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/README.md:
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1 | # PaginationRecyclerView
2 |
3 | This library based on RecyclerView, and has a purpose easy work with lazy loading (pagination) data.
4 |
5 | You can use this library with our other library for work with Network API: https://github.com/JDroidCoder/apiservice
6 |
7 | Install:
8 |
9 | - Add jitpack repository in gradle(project level)
10 |
11 | allprojects {
12 | repositories {
13 | ...
14 | maven { url 'https://jitpack.io' }
15 | }
16 | }
17 |
18 |
19 | Add dependency in gradle(app level)
20 |
21 | dependencies {
22 | implementation 'com.github.JDroidCoder:PaginationRecyclerView:v1.0.0'
23 | }
24 |
25 |
26 | enjoy ;)
27 |
28 |
29 | Initialize library:
30 |
31 | Init in the xml
32 |
33 |
37 |
38 | Add OnPageChangeListener
39 |
40 | paginationRecyclerView?.setOnPageChangeListener(object : OnPageChangeListener {
41 | override fun onPageChange(page: Int) {
42 | // Here you will receive next page
43 | }
44 | })
45 |
46 |
47 | Code example:
48 | Xml (activity_main):
49 |
50 |
55 |
56 |
61 |
62 | Activity class:
63 |
64 | class MainActivity : AppCompatActivity() {
65 |
66 | override fun onCreate(savedInstanceState: Bundle?) {
67 | super.onCreate(savedInstanceState)
68 | setContentView(R.layout.activity_main)
69 | val adapter = RecyclerViewAdapter(generateList(1))
70 | paginationRecyclerView.adapter =adapter
71 | paginationRecyclerView?.layoutManager = LinearLayoutManager(this)
72 | paginationRecyclerView?.setOnPageChangeListener(object : OnPageChangeListener {
73 | override fun onPageChange(page: Int) {
74 | adapter.addItems(generateList(page))
75 | }
76 | })
77 | }
78 |
79 | private fun generateList(page: Int): ArrayList {
80 | val arrayList = ArrayList()
81 | for (i in 0..10) {
82 | arrayList.add("Item $i page $page")
83 | }
84 | return arrayList
85 | }
86 | }
87 |
88 | item_style.xml:
89 |
90 |
96 |
97 | RecyclerViewAdapter:
98 |
99 | class RecyclerViewAdapter(private val items: ArrayList) : RecyclerView.Adapter() {
100 |
101 | override fun onCreateViewHolder(parent: ViewGroup, p1: Int): ViewHolder {
102 | return ViewHolder(LayoutInflater.from(parent?.context).inflate(R.layout.item_style, parent, false))
103 | }
104 |
105 | override fun onBindViewHolder(holder: ViewHolder, position: Int) {
106 | holder.itemTextView.text = items?.get(position)
107 | }
108 |
109 | override fun getItemCount(): Int {
110 | return items.size
111 | }
112 |
113 | fun addItems(items: ArrayList){
114 | this.items.addAll(items)
115 | notifyDataSetChanged()
116 | }
117 | }
118 |
119 | class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
120 | val itemTextView: TextView = view.itemTextView
121 | }
122 |
123 |
124 | If you have any question ask us here or write to email: jdroidcoder@gmail.com
125 |
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/app/.gitignore:
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1 | /build
2 |
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/app/build.gradle:
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1 | apply plugin: 'com.android.application'
2 |
3 | apply plugin: 'kotlin-android'
4 |
5 | apply plugin: 'kotlin-android-extensions'
6 |
7 | android {
8 | compileSdkVersion 28
9 | defaultConfig {
10 | applicationId "jdroidcoder.ua.paginationrecyclerview"
11 | minSdkVersion 21
12 | targetSdkVersion 28
13 | versionCode 1
14 | versionName "1.0"
15 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
16 | }
17 | buildTypes {
18 | release {
19 | minifyEnabled false
20 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
21 | }
22 | }
23 | }
24 |
25 | dependencies {
26 | implementation fileTree(include: ['*.jar'], dir: 'libs')
27 | implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
28 | implementation 'com.android.support:appcompat-v7:28.0.0'
29 | implementation 'com.android.support.constraint:constraint-layout:1.1.3'
30 | testImplementation 'junit:junit:4.12'
31 | androidTestImplementation 'com.android.support.test:runner:1.0.2'
32 | androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
33 | implementation project(':paginationrecyclerview')
34 | implementation 'com.android.support:design:28.0.0'
35 |
36 | }
37 |
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/app/proguard-rules.pro:
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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 |
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/app/src/androidTest/java/jdroidcoder/ua/paginationrecyclerview/ExampleInstrumentedTest.kt:
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1 | package jdroidcoder.ua.paginationrecyclerview
2 |
3 | import android.support.test.InstrumentationRegistry
4 | import android.support.test.runner.AndroidJUnit4
5 |
6 | import org.junit.Test
7 | import org.junit.runner.RunWith
8 |
9 | import org.junit.Assert.*
10 |
11 | /**
12 | * Instrumented test, which will execute on an Android device.
13 | *
14 | * See [testing documentation](http://d.android.com/tools/testing).
15 | */
16 | @RunWith(AndroidJUnit4::class)
17 | class ExampleInstrumentedTest {
18 | @Test
19 | fun useAppContext() {
20 | // Context of the app under test.
21 | val appContext = InstrumentationRegistry.getTargetContext()
22 | assertEquals("jdroidcoder.ua.paginationrecyclerview", appContext.packageName)
23 | }
24 | }
25 |
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/app/src/main/AndroidManifest.xml:
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/app/src/main/java/jdroidcoder/ua/paginationrecyclerview/MainActivity.kt:
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1 | package jdroidcoder.ua.paginationrecyclerview
2 |
3 | import android.support.v7.app.AppCompatActivity
4 | import android.os.Bundle
5 | import android.support.v7.widget.LinearLayoutManager
6 | import kotlinx.android.synthetic.main.activity_main.*
7 |
8 | class MainActivity : AppCompatActivity() {
9 |
10 | override fun onCreate(savedInstanceState: Bundle?) {
11 | super.onCreate(savedInstanceState)
12 | setContentView(R.layout.activity_main)
13 | val adapter = RecyclerViewAdapter(generateList(1))
14 | paginationRecyclerView.adapter =adapter
15 | paginationRecyclerView?.layoutManager = LinearLayoutManager(this)
16 | paginationRecyclerView?.setOnPageChangeListener(object : OnPageChangeListener {
17 | override fun onPageChange(page: Int) {
18 | println("page = $page")
19 | adapter.addItems(generateList(page))
20 | }
21 |
22 | })
23 | }
24 |
25 | private fun generateList(page: Int): ArrayList {
26 | val arrayList = ArrayList()
27 | for (i in 0..10) {
28 | arrayList.add("Item $i page $page")
29 | }
30 | return arrayList
31 | }
32 | }
33 |
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/app/src/main/java/jdroidcoder/ua/paginationrecyclerview/RecyclerViewAdapter.kt:
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1 | package jdroidcoder.ua.paginationrecyclerview
2 |
3 | import android.support.v7.widget.RecyclerView
4 | import android.view.LayoutInflater
5 | import android.view.View
6 | import android.view.ViewGroup
7 | import android.widget.TextView
8 | import kotlinx.android.synthetic.main.item_style.view.*
9 |
10 | class RecyclerViewAdapter(private val items: ArrayList) : RecyclerView.Adapter() {
11 |
12 | fun addItems(items: ArrayList){
13 | this.items.addAll(items)
14 | notifyDataSetChanged()
15 | }
16 |
17 | override fun onCreateViewHolder(parent: ViewGroup, p1: Int): ViewHolder {
18 | return ViewHolder(LayoutInflater.from(parent?.context).inflate(R.layout.item_style, parent, false))
19 | }
20 |
21 | override fun onBindViewHolder(holder: ViewHolder, position: Int) {
22 | holder.itemTextView.text = items?.get(position)
23 | }
24 |
25 | override fun getItemCount(): Int {
26 | return items.size
27 | }
28 |
29 | }
30 |
31 | class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
32 | val itemTextView: TextView = view.itemTextView
33 | }
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/app/src/main/res/drawable-v24/ic_launcher_foreground.xml:
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