├── .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 | [](https://travis-ci.org/enrichman/SynchronizedScrollView) [](https://maven-badges.herokuapp.com/maven-central/it.enricocandino/synchronizedscrollview) [](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 |
64 |
65 |
66 |
68 |
69 |
70 |
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 |
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/library/gradle.properties:
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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 |
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
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 | }
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/sample/src/main/java/it/enricocandino/ssv/sample/ScrollableFragment.java:
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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 |
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/sample/src/main/res/layout/activity_main.xml:
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1 |
2 |