├── .codeclimate.yml ├── .gitignore ├── .travis.yml ├── LICENSE.md ├── README.md ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── library ├── .gitignore ├── build.gradle ├── gradle.properties ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── it │ │ └── enricocandino │ │ └── view │ │ ├── SynchronizedScrollView.java │ │ └── Synchronizer.java │ └── res │ └── values │ └── strings.xml ├── sample ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── it │ │ └── enricocandino │ │ └── ssv │ │ └── sample │ │ ├── MainActivity.java │ │ └── ScrollableFragment.java │ └── res │ ├── layout │ ├── activity_main.xml │ └── fragment_synchronized_scroll_view.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-v21 │ └── styles.xml │ ├── values-w820dp │ └── dimens.xml │ └── values │ ├── colors.xml │ ├── dimens.xml │ ├── strings.xml │ └── styles.xml └── settings.gradle /.codeclimate.yml: -------------------------------------------------------------------------------- 1 | engines: 2 | fixme: 3 | enabled: true 4 | ratings: 5 | paths: [] 6 | exclude_paths: [] 7 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the Dex VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Web Javadocs 12 | javadoc/ 13 | 14 | # Built native files 15 | *.o 16 | *.so 17 | 18 | # Generated files 19 | bin/ 20 | gen/ 21 | 22 | # Ignore gradle files 23 | .gradle/ 24 | build/ 25 | 26 | # Local configuration file (SDK path, etc.) 27 | local.properties 28 | 29 | # Proguard folder generated by Eclipse 30 | proguard/ 31 | 32 | # Eclipse Metadata 33 | .metadata/ 34 | 35 | # Mac OS X clutter 36 | *.DS_Store 37 | 38 | # Windows clutter 39 | Thumbs.db 40 | 41 | # Intellij IDEA 42 | *.iml 43 | .idea/ 44 | .navigation -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: android 2 | android: 3 | components: 4 | - build-tools-23.0.1 5 | - android-23 6 | 7 | - extra-android-m2repository 8 | 9 | - sys-img-armeabi-v7a-android-10 10 | - sys-img-x86-android-10 11 | 12 | before_script: 13 | # Create and start emulator 14 | - echo no | android create avd --force -n test -t android-10 --abi armeabi-v7a 15 | - emulator -avd test -no-skin -no-audio -no-window & 16 | - android-wait-for-emulator 17 | - adb shell input keyevent 82 & -------------------------------------------------------------------------------- /LICENSE.md: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2015 Enrico Candino 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # SynchronizedScrollView 2 | 3 | [![Build Status](https://travis-ci.org/enrichman/SynchronizedScrollView.svg?branch=master)](https://travis-ci.org/enrichman/SynchronizedScrollView) [![Maven Central](https://maven-badges.herokuapp.com/maven-central/it.enricocandino/synchronizedscrollview/badge.svg)](https://maven-badges.herokuapp.com/maven-central/it.enricocandino/synchronizedscrollview) [![Android Arsenal](https://img.shields.io/badge/Android%20Arsenal-SynchronizedScrollView-green.svg?style=true)](https://android-arsenal.com/details/1/3109) 4 | 5 | Custom ScrollView that keeps fragments in a ViewPager synchronized at the same height. 6 | 7 |
8 | 9 | 10 | 11 | Download 12 | -------- 13 | 14 | Add the dependency via Gradle: 15 | ```groovy 16 | compile 'it.enricocandino:synchronizedscrollview:1.0.1' 17 | ``` 18 | or Maven: 19 | ```xml 20 | 21 | it.enricocandino 22 | synchronizedscrollview 23 | 1.0.1 24 | 25 | ``` 26 | 27 | Examples 28 | -------- 29 | 30 | Just use the SynchronizedScrollView as a normal ScrollView: 31 | 32 | ```xml 33 | 38 | 39 | 44 | 45 | 46 | ``` 47 | 48 | Check the sample for a working app! 49 | 50 | Apps 51 | -------- 52 | 53 | Let me know if you used the library in your project. 54 | I will be happy to list it here! 55 | 56 | Developed By 57 | -------- 58 | 59 | Enrico Candino - www.enricocandino.it 60 | 61 | 62 | Follow me on Twitter 64 | 65 | 66 | Follow me on Google+ 68 | 69 | 70 | Follow me on LinkedIn 72 | 73 | 74 | 75 | License 76 | -------- 77 | 78 | The MIT License (MIT) 79 | 80 | Copyright (c) 2015 Enrico Candino 81 | 82 | Permission is hereby granted, free of charge, to any person obtaining a copy 83 | of this software and associated documentation files (the "Software"), to deal 84 | in the Software without restriction, including without limitation the rights 85 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 86 | copies of the Software, and to permit persons to whom the Software is 87 | furnished to do so, subject to the following conditions: 88 | 89 | The above copyright notice and this permission notice shall be included in all 90 | copies or substantial portions of the Software. 91 | 92 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 93 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 94 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 95 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 96 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 97 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 98 | SOFTWARE. 99 | 100 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | repositories { 5 | jcenter() 6 | } 7 | dependencies { 8 | classpath 'com.android.tools.build:gradle:1.5.0' 9 | 10 | // NOTE: Do not place your application dependencies here; they belong 11 | // in the individual module build.gradle files 12 | } 13 | } 14 | 15 | allprojects { 16 | repositories { 17 | jcenter() 18 | } 19 | } -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Settings specified in this file will override any Gradle settings 5 | # configured through the IDE. 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 | # Default value: -Xmx10248m -XX:MaxPermSize=256m 13 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 14 | 15 | # When configured, Gradle will run in incubating parallel mode. 16 | # This option should only be used with decoupled projects. More details, visit 17 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 18 | # org.gradle.parallel=true 19 | 20 | VERSION_NAME=1.0.1 21 | VERSION_CODE=2 22 | GROUP=it.enricocandino 23 | 24 | ANDROID_BUILD_MIN_SDK_VERSION=10 25 | ANDROID_BUILD_TARGET_SDK_VERSION=23 26 | ANDROID_BUILD_SDK_VERSION=23 27 | ANDROID_BUILD_TOOLS_VERSION=23.0.1 28 | 29 | POM_DESCRIPTION=Custom ScrollView that keeps fragments in a ViewPager synchronized at the same height 30 | POM_URL=https://github.com/enrichman/SynchronizedScrollView 31 | POM_SCM_URL=https://github.com/enrichman/SynchronizedScrollView 32 | POM_SCM_CONNECTION=scm:git@github.com:enrichman/SynchronizedScrollView.git 33 | POM_SCM_DEV_CONNECTION=scm:git@github.com:enrichman/SynchronizedScrollView.git 34 | POM_LICENCE_NAME=The MIT License (MIT) 35 | POM_LICENCE_URL=http://opensource.org/licenses/MIT 36 | POM_LICENCE_DIST=repo 37 | POM_DEVELOPER_ID=enrichman 38 | POM_DEVELOPER_NAME=Enrico Candino 39 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/enrichman/SynchronizedScrollView/ef6a98f227274d41dcfd5bebc382a98e84a5a9f8/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Wed Oct 21 11:34:03 PDT 2015 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-2.8-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # Attempt to set APP_HOME 46 | # Resolve links: $0 may be a link 47 | PRG="$0" 48 | # Need this for relative symlinks. 49 | while [ -h "$PRG" ] ; do 50 | ls=`ls -ld "$PRG"` 51 | link=`expr "$ls" : '.*-> \(.*\)$'` 52 | if expr "$link" : '/.*' > /dev/null; then 53 | PRG="$link" 54 | else 55 | PRG=`dirname "$PRG"`"/$link" 56 | fi 57 | done 58 | SAVED="`pwd`" 59 | cd "`dirname \"$PRG\"`/" >/dev/null 60 | APP_HOME="`pwd -P`" 61 | cd "$SAVED" >/dev/null 62 | 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 64 | 65 | # Determine the Java command to use to start the JVM. 66 | if [ -n "$JAVA_HOME" ] ; then 67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 68 | # IBM's JDK on AIX uses strange locations for the executables 69 | JAVACMD="$JAVA_HOME/jre/sh/java" 70 | else 71 | JAVACMD="$JAVA_HOME/bin/java" 72 | fi 73 | if [ ! -x "$JAVACMD" ] ; then 74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 75 | 76 | Please set the JAVA_HOME variable in your environment to match the 77 | location of your Java installation." 78 | fi 79 | else 80 | JAVACMD="java" 81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 82 | 83 | Please set the JAVA_HOME variable in your environment to match the 84 | location of your Java installation." 85 | fi 86 | 87 | # Increase the maximum file descriptors if we can. 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 89 | MAX_FD_LIMIT=`ulimit -H -n` 90 | if [ $? -eq 0 ] ; then 91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 92 | MAX_FD="$MAX_FD_LIMIT" 93 | fi 94 | ulimit -n $MAX_FD 95 | if [ $? -ne 0 ] ; then 96 | warn "Could not set maximum file descriptor limit: $MAX_FD" 97 | fi 98 | else 99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 100 | fi 101 | fi 102 | 103 | # For Darwin, add options to specify how the application appears in the dock 104 | if $darwin; then 105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 106 | fi 107 | 108 | # For Cygwin, switch paths to Windows format before running java 109 | if $cygwin ; then 110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 112 | JAVACMD=`cygpath --unix "$JAVACMD"` 113 | 114 | # We build the pattern for arguments to be converted via cygpath 115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 116 | SEP="" 117 | for dir in $ROOTDIRSRAW ; do 118 | ROOTDIRS="$ROOTDIRS$SEP$dir" 119 | SEP="|" 120 | done 121 | OURCYGPATTERN="(^($ROOTDIRS))" 122 | # Add a user-defined pattern to the cygpath arguments 123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 125 | fi 126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 127 | i=0 128 | for arg in "$@" ; do 129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 131 | 132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 134 | else 135 | eval `echo args$i`="\"$arg\"" 136 | fi 137 | i=$((i+1)) 138 | done 139 | case $i in 140 | (0) set -- ;; 141 | (1) set -- "$args0" ;; 142 | (2) set -- "$args0" "$args1" ;; 143 | (3) set -- "$args0" "$args1" "$args2" ;; 144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 150 | esac 151 | fi 152 | 153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 154 | function splitJvmOpts() { 155 | JVM_OPTS=("$@") 156 | } 157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 159 | 160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 161 | -------------------------------------------------------------------------------- /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 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 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 Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /library/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /library/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.library' 2 | 3 | android { 4 | compileSdkVersion Integer.parseInt(project.ANDROID_BUILD_SDK_VERSION) 5 | buildToolsVersion project.ANDROID_BUILD_TOOLS_VERSION 6 | 7 | defaultConfig { 8 | minSdkVersion Integer.parseInt(project.ANDROID_BUILD_MIN_SDK_VERSION) 9 | targetSdkVersion Integer.parseInt(project.ANDROID_BUILD_TARGET_SDK_VERSION) 10 | versionName project.VERSION_NAME 11 | versionCode Integer.parseInt(project.VERSION_CODE) 12 | } 13 | 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | 21 | lintOptions { 22 | abortOnError false 23 | } 24 | } 25 | 26 | apply from: 'https://raw.github.com/chrisbanes/gradle-mvn-push/master/gradle-mvn-push.gradle' 27 | -------------------------------------------------------------------------------- /library/gradle.properties: -------------------------------------------------------------------------------- 1 | POM_NAME=SynchronizedScrollView 2 | POM_ARTIFACT_ID=synchronizedscrollview 3 | POM_PACKAGING=aar -------------------------------------------------------------------------------- /library/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/enrico/Library/Android/sdk/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 | -------------------------------------------------------------------------------- /library/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 3 | 4 | 8 | 9 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /library/src/main/java/it/enricocandino/view/SynchronizedScrollView.java: -------------------------------------------------------------------------------- 1 | package it.enricocandino.view; 2 | 3 | import android.content.Context; 4 | import android.os.Build; 5 | import android.util.AttributeSet; 6 | import android.view.ViewTreeObserver; 7 | import android.widget.ScrollView; 8 | 9 | /** 10 | * Copyright (c) 2015 Enrico Candino 11 | *

12 | * Distributed under the MIT License. 13 | */ 14 | public class SynchronizedScrollView extends ScrollView implements Synchronizer.Synchronizable { 15 | 16 | public SynchronizedScrollView(Context context) { 17 | super(context); 18 | init(); 19 | } 20 | 21 | public SynchronizedScrollView(Context context, AttributeSet attrs) { 22 | super(context, attrs); 23 | init(); 24 | } 25 | 26 | public SynchronizedScrollView(Context context, AttributeSet attrs, int defStyleAttr) { 27 | super(context, attrs, defStyleAttr); 28 | init(); 29 | } 30 | 31 | private void init() { 32 | getViewTreeObserver().addOnGlobalLayoutListener(new SynchRegisterer()); 33 | } 34 | 35 | @Override 36 | protected void onDetachedFromWindow() { 37 | super.onDetachedFromWindow(); 38 | 39 | Synchronizer.getInstance().unregister(this); 40 | } 41 | 42 | @Override 43 | protected void onScrollChanged(int l, int t, int oldl, int oldt) { 44 | super.onScrollChanged(l, t, oldl, oldt); 45 | 46 | // listen for his scrolls and notify the Synchronizer 47 | Synchronizer.getInstance().update(this, getScrollY()); 48 | } 49 | 50 | @Override 51 | public void onUpdate(int update) { 52 | 53 | // listen for scrolls from your siblings 54 | scrollTo(getScrollX(), update); 55 | } 56 | 57 | /* 58 | * Used to register and update the ScrollView when ready 59 | * 60 | */ 61 | private class SynchRegisterer implements ViewTreeObserver.OnGlobalLayoutListener { 62 | 63 | @Override 64 | public void onGlobalLayout() { 65 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { 66 | SynchronizedScrollView.this.getViewTreeObserver().removeOnGlobalLayoutListener(this); 67 | }else{ 68 | SynchronizedScrollView.this.getViewTreeObserver().removeGlobalOnLayoutListener(this); 69 | } 70 | Synchronizer.getInstance().register(SynchronizedScrollView.this); 71 | } 72 | } 73 | } 74 | -------------------------------------------------------------------------------- /library/src/main/java/it/enricocandino/view/Synchronizer.java: -------------------------------------------------------------------------------- 1 | package it.enricocandino.view; 2 | 3 | import java.util.ArrayList; 4 | import java.util.List; 5 | 6 | /** 7 | * Copyright (c) 2015 Enrico Candino 8 | *

9 | * Distributed under the MIT License. 10 | */ 11 | public class Synchronizer { 12 | 13 | private static Synchronizer instance; 14 | 15 | private List synchronizableList; 16 | private int mOffset; 17 | 18 | private Synchronizer() { 19 | } 20 | 21 | public static Synchronizer getInstance() { 22 | if (instance == null) 23 | instance = new Synchronizer(); 24 | 25 | return instance; 26 | } 27 | 28 | public void register(Synchronizable synchronizable) { 29 | if (synchronizableList == null) 30 | synchronizableList = new ArrayList<>(); 31 | 32 | synchronizable.onUpdate(mOffset); 33 | 34 | synchronizableList.add(synchronizable); 35 | } 36 | 37 | public void unregister(Synchronizable synchronizable) { 38 | if (synchronizableList != null) 39 | synchronizableList.remove(synchronizable); 40 | } 41 | 42 | public void update(Synchronizable sender, int update) { 43 | if (update < 0) update = 0; 44 | 45 | mOffset = update; 46 | 47 | for (Synchronizable s : synchronizableList) { 48 | if (s != sender) 49 | s.onUpdate(update); 50 | } 51 | } 52 | 53 | public interface Synchronizable { 54 | void onUpdate(int update); 55 | } 56 | 57 | } 58 | -------------------------------------------------------------------------------- /library/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | SynchronizedScrollView 3 | 4 | -------------------------------------------------------------------------------- /sample/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /sample/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion Integer.parseInt(project.ANDROID_BUILD_SDK_VERSION) 5 | buildToolsVersion project.ANDROID_BUILD_TOOLS_VERSION 6 | 7 | defaultConfig { 8 | applicationId "it.enricocandino.ssv.sample" 9 | minSdkVersion Integer.parseInt(project.ANDROID_BUILD_MIN_SDK_VERSION) 10 | targetSdkVersion Integer.parseInt(project.ANDROID_BUILD_TARGET_SDK_VERSION) 11 | versionName project.VERSION_NAME 12 | versionCode Integer.parseInt(project.VERSION_CODE) 13 | } 14 | 15 | buildTypes { 16 | release { 17 | minifyEnabled false 18 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 19 | } 20 | } 21 | 22 | lintOptions { 23 | abortOnError false 24 | } 25 | } 26 | 27 | dependencies { 28 | compile project(':library') 29 | compile 'com.android.support:appcompat-v7:23.1.1' 30 | } 31 | -------------------------------------------------------------------------------- /sample/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/enrico/Library/Android/sdk/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 | -------------------------------------------------------------------------------- /sample/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /sample/src/main/java/it/enricocandino/ssv/sample/MainActivity.java: -------------------------------------------------------------------------------- 1 | package it.enricocandino.ssv.sample; 2 | 3 | import android.os.Bundle; 4 | import android.support.v4.app.Fragment; 5 | import android.support.v4.app.FragmentActivity; 6 | import android.support.v4.app.FragmentManager; 7 | import android.support.v4.app.FragmentPagerAdapter; 8 | import android.support.v4.content.ContextCompat; 9 | import android.support.v4.view.ViewPager; 10 | 11 | /** 12 | * Copyright (c) 2015 Enrico Candino 13 | *

14 | * Distributed under the MIT License. 15 | */ 16 | public class MainActivity extends FragmentActivity { 17 | 18 | private ViewPager mViewPager; 19 | private ScreenSlidePagerAdapter mPagerAdapter; 20 | 21 | @Override 22 | protected void onCreate(Bundle savedInstanceState) { 23 | super.onCreate(savedInstanceState); 24 | setContentView(R.layout.activity_main); 25 | 26 | mViewPager = (ViewPager) findViewById(R.id.my_view_pager); 27 | mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager()); 28 | mViewPager.setAdapter(mPagerAdapter); 29 | } 30 | 31 | 32 | private class ScreenSlidePagerAdapter extends FragmentPagerAdapter { 33 | 34 | private int[] fragmentColors = { 35 | R.color.color_1, 36 | R.color.color_2, 37 | R.color.color_3, 38 | R.color.color_4, 39 | R.color.color_5 40 | }; 41 | 42 | public ScreenSlidePagerAdapter(FragmentManager fm) { 43 | super(fm); 44 | } 45 | 46 | @Override 47 | public Fragment getItem(int position) { 48 | Fragment fragment = new ScrollableFragment(); 49 | 50 | Bundle args = new Bundle(); 51 | int color = ContextCompat.getColor(MainActivity.this, fragmentColors[position]); 52 | args.putInt("color", color); 53 | fragment.setArguments(args); 54 | 55 | return fragment; 56 | } 57 | 58 | @Override 59 | public int getCount() { 60 | return 5; 61 | } 62 | } 63 | } -------------------------------------------------------------------------------- /sample/src/main/java/it/enricocandino/ssv/sample/ScrollableFragment.java: -------------------------------------------------------------------------------- 1 | package it.enricocandino.ssv.sample; 2 | 3 | import android.os.Bundle; 4 | import android.support.v4.app.Fragment; 5 | import android.view.Gravity; 6 | import android.view.LayoutInflater; 7 | import android.view.View; 8 | import android.view.ViewGroup; 9 | import android.widget.LinearLayout; 10 | import android.widget.TextView; 11 | 12 | import it.enricocandino.view.SynchronizedScrollView; 13 | 14 | /** 15 | * Copyright (c) 2015 Enrico Candino 16 | *

17 | * Distributed under the MIT License. 18 | */ 19 | public class ScrollableFragment extends Fragment { 20 | 21 | @Override 22 | public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 23 | View rootView = inflater.inflate(R.layout.fragment_synchronized_scroll_view, container, false); 24 | 25 | LinearLayout rowContainer = (LinearLayout) rootView.findViewById(R.id.container); 26 | 27 | int fragmentColor = getArguments().getInt("color", 0xFFF44336); 28 | 29 | int count = 1; 30 | for (int opacity = 63; opacity < 256; opacity += 16) { 31 | 32 | TextView row = new TextView(getContext()); 33 | row.setLayoutParams(new SynchronizedScrollView.LayoutParams( 34 | ViewGroup.LayoutParams.MATCH_PARENT, 250 35 | )); 36 | row.setGravity(Gravity.CENTER); 37 | 38 | row.setBackgroundColor(fragmentColor); 39 | row.getBackground().setAlpha(opacity); 40 | row.setText(String.valueOf(count++)); 41 | 42 | rowContainer.addView(row); 43 | } 44 | 45 | return rootView; 46 | } 47 | } 48 | -------------------------------------------------------------------------------- /sample/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /sample/src/main/res/layout/fragment_synchronized_scroll_view.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 13 | 14 | -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/enrichman/SynchronizedScrollView/ef6a98f227274d41dcfd5bebc382a98e84a5a9f8/sample/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/enrichman/SynchronizedScrollView/ef6a98f227274d41dcfd5bebc382a98e84a5a9f8/sample/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/enrichman/SynchronizedScrollView/ef6a98f227274d41dcfd5bebc382a98e84a5a9f8/sample/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/enrichman/SynchronizedScrollView/ef6a98f227274d41dcfd5bebc382a98e84a5a9f8/sample/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/enrichman/SynchronizedScrollView/ef6a98f227274d41dcfd5bebc382a98e84a5a9f8/sample/src/main/res/mipmap-xxxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /sample/src/main/res/values-v21/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /sample/src/main/res/values-w820dp/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 64dp 6 | 7 | -------------------------------------------------------------------------------- /sample/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #3F51B5 4 | #303F9F 5 | #FF4081 6 | 7 | #2196F3 8 | #009688 9 | #8BC34A 10 | #FF9800 11 | #F44336 12 | 13 | 14 | -------------------------------------------------------------------------------- /sample/src/main/res/values/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16dp 4 | 16dp 5 | 6 | -------------------------------------------------------------------------------- /sample/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | Sample 3 | 4 | -------------------------------------------------------------------------------- /sample/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 12 | 13 | 14 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':library', ':sample' 2 | --------------------------------------------------------------------------------