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jusang3057
reviewed
Jun 25, 2025
| val selection = "${MediaStore.Audio.Media.IS_MUSIC} != 0" | ||
| val sortOrder = "${MediaStore.Audio.Media.TITLE} ASC" | ||
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| val cursor = contentResolver.query( |
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contentResolversms I/O작업이라 백그라운드 스레드를 사용하시면 좋습니다.
| private fun showPermissionDialog() { | ||
| AlertDialog.Builder(this) | ||
| .setTitle(R.string.permdialog_title) | ||
| .setMessage(R.string.permdialog_title) |
| val title = it.getString(titleIndex) ?: "제목없음" | ||
| val artist = it.getString(artistIndex) ?: "가수없음" | ||
| val time = it.getLong(timeIndex) | ||
| musicList.add(Triple(title, artist, time)) |
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음악 정보를 저장하는 데이터 클래스를 사용하면 가독성을 높일 수 있습니다!
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| package com.example.bcsd_android_2025_1 | |||
| import android.Manifest | |||
| android:layout_height="match_parent"> | ||
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| <androidx.recyclerview.widget.RecyclerView | ||
| android:id="@+id/recyclerView" |
kongwoojin
reviewed
Jun 26, 2025
| jvmTarget = "11" | ||
| } | ||
| buildFeatures { | ||
| compose = true |
Contributor
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본 커리큘럼에서는 compose를 사용하지 않습니다.
| import android.widget.TextView | ||
| import androidx.recyclerview.widget.RecyclerView | ||
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| class MusicAdapter(private val musicList: List<Triple<String, String, Long>>) : |
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Triple을 사용하면, 어떤 값이 무엇을 나타내는건지 알기 어렵습니다.
data class를 만들어주세요
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| override fun getItemCount() = musicList.size | ||
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| private fun settime(timeMs: Long): String { |
Contributor
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Long의 확장함수로 만드는게 좋아보입니다.
| android:text="@string/text_music_artist" | ||
| android:textSize="14sp"/> | ||
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| <TextView |
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artist와 같은 줄에 위치하게 해주세요
kkyoungchan
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