혀가 길지 않은 개발자

build.gradle (Module: app) dependencies { implementation 'androidx.viewpager2:viewpager2:1.0.0' } activity_main.xml viewpager_item.xml MyRecyclerViewAdapter.java package com.jwsoft.javaproject; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; import androidx.annotation.NonNull; import andr..

build.gradle (Module: app) dependencies { implementation 'androidx.viewpager2:viewpager2:1.0.0' } viewpager_fragment.xml ViewPagerFragment.java package com.jwsoft.javaproject; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; import androidx.annotation.NonNull; import androidx.annotation.Nullable..

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 MyRecyclerView.java package com.jwsoft.javaproject; import android.content.Context; import ..

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.java package com.jwsoft.javaproject; import androidx.appcompat.app.AppCompatActivity; import android.graphics.Color; import android.os.Bundle; import android.widget.FrameLayout; import com.google.android.material.tabs.TabLa..

activity_main.xml MainActivity.java package com.jwsoft.javaproject; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.LinearLayout; public class MainActivity extends AppCompatActivity implements View.OnClickListener { private LinearLayout linearRed; private LinearLayout linearGreen; private LinearLayout linearBlue; @Overrid..