Initial commit

.gitignore

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+*.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

app/.gitignore

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+/build

app/build.gradle

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+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+    id 'kotlin-android-extensions'
+}
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion "30.0.2"
+
+    defaultConfig {
+        applicationId "com.developersbreach.simplesearchapp"
+        minSdkVersion 22
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation 'androidx.core:core-ktx:1.3.2'
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.2.1'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.developersbreach.simplesearchapp">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Base.AppTheme"
+        tools:ignore="AllowBackup">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".DetailActivity" />
+    </application>
+
+</manifest>

app/src/main/java/com/developersbreach/simplesearchapp/DetailActivity.kt

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+package com.developersbreach.simplesearchapp
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.widget.ImageView
+import android.widget.TextView
+
+class DetailActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_detail)
+
+        val sports: Sports? = intent.getParcelableExtra("DETAIL_SPORTS_DATA")
+
+        findViewById<TextView>(R.id.detail_title_text).text = sports?.title
+        findViewById<TextView>(R.id.detail_subtitle_text).text = sports?.originated
+        findViewById<TextView>(R.id.detail_about_text).text = sports?.about
+        sports?.icon?.let {
+            findViewById<ImageView>(R.id.detail_image_view).setImageResource(it)
+        }
+    }
+}

app/src/main/java/com/developersbreach/simplesearchapp/MainActivity.kt

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+package com.developersbreach.simplesearchapp
+
+import android.app.Activity
+import android.content.Intent
+import android.os.Bundle
+import android.speech.RecognizerIntent
+import android.view.View
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.widget.AppCompatEditText
+import androidx.core.widget.doOnTextChanged
+import androidx.recyclerview.widget.RecyclerView
+import java.util.*
+import kotlin.collections.ArrayList
+
+class MainActivity : AppCompatActivity(), SearchAdapter.SportsAdapterListener {
+
+    private lateinit var recyclerView: RecyclerView
+    private lateinit var searchAdapter: SearchAdapter
+    private lateinit var editText: AppCompatEditText
+    private lateinit var noSearchResultsFoundText: TextView
+    private lateinit var sportsList: List<Sports>
+    private lateinit var clearQueryImageView: ImageView
+    private lateinit var voiceSearchImageView: ImageView
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        recyclerView = findViewById(R.id.search_list)
+        editText = findViewById(R.id.search_edit_text)
+        noSearchResultsFoundText = findViewById(R.id.no_search_results_found_text)
+        clearQueryImageView = findViewById(R.id.clear_search_query)
+        voiceSearchImageView = findViewById(R.id.voice_search_query)
+
+        sportsList = sportsList(applicationContext)
+        attachAdapter(sportsList)
+
+        editText.doOnTextChanged { text, _, _, _ ->
+            val query = text.toString().toLowerCase(Locale.getDefault())
+            filterWithQuery(query)
+            toggleImageView(query)
+        }
+
+        voiceSearchImageView.setOnClickListener {
+            val intent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH).apply {
+                putExtra(
+                    RecognizerIntent.EXTRA_LANGUAGE_MODEL,
+                    RecognizerIntent.LANGUAGE_MODEL_FREE_FORM
+                )
+            }
+            startActivityForResult(intent, SPEECH_REQUEST_CODE)
+        }
+
+        clearQueryImageView.setOnClickListener {
+            editText.setText("")
+        }
+    }
+
+    private fun attachAdapter(list: List<Sports>) {
+        searchAdapter = SearchAdapter(list, this)
+        recyclerView.adapter = searchAdapter
+    }
+
+    private fun filterWithQuery(query: String) {
+        if (query.isNotEmpty()) {
+            val filteredList: List<Sports> = onFilterChanged(query)
+            attachAdapter(filteredList)
+            toggleRecyclerView(filteredList)
+        } else if (query.isEmpty()) {
+            attachAdapter(sportsList)
+        }
+    }
+
+    private fun onFilterChanged(filterQuery: String): List<Sports> {
+        val filteredList = ArrayList<Sports>()
+        for (currentSport in sportsList) {
+            if (currentSport.title.toLowerCase(Locale.getDefault()).contains(filterQuery)) {
+                filteredList.add(currentSport)
+            }
+        }
+        return filteredList
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        if (requestCode == SPEECH_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
+            val spokenText: String? =
+                data?.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS).let { results ->
+                    results?.get(0)
+                }
+            // Do something with spokenText
+            editText.setText(spokenText)
+        }
+        super.onActivityResult(requestCode, resultCode, data)
+    }
+
+    private fun toggleRecyclerView(sportsList: List<Sports>) {
+        if (sportsList.isEmpty()) {
+            recyclerView.visibility = View.INVISIBLE
+            noSearchResultsFoundText.visibility = View.VISIBLE
+        } else {
+            recyclerView.visibility = View.VISIBLE
+            noSearchResultsFoundText.visibility = View.INVISIBLE
+        }
+    }
+
+    private fun toggleImageView(query: String) {
+        if (query.isNotEmpty()) {
+            clearQueryImageView.visibility = View.VISIBLE
+            voiceSearchImageView.visibility = View.INVISIBLE
+        } else if (query.isEmpty()) {
+            clearQueryImageView.visibility = View.INVISIBLE
+            voiceSearchImageView.visibility = View.VISIBLE
+        }
+    }
+
+    override fun onSportSelected(sports: Sports?) {
+        val intent = Intent(applicationContext, DetailActivity::class.java)
+        intent.putExtra("DETAIL_SPORTS_DATA", sports)
+        startActivity(intent)
+    }
+
+    companion object {
+        const val SPEECH_REQUEST_CODE = 0
+    }
+}

app/src/main/java/com/developersbreach/simplesearchapp/SearchAdapter.kt

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+package com.developersbreach.simplesearchapp
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+
+class SearchAdapter(
+    private val sportsList: List<Sports>,
+    private val listener: SportsAdapterListener
+) : RecyclerView.Adapter<SearchAdapter.SearchViewHolder>() {
+
+    class SearchViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        val titleTextView: TextView = itemView.findViewById(R.id.search_title_text_view)
+        val iconImageView: ImageView = itemView.findViewById(R.id.search_icon_image_view)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): SearchViewHolder {
+        return SearchViewHolder(
+            LayoutInflater.from(parent.context).inflate(
+                R.layout.item_search, parent, false
+            )
+        )
+    }
+
+    override fun onBindViewHolder(holder: SearchViewHolder, position: Int) {
+        val sports: Sports = sportsList[position]
+        holder.titleTextView.text = sports.title
+        holder.iconImageView.setImageResource(sports.icon)
+
+        holder.itemView.setOnClickListener {
+            listener.onSportSelected(sports)
+        }
+    }
+
+    override fun getItemCount() = sportsList.size
+
+    interface SportsAdapterListener {
+        fun onSportSelected(sports: Sports?)
+    }
+}