├── .gitignore ├── Jenkinsfile ├── LICENSE.md ├── README.md ├── app ├── build.gradle ├── detekt.yml ├── lint.xml ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── com │ │ └── stylingandroid │ │ └── viewpager2 │ │ ├── MainActivity.kt │ │ └── ui │ │ └── main │ │ ├── PageFragment.kt │ │ ├── PageViewModel.kt │ │ └── SectionsPagerAdapter.kt │ └── res │ ├── layout │ ├── activity_main.xml │ └── page_fragment.xml │ ├── mipmap-anydpi-v26 │ ├── ic_launcher.xml │ └── ic_launcher_round.xml │ ├── mipmap-hdpi │ ├── ic_launcher.png │ ├── ic_launcher_background.png │ ├── ic_launcher_foreground.png │ └── ic_launcher_round.png │ ├── mipmap-mdpi │ ├── ic_launcher.png │ ├── ic_launcher_background.png │ ├── ic_launcher_foreground.png │ └── ic_launcher_round.png │ ├── mipmap-xhdpi │ ├── ic_launcher.png │ ├── ic_launcher_background.png │ ├── ic_launcher_foreground.png │ └── ic_launcher_round.png │ ├── mipmap-xxhdpi │ ├── ic_launcher.png │ ├── ic_launcher_background.png │ ├── ic_launcher_foreground.png │ └── ic_launcher_round.png │ ├── mipmap-xxxhdpi │ ├── ic_launcher.png │ ├── ic_launcher_background.png │ ├── ic_launcher_foreground.png │ └── ic_launcher_round.png │ ├── values-w820dp │ └── dimens.xml │ └── values │ ├── colors.xml │ ├── dimens.xml │ ├── strings.xml │ └── styles.xml ├── build.gradle ├── buildSrc ├── build.gradle.kts └── src │ └── main │ └── kotlin │ └── Dependencies.kt ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | 15 | # Gradle files 16 | .gradle/ 17 | build/ 18 | 19 | # Local configuration file (sdk path, etc) 20 | local.properties 21 | 22 | # Proguard folder generated by Eclipse 23 | proguard/ 24 | 25 | # Log Files 26 | *.log 27 | 28 | # Android Studio Navigation editor temp files 29 | .navigation/ 30 | 31 | # Android Studio captures folder 32 | captures/ 33 | 34 | .idea/ 35 | *.iml 36 | -------------------------------------------------------------------------------- /Jenkinsfile: -------------------------------------------------------------------------------- 1 | node { 2 | stage('Checkout') { 3 | checkout scm 4 | } 5 | 6 | stage('Build') { 7 | sh "./gradlew clean assemble" 8 | } 9 | 10 | stage('Check') { 11 | sh "./gradlew detekt check ktlintCheck" 12 | } 13 | 14 | stage('Report') { 15 | scanForIssues tool: androidLintParser(pattern: '**/reports/**/lint-results.xml', reportEncoding: 'UTF-8') 16 | scanForIssues tool: detekt(pattern: '**/reports/**/detekt.xml', reportEncoding: 'UTF-8') 17 | scanForIssues tool: ktLint(pattern: '**/reports/**/ktlint*.xml', reportEncoding: 'UTF-8') 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /LICENSE.md: -------------------------------------------------------------------------------- 1 | 2 | Apache License 3 | Version 2.0, January 2004 4 | http://www.apache.org/licenses/ 5 | 6 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 7 | 8 | 1. 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-------------------------------------------------------------------------------- 1 | ViewPager2 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | import org.jlleitschuh.gradle.ktlint.reporter.ReporterType 2 | 3 | apply plugin: 'com.android.application' 4 | apply plugin: 'kotlin-android' 5 | apply plugin: 'kotlin-android-extensions' 6 | 7 | android { 8 | compileSdkVersion AndroidSdk.compile 9 | defaultConfig { 10 | applicationId "com.stylingandroid.viewpager2" 11 | minSdkVersion AndroidSdk.min 12 | targetSdkVersion AndroidSdk.target 13 | versionCode 1 14 | versionName "1.0" 15 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 16 | } 17 | buildTypes { 18 | release { 19 | minifyEnabled false 20 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 21 | } 22 | } 23 | compileOptions { 24 | targetCompatibility JavaVersion.VERSION_1_8 25 | } 26 | 27 | } 28 | 29 | dependencies { 30 | implementation Libraries.kotlinStdLib 31 | implementation Libraries.appCompat 32 | implementation Libraries.ktxCore 33 | implementation Libraries.material 34 | implementation Libraries.constraintLayout 35 | implementation Libraries.lifecycleExtensions 36 | implementation Libraries.lifecycleViewModelKtx 37 | implementation Libraries.viewpager2 38 | } 39 | 40 | detekt { 41 | version = "1.0.0-RC15" 42 | failFast = true 43 | config = files("$projectDir/detekt.yml") 44 | reports { 45 | xml { 46 | destination = file("$project.buildDir/reports/detekt/detekt.xml") 47 | } 48 | } 49 | filters = ".*test.*,.*/resources/.*,.*/tmp/.*" 50 | } 51 | 52 | ktlint { 53 | android = true 54 | version = "0.31.0" 55 | ignoreFailures = false 56 | reporters = [ReporterType.PLAIN_GROUP_BY_FILE, ReporterType.CHECKSTYLE] 57 | outputToConsole = true 58 | } 59 | -------------------------------------------------------------------------------- /app/detekt.yml: -------------------------------------------------------------------------------- 1 | ./gr autoCorrect: true 2 | 3 | build: 4 | maxIssues: 5 5 | weights: 6 | complexity: 2 7 | formatting: 0 8 | LongParameterList: 1 9 | comments: 0.5 10 | 11 | potential-bugs: 12 | active: true 13 | DuplicateCaseInWhenExpression: 14 | active: true 15 | EqualsWithHashCodeExist: 16 | active: true 17 | ExplicitGarbageCollectionCall: 18 | active: true 19 | LateinitUsage: 20 | active: false 21 | UnsafeCallOnNullableType: 22 | active: false 23 | UnsafeCast: 24 | active: false 25 | 26 | performance: 27 | active: true 28 | ForEachOnRange: 29 | active: true 30 | SpreadOperator: 31 | active: true 32 | 33 | exceptions: 34 | active: true 35 | 36 | empty-blocks: 37 | active: true 38 | 39 | complexity: 40 | active: true 41 | LongMethod: 42 | threshold: 30 43 | LongParameterList: 44 | threshold: 5 45 | LargeClass: 46 | threshold: 150 47 | ComplexMethod: 48 | threshold: 10 49 | TooManyFunctions: 50 | threshold: 10 51 | ComplexCondition: 52 | threshold: 3 53 | LabeledExpression: 54 | active: false 55 | 56 | code-smell: 57 | active: true 58 | FeatureEnvy: 59 | threshold: 0.5 60 | weight: 0.45 61 | base: 0.5 62 | 63 | formatting: 64 | active: true 65 | useTabs: true 66 | Indentation: 67 | active: false 68 | indentSize: 4 69 | ConsecutiveBlankLines: 70 | active: true 71 | autoCorrect: true 72 | MultipleSpaces: 73 | active: true 74 | autoCorrect: true 75 | SpacingAfterComma: 76 | active: true 77 | autoCorrect: true 78 | SpacingAfterKeyword: 79 | active: true 80 | autoCorrect: true 81 | SpacingAroundColon: 82 | active: true 83 | autoCorrect: true 84 | SpacingAroundCurlyBraces: 85 | active: true 86 | autoCorrect: true 87 | SpacingAroundOperator: 88 | active: true 89 | autoCorrect: true 90 | TrailingSpaces: 91 | active: true 92 | autoCorrect: true 93 | UnusedImports: 94 | active: true 95 | autoCorrect: true 96 | OptionalSemicolon: 97 | active: true 98 | autoCorrect: true 99 | OptionalUnit: 100 | active: true 101 | autoCorrect: true 102 | ExpressionBodySyntax: 103 | active: false 104 | autoCorrect: false 105 | ExpressionBodySyntaxLineBreaks: 106 | active: false 107 | autoCorrect: false 108 | OptionalReturnKeyword: 109 | active: true 110 | autoCorrect: false 111 | 112 | style: 113 | active: true 114 | WildcardImport: 115 | active: false 116 | MaxLineLength: 117 | active: true 118 | maxLineLength: 120 119 | excludePackageStatements: false 120 | excludeImportStatements: false 121 | NamingConventionViolation: 122 | active: true 123 | variablePattern: '^(_)?[a-z$][a-zA-Z$0-9]*$' 124 | constantPattern: '^([A-Z_]*|serialVersionUID)$' 125 | methodPattern: '^[a-z$][a-zA-Z$0-9]*$' 126 | classPattern: '[A-Z$][a-zA-Z$]*' 127 | enumEntryPattern: '^[A-Z$][a-zA-Z_$]*$' 128 | 129 | comments: 130 | active: true 131 | CommentOverPrivateMethod: 132 | active: true 133 | CommentOverPrivateProperty: 134 | active: true 135 | UndocumentedPublicClass: 136 | active: false 137 | UndocumentedPublicFunction: 138 | active: false 139 | 140 | # *experimental feature* 141 | # Migration rules can be defined in the same config file or a new one 142 | migration: 143 | active: true 144 | imports: 145 | # your.package.Class: new.package.or.Class 146 | # for example: 147 | # io.gitlab.arturbosch.detekt.api.Rule: io.gitlab.arturbosch.detekt.rule.Rule 148 | -------------------------------------------------------------------------------- /app/lint.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 13 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /app/src/main/java/com/stylingandroid/viewpager2/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package com.stylingandroid.viewpager2 2 | 3 | import android.os.Bundle 4 | import androidx.appcompat.app.AppCompatActivity 5 | import androidx.viewpager2.widget.ViewPager2 6 | import com.google.android.material.tabs.TabLayout 7 | import com.google.android.material.tabs.TabLayoutMediator 8 | import com.stylingandroid.viewpager2.ui.main.SectionsPagerAdapter 9 | 10 | class MainActivity : AppCompatActivity() { 11 | 12 | override fun onCreate(savedInstanceState: Bundle?) { 13 | super.onCreate(savedInstanceState) 14 | setContentView(R.layout.activity_main) 15 | val sectionsPagerAdapter = SectionsPagerAdapter(this) 16 | val viewPager = findViewById(R.id.view_pager).apply { 17 | adapter = sectionsPagerAdapter 18 | orientation = ViewPager2.ORIENTATION_HORIZONTAL 19 | } 20 | val tabs: TabLayout = findViewById(R.id.tabs) 21 | TabLayoutMediator(tabs, viewPager, true) { tab, position -> 22 | tab.text = sectionsPagerAdapter.getPageTitle(position) 23 | }.attach() 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /app/src/main/java/com/stylingandroid/viewpager2/ui/main/PageFragment.kt: -------------------------------------------------------------------------------- 1 | package com.stylingandroid.viewpager2.ui.main 2 | 3 | import android.os.Bundle 4 | import android.view.LayoutInflater 5 | import android.view.View 6 | import android.view.ViewGroup 7 | import android.widget.TextView 8 | import androidx.fragment.app.Fragment 9 | import androidx.lifecycle.Observer 10 | import androidx.lifecycle.ViewModelProviders 11 | import com.stylingandroid.viewpager2.R 12 | 13 | class PageFragment : Fragment() { 14 | 15 | companion object { 16 | 17 | private const val ARG_SECTION_NUMBER = "section_number" 18 | @JvmStatic 19 | fun newInstance(sectionNumber: Int): PageFragment { 20 | return PageFragment().apply { 21 | arguments = Bundle().apply { 22 | putInt(ARG_SECTION_NUMBER, sectionNumber) 23 | } 24 | } 25 | } 26 | } 27 | 28 | private lateinit var viewModel: PageViewModel 29 | 30 | override fun onCreate(savedInstanceState: Bundle?) { 31 | super.onCreate(savedInstanceState) 32 | viewModel = ViewModelProviders.of(this).get(PageViewModel::class.java).apply { 33 | setIndex(arguments?.getInt(ARG_SECTION_NUMBER) ?: 1) 34 | } 35 | } 36 | 37 | override fun onCreateView( 38 | inflater: LayoutInflater, 39 | container: ViewGroup?, 40 | savedInstanceState: Bundle? 41 | ): View? { 42 | val root = inflater.inflate(R.layout.page_fragment, container, false) 43 | val textView: TextView = root.findViewById(R.id.section_label) 44 | viewModel.text.observe(this, Observer { 45 | textView.text = it 46 | }) 47 | return root 48 | } 49 | 50 | override fun onActivityCreated(savedInstanceState: Bundle?) { 51 | super.onActivityCreated(savedInstanceState) 52 | viewModel = ViewModelProviders.of(this).get(PageViewModel::class.java).apply { 53 | setIndex(arguments?.getInt(ARG_SECTION_NUMBER) ?: 1) 54 | } 55 | } 56 | } 57 | -------------------------------------------------------------------------------- /app/src/main/java/com/stylingandroid/viewpager2/ui/main/PageViewModel.kt: -------------------------------------------------------------------------------- 1 | package com.stylingandroid.viewpager2.ui.main 2 | 3 | import androidx.lifecycle.LiveData 4 | import androidx.lifecycle.MutableLiveData 5 | import androidx.lifecycle.Transformations 6 | import androidx.lifecycle.ViewModel 7 | 8 | class PageViewModel : ViewModel() { 9 | 10 | private val _index = MutableLiveData() 11 | val text: LiveData = Transformations.map(_index) { 12 | "Hello world from tab: ${it + 1}" 13 | } 14 | 15 | fun setIndex(index: Int) { 16 | _index.value = index 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /app/src/main/java/com/stylingandroid/viewpager2/ui/main/SectionsPagerAdapter.kt: -------------------------------------------------------------------------------- 1 | package com.stylingandroid.viewpager2.ui.main 2 | 3 | import androidx.fragment.app.Fragment 4 | import androidx.fragment.app.FragmentActivity 5 | import androidx.viewpager2.adapter.FragmentStateAdapter 6 | import com.stylingandroid.viewpager2.R 7 | 8 | class SectionsPagerAdapter( 9 | private val activity: FragmentActivity 10 | ) : FragmentStateAdapter(activity) { 11 | 12 | override fun createFragment(position: Int): Fragment = 13 | PageFragment.newInstance(position) 14 | 15 | fun getPageTitle(position: Int): CharSequence = 16 | activity.resources.getString(TAB_TITLES[position]) 17 | 18 | override fun getItemCount(): Int = TAB_TITLES.size 19 | 20 | companion object { 21 | private val TAB_TITLES = arrayOf( 22 | R.string.tab_text_1, 23 | R.string.tab_text_2 24 | ) 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 13 | 14 | 23 | 24 | 29 | 30 | 31 | 36 | 37 | 38 | -------------------------------------------------------------------------------- /app/src/main/res/layout/page_fragment.xml: -------------------------------------------------------------------------------- 1 | 2 | 9 | 10 | 22 | 23 | 24 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/StylingAndroid/ViewPager2/574e005e496c82ca361d51397f679427ca2b1bb5/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher_background.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/StylingAndroid/ViewPager2/574e005e496c82ca361d51397f679427ca2b1bb5/app/src/main/res/mipmap-hdpi/ic_launcher_background.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png: 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/app/src/main/res/values-w820dp/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 64dp 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #1E9618 4 | #4EE147 5 | #156912 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16dp 4 | 16dp 5 | 16dp 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | ViewPager2 3 | Tab 1 4 | Tab 2 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 15 | 16 |