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Summary of ChangesHello @HarishV14, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request introduces a proof of concept for integrating interactive quizzes directly into video content playback. The changes enable the application to fetch quiz questions associated with specific video timestamps, pause the video at these points, display a quiz dialog to the user, and resume playback after the user interacts with the quiz. The implementation supports various question types and provides immediate feedback, enhancing the interactive learning experience. Highlights
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Code Review
This pull request introduces a proof-of-concept for video quiz support, a significant feature enhancement. The implementation spans across the UI, networking, and data layers, including a new dialog for displaying questions, logic for triggering quizzes at specific video timestamps, and corresponding data models and service calls. The overall approach is sound. I've provided several suggestions to improve code quality, maintainability, and testability. Key areas for improvement include refactoring complex methods, addressing potential testability issues, and handling all states in asynchronous operations.
| import android.graphics.Color | ||
| import android.graphics.Typeface | ||
| import android.os.Bundle | ||
| import android.text.InputType | ||
| import android.util.Log |
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The imports for android.graphics.Color, android.graphics.Typeface, and android.util.Log are unused in this file. Please remove them to keep the code clean.
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| private var answerViews = mutableListOf<View>() | ||
| private var selectedAnswerIds = mutableListOf<Long>() | ||
| private var isCorrect = false |
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The class property isCorrect is only assigned and used within the checkButton's setOnClickListener. It should be converted to a local variable (val isCorrect = checkAnswers()) inside that listener (on line 97) to reduce its scope and improve clarity. Please remove this property and declare it locally.
| private fun buildQuestionUI( | ||
| context: Context, | ||
| container: LinearLayout, | ||
| question: NetworkVideoQuestion | ||
| ) { | ||
| val inflater = LayoutInflater.from(context) | ||
| when (question.question.type) { | ||
| "R" -> { | ||
| val radioGroup = RadioGroup(context) | ||
| radioGroup.orientation = LinearLayout.VERTICAL | ||
| radioGroup.id = View.generateViewId() | ||
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| val radioButtons = mutableListOf<RadioButton>() | ||
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| question.question.answers?.forEach { answer -> | ||
| val optionView = inflater.inflate(R.layout.list_item_quiz_radio, radioGroup, false) | ||
| val radioButton = optionView.findViewById<RadioButton>(R.id.quiz_radio_button) | ||
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| radioButton.tag = answer | ||
| radioButton.text = HtmlCompat.fromHtml( | ||
| answer.textHtml, | ||
| HtmlCompat.FROM_HTML_MODE_LEGACY | ||
| ) | ||
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| radioButton.setOnCheckedChangeListener { buttonView, isChecked -> | ||
| if (isChecked) { | ||
| radioButtons.forEach { rb -> | ||
| if (rb != buttonView) { | ||
| rb.isChecked = false | ||
| } | ||
| } | ||
| } | ||
| checkButton?.isEnabled = radioButtons.any { it.isChecked } | ||
| } | ||
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| radioButtons.add(radioButton) | ||
| radioGroup.addView(optionView) | ||
| answerViews.add(optionView) | ||
| } | ||
| container.addView(radioGroup) | ||
| answerViews.add(radioGroup) | ||
| } | ||
| "C" -> { | ||
| question.question.answers?.forEach { answer -> | ||
| val optionView = inflater.inflate(R.layout.list_item_quiz_checkbox, container, false) | ||
| val checkBox = optionView.findViewById<CheckBox>(R.id.quiz_check_box) | ||
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| checkBox.tag = answer | ||
| checkBox.text = HtmlCompat.fromHtml( | ||
| answer.textHtml, | ||
| HtmlCompat.FROM_HTML_MODE_LEGACY | ||
| ) | ||
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| checkBox.setOnCheckedChangeListener { _, _ -> | ||
| val hasSelection = answerViews.any { view -> | ||
| view.findViewById<CheckBox>(R.id.quiz_check_box)?.isChecked == true | ||
| } | ||
| checkButton?.isEnabled = hasSelection | ||
| } | ||
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| container.addView(optionView) | ||
| answerViews.add(optionView) | ||
| } | ||
| } | ||
| "G" -> { | ||
| val flexboxLayout = FlexboxLayout(context) | ||
| flexboxLayout.flexWrap = FlexWrap.WRAP | ||
| flexboxLayout.alignItems = com.google.android.flexbox.AlignItems.CENTER | ||
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| val html = question.question.questionHtml | ||
| val cleanText = HtmlCompat.fromHtml(html, HtmlCompat.FROM_HTML_MODE_LEGACY).toString().trim() | ||
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| val pattern = Pattern.compile("\\[(.*?)\\]") | ||
| val matcher = pattern.matcher(cleanText) | ||
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| val gapFillEditTexts = mutableListOf<EditText>() | ||
| var lastEnd = 0 | ||
| while (matcher.find()) { | ||
| val textBefore = cleanText.substring(lastEnd, matcher.start()) | ||
| if (textBefore.isNotEmpty()) { | ||
| val textView = TextView(context) | ||
| textView.text = textBefore | ||
| textView.textSize = 18f | ||
| textView.setTextColor(ContextCompat.getColor(context, R.color.testpress_table_text)) | ||
| flexboxLayout.addView(textView) | ||
| } | ||
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| val editText = EditText(context) | ||
| editText.setSingleLine(true) | ||
| editText.inputType = InputType.TYPE_CLASS_TEXT or InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | ||
| editText.minEms = 3 | ||
| editText.setTextColor(ContextCompat.getColor(context, R.color.testpress_table_text)) | ||
| editText.setBackgroundResource(R.drawable.quiz_gap_border_normal) | ||
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| gapFillEditTexts.add(editText) | ||
| editText.addTextChangedListener(object : android.text.TextWatcher { | ||
| override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {} | ||
| override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {} | ||
| override fun afterTextChanged(s: android.text.Editable?) { | ||
| val allFilled = gapFillEditTexts.all { it.text.toString().trim().isNotEmpty() } | ||
| checkButton?.isEnabled = allFilled | ||
| } | ||
| }) | ||
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| flexboxLayout.addView(editText) | ||
| answerViews.add(editText) | ||
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| lastEnd = matcher.end() | ||
| } | ||
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| val textAfter = cleanText.substring(lastEnd) | ||
| if (textAfter.isNotEmpty()) { | ||
| val textView = TextView(context) | ||
| textView.text = textAfter | ||
| textView.textSize = 18f | ||
| textView.setTextColor(ContextCompat.getColor(context, R.color.testpress_table_text)) | ||
| flexboxLayout.addView(textView) | ||
| } | ||
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| container.addView(flexboxLayout) | ||
| } | ||
| } | ||
| } |
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The buildQuestionUI method is quite long and handles the UI creation for three different question types. This reduces its readability and maintainability. To improve the code structure, consider refactoring this into smaller, private methods, each responsible for building a specific question type (e.g., buildRadioQuestionUI, buildCheckboxQuestionUI, buildGapFillQuestionUI).
| answerViews.add(optionView) | ||
| } | ||
| container.addView(radioGroup) | ||
| answerViews.add(radioGroup) |
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The RadioGroup container is being added to answerViews. This list is intended to hold views representing individual answer options. While this doesn't cause a bug in the current implementation, it's semantically incorrect and could lead to unexpected behavior if the logic that iterates over answerViews changes. Please remove this line.
| PlayerMessage.Target target = new PlayerMessage.Target() { | ||
| public void handleMessage(int messageType, Object payload) { | ||
| int positionInSeconds = messageType; | ||
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| quizCallbackHandler.obtainMessage(positionInSeconds).sendToTarget(); | ||
| } | ||
| }; |
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The anonymous inner class for PlayerMessage.Target can be simplified to a lambda expression, which is more concise and improves readability.
PlayerMessage.Target target = (messageType, payload) -> {
int positionInSeconds = messageType;
quizCallbackHandler.obtainMessage(positionInSeconds).sendToTarget();
};
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