RecyclerView 리사이클러뷰
Android 2023. 7. 11. 13:45 |반응형
안드로이드 앱 프로그래밍 with 코틀린 11-4 리사이클러뷰
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recyclerview"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
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activity_main.xml
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/item_root"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/item_data"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="TextView" />
</LinearLayout>
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item_main.xml
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package com.example.myapplication
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.TextView
import androidx.recyclerview.widget.DividerItemDecoration
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val data = mutableListOf<String>()
for(i in 1..10){
data.add("Item: $i")
}
val recyclerView: RecyclerView = findViewById(R.id.recyclerview)
recyclerView.layoutManager = LinearLayoutManager(this)
recyclerView.adapter = MyAdapter(data)
recyclerView.addItemDecoration(DividerItemDecoration(this, LinearLayoutManager.VERTICAL))
}
}
class MyViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
val textView: TextView = itemView.findViewById(R.id.item_data)
}
class MyAdapter(private val itemList: MutableList<String>): RecyclerView.Adapter<RecyclerView.ViewHolder>(){
override fun getItemCount(): Int {
return itemList.size
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
val view = LayoutInflater.from(parent.context).inflate(R.layout.item_main, parent, false)
return MyViewHolder(view)
}
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
(holder as MyViewHolder).textView.text = itemList[position]
(holder as MyViewHolder).textView.setOnClickListener {
Log.d("Sean", "Item clicked: $position")
}
}
}
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Main_Activity.kt
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