How to solve latency issue in quiz application?

六眼飞鱼酱① 提交于 2020-01-20 08:46:51

问题


I have array with more elements than posted here. I show only 2 in post but there are 10 showGreen variables, 10 additional threads, 10 "TextViews" and 10 isGreenBackgroundShouldAppear functions. As you see, when answer is correct, TextView1 or TextView2 becomes green on ACTION_DOWN and sets random image in image_view thus preparing next question. The problem is that if I use 10 threads which separately set value of answer for every TextView every 500ms, if user press correct answer TextView too fast, it will be treated as wrong answer (red). If I set from 500ms to 300ms or less, sometimes showGreen never gets updated correctly. Do you maybe know any solution for my problem?

    class Cats : AppCompatActivity() {

                var cats = intArrayOf(
                    R.drawable.cat1,
                    R.drawable.cat2,
                    R.drawable.cat3,
                    R.drawable.cat4,
                    R.drawable.cat5,
                    R.drawable.cat6,
                    R.drawable.cat7,
                    R.drawable.cat8,
                    R.drawable.cat9,
                    R.drawable.cat10,
                    R.drawable.cat11,
                    R.drawable.cat12,
                    R.drawable.cat13,
                    R.drawable.cat14,
                    R.drawable.cat15,
                    R.drawable.cat16,
                    R.drawable.cat17
                )

                lateinit var random: Random

                var showGreen1 = false
                var showGreen2 = false

                val runnable1 = Runnable {
                    while (true) {
                        showGreen1 = isGreenBackgroundShouldAppear1()
                        Thread.sleep(500)
                    }
                }
                val runnable2 = Runnable {
                    while (true) {
                        showGreen2 = isGreenBackgroundShouldAppear2()
                        Thread.sleep(500)
                    }
                }
                 override fun onCreate(savedInstanceState: Bundle?) {
                    super.onCreate(savedInstanceState)

                      random = Random()
                    Thread(runnable1).start()
                Thread(runnable2).start()

                TextView1.setOnTouchListener(View.OnTouchListener { view, motionEvent ->
                            when (motionEvent.action) {

                                MotionEvent.ACTION_DOWN -> {
                                    if (showGreen1) {
                                        TextView1.setBackgroundResource(R.color.green);
                                image_view.setImageResource(cats[random.nextInt(cats.size)])
/*showGreen1 = isGreenBackgroundShouldAppear1()
showGreen2 = isGreenBackgroundShouldAppear2()*/
                                    } else {
                                        TextView1.setBackgroundResource(R.color.red);

                                    }
                                }
                                MotionEvent.ACTION_UP -> {
                                    TextView1.setBackgroundResource(R.color.white)
                                }


                            }
                            return@OnTouchListener true
                        })

                        TextView2.setOnTouchListener(View.OnTouchListener { view, motionEvent ->
                            when (motionEvent.action) {

                                MotionEvent.ACTION_DOWN -> {
                                    if (showGreen2) {
                                        TextView2.setBackgroundResource(R.color.green);
                                        image_view.setImageResource(cats[random.nextInt(cats.size)])
                                    } else {
                                        TextView2.setBackgroundResource(R.color.red);

                                    }
                                }
                                MotionEvent.ACTION_UP -> {
                                    TextView2.setBackgroundResource(R.color.white)
                                }


                            }
                            return@OnTouchListener true
                        })
            /*while(true)
            {
            showGreen1 = isGreenBackgroundShouldAppear1()

            showGreen2 = isGreenBackgroundShouldAppear2()

            }*/




                        fun isGreenBackgroundShouldAppear1(): Boolean {
                    return image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat1
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat2
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat3
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat4
                    )?.constantState ||


                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat5
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat6
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat7
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat8
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat9
                    )?.constantState
                }



                fun isGreenBackgroundShouldAppear2(): Boolean {
                    return image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat10
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat11
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat12
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat13
                    )?.constantState ||


                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat14
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat15
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat16
                    )?.constantState ||
                            image_view.drawable.constantState == ContextCompat.getDrawable(
                        this,
                        R.drawable.cat17
                    )?.constantState
                }
    }

来源:https://stackoverflow.com/questions/59523159/how-to-solve-latency-issue-in-quiz-application

易学教程内所有资源均来自网络或用户发布的内容,如有违反法律规定的内容欢迎反馈
该文章没有解决你所遇到的问题?点击提问,说说你的问题,让更多的人一起探讨吧!