Hello Android

代码

button.setOnClickListener {
            val alertDialog = AlertDialog.Builder(this)
            alertDialog.setTitle("提示")
            alertDialog.setIcon(R.mipmap.ic_launcher)
            val message = alertDialog.setMessage("HelloWorld")
            alertDialog.setPositiveButton("确定"
                    /**
                     * 确定操作
                     */
            ) { paramAnonymousDialogInterface, paramAnonymousInt -> }
            alertDialog.setNegativeButton("取消"
                    /**
                     * 取消操作
                     */
            ) { paramAnonymousDialogInterface, paramAnonymousInt -> }

            /***
             * 设置点击返回键不会消失
             * */
            alertDialog.setCancelable(false).create()

            alertDialog.show()

            val intent = Intent()
            intent.action = Intent.ACTION_CALL
            intent.data = Uri.parse("tel://119")
            startActivity(intent)
        }

###备注

//创建对象

val alertDialog = AlertDialog.Builder(this)

//设置对话框标题

alertDialog.setTitle("标题")

//设置图标

alertDialog.setIcon(R.mipmap.ic_launcher)

//设置内容

val message = alertDialog.setMessage("Hello Android")

//设置点击返回键对话框不消失

alertDialog.setCancelable(false).create()

//显示对话框

alertDialog.show()

控件id.setOnClickListener{

​ ///事件内容

}

对话框对象AlertDialog

对话框引用android.support.v7.app.AlertDialog