initialize app

Author: kmhmubin

QuizApp/.idea/gradle.xml

@@ -1,6 +1,7 @@
 plugins {
     id 'com.android.application'
     id 'kotlin-android'
+    id 'kotlin-android-extensions'
 }
 
 android {

QuizApp/app/build.gradle

@@ -1,17 +1,237 @@
 package com.example.quizapp
 
-import androidx.appcompat.app.AppCompatActivity
+import android.content.Intent
+import android.graphics.Color
+import android.graphics.Typeface
 import android.os.Bundle
 import android.util.Log
+import android.view.View
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.content.ContextCompat
 import com.example.quizapp.data.Constants
+import com.example.quizapp.data.Question
+import kotlinx.android.synthetic.main.*
 
 class QuizQuestionActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_quiz_question)
 
-        // get the question from constants
-        val questionList = Constants.getQuestions()
-        Log.i("Question size", "${questionList.size}")
+        private var mCurrentPosition: Int = 1 // Default and the first question position
+        private var mQuestionsList: ArrayList<Question>? = null
+
+        private var mSelectedOptionPosition: Int = 0
+        private var mCorrectAnswers: Int = 0
+
+        // TODO (STEP 3: Create a variable for getting the name from intent.)
+        // START
+        private var mUserName: String? = null
+        // END
+
+        /**
+         * This function is auto created by Android when the Activity Class is created.
+         */
+        override fun onCreate(savedInstanceState: Bundle?) {
+            //This call the parent constructor
+            super.onCreate(savedInstanceState)
+            // This is used to align the xml view to this class
+            setContentView(R.layout.activity_quiz_questions)
+
+            // TODO (STEP 4: Get the NAME from intent and assign it the variable.)
+            // START
+            mUserName = intent.getStringExtra(Constants.USER_NAME)
+            // END
+
+            mQuestionsList = Constants.getQuestions()
+
+            setQuestion()
+
+            tv_option_one.setOnClickListener(this)
+            tv_option_two.setOnClickListener(this)
+            tv_option_three.setOnClickListener(this)
+            tv_option_four.setOnClickListener(this)
+            btn_submit.setOnClickListener(this)
+        }
+
+        override fun onClick(v: View?) {
+
+            when (v?.id) {
+
+                R.id.tv_option_one -> {
+
+                    selectedOptionView(tv_option_one, 1)
+                }
+
+                R.id.tv_option_two -> {
+
+                    selectedOptionView(tv_option_two, 2)
+                }
+
+                R.id.tv_option_three -> {
+
+                    selectedOptionView(tv_option_three, 3)
+                }
+
+                R.id.tv_option_four -> {
+
+                    selectedOptionView(tv_option_four, 4)
+                }
+
+                R.id.btn_submit -> {
+
+                    if (mSelectedOptionPosition == 0) {
+
+                        mCurrentPosition++
+
+                        when {
+
+                            mCurrentPosition <= mQuestionsList!!.size -> {
+
+                                setQuestion()
+                            }
+                            else -> {
+
+                                // TODO (STEP 5: Now remove the toast message and launch the result screen which we have created and also pass the user name and score details to it.)
+                                // START
+                                val intent =
+                                    Intent(this@QuizQuestionsActivity, ResultActivity::class.java)
+                                intent.putExtra(Constants.USER_NAME, mUserName)
+                                intent.putExtra(Constants.CORRECT_ANSWERS, mCorrectAnswers)
+                                intent.putExtra(Constants.TOTAL_QUESTIONS, mQuestionsList!!.size)
+                                startActivity(intent)
+                                finish()
+                                // END
+                            }
+                        }
+                    } else {
+                        val question = mQuestionsList?.get(mCurrentPosition - 1)
+
+                        // This is to check if the answer is wrong
+                        if (question!!.correctAnswer != mSelectedOptionPosition) {
+                            answerView(mSelectedOptionPosition, R.drawable.wrong_option_border_bg)
+                        }
+                        else {
+                            mCorrectAnswers++
+                        }
+
+                        // This is for correct answer
+                        answerView(question.correctAnswer, R.drawable.correct_option_border_bg)
+
+                        if (mCurrentPosition == mQuestionsList!!.size) {
+                            btn_submit.text = "FINISH"
+                        } else {
+                            btn_submit.text = "GO TO NEXT QUESTION"
+                        }
+
+                        mSelectedOptionPosition = 0
+                    }
+                }
+            }
+        }
+
+        /**
+         * A function for setting the question to UI components.
+         */
+        private fun setQuestion() {
+
+            val question = mQuestionsList!!.get(mCurrentPosition - 1) // Getting the question from the list with the help of current position.
+
+            defaultOptionsView()
+
+            if (mCurrentPosition == mQuestionsList!!.size) {
+                btn_submit.text = "FINISH"
+            } else {
+                btn_submit.text = "SUBMIT"
+            }
+
+            progressBar.progress = mCurrentPosition
+            tv_progress.text = "$mCurrentPosition" + "/" + progressBar.getMax()
+
+            tv_question.text = question.question
+            iv_image.setImageResource(question.image)
+            tv_option_one.text = question.optionOne
+            tv_option_two.text = question.optionTwo
+            tv_option_three.text = question.optionThree
+            tv_option_four.text = question.optionFour
+        }
+
+        /**
+         * A function to set the view of selected option view.
+         */
+        private fun selectedOptionView(tv: TextView, selectedOptionNum: Int) {
+
+            defaultOptionsView()
+
+            mSelectedOptionPosition = selectedOptionNum
+
+            tv.setTextColor(
+                Color.parseColor("#363A43")
+            )
+            tv.setTypeface(tv.typeface, Typeface.BOLD)
+            tv.background = ContextCompat.getDrawable(
+                this@QuizQuestionsActivity,
+                R.drawable.selected_option_border_bg
+            )
+        }
+
+        /**
+         * A function to set default options view when the new question is loaded or when the answer is reselected.
+         */
+        private fun defaultOptionsView() {
+
+            val options = ArrayList<TextView>()
+            options.add(0, tv_option_one)
+            options.add(1, tv_option_two)
+            options.add(2, tv_option_three)
+            options.add(3, tv_option_four)
+
+            for (option in options) {
+                option.setTextColor(Color.parseColor("#7A8089"))
+                option.typeface = Typeface.DEFAULT
+                option.background = ContextCompat.getDrawable(
+                    this@QuizQuestionsActivity,
+                    R.drawable.default_option_border_bg
+                )
+            }
+        }
+
+        /**
+         * A function for answer view which is used to highlight the answer is wrong or right.
+         */
+        private fun answerView(answer: Int, drawableView: Int) {
+
+            when (answer) {
+
+                1 -> {
+                    tv_option_one.background = ContextCompat.getDrawable(
+                        this@QuizQuestionsActivity,
+                        drawableView
+                    )
+                }
+                2 -> {
+                    tv_option_two.background = ContextCompat.getDrawable(
+                        this@QuizQuestionsActivity,
+                        drawableView
+                    )
+                }
+                3 -> {
+                    tv_option_three.background = ContextCompat.getDrawable(
+                        this@QuizQuestionsActivity,
+                        drawableView
+                    )
+                }
+                4 -> {
+                    tv_option_four.background = ContextCompat.getDrawable(
+                        this@QuizQuestionsActivity,
+                        drawableView
+                    )
+                }
+            }
+        }
+
+
+
+
     }
 }

QuizApp/app/src/main/java/com/example/quizapp/QuizQuestionActivity.kt

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

Shrine/.gitignore

@@ -0,0 +1 @@
+/build