[김예란_Android] 4주차 과제 제출

app/build.gradle.kts

@@ -45,4 +45,6 @@ dependencies {
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
+    val fragment_version = "1.8.9"
+    implementation("androidx.fragment:fragment-ktx:$fragment_version")
 }

app/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
+    <uses-permission android:name="android.permission.READ_MEDIA_AUDIO"/>
 
     <application
         android:allowBackup="true"
@@ -14,12 +15,13 @@
         tools:targetApi="31">
         <activity
             android:name=".MainActivity"
-            android:exported="true" >
+            android:exported="true"
+            tools:ignore="MissingClass">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
     </application>
 
-</manifest>
+</manifest>

app/src/main/java/com/example/android_25_2/MainActivity.kt

@@ -1,20 +1,81 @@
 package com.example.android_25_2
 
+import android.Manifest
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.net.Uri
+import android.os.Build
 import android.os.Bundle
-import androidx.activity.enableEdgeToEdge
+import android.os.WorkDuration
+import android.provider.MediaStore
+import android.provider.MediaStore.Audio.Artists
+import android.provider.Settings
 import androidx.appcompat.app.AppCompatActivity
+import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.core.app.ActivityCompat
+import androidx.core.content.ContextCompat
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 
 class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        enableEdgeToEdge()
         setContentView(R.layout.activity_main)
         ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
             val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
             insets
         }
+        permissionCheck()
+
+        val musicList = mutableListOf<MusicItem>()
+
+        val projection = arrayOf(
+            MediaStore.Audio.Media.DISPLAY_NAME,
+            MediaStore.Audio.Media.DURATION,
+            MediaStore.Audio.Media.ARTIST
+        )
+
+        applicationContext.contentResolver.query(
+            MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
+            projection,
+            "",
+            arrayOf(),
+            ""
+        )?.use { cursor ->
+            val displayNameColumn = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DISPLAY_NAME)
+            val durationColumn = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DURATION)
+            val artistsColumn = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ARTIST)
+            while (cursor.moveToNext()){
+                val displayName = cursor.getString(displayNameColumn)
+                val duration = cursor.getInt(durationColumn)
+                val artists = cursor.getString(artistsColumn)
+            }
+        }
+
+        val recyclerView = findViewById<RecyclerView>(R.id.recyclerView)
+        val musicAdapter = MusicAdapter(musicList)
+        recyclerView.layoutManager = LinearLayoutManager(this)
+        recyclerView.adapter = musicAdapter
+    }
+
+    private fun permissionCheck() {
+        val permission = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            Manifest.permission.READ_MEDIA_AUDIO
+        } else {
+            Manifest.permission.READ_EXTERNAL_STORAGE
+        }
+        if (ContextCompat.checkSelfPermission(this, permission)
+            != PackageManager.PERMISSION_GRANTED) {
+            ActivityCompat.requestPermissions(
+                this, arrayOf(permission), 1000
+            )
+            if(!ActivityCompat.shouldShowRequestPermissionRationale(this, permission)) {
+                val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS).setData(Uri.parse("package:${packageName}"))
+                startActivity(intent)
+            }
+        }
     }
-}
+}

app/src/main/java/com/example/android_25_2/MusicAdapter.kt

@@ -0,0 +1,31 @@
+package com.example.android_25_2
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+
+class MusicAdapter(private val musicList: List<MusicItem>): RecyclerView.Adapter<ViewHolder>(){
+
+    class MusicViewHolder(view: View) : RecyclerView.ViewHolder(view){
+        val displayName: TextView = itemView.findViewById(R.id.text_display_name)
+        val artists: TextView = itemView.findViewById(R.id.text_artist)
+        val duration: TextView = itemView.findViewById(R.id.text_duration)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val view = LayoutInflater.from(parent.context)
+            .inflate(R.layout.item, parent, false)
+
+        return MusicViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        val music = musicList[position]
+        holder.itemView
+    }
+
+    override fun getItemCount() = musicList.size
+}

app/src/main/java/com/example/android_25_2/MusicItem.kt

@@ -0,0 +1,7 @@
+package com.example.android_25_2
+
+data class MusicItem (
+    val displayName: String,
+    val duration: Int,
+    val artist: String
+)

app/src/main/res/layout/activity_main.xml

@@ -7,4 +7,27 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
+
+    <androidx.appcompat.widget.Toolbar
+        android:id="@+id/toolbar"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:title="@string/app_name"
+        app:titleTextColor="@color/white"
+        android:layout_width="0dp"
+        android:layout_height="?attr/actionBarSize"
+        android:background="@color/purple"/>
+
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recyclerView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_constraintTop_toBottomOf="@+id/toolbar"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
+
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/item.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="@color/gray"
+    android:id="@+id/root_view"
+    android:padding="16dp">
+
+    <TextView
+        android:id="@+id/text_display_name"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textSize="20sp"
+        android:textColor="@color/black"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/text_artist"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textSize="15sp"
+        android:textColor="@color/black"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/text_display_name"
+        android:layout_marginTop="7dp"/>
+
+    <TextView
+        android:id="@+id/text_duration"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textSize="15sp"
+        android:textColor="@color/black"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values-night/themes.xml

@@ -2,12 +2,12 @@
     <!-- Base application theme. -->
     <style name="Theme.Android_252" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_200</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorPrimary">@color/purple</item>
+        <item name="colorPrimaryVariant">@color/purple</item>
         <item name="colorOnPrimary">@color/black</item>
         <!-- Secondary brand color. -->
-        <item name="colorSecondary">@color/teal_200</item>
-        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorSecondary">@color/gray</item>
+        <item name="colorSecondaryVariant">@color/gray</item>
         <item name="colorOnSecondary">@color/black</item>
         <!-- Status bar color. -->
         <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>

app/src/main/res/values/colors.xml

@@ -1,10 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="purple_200">#FFBB86FC</color>
-    <color name="purple_500">#FF6200EE</color>
-    <color name="purple_700">#FF3700B3</color>
-    <color name="teal_200">#FF03DAC5</color>
-    <color name="teal_700">#FF018786</color>
+    <color name="purple">#FF6200EE</color>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
+    <color name="gray">#F1F3F5</color>
 </resources>

app/src/main/res/values/strings.xml

@@ -1,3 +1,4 @@
 <resources>
     <string name="app_name">Android_25-2</string>
+    <string name="dialog_title">Delet</string>
 </resources>

app/src/main/res/values/themes.xml

@@ -2,12 +2,12 @@
     <!-- Base application theme. -->
     <style name="Theme.Android_252" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_500</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorPrimary">@color/purple</item>
+        <item name="colorPrimaryVariant">@color/purple</item>
         <item name="colorOnPrimary">@color/white</item>
         <!-- Secondary brand color. -->
-        <item name="colorSecondary">@color/teal_200</item>
-        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorSecondary">@color/gray</item>
+        <item name="colorSecondaryVariant">@color/gray</item>
         <item name="colorOnSecondary">@color/black</item>
         <!-- Status bar color. -->
         <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>

gradle/libs.versions.toml

@@ -9,6 +9,7 @@ appcompat = "1.7.1"
 material = "1.12.0"
 activity = "1.11.0"
 constraintlayout = "2.2.1"
+fragment_version = "1.8.9"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }