├── app ├── .gitignore ├── src │ └── main │ │ ├── res │ │ ├── mipmap-hdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ ├── mipmap-mdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ ├── mipmap-xhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxxhdpi │ │ │ ├── ic_launcher.png │ │ │ └── ic_launcher_round.png │ │ ├── values │ │ │ ├── strings.xml │ │ │ ├── colors.xml │ │ │ └── styles.xml │ │ ├── mipmap-anydpi-v26 │ │ │ ├── ic_launcher.xml │ │ │ └── ic_launcher_round.xml │ │ ├── drawable-v24 │ │ │ └── ic_launcher_foreground.xml │ │ ├── layout │ │ │ ├── fragment_pager.xml │ │ │ └── activity_main.xml │ │ └── drawable │ │ │ └── ic_launcher_background.xml │ │ ├── java │ │ └── com │ │ │ └── rmyhal │ │ │ └── viewpager2diffutil │ │ │ ├── PagerItem.kt │ │ │ ├── PagerDiffUtil.kt │ │ │ ├── PagerFragment.kt │ │ │ ├── PagerAdapter.kt │ │ │ └── MainActivity.kt │ │ └── AndroidManifest.xml ├── proguard-rules.pro └── build.gradle ├── settings.gradle ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── .gitignore ├── gradle.properties ├── gradlew.bat └── gradlew /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app' 2 | rootProject.name = "ViewPager2 DiffUtil" -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/rmyhal/ViewPager2-DiffUtil/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | ViewPager2 DiffUtil 3 | Increment 4 | -------------------------------------------------------------------------------- /app/src/main/java/com/rmyhal/viewpager2diffutil/PagerItem.kt: -------------------------------------------------------------------------------- 1 | package com.rmyhal.viewpager2diffutil 2 | 3 | data class PagerItem(val id: Int, val title: String, val color: String, val value: Int) -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #6200EE 4 | #3700B3 5 | #03DAC5 6 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Sun Jul 26 11:18:23 EEST 2020 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip 7 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 11 | 12 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /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 -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.aar 4 | *.ap_ 5 | *.aab 6 | 7 | # Files for the ART/Dalvik VM 8 | *.dex 9 | 10 | # Java class files 11 | *.class 12 | 13 | # Generated files 14 | bin/ 15 | gen/ 16 | out/ 17 | 18 | # Gradle files 19 | .gradle/ 20 | build/ 21 | 22 | # Local configuration file (sdk path, etc) 23 | local.properties 24 | 25 | # Proguard folder generated by Eclipse 26 | proguard/ 27 | 28 | # Log Files 29 | *.log 30 | 31 | # Android Studio Navigation editor temp files 32 | .navigation/ 33 | 34 | # Android Studio captures folder 35 | captures/ 36 | 37 | # IntelliJ 38 | *.iml 39 | .idea/ 40 | 41 | # Version control 42 | vcs.xml 43 | 44 | # lint 45 | lint/intermediates/ 46 | lint/generated/ 47 | lint/outputs/ 48 | lint/tmp/ 49 | # lint/reports/ 50 | 51 | ### Android Patch ### 52 | gen-external-apklibs 53 | output.json 54 | -------------------------------------------------------------------------------- /app/src/main/java/com/rmyhal/viewpager2diffutil/PagerDiffUtil.kt: -------------------------------------------------------------------------------- 1 | package com.rmyhal.viewpager2diffutil 2 | 3 | import androidx.recyclerview.widget.DiffUtil 4 | 5 | class PagerDiffUtil(private val oldList: List, private val newList: List) : DiffUtil.Callback() { 6 | 7 | enum class PayloadKey { 8 | VALUE 9 | } 10 | 11 | override fun getOldListSize() = oldList.size 12 | 13 | override fun getNewListSize() = newList.size 14 | 15 | override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean { 16 | return oldList[oldItemPosition].id == newList[newItemPosition].id 17 | } 18 | 19 | override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean { 20 | return oldList[oldItemPosition].value == newList[newItemPosition].value 21 | } 22 | 23 | override fun getChangePayload(oldItemPosition: Int, newItemPosition: Int): Any? { 24 | return listOf(PayloadKey.VALUE) 25 | } 26 | } -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | # IDE (e.g. Android Studio) users: 3 | # Gradle settings configured through the IDE *will override* 4 | # any settings specified in this file. 5 | # For more details on how to configure your build environment visit 6 | # http://www.gradle.org/docs/current/userguide/build_environment.html 7 | # Specifies the JVM arguments used for the daemon process. 8 | # The setting is particularly useful for tweaking memory settings. 9 | org.gradle.jvmargs=-Xmx2048m 10 | # When configured, Gradle will run in incubating parallel mode. 11 | # This option should only be used with decoupled projects. More details, visit 12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 13 | # org.gradle.parallel=true 14 | # AndroidX package structure to make it clearer which packages are bundled with the 15 | # Android operating system, and which are packaged with your app"s APK 16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn 17 | android.useAndroidX=true 18 | # Automatically convert third-party libraries to use AndroidX 19 | android.enableJetifier=true 20 | # Kotlin code style for this project: "official" or "obsolete": 21 | kotlin.code.style=official -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | apply plugin: 'kotlin-android' 3 | apply plugin: 'kotlin-android-extensions' 4 | 5 | android { 6 | compileSdkVersion 29 7 | 8 | defaultConfig { 9 | applicationId "com.rmyhal.viewpager2diffutil" 10 | minSdkVersion 23 11 | targetSdkVersion 29 12 | versionCode 1 13 | versionName "1.0" 14 | 15 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 16 | } 17 | 18 | buildTypes { 19 | release { 20 | minifyEnabled false 21 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 22 | } 23 | } 24 | } 25 | 26 | dependencies { 27 | implementation fileTree(dir: "libs", include: ["*.jar"]) 28 | implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" 29 | 30 | implementation "androidx.viewpager2:viewpager2:1.0.0" 31 | implementation 'androidx.core:core-ktx:1.3.0' 32 | implementation 'androidx.appcompat:appcompat:1.1.0' 33 | implementation 'androidx.constraintlayout:constraintlayout:1.1.3' 34 | implementation 'com.google.android.material:material:1.1.0' 35 | 36 | testImplementation 'junit:junit:4.12' 37 | androidTestImplementation 'androidx.test.ext:junit:1.1.1' 38 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0' 39 | 40 | } -------------------------------------------------------------------------------- /app/src/main/java/com/rmyhal/viewpager2diffutil/PagerFragment.kt: -------------------------------------------------------------------------------- 1 | package com.rmyhal.viewpager2diffutil 2 | 3 | import android.graphics.Color 4 | import android.os.Bundle 5 | import android.view.View 6 | import androidx.fragment.app.Fragment 7 | import kotlinx.android.synthetic.main.fragment_pager.* 8 | 9 | class PagerFragment : Fragment(R.layout.fragment_pager) { 10 | 11 | override fun onViewCreated(view: View, savedInstanceState: Bundle?) { 12 | super.onViewCreated(view, savedInstanceState) 13 | txtTitle.text = requireArguments().getString(EXTRA_TITLE) 14 | view.setBackgroundColor(Color.parseColor(requireArguments().getString(EXTRA_COLOR))) 15 | setValue(requireArguments().getInt(EXTRA_VALUE)) 16 | } 17 | 18 | fun setValue(newValue: Int) { 19 | txtValue.text = newValue.toString() 20 | } 21 | 22 | companion object { 23 | 24 | private const val EXTRA_TITLE = "title" 25 | private const val EXTRA_COLOR = "color" 26 | private const val EXTRA_VALUE = "value" 27 | 28 | 29 | fun newInstance(item: PagerItem): PagerFragment { 30 | return PagerFragment().apply { 31 | arguments = Bundle(3).apply { 32 | putString(EXTRA_TITLE, item.title) 33 | putString(EXTRA_COLOR, item.color) 34 | putInt(EXTRA_VALUE, item.value) 35 | } 36 | } 37 | } 38 | } 39 | } -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 8 | 9 | 15 | 18 | 21 | 22 | 23 | 24 | 30 | -------------------------------------------------------------------------------- /app/src/main/res/layout/fragment_pager.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 22 | 23 | 34 | 35 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 9 | 10 | 20 | 21 | 31 | 32 | 40 | 41 | -------------------------------------------------------------------------------- /app/src/main/java/com/rmyhal/viewpager2diffutil/PagerAdapter.kt: -------------------------------------------------------------------------------- 1 | package com.rmyhal.viewpager2diffutil 2 | 3 | import androidx.fragment.app.Fragment 4 | import androidx.fragment.app.FragmentActivity 5 | import androidx.recyclerview.widget.DiffUtil 6 | import androidx.viewpager2.adapter.FragmentStateAdapter 7 | import androidx.viewpager2.adapter.FragmentViewHolder 8 | 9 | class PagerAdapter(private val activity: FragmentActivity) : FragmentStateAdapter(activity) { 10 | 11 | private val items: ArrayList = arrayListOf() 12 | 13 | override fun createFragment(position: Int): Fragment = 14 | PagerFragment.newInstance(items[position]) 15 | 16 | override fun getItemCount() = items.size 17 | 18 | override fun getItemId(position: Int): Long { 19 | return items[position].id.toLong() 20 | } 21 | 22 | override fun containsItem(itemId: Long): Boolean { 23 | return items.any { it.id.toLong() == itemId } 24 | } 25 | 26 | override fun onBindViewHolder( 27 | holder: FragmentViewHolder, 28 | position: Int, 29 | payloads: MutableList 30 | ) { 31 | if (payloads.isNotEmpty()) { 32 | val tag = "f" + holder.itemId 33 | val fragment = activity.supportFragmentManager.findFragmentByTag(tag) 34 | // safe check ,but fragment should not be null 35 | if (fragment != null) { 36 | (fragment as PagerFragment).setValue(items[position].value) 37 | } else { 38 | super.onBindViewHolder(holder, position, payloads) 39 | } 40 | } else { 41 | super.onBindViewHolder(holder, position, payloads) 42 | } 43 | } 44 | 45 | fun setItems(newItems: List) { 46 | val callback = PagerDiffUtil(items, newItems) 47 | val diff = DiffUtil.calculateDiff(callback) 48 | 49 | items.clear() 50 | items.addAll(newItems) 51 | 52 | diff.dispatchUpdatesTo(this) 53 | } 54 | } -------------------------------------------------------------------------------- /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 | -------------------------------------------------------------------------------- /app/src/main/java/com/rmyhal/viewpager2diffutil/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package com.rmyhal.viewpager2diffutil 2 | 3 | import android.os.Bundle 4 | import android.view.View 5 | import android.view.ViewGroup 6 | import android.widget.BaseAdapter 7 | import android.widget.TextView 8 | import androidx.appcompat.app.AppCompatActivity 9 | import kotlinx.android.synthetic.main.activity_main.* 10 | 11 | class MainActivity : AppCompatActivity(R.layout.activity_main) { 12 | 13 | private lateinit var pagerAdapter: PagerAdapter 14 | private var pagerItems: MutableList = mutableListOf() 15 | 16 | override fun onCreate(savedInstanceState: Bundle?) { 17 | super.onCreate(savedInstanceState) 18 | pagerAdapter = PagerAdapter(this) 19 | viewPager.adapter = pagerAdapter 20 | 21 | pagerItems = generatePagerItems() 22 | pagerAdapter.setItems(pagerItems) 23 | 24 | spinner.adapter = createSpinnerAdapter() 25 | 26 | btnIncrement.setOnClickListener { 27 | val oldItem = pagerItems[spinner.selectedItemPosition] 28 | val newItem = oldItem.copy(value = oldItem.value + 1) 29 | pagerItems[spinner.selectedItemPosition] = newItem 30 | pagerAdapter.setItems(pagerItems) 31 | } 32 | } 33 | 34 | override fun onDestroy() { 35 | viewPager.adapter = null 36 | super.onDestroy() 37 | } 38 | 39 | private fun createSpinnerAdapter(): BaseAdapter { 40 | return object : BaseAdapter() { 41 | override fun getCount() = ITEMS_COUNT 42 | 43 | override fun getItem(position: Int): Any { 44 | return pagerItems[position].title 45 | } 46 | 47 | override fun getItemId(position: Int): Long { 48 | return pagerItems[position].id.toLong() 49 | } 50 | 51 | override fun getView(position: Int, convertView: View?, parent: ViewGroup): View { 52 | return ((convertView as? TextView) ?: TextView(parent.context)).apply { 53 | text = pagerItems[position].title 54 | } 55 | } 56 | } 57 | } 58 | 59 | private fun generatePagerItems(): MutableList { 60 | return (1..ITEMS_COUNT).map { 61 | val color = if (it < colors.size) it else it % colors.size 62 | PagerItem(it, "Item $it", colors[color], 0) 63 | }.toMutableList() 64 | } 65 | 66 | companion object { 67 | 68 | private const val ITEMS_COUNT = 10 69 | private val colors = listOf( 70 | "#e53935", 71 | "#d81b60", 72 | "#8e24aa", 73 | "#2196f3", 74 | "#df78ef", 75 | "#d3b8ae" 76 | ) 77 | } 78 | } -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /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 | --------------------------------------------------------------------------------