├── app ├── .gitignore ├── src │ ├── main │ │ ├── res │ │ │ ├── values │ │ │ │ ├── strings.xml │ │ │ │ ├── colors.xml │ │ │ │ └── styles.xml │ │ │ ├── mipmap-xxhdpi │ │ │ │ ├── img1.jpg │ │ │ │ ├── img10.jpg │ │ │ │ ├── img11.jpg │ │ │ │ ├── img12.jpg │ │ │ │ ├── img13.jpg │ │ │ │ ├── img14.jpg │ │ │ │ ├── img15.jpg │ │ │ │ ├── img16.jpg │ │ │ │ ├── img17.jpg │ │ │ │ ├── img18.jpg │ │ │ │ ├── img19.jpg │ │ │ │ ├── img2.jpg │ │ │ │ ├── img20.jpg │ │ │ │ ├── img21.jpg │ │ │ │ ├── img22.jpg │ │ │ │ ├── img23.jpg │ │ │ │ ├── img24.jpg │ │ │ │ ├── img25.jpg │ │ │ │ ├── img26.jpg │ │ │ │ ├── img27.jpg │ │ │ │ ├── img28.jpg │ │ │ │ ├── img29.jpg │ │ │ │ ├── img3.jpg │ │ │ │ ├── img30.jpg │ │ │ │ ├── img31.jpg │ │ │ │ ├── img32.jpg │ │ │ │ ├── img33.jpg │ │ │ │ ├── img34.jpg │ │ │ │ ├── img35.jpg │ │ │ │ ├── img36.jpg │ │ │ │ ├── img37.jpg │ │ │ │ ├── img38.jpg │ │ │ │ ├── img39.jpg │ │ │ │ ├── img4.jpg │ │ │ │ ├── img40.jpg │ │ │ │ ├── img41.jpg │ │ │ │ ├── img42.jpg │ │ │ │ ├── img43.jpg │ │ │ │ ├── img44.jpg │ │ │ │ ├── img45.jpg │ │ │ │ ├── img46.jpg │ │ │ │ ├── img47.jpg │ │ │ │ ├── img48.jpg │ │ │ │ ├── img49.jpg │ │ │ │ ├── img5.jpg │ │ │ │ ├── img50.jpg │ │ │ │ ├── img51.jpg │ │ │ │ ├── img52.jpg │ │ │ │ ├── img53.jpg │ │ │ │ ├── img54.jpg │ │ │ │ ├── img55.jpg │ │ │ │ ├── img56.jpg │ │ │ │ ├── img57.jpg │ │ │ │ ├── img58.jpg │ │ │ │ ├── img59.jpg │ │ │ │ ├── img6.jpg │ │ │ │ ├── img60.jpg │ │ │ │ ├── img61.jpg │ │ │ │ ├── img62.jpg │ │ │ │ ├── img63.jpg │ │ │ │ ├── img64.jpg │ │ │ │ ├── img65.jpg │ │ │ │ ├── img66.jpg │ │ │ │ ├── img67.jpg │ │ │ │ ├── img68.jpg │ │ │ │ ├── img69.jpg │ │ │ │ ├── img7.jpg │ │ │ │ ├── img70.jpg │ │ │ │ ├── img71.jpg │ │ │ │ ├── img72.jpg │ │ │ │ ├── img73.jpg │ │ │ │ ├── img74.jpg │ │ │ │ ├── img75.jpg │ │ │ │ ├── img76.jpg │ │ │ │ ├── img77.jpg │ │ │ │ ├── img78.jpg │ │ │ │ ├── img79.jpg │ │ │ │ ├── img8.jpg │ │ │ │ ├── img80.jpg │ │ │ │ ├── img9.jpg │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── 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-xxxhdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ └── layout │ │ │ │ └── activity_main.xml │ │ ├── AndroidManifest.xml │ │ └── java │ │ │ └── com │ │ │ └── opensource │ │ │ └── vrphoto │ │ │ ├── utils │ │ │ ├── Utils.java │ │ │ └── BitmapUtils.java │ │ │ └── MainActivity.java │ ├── test │ │ └── java │ │ │ └── com │ │ │ └── opensource │ │ │ └── vrphoto │ │ │ └── ExampleUnitTest.java │ └── androidTest │ │ └── java │ │ └── com │ │ └── opensource │ │ └── vrphoto │ │ └── ExampleInstrumentedTest.java ├── proguard-rules.pro └── build.gradle ├── settings.gradle ├── .idea ├── copyright │ └── profiles_settings.xml ├── encodings.xml ├── vcs.xml ├── modules.xml ├── runConfigurations.xml ├── compiler.xml └── misc.xml ├── gradle └── 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-------------------------------------------------------------------------------- 1 | #Sat May 27 14:09:49 CST 2017 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-3.3-all.zip 7 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # VRPhoto 2 | 使用陀螺仪传感器、四元数 通过计算偏移的位置，切换相应的图片，产生视觉移动，这就是一个简单的VR版本 3 | 4 | 展示一组图片，图片会根据陀螺仪方面改变显示相应的图片，让你感觉图片跟着我们的视觉在改变，一个VR图片的简版！ 5 | 详细介绍请看博客：http://www.cnblogs.com/xiaoxiaoqingyi/p/6932008.html 6 | 7 | 8 | ![image](http://img.blog.csdn.net/20170601235513066?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvdTAxMDIwMzcxNg==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center) 9 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /app/src/test/java/com/opensource/vrphoto/ExampleUnitTest.java: -------------------------------------------------------------------------------- 1 | package com.opensource.vrphoto; 2 | 3 | import org.junit.Test; 4 | 5 | import static org.junit.Assert.*; 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * @see Testing documentation 11 | */ 12 | public class ExampleUnitTest { 13 | @Test 14 | public void addition_isCorrect() throws Exception { 15 | assertEquals(4, 2 + 2); 16 | } 17 | } -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 9 | 14 | 15 | 16 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /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 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/opensource/vrphoto/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.opensource.vrphoto; 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.opensource.vrphoto", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /.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/workspace.xml 38 | .idea/tasks.xml 39 | .idea/gradle.xml 40 | .idea/dictionaries 41 | .idea/libraries 42 | 43 | # Keystore files 44 | *.jks 45 | 46 | # External native build folder generated in Android Studio 2.2 and later 47 | .externalNativeBuild 48 | 49 | # Google Services (e.g. APIs or Firebase) 50 | google-services.json 51 | 52 | # Freeline 53 | freeline.py 54 | freeline/ 55 | freeline_project_description.json 56 | -------------------------------------------------------------------------------- /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 E:\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 | 19 | # Uncomment this to preserve the line number information for 20 | # debugging stack traces. 21 | #-keepattributes SourceFile,LineNumberTable 22 | 23 | # If you keep the line number information, uncomment this to 24 | # hide the original source file name. 25 | #-renamesourcefileattribute SourceFile 26 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 14 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 25 5 | buildToolsVersion "25.0.2" 6 | defaultConfig { 7 | applicationId "com.opensource.vrphoto" 8 | minSdkVersion 15 9 | targetSdkVersion 25 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | compile fileTree(dir: 'libs', include: ['*.jar']) 24 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 25 | exclude group: 'com.android.support', module: 'support-annotations' 26 | }) 27 | compile 'com.android.support:appcompat-v7:25.3.1' 28 | compile 'com.android.support.constraint:constraint-layout:1.0.2' 29 | testCompile 'junit:junit:4.12' 30 | } 31 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 19 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 46 | -------------------------------------------------------------------------------- /app/src/main/java/com/opensource/vrphoto/utils/Utils.java: -------------------------------------------------------------------------------- 1 | package com.opensource.vrphoto.utils; 2 | 3 | import android.app.Activity; 4 | import android.content.Context; 5 | import android.view.WindowManager; 6 | 7 | import java.text.SimpleDateFormat; 8 | import java.util.Date; 9 | 10 | /** 11 | * Created by Administrator on 2015/12/1. 12 | */ 13 | public class Utils { 14 | 15 | /** 16 | * 根据手机的分辨率从 dp 的单位 转成为 px(像素) 17 | */ 18 | public static int dip2px(Context context, float dpValue) { 19 | final float scale = context.getResources().getDisplayMetrics().density; 20 | return (int) (dpValue * scale + 0.5f); 21 | } 22 | 23 | /** 24 | * 根据手机的分辨率从 px(像素) 的单位 转成为 dp 25 | */ 26 | public static int px2dip(Context context, float pxValue) { 27 | final float scale = context.getResources().getDisplayMetrics().density; 28 | return (int) (pxValue / scale + 0.5f); 29 | } 30 | 31 | public static int getDisplayWidth(Activity context){ 32 | WindowManager wm = context.getWindowManager(); 33 | 34 | int width = wm.getDefaultDisplay().getWidth(); 35 | return width; 36 | } 37 | 38 | public static int getDisplayWHHeigth(Activity context){ 39 | WindowManager wm = context.getWindowManager(); 40 | 41 | int height = wm.getDefaultDisplay().getHeight(); 42 | return height; 43 | } 44 | 45 | /** 46 | * 数字时间串 47 | * @return 48 | */ 49 | public static String getDateNumber(){ 50 | Date currentTime = new Date(); 51 | SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss"); 52 | String dateString = formatter.format(currentTime); 53 | return dateString; 54 | } 55 | 56 | /** 57 | * 随机num个字母 58 | * @return 59 | */ 60 | public static String randomCapital(int num){ 61 | String chars = "abcdefghijklmnopqrstuvwxyz"; 62 | StringBuffer buffer = new StringBuffer(); 63 | for (int i =0; i< num; i++){ 64 | buffer.append(chars.charAt((int)(Math.random() * 26))); 65 | } 66 | return buffer.toString(); 67 | } 68 | 69 | 70 | /** 71 | * 获取一个四元素 72 | * @param Q 73 | * @param rv 74 | */ 75 | public static void getQuaternionFromVector(float[] Q, float[] rv) { 76 | if (rv.length >= 4) { 77 | Q[0] = rv[3]; 78 | } else { 79 | Q[0] = 1 - rv[0]*rv[0] - rv[1]*rv[1] - rv[2]*rv[2]; 80 | Q[0] = (Q[0] > 0) ? (float) Math.sqrt(Q[0]) : 0; 81 | } 82 | Q[1] = -rv[0]; 83 | Q[2] = -rv[1]; 84 | Q[3] = -rv[2]; 85 | } 86 | 87 | } 88 | -------------------------------------------------------------------------------- /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 | -------------------------------------------------------------------------------- /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 | -------------------------------------------------------------------------------- /app/src/main/java/com/opensource/vrphoto/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.opensource.vrphoto; 2 | 3 | import android.content.Context; 4 | import android.hardware.Sensor; 5 | import android.hardware.SensorEvent; 6 | import android.hardware.SensorEventListener; 7 | import android.hardware.SensorManager; 8 | import android.os.Handler; 9 | import android.os.Message; 10 | import android.support.v7.app.AppCompatActivity; 11 | import android.os.Bundle; 12 | import android.util.Log; 13 | import android.view.MotionEvent; 14 | import android.view.WindowManager; 15 | import android.widget.ImageView; 16 | 17 | import com.opensource.vrphoto.utils.Utils; 18 | 19 | 20 | public class MainActivity extends AppCompatActivity implements SensorEventListener { 21 | 22 | private final static int BASE_RACE = 80; 23 | private final static int FASTEST_RACE = 20; 24 | private SensorManager mSensorManager; 25 | private Sensor mSensor; 26 | private long num; 27 | private ImageView img; 28 | 29 | /** 30 | * 标识图像转动的方向 31 | */ 32 | private boolean isRightRotate = false; 33 | /** 34 | * 默认显示第一张图片 35 | */ 36 | private int curFrame = 0; 37 | /** 38 | * 间距，每滑动这个间距就换一张图片 39 | */ 40 | private final static int interval = 30; 41 | /** 42 | * 按下时显示的图片 43 | */ 44 | private int acton_down_page = 0; 45 | private Object object = new Object(); 46 | private float[] lastQ = new float[4]; 47 | float down_x = 0; 48 | long down_time = 0; 49 | float up_x = 0; 50 | long up_time = 0; 51 | private int curRate = 80; 52 | private float tempValue = 0; 53 | 54 | 55 | private int[] imgArray = { 56 | R.mipmap.img1, R.mipmap.img2, R.mipmap.img3, R.mipmap.img4, R.mipmap.img5, R.mipmap.img6, R.mipmap.img7,R.mipmap.img8,R.mipmap.img9,R.mipmap.img10 57 | ,R.mipmap.img11, R.mipmap.img12, R.mipmap.img13, R.mipmap.img14, R.mipmap.img15, R.mipmap.img16, R.mipmap.img17,R.mipmap.img18,R.mipmap.img19,R.mipmap.img20 58 | ,R.mipmap.img21, R.mipmap.img22, R.mipmap.img22, R.mipmap.img24, R.mipmap.img25, R.mipmap.img26, R.mipmap.img27,R.mipmap.img28,R.mipmap.img29,R.mipmap.img30 59 | ,R.mipmap.img31, R.mipmap.img32, R.mipmap.img33, R.mipmap.img34, R.mipmap.img35, R.mipmap.img36, R.mipmap.img37,R.mipmap.img38,R.mipmap.img39,R.mipmap.img40 60 | ,R.mipmap.img41, R.mipmap.img42, R.mipmap.img43, R.mipmap.img44, R.mipmap.img45, R.mipmap.img46, R.mipmap.img47,R.mipmap.img48,R.mipmap.img49,R.mipmap.img50 61 | ,R.mipmap.img51, R.mipmap.img52, R.mipmap.img53, R.mipmap.img54, R.mipmap.img55, R.mipmap.img56, R.mipmap.img57,R.mipmap.img58,R.mipmap.img59,R.mipmap.img60 62 | ,R.mipmap.img61, R.mipmap.img62, R.mipmap.img63, R.mipmap.img64, R.mipmap.img65, R.mipmap.img66, R.mipmap.img67,R.mipmap.img68,R.mipmap.img69,R.mipmap.img70 63 | ,R.mipmap.img71, R.mipmap.img72, R.mipmap.img73, R.mipmap.img74, R.mipmap.img75, R.mipmap.img76, R.mipmap.img77,R.mipmap.img78,R.mipmap.img79,R.mipmap.img80 64 | 65 | }; 66 | 67 | 68 | @Override 69 | protected void onCreate(Bundle savedInstanceState) { 70 | getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 71 | WindowManager.LayoutParams.FLAG_FULLSCREEN); 72 | super.onCreate(savedInstanceState); 73 | setContentView(R.layout.activity_main); 74 | initView(); 75 | 76 | } 77 | 78 | private void initView(){ 79 | getSupportActionBar().hide(); 80 | img = (ImageView)findViewById(R.id.img); 81 | 82 | //展示最中间的一张 83 | int lenght = imgArray.length; 84 | int i = lenght%2==0 ? lenght/2-1 : lenght/2; 85 | img.setImageResource(imgArray[imgArray.length/2 - 1]); 86 | curFrame = i; 87 | 88 | mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE); 89 | mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ROTATION_VECTOR); 90 | } 91 | 92 | 93 | @Override 94 | protected void onResume() { 95 | super.onResume(); 96 | mSensorManager.registerListener(this, mSensor, SensorManager.SENSOR_DELAY_NORMAL); 97 | } 98 | 99 | @Override 100 | protected void onPause() { 101 | super.onPause(); 102 | mSensorManager.unregisterListener(this); 103 | } 104 | 105 | @Override 106 | protected void onDestroy() { 107 | super.onDestroy(); 108 | } 109 | 110 | @Override 111 | public void onSensorChanged(SensorEvent event) { 112 | // Log.i("Sensor", " x=" + event.values[0] + " y=" + event.values[1] + " z=" + event.values[2]+ " w=" + event.values[3]); 113 | 114 | //Android 已经提供 Sensor.TYPE_POSE_6DOF 传感器监听，直接给出四元数的值，详细请查看： 115 | //https://developer.android.google.cn/reference/android/hardware/SensorEvent.html#values 116 | //但是有些版本过低，还获取不到，所以我还是采用 Sensor.TYPE_ROTATION_VECTOR 监听，然后再转换成四元数 117 | 118 | float[] QAC = new float[4]; 119 | Utils.getQuaternionFromVector(QAC, event.values); 120 | 121 | if(num >= 3){ 122 | float[] QBA = new float[4]; 123 | QBA[0] = lastQ[0]; 124 | QBA[1] = -lastQ[1]; 125 | QBA[2] = -lastQ[2]; 126 | QBA[3] = -lastQ[3]; 127 | // QBA = QBA * QAC 128 | float[] QBC = new float[4]; 129 | QBC[0] = QAC[0]*QBA[0] - QAC[1]*QBA[1] - QAC[2]*QBA[2] -QAC[3]*QBA[3]; 130 | QBC[1] = QAC[0]*QBA[1] + QAC[1]*QBA[0] + QAC[2]*QBA[3] -QAC[3]*QBA[2]; 131 | QBC[2] = QAC[0]*QBA[2] - QAC[1]*QBA[3] + QAC[2]*QBA[0] +QAC[3]*QBA[1]; 132 | QBC[3] = QAC[0]*QBA[3] + QAC[1]*QBA[2] - QAC[2]*QBA[1] +QAC[3]*QBA[0]; 133 | 134 | //偏向Z轴的位移 135 | double z = Math.atan2(2*QBC[1]*QBC[2] - 2*QBC[0]*QBC[3] 136 | , 2*QBC[0]*QBC[0] + 2*QBC[1]*QBC[1]-1); 137 | //偏向X轴的位移 138 | double x = -Math.asin(2*QBC[1]*QBC[3] + 2*QBC[0]*QBC[2]); 139 | //偏向Y轴的位移 140 | double y = Math.atan2(2*QBC[2]*QBC[3] - 2*QBC[0]*QBC[1] 141 | , 2*QBC[0]*QBC[0] + 2*QBC[3]*QBC[3]-1); 142 | 143 | java.text.DecimalFormat df =new java.text.DecimalFormat("#0.000"); 144 | Log.i("Sensor","z=" + df.format(z) + " x=" + df.format(x) + " y=" +df.format(y) ); 145 | 146 | int distance = (int)Math.round(y / 0.02); 147 | curFrame = curFrame - distance; 148 | if(curFrame <= 0){ 149 | curFrame = 0; 150 | }else if(curFrame >= imgArray.length-1){ 151 | curFrame = imgArray.length - 1; 152 | } 153 | 154 | if(distance != 0){ 155 | mHandler.sendEmptyMessage(curFrame); 156 | lastQ = QAC; 157 | } 158 | 159 | } else { 160 | num++; 161 | lastQ = QAC; 162 | } 163 | 164 | } 165 | 166 | @Override 167 | public void onAccuracyChanged(Sensor sensor, int accuracy) { 168 | Log.i("Sensor","accuracy="+accuracy); 169 | } 170 | 171 | public void leftRotate(){ 172 | this.isRightRotate = false; 173 | } 174 | 175 | public void rightRotate(){ 176 | this.isRightRotate = true; 177 | } 178 | 179 | /** 180 | * 处理滑动时的X坐标改变 181 | * @param offset_X 182 | */ 183 | private void slidingHander(float offset_X){ 184 | 185 | if((offset_X- down_x)/interval > 1){ 186 | curFrame = acton_down_page - (int)(offset_X- down_x)/interval; 187 | turnRight(); 188 | 189 | }else if((offset_X - down_x )/interval < -1){ 190 | curFrame = acton_down_page + Math.abs((int)(offset_X- down_x)/interval); 191 | turnLeft(); 192 | } 193 | } 194 | 195 | 196 | private void turnRight(){ 197 | if(curFrame <= 0 ){ 198 | curFrame = 0; 199 | return; 200 | } 201 | 202 | if(curFrame < imgArray.length){ 203 | img.setImageResource(imgArray[curFrame]); 204 | } 205 | } 206 | 207 | private void turnLeft(){ 208 | if(curFrame >= imgArray.length - 1){ 209 | curFrame = imgArray.length -1; 210 | return; 211 | } 212 | if(curFrame >= 0){ 213 | img.setImageResource(imgArray[curFrame]); 214 | } 215 | } 216 | 217 | /** 218 | * 处理用户离开屏幕动作 219 | * @param offset_X 220 | */ 221 | private void actionUpHander(float offset_X){ 222 | 223 | acton_down_page = curFrame; 224 | up_x = offset_X; 225 | up_time = System.currentTimeMillis(); 226 | float rate = (up_x - down_x)/(up_time - down_time); 227 | 228 | if(rate > 0){ 229 | rightRotate(); 230 | }else { 231 | leftRotate(); 232 | } 233 | 234 | if(rate < 0.8 && rate > -0.8){ 235 | }else if(rate > 3 || rate < -3){ 236 | curRate = FASTEST_RACE; 237 | 238 | }else if(rate >= 0.8 && rate <= 3){ 239 | curRate = (int) (BASE_RACE/rate); 240 | 241 | }else if(rate >= -3 && rate <= -0.8){ 242 | curRate = (int) Math.abs(BASE_RACE/rate); 243 | 244 | } 245 | } 246 | 247 | 248 | @Override 249 | public boolean onTouchEvent(MotionEvent event) { 250 | 251 | switch (event.getAction()){ 252 | case MotionEvent.ACTION_DOWN: 253 | down_time = System.currentTimeMillis(); 254 | down_x = event.getX(); 255 | acton_down_page = curFrame; 256 | break; 257 | 258 | case MotionEvent.ACTION_MOVE: 259 | slidingHander(event.getX()); 260 | break; 261 | 262 | case MotionEvent.ACTION_UP: 263 | actionUpHander(event.getX()); 264 | break; 265 | } 266 | return super.onTouchEvent(event); 267 | } 268 | 269 | Handler mHandler = new Handler(){ 270 | @Override 271 | public void handleMessage(final Message msg) { 272 | super.handleMessage(msg); 273 | Log.i("ACTION","curFrame="+ msg.what); 274 | 275 | if(msg.what >= 0 && msg.what < imgArray.length){ 276 | img.setImageResource(imgArray[msg.what]); 277 | 278 | } 279 | } 280 | }; 281 | 282 | } 283 | -------------------------------------------------------------------------------- /app/src/main/java/com/opensource/vrphoto/utils/BitmapUtils.java: -------------------------------------------------------------------------------- 1 | package com.opensource.vrphoto.utils; 2 | 3 | import android.graphics.Bitmap; 4 | import android.graphics.BitmapFactory; 5 | import android.graphics.Canvas; 6 | import android.graphics.Matrix; 7 | import android.graphics.Paint; 8 | import android.graphics.PorterDuff; 9 | import android.graphics.PorterDuffXfermode; 10 | import android.graphics.Rect; 11 | import android.graphics.RectF; 12 | import android.os.Environment; 13 | 14 | import java.io.File; 15 | import java.io.FileOutputStream; 16 | import java.io.IOException; 17 | 18 | /** 19 | * Various bitmap utilities 20 | * 21 | */ 22 | public class BitmapUtils { 23 | 24 | /** 25 | * Resize a bitmap 26 | * 27 | * @param input 28 | * @param destWidth 29 | * @param destHeight 30 | * @return 31 | * @throws OutOfMemoryError 32 | */ 33 | public static Bitmap resizeBitmap(final Bitmap input, int destWidth, int destHeight ) throws OutOfMemoryError { 34 | return resizeBitmap( input, destWidth, destHeight, 0 ); 35 | } 36 | 37 | /** 38 | * Resize a bitmap object to fit the passed width and height 39 | * 40 | * @param input 41 | * The bitmap to be resized 42 | * @param destWidth 43 | * Desired maximum width of the result bitmap 44 | * @param destHeight 45 | * Desired maximum height of the result bitmap 46 | * @return A new resized bitmap 47 | * @throws OutOfMemoryError 48 | * if the operation exceeds the available vm memory 49 | */ 50 | public static Bitmap resizeBitmap(final Bitmap input, int destWidth, int destHeight, int rotation ) throws OutOfMemoryError { 51 | 52 | int dstWidth = destWidth; 53 | int dstHeight = destHeight; 54 | final int srcWidth = input.getWidth(); 55 | final int srcHeight = input.getHeight(); 56 | 57 | if ( rotation == 90 || rotation == 270 ) { 58 | dstWidth = destHeight; 59 | dstHeight = destWidth; 60 | } 61 | 62 | boolean needsResize = false; 63 | float p; 64 | if ( ( srcWidth > dstWidth ) || ( srcHeight > dstHeight ) ) { 65 | needsResize = true; 66 | if ( ( srcWidth > srcHeight ) && ( srcWidth > dstWidth ) ) { 67 | p = (float) dstWidth / (float) srcWidth; 68 | dstHeight = (int) ( srcHeight * p ); 69 | } else { 70 | p = (float) dstHeight / (float) srcHeight; 71 | dstWidth = (int) ( srcWidth * p ); 72 | } 73 | } else { 74 | dstWidth = srcWidth; 75 | dstHeight = srcHeight; 76 | } 77 | 78 | if ( needsResize || rotation != 0 ) { 79 | Bitmap output; 80 | 81 | if ( rotation == 0 ) { 82 | output = Bitmap.createScaledBitmap(input, dstWidth, dstHeight, true); 83 | } else { 84 | Matrix matrix = new Matrix(); 85 | matrix.postScale( (float) dstWidth / srcWidth, (float) dstHeight / srcHeight ); 86 | matrix.postRotate( rotation ); 87 | output = Bitmap.createBitmap(input, 0, 0, srcWidth, srcHeight, matrix, true); 88 | } 89 | return output; 90 | } else 91 | return input; 92 | } 93 | 94 | public static void saveBitmap(Bitmap mBitmap, String dir, String fileName) { 95 | 96 | String savePath = ""; 97 | // 判断是否挂载了SD卡 98 | String storageState = Environment.getExternalStorageState(); 99 | if (storageState.equals(Environment.MEDIA_MOUNTED)) { 100 | savePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/RecordVideo/" + dir;// 存放照片的文件夹 101 | File savedir = new File(savePath); 102 | if (!savedir.exists()) { 103 | savedir.mkdirs(); 104 | } 105 | } 106 | 107 | // 没有挂载SD卡，无法保存文件 108 | if (isEmpty(savePath)) { 109 | // Toast.makeText(context, "无法保存照片，请检查SD卡是否挂载", Toast.LENGTH_SHORT).show(); 110 | return; 111 | } 112 | 113 | File f = new File(savePath, fileName); 114 | FileOutputStream fOut = null; 115 | 116 | try { 117 | fOut = new FileOutputStream(f); 118 | mBitmap.compress(Bitmap.CompressFormat.JPEG, 100, fOut); 119 | mBitmap.recycle(); 120 | fOut.flush(); 121 | fOut.close(); 122 | } catch (IOException e) { 123 | e.printStackTrace(); 124 | } 125 | } 126 | 127 | public static boolean isEmpty(String input) { 128 | if (input == null || "".equals(input)) 129 | return true; 130 | 131 | for (int i = 0; i < input.length(); i++) { 132 | char c = input.charAt(i); 133 | if (c != ' ' && c != '\t' && c != '\r' && c != '\n') { 134 | return false; 135 | } 136 | } 137 | return true; 138 | } 139 | 140 | public static Bitmap getRoundedCornerBitmap(Bitmap bitmap) { 141 | Bitmap outBitmap = Bitmap.createBitmap(bitmap.getWidth(), 142 | bitmap.getHeight(), Bitmap.Config.ARGB_8888); 143 | Canvas canvas = new Canvas(outBitmap); 144 | final int color = 0xff424242; 145 | final Paint paint = new Paint(); 146 | final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); 147 | final RectF rectF = new RectF(rect); 148 | final float roundPX = bitmap.getWidth() / 2; 149 | paint.setAntiAlias(true); 150 | canvas.drawARGB(0, 0, 0, 0); 151 | paint.setColor(color); 152 | canvas.drawRoundRect(rectF, roundPX, roundPX, paint); 153 | paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN)); 154 | canvas.drawBitmap(bitmap, rect, rect, paint); 155 | return outBitmap; 156 | } 157 | 158 | /** 159 | * 缩放图片 160 | * 161 | * @param bitmap 162 | * @param zf 163 | * @return 164 | */ 165 | public static Bitmap zoom(Bitmap bitmap, float zf) { 166 | Matrix matrix = new Matrix(); 167 | matrix.postScale(zf, zf); 168 | return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), 169 | bitmap.getHeight(), matrix, true); 170 | } 171 | 172 | /** 173 | * 缩放图片 174 | * 175 | * @param bitmap 176 | * @param hf 177 | * @return 178 | */ 179 | public static Bitmap zoom(Bitmap bitmap, float wf, float hf) { 180 | Matrix matrix = new Matrix(); 181 | matrix.postScale(wf, hf); 182 | return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), 183 | bitmap.getHeight(), matrix, true); 184 | } 185 | 186 | /** 187 | * 图片圆角处理 188 | * 189 | * @param bitmap 190 | * @param roundPX 191 | * @return 192 | */ 193 | public static Bitmap getRCB(Bitmap bitmap, float roundPX) { 194 | // RCB means 195 | // Rounded 196 | // Corner Bitmap 197 | Bitmap dstbmp = Bitmap.createBitmap(bitmap.getWidth(), 198 | bitmap.getHeight(), Bitmap.Config.ARGB_8888); 199 | Canvas canvas = new Canvas(dstbmp); 200 | 201 | final int color = 0xff424242; 202 | final Paint paint = new Paint(); 203 | final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); 204 | final RectF rectF = new RectF(rect); 205 | paint.setAntiAlias(true); 206 | canvas.drawARGB(0, 0, 0, 0); 207 | paint.setColor(color); 208 | canvas.drawRoundRect(rectF, roundPX, roundPX, paint); 209 | paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN)); 210 | canvas.drawBitmap(bitmap, rect, rect, paint); 211 | return dstbmp; 212 | } 213 | 214 | public static Bitmap getBitmapFromFilePath(String filePath) { 215 | try { 216 | return BitmapFactory.decodeFile(filePath); 217 | } catch (OutOfMemoryError e) { 218 | e.printStackTrace(); 219 | } 220 | return null; 221 | } 222 | 223 | public static Bitmap getBitmapFromFilePath(String filePath, int width, int height) { 224 | BitmapFactory.Options opts = null; 225 | if (width > 0 && height > 0) { 226 | opts = new BitmapFactory.Options(); 227 | opts.inJustDecodeBounds = true; 228 | BitmapFactory.decodeFile(filePath, opts); 229 | // 计算图片缩放比例 230 | final int minSideLength = Math.min(width, height); 231 | opts.inSampleSize = computeSampleSize(opts, minSideLength, 232 | width * height); 233 | opts.inJustDecodeBounds = false; 234 | opts.inInputShareable = true; 235 | opts.inPurgeable = true; 236 | } 237 | try { 238 | return BitmapFactory.decodeFile(filePath, opts); 239 | } catch (OutOfMemoryError e) { 240 | e.printStackTrace(); 241 | } 242 | return null; 243 | } 244 | 245 | public static Bitmap getBitmapFromFile(File dst, int width, int height) { 246 | if (null != dst && dst.exists()) { 247 | BitmapFactory.Options opts = null; 248 | if (width > 0 && height > 0) { 249 | opts = new BitmapFactory.Options(); 250 | opts.inJustDecodeBounds = true; 251 | BitmapFactory.decodeFile(dst.getPath(), opts); 252 | // 计算图片缩放比例 253 | final int minSideLength = Math.min(width, height); 254 | opts.inSampleSize = computeSampleSize(opts, minSideLength, 255 | width * height); 256 | opts.inJustDecodeBounds = false; 257 | opts.inInputShareable = true; 258 | opts.inPurgeable = true; 259 | } 260 | try { 261 | return BitmapFactory.decodeFile(dst.getPath(), opts); 262 | } catch (OutOfMemoryError e) { 263 | e.printStackTrace(); 264 | } 265 | } 266 | return null; 267 | } 268 | 269 | public static int computeSampleSize(BitmapFactory.Options options, 270 | int minSideLength, int maxNumOfPixels) { 271 | int initialSize = computeInitialSampleSize(options, minSideLength, 272 | maxNumOfPixels); 273 | 274 | int roundedSize; 275 | if (initialSize <= 8) { 276 | roundedSize = 1; 277 | while (roundedSize < initialSize) { 278 | roundedSize <<= 1; 279 | } 280 | } else { 281 | roundedSize = (initialSize + 7) / 8 * 8; 282 | } 283 | 284 | return roundedSize; 285 | } 286 | 287 | private static int computeInitialSampleSize(BitmapFactory.Options options, 288 | int minSideLength, int maxNumOfPixels) { 289 | double w = options.outWidth; 290 | double h = options.outHeight; 291 | 292 | int lowerBound = (maxNumOfPixels == -1) ? 1 : (int) Math.ceil(Math 293 | .sqrt(w * h / maxNumOfPixels)); 294 | int upperBound = (minSideLength == -1) ? 128 : (int) Math.min(Math 295 | .floor(w / minSideLength), Math.floor(h / minSideLength)); 296 | 297 | if (upperBound < lowerBound) { 298 | // return the larger one when there is no overlapping zone. 299 | return lowerBound; 300 | } 301 | 302 | if ((maxNumOfPixels == -1) && (minSideLength == -1)) { 303 | return 1; 304 | } else if (minSideLength == -1) { 305 | return lowerBound; 306 | } else { 307 | return upperBound; 308 | } 309 | } 310 | 311 | public static Bitmap addPadding(Bitmap bmp, int color) { 312 | 313 | if (bmp == null) { 314 | return null; 315 | } 316 | 317 | int biggerParam = Math.max(bmp.getWidth(), bmp.getHeight()); 318 | Bitmap bitmap = Bitmap.createBitmap(biggerParam, biggerParam, bmp.getConfig()); 319 | Canvas canvas = new Canvas(bitmap); 320 | canvas.drawColor(color); 321 | 322 | int top = bmp.getHeight() > bmp.getWidth() ? 0 : (bmp.getWidth() - bmp.getHeight())/2; 323 | int left = bmp.getWidth() > bmp.getHeight() ? 0 : (bmp.getHeight() - bmp.getWidth())/2; 324 | 325 | canvas.drawBitmap(bmp, left, top, null); 326 | return bitmap; 327 | } 328 | 329 | } 330 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------