혀가 길지 않은 개발자

build.gradle (Module: app) dependencies { implementation 'androidx.viewpager2:viewpager2:1.0.0' } viewpager_fragment.xml MyFragment.kt package com.jwsoft.kotlinproject import android.os.Bundle import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import android.widget.TextView import androidx.fragment.app.Fragment class MyFragment(position: Int) : Fragment() {..

CoordinatorLayout + AppBarLayout + Toolbar + RecyclerView build.gradle (Module: app) dependencies { implementation 'com.google.android.material:material:1.1.0' } CoordinatorLayout, AppBarLayout 는 머티리얼 디자인이므로 의존성 추가 res/values/styles.xml DarkActionBar 에서 NoActionBar 로 변경 (기본 타이틀바 없어짐) recyclerview_item.xml MyAdapter.kt package com.jwsoft.kotlinproject import android.content.Context import android..

build.gradle (Module: app) dependencies { implementation 'androidx.viewpager2:viewpager2:1.0.0' } activity_main.xml viewpager_item.xml ViewPagerAdapter.kt package com.jwsoft.kotlinproject import android.content.Context import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import android.widget.TextView import androidx.recyclerview.widget.RecyclerView class Vie..

build.gradle (Modult: app) dependencies { implementation 'com.google.android.material:material:1.1.0' } TabLayout, TabItem 는 머티리얼 디자인이므로 의존성 추가 activity_main.xml MainActivity.kt package com.jwsoft.kotlinproject import android.graphics.Color import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.widget.FrameLayout import com.google.android.material.tabs.TabLayout ..

activity_main.xml MainActivity.kt package com.jwsoft.kotlinproject import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.view.View import android.widget.Button import android.widget.LinearLayout class MainActivity : AppCompatActivity(), View.OnClickListener { private lateinit var btnRed: Button private lateinit var btnGreen: Button private lateinit var btnBlue: ..