├── .gitignore ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── moczul │ │ └── diffutilsample │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── moczul │ │ │ └── diffutilsample │ │ │ ├── Actor.kt │ │ │ ├── ActorAdapter.kt │ │ │ ├── ActorDiffCallback.kt │ │ │ ├── ActorRepository.kt │ │ │ └── MainActivity.kt │ └── res │ │ ├── layout │ │ ├── activity_main.xml │ │ └── item_actor.xml │ │ ├── menu │ │ └── sort_menu.xml │ │ ├── mipmap-hdpi │ │ └── ic_launcher.png │ │ ├── mipmap-mdpi │ │ └── ic_launcher.png │ │ ├── mipmap-xhdpi │ │ └── ic_launcher.png │ │ ├── mipmap-xxhdpi │ │ └── ic_launcher.png │ │ ├── mipmap-xxxhdpi │ │ └── ic_launcher.png │ │ ├── values-w820dp │ │ └── dimens.xml │ │ └── values │ │ ├── colors.xml │ │ ├── dimens.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── moczul │ └── diffutilsample │ └── ExampleUnitTest.kt ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── raw └── diffutil-sample-320.gif └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the ART/Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | out/ 15 | 16 | # Gradle files 17 | .gradle/ 18 | build/ 19 | 20 | # Local configuration file (sdk path, etc) 21 | local.properties 22 | 23 | # Proguard folder generated by Eclipse 24 | proguard/ 25 | 26 | # Log Files 27 | *.log 28 | 29 | # Android Studio Navigation editor temp files 30 | .navigation/ 31 | 32 | # Android Studio captures folder 33 | captures/ 34 | 35 | # Intellij 36 | *.iml 37 | .idea 38 | 39 | # Keystore files 40 | *.jks 41 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # DiffUtil Android Sample - Kotlin 2 | Example of usage [DiffUtil](https://developer.android.com/reference/android/support/v7/util/DiffUtil.html) utility class added originally in Support Library 24.2.0. 3 | 4 | ## Demo 5 | ![Demo](https://github.com/mrmike/DiffUtil-sample/blob/master/raw/diffutil-sample-320.gif?raw=true) 6 | 7 | ## Implementation 8 | [*calculateDiff*](https://developer.android.com/reference/android/support/v7/util/DiffUtil.html#calculateDiff(android.support.v7.util.DiffUtil.Callback)) method from DiffUtill class requires [DiffUtil.Callback](https://developer.android.com/reference/android/support/v7/util/DiffUtil.Callback.html) object as parameter. 9 | 10 | ### DiffUtil callback - [ActorDiffCallback.kt](https://github.com/mrmike/DiffUtil-sample/blob/master/app/src/main/java/com/moczul/diffutilsample/ActorDiffCallback.kt) 11 | 12 | Implements 4 methods: 13 | * **getOldListSize** - returns size of the old list 14 | * **getNewListSize** - returns size of the new list 15 | * **areItemsTheSame** - returns true if two items are the same, e.g. have the same ids 16 | * **areContentsTheSame** - returns true if displayed content was not changed. In our case we only display actor's name so we're detecing name's change. 17 | 18 | ### Applying diff result - [ActorAdapter.swap()](https://github.com/mrmike/DiffUtil-sample/blob/master/app/src/main/java/com/moczul/diffutilsample/ActorAdapter.kt#L31) 19 | 20 | DiffResult can be applied to adapter by calling **`diffResult.dispatchUpdatesTo(adapter)`**. 21 | 22 | ``` 23 | fun swap(actors: List) { 24 | val diffCallback = ActorDiffCallback(this.actors, actors) 25 | val diffResult = DiffUtil.calculateDiff(diffCallback) 26 | 27 | this.actors.clear() 28 | this.actors.addAll(actors) 29 | diffResult.dispatchUpdatesTo(this) 30 | } 31 | ``` 32 | 33 | ## Resources 34 | * [DiffUtil @ developer.android.com](https://developer.android.com/reference/android/support/v7/util/DiffUtil.html) 35 | * ["DiffUtil is a must!" @ Medium](https://medium.com/@nullthemall/diffutil-is-a-must-797502bc1149#.sejum95wh) 36 | * ["Diffing Larger Changes" @ Codepath](http://guides.codepath.com/android/using-the-recyclerview#diffing-larger-changes) 37 | 38 | ## License 39 | 40 | Copyright 2016 Michał Moczulski 41 | 42 | Licensed under the Apache License, Version 2.0 (the "License"); 43 | you may not use this file except in compliance with the License. 44 | You may obtain a copy of the License at 45 | 46 | http://www.apache.org/licenses/LICENSE-2.0 47 | 48 | Unless required by applicable law or agreed to in writing, software 49 | distributed under the License is distributed on an "AS IS" BASIS, 50 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 51 | See the License for the specific language governing permissions and 52 | limitations under the License. 53 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | apply plugin: 'kotlin-android' 3 | 4 | android { 5 | compileSdkVersion 28 6 | buildToolsVersion '28.0.2' 7 | defaultConfig { 8 | applicationId "com.moczul.diffutilsample" 9 | minSdkVersion 16 10 | targetSdkVersion 28 11 | versionCode 1 12 | versionName "1.0" 13 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 14 | } 15 | buildTypes { 16 | release { 17 | minifyEnabled false 18 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 19 | } 20 | } 21 | } 22 | 23 | dependencies { 24 | implementation fileTree(dir: 'libs', include: ['*.jar']) 25 | 26 | implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" 27 | implementation 'com.android.support:appcompat-v7:28.0.0' 28 | implementation 'com.android.support:recyclerview-v7:28.0.0' 29 | 30 | androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', { 31 | exclude group: 'com.android.support', module: 'support-annotations' 32 | }) 33 | 34 | testImplementation 'junit:junit:4.12' 35 | } 36 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /Users/moczul/Development/android-sdk-macosx/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/moczul/diffutilsample/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.moczul.diffutilsample; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumentation test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() throws Exception { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("com.moczul.diffutilsample", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | -------------------------------------------------------------------------------- /app/src/main/java/com/moczul/diffutilsample/Actor.kt: -------------------------------------------------------------------------------- 1 | package com.moczul.diffutilsample 2 | 3 | data class Actor(val id: Int, val name: String, val rating: Int, val yearOfBirth: Int) -------------------------------------------------------------------------------- /app/src/main/java/com/moczul/diffutilsample/ActorAdapter.kt: -------------------------------------------------------------------------------- 1 | package com.moczul.diffutilsample 2 | 3 | import android.support.v7.util.DiffUtil 4 | import android.support.v7.widget.RecyclerView 5 | import android.view.LayoutInflater 6 | import android.view.View 7 | import android.view.ViewGroup 8 | import android.widget.TextView 9 | 10 | class ActorAdapter(initActorsList: List) : RecyclerView.Adapter() { 11 | 12 | private val actors = mutableListOf() 13 | 14 | init { 15 | actors.addAll(initActorsList) 16 | } 17 | 18 | override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder { 19 | val inflater = LayoutInflater.from(parent.context) 20 | val view = inflater.inflate(R.layout.item_actor, parent, false) 21 | return ViewHolder(view) 22 | } 23 | 24 | override fun getItemCount() = actors.size 25 | 26 | override fun onBindViewHolder(holder: ViewHolder, position: Int) { 27 | holder.bind(actor = actors[position]) 28 | } 29 | 30 | fun swap(actors: List) { 31 | val diffCallback = ActorDiffCallback(this.actors, actors) 32 | val diffResult = DiffUtil.calculateDiff(diffCallback) 33 | 34 | this.actors.clear() 35 | this.actors.addAll(actors) 36 | diffResult.dispatchUpdatesTo(this) 37 | } 38 | 39 | class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) { 40 | 41 | private val name: TextView = itemView.findViewById(R.id.actor_name) 42 | 43 | fun bind(actor: Actor) { 44 | name.text = actor.name 45 | } 46 | 47 | } 48 | } -------------------------------------------------------------------------------- /app/src/main/java/com/moczul/diffutilsample/ActorDiffCallback.kt: -------------------------------------------------------------------------------- 1 | package com.moczul.diffutilsample 2 | 3 | import android.support.v7.util.DiffUtil 4 | 5 | class ActorDiffCallback( 6 | private val oldList: List, 7 | private val newList: List 8 | ) : DiffUtil.Callback() { 9 | 10 | override fun getOldListSize() = oldList.size 11 | 12 | override fun getNewListSize() = newList.size 13 | 14 | override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean { 15 | return oldList[oldItemPosition].id == newList[newItemPosition].id 16 | } 17 | 18 | override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean { 19 | return oldList[oldItemPosition].name == newList[newItemPosition].name 20 | } 21 | 22 | } -------------------------------------------------------------------------------- /app/src/main/java/com/moczul/diffutilsample/ActorRepository.kt: -------------------------------------------------------------------------------- 1 | package com.moczul.diffutilsample 2 | 3 | class ActorRepository { 4 | 5 | private val actors = listOf( 6 | Actor(1, "Jack Nicholson", 10, 1937), 7 | Actor(2, "Marlon Brando", 9, 1924), 8 | Actor(3, "Robert De Niro", 8, 1943), 9 | Actor(4, "Al Pacino", 7, 1940), 10 | Actor(5, "Daniel Day-Lewis", 6, 1957), 11 | Actor(6, "Dustin Hoffman", 5, 1937), 12 | Actor(7, "Tom Hanks", 4, 1956), 13 | Actor(8, "Anthony Hopkins", 3, 1937), 14 | Actor(9, "Paul Newman", 2, 1925), 15 | Actor(10, "Denzel Washington", 1, 1954) 16 | ) 17 | 18 | val actorsSortedByRating: List 19 | get() = actors.sortedByDescending { it.rating } 20 | 21 | val actorsSortedByName: List 22 | get() = actors.sortedBy { it.name } 23 | 24 | val actorsSortedByYearOfBirth: List 25 | get() = actors.sortedBy { it.yearOfBirth } 26 | 27 | } -------------------------------------------------------------------------------- /app/src/main/java/com/moczul/diffutilsample/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package com.moczul.diffutilsample 2 | 3 | import android.os.Bundle 4 | import android.support.v7.app.AppCompatActivity 5 | import android.support.v7.widget.LinearLayoutManager 6 | import android.support.v7.widget.RecyclerView 7 | import android.view.Menu 8 | import android.view.MenuItem 9 | 10 | class MainActivity : AppCompatActivity() { 11 | 12 | private val repository = ActorRepository() 13 | private val actorAdapter = ActorAdapter(repository.actorsSortedByRating) 14 | 15 | override fun onCreate(savedInstanceState: Bundle?) { 16 | super.onCreate(savedInstanceState) 17 | setContentView(R.layout.activity_main) 18 | 19 | val recyclerView = findViewById(R.id.recycler_view) 20 | recyclerView.apply { 21 | layoutManager = LinearLayoutManager(this@MainActivity) 22 | adapter = actorAdapter 23 | } 24 | } 25 | 26 | override fun onCreateOptionsMenu(menu: Menu): Boolean { 27 | menuInflater.inflate(R.menu.sort_menu, menu) 28 | return super.onCreateOptionsMenu(menu) 29 | } 30 | 31 | override fun onOptionsItemSelected(item: MenuItem): Boolean { 32 | return when (item.itemId) { 33 | R.id.sort_by_name -> { 34 | actorAdapter.swap(repository.actorsSortedByName) 35 | true 36 | } 37 | R.id.sort_by_rating -> { 38 | actorAdapter.swap(repository.actorsSortedByRating) 39 | true 40 | } 41 | R.id.sort_by_birth -> { 42 | actorAdapter.swap(repository.actorsSortedByYearOfBirth) 43 | true 44 | } 45 | else -> super.onOptionsItemSelected(item) 46 | } 47 | } 48 | } -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | -------------------------------------------------------------------------------- /app/src/main/res/layout/item_actor.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | 12 | 13 | -------------------------------------------------------------------------------- /app/src/main/res/menu/sort_menu.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 7 | 8 | 11 | 12 | 15 | 16 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mrmike/DiffUtil-sample/5d2ca8efdae3be17ccd3490e46777428dda5cdf2/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mrmike/DiffUtil-sample/5d2ca8efdae3be17ccd3490e46777428dda5cdf2/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mrmike/DiffUtil-sample/5d2ca8efdae3be17ccd3490e46777428dda5cdf2/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mrmike/DiffUtil-sample/5d2ca8efdae3be17ccd3490e46777428dda5cdf2/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mrmike/DiffUtil-sample/5d2ca8efdae3be17ccd3490e46777428dda5cdf2/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/values-w820dp/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 64dp 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #3F51B5 4 | #303F9F 5 | #FF4081 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16dp 4 | 16dp 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | DiffUtilSample 3 | Sort by name 4 | Sort by rating 5 | Sort by year of birth 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /app/src/test/java/com/moczul/diffutilsample/ExampleUnitTest.kt: -------------------------------------------------------------------------------- 1 | package com.moczul.diffutilsample 2 | 3 | import org.junit.Test 4 | 5 | import org.junit.Assert.* 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * @see [Testing documentation](http://d.android.com/tools/testing) 11 | */ 12 | class ExampleUnitTest { 13 | @Test 14 | @Throws(Exception::class) 15 | fun addition_isCorrect() { 16 | assertEquals(4, (2 + 2).toLong()) 17 | } 18 | } -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | buildscript { 2 | ext.kotlin_version = '1.2.71' 3 | repositories { 4 | jcenter() 5 | google() 6 | } 7 | dependencies { 8 | classpath 'com.android.tools.build:gradle:3.2.0' 9 | classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" 10 | } 11 | } 12 | 13 | allprojects { 14 | repositories { 15 | jcenter() 16 | google() 17 | } 18 | } 19 | 20 | task clean(type: Delete) { 21 | delete rootProject.buildDir 22 | } 23 | 24 | task wrapper(type: Wrapper) { 25 | gradleVersion = '4.10.2' 26 | } -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Gradle settings configured through the IDE *will override* 5 | # any settings specified in this file. 6 | 7 | # For more details on how to configure your build environment visit 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html 9 | 10 | # Specifies the JVM arguments used for the daemon process. 11 | # The setting is particularly useful for tweaking memory settings. 12 | org.gradle.jvmargs=-Xmx1536m 13 | 14 | # When configured, Gradle will run in incubating parallel mode. 15 | # This option should only be used with decoupled projects. More details, visit 16 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 17 | # org.gradle.parallel=true 18 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mrmike/DiffUtil-sample/5d2ca8efdae3be17ccd3490e46777428dda5cdf2/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | zipStoreBase=GRADLE_USER_HOME 4 | zipStorePath=wrapper/dists 5 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-bin.zip 6 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /raw/diffutil-sample-320.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mrmike/DiffUtil-sample/5d2ca8efdae3be17ccd3490e46777428dda5cdf2/raw/diffutil-sample-320.gif -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app' 2 | --------------------------------------------------------------------------------