        setCanceledOnTouchOutside(false)
        //確認
        clickBtn.setOnClickListener(clickListener())

        val dialogWindow = window
        val lp = dialogWindow.attributes
        val d = context.resources.displayMetrics
        lp.width = (d.widthPixels * 0.95).toInt()
        dialogWindow.attributes = lp
    }

    inner class clickListener : View.OnClickListener {
        override fun onClick(v: View) {
            val id = v.id
            when (id) {
            //ボタン
                R.id.click_btn -> clickListenerInterface!!.doConfirm()
            }
        }
    }
}

如何用：

val alert = AlertDialog(activity, resposeAllTransaction.resultData!!.error_messege!!)
alert.setClicklistener(object : AlertDialog.ClickListenerInterface {
    override fun doConfirm() {
        alert.dismiss()
    }
})
alert.show()

alertAgree = AlertDialog(this@RulesActivity, "利用規定に同意してからお進みください", "閉じる")
alertAgree!!.setClicklistener(object : AlertDialog.ClickListenerInterface {
    override fun doConfirm() {
        closeAlertAgree()
    }
})

val alert = AlertDialog(this@CheckPassCodeActivity, "パスコードを５回間違えたので、ログアウトします。", "閉じる", R.mipmap.ic_error)
alert.setClicklistener(object : AlertDialog.ClickListenerInterface {
    override fun doConfirm() {
        Api.logoutForPasscodeApi(this@CheckPassCodeActivity)
        alert.dismiss()
    }
})
alert.show()

val alert = AlertDialog(context, msg, "閉じる", R.mipmap.info, true)
alert.setClicklistener(object : AlertDialog.ClickListenerInterface {
    override fun doConfirm() {
        alert.dismiss()
    }
})