├── app ├── .gitignore ├── src │ └── main │ │ ├── res │ │ ├── values │ │ │ ├── strings.xml │ │ │ ├── styles.xml │ │ │ └── dimens.xml │ │ ├── mipmap-hdpi │ │ │ └── ic_launcher.png │ │ ├── mipmap-mdpi │ │ │ └── ic_launcher.png │ │ ├── mipmap-xhdpi │ │ │ └── ic_launcher.png │ │ ├── mipmap-xxhdpi │ │ │ └── ic_launcher.png │ │ └── values-v21 │ │ │ └── styles.xml │ │ ├── AndroidManifest.xml │ │ └── java │ │ └── com │ │ └── example │ │ └── android │ │ └── eddystonescanner │ │ ├── SampleBeacon.java │ │ ├── MainActivity.java │ │ └── EddystoneScannerService.java ├── build.gradle └── proguard-rules.pro ├── settings.gradle ├── .gitignore ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradle.properties ├── README.md ├── gradlew.bat └── gradlew /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app' 2 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .gradle 2 | /local.properties 3 | /.idea/ 4 | *.iml 5 | .DS_Store 6 | /build 7 | /captures 8 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | Eddystone Scanner 3 | 4 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/devunwired/eddystone-scanner/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/devunwired/eddystone-scanner/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/devunwired/eddystone-scanner/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/devunwired/eddystone-scanner/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/devunwired/eddystone-scanner/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/values-v21/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /app/src/main/res/values/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16dp 4 | 16dp 5 | 6 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Wed Apr 10 15:27:10 PDT 2013 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-2.2.1-all.zip 7 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 22 5 | buildToolsVersion "22.0.1" 6 | 7 | defaultConfig { 8 | applicationId "com.example.android.eddystonescanner" 9 | minSdkVersion 21 10 | targetSdkVersion 22 11 | versionCode 1 12 | versionName "1.0" 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 | } 25 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /Users/davesmith/android-sdk-mac_86/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 | -------------------------------------------------------------------------------- /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 | # 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 -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 8 | 13 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 25 | 26 | 27 | 28 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | #Eddystone Scanner# 2 | This repository contains an example of using the Android BLE APIs (21+) to scan for an Eddystone-UID beacon. You can find more information about Eddystone at https://github.com/google/eddystone 3 | 4 | ##Disclaimer## 5 | 6 | This repository contains sample code intended to demonstrate the capabilities of the Android Bluetooth LE APIs. It is not intended to be used as-is in applications as a library dependency, and will not be maintained as such. Bug fix contributions are welcome, but issues and feature requests will not be addressed. 7 | 8 | ##License## 9 | 10 | **The code supplied here is covered under the MIT Open Source License:** 11 | 12 | Copyright (c) 2015 Wireless Designs, LLC 13 | 14 | Permission is hereby granted, free of charge, to any person obtaining 15 | a copy of this software and associated documentation files (the 16 | "Software"), to deal in the Software without restriction, including 17 | without limitation the rights to use, copy, modify, merge, publish, 18 | distribute, sublicense, and/or sell copies of the Software, and to 19 | permit persons to whom the Software is furnished to do so, subject to 20 | the following conditions: 21 | 22 | The above copyright notice and this permission notice shall be 23 | included in all copies or substantial portions of the Software. 24 | 25 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 29 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 30 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 31 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 32 | -------------------------------------------------------------------------------- /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 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/android/eddystonescanner/SampleBeacon.java: -------------------------------------------------------------------------------- 1 | package com.example.android.eddystonescanner; 2 | 3 | import android.util.Log; 4 | 5 | import java.text.NumberFormat; 6 | 7 | /** 8 | * Simple model class to house relevant data coming from 9 | * beacon advertisements. 10 | */ 11 | public class SampleBeacon { 12 | private static final String TAG = SampleBeacon.class.getSimpleName(); 13 | 14 | public String deviceAddress; 15 | public String id; 16 | public int latestRssi; 17 | public long lastDetectedTimestamp; 18 | 19 | public float battery; 20 | public float temperature; 21 | 22 | public SampleBeacon(String address, int rssi, String identifier, long timestamp) { 23 | this.deviceAddress = address; 24 | this.latestRssi = rssi; 25 | this.id = identifier; 26 | this.lastDetectedTimestamp = timestamp; 27 | 28 | this.battery = -1f; 29 | this.temperature = -1f; 30 | } 31 | 32 | public void update(String address, int rssi, long timestamp) { 33 | this.deviceAddress = address; 34 | this.latestRssi = rssi; 35 | this.lastDetectedTimestamp = timestamp; 36 | } 37 | 38 | @Override 39 | public String toString() { 40 | return String.format("%s\n%ddBm Battery: %s Temperature: %s", 41 | id, latestRssi, 42 | battery < 0f ? "N/A" : String.format("%.1fV", battery), 43 | temperature < 0f ? "N/A" : String.format("%.1fC", temperature)); 44 | } 45 | 46 | // Parse the instance id out of a UID packet 47 | public static String getInstanceId(byte[] data) { 48 | StringBuilder sb = new StringBuilder(); 49 | 50 | //UID packets are always 18 bytes in length 51 | //Parse out the last 6 bytes for the id 52 | int packetLength = 18; 53 | int offset = packetLength - 6; 54 | for (int i=offset; i < packetLength; i++) { 55 | sb.append(Integer.toHexString(data[i] & 0xFF)); 56 | } 57 | 58 | return sb.toString(); 59 | } 60 | 61 | // Parse the battery level out of a TLM packet 62 | public static float getTlmBattery(byte[] data) { 63 | byte version = data[1]; 64 | if (version != 0) { 65 | Log.w(TAG, "Unknown telemetry version"); 66 | return -1; 67 | } 68 | int voltage = (data[2] & 0xFF) << 8; 69 | voltage += (data[3] & 0xFF); 70 | 71 | //Value is 1mV per bit 72 | return voltage / 1000f; 73 | } 74 | 75 | // Parse the temperature out of a TLM packet 76 | public static float getTlmTemperature(byte[] data) { 77 | byte version = data[1]; 78 | if (version != 0) { 79 | Log.w(TAG, "Unknown telemetry version"); 80 | return -1; 81 | } 82 | 83 | if (data[4] == (byte)0x80 && data[5] == (byte)0x00) { 84 | Log.w(TAG, "Temperature not supported"); 85 | return -1; 86 | } 87 | 88 | int temp = (data[4] << 8); 89 | temp += (data[5] & 0xFF); 90 | 91 | return temp / 256f; 92 | } 93 | } 94 | -------------------------------------------------------------------------------- /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 | # For Cygwin, ensure paths are in UNIX format before anything is touched. 46 | if $cygwin ; then 47 | [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 48 | fi 49 | 50 | # Attempt to set APP_HOME 51 | # Resolve links: $0 may be a link 52 | PRG="$0" 53 | # Need this for relative symlinks. 54 | while [ -h "$PRG" ] ; do 55 | ls=`ls -ld "$PRG"` 56 | link=`expr "$ls" : '.*-> \(.*\)$'` 57 | if expr "$link" : '/.*' > /dev/null; then 58 | PRG="$link" 59 | else 60 | PRG=`dirname "$PRG"`"/$link" 61 | fi 62 | done 63 | SAVED="`pwd`" 64 | cd "`dirname \"$PRG\"`/" >&- 65 | APP_HOME="`pwd -P`" 66 | cd "$SAVED" >&- 67 | 68 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 69 | 70 | # Determine the Java command to use to start the JVM. 71 | if [ -n "$JAVA_HOME" ] ; then 72 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 73 | # IBM's JDK on AIX uses strange locations for the executables 74 | JAVACMD="$JAVA_HOME/jre/sh/java" 75 | else 76 | JAVACMD="$JAVA_HOME/bin/java" 77 | fi 78 | if [ ! -x "$JAVACMD" ] ; then 79 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 80 | 81 | Please set the JAVA_HOME variable in your environment to match the 82 | location of your Java installation." 83 | fi 84 | else 85 | JAVACMD="java" 86 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 87 | 88 | Please set the JAVA_HOME variable in your environment to match the 89 | location of your Java installation." 90 | fi 91 | 92 | # Increase the maximum file descriptors if we can. 93 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 94 | MAX_FD_LIMIT=`ulimit -H -n` 95 | if [ $? -eq 0 ] ; then 96 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 97 | MAX_FD="$MAX_FD_LIMIT" 98 | fi 99 | ulimit -n $MAX_FD 100 | if [ $? -ne 0 ] ; then 101 | warn "Could not set maximum file descriptor limit: $MAX_FD" 102 | fi 103 | else 104 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 105 | fi 106 | fi 107 | 108 | # For Darwin, add options to specify how the application appears in the dock 109 | if $darwin; then 110 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 111 | fi 112 | 113 | # For Cygwin, switch paths to Windows format before running java 114 | if $cygwin ; then 115 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 116 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 158 | function splitJvmOpts() { 159 | JVM_OPTS=("$@") 160 | } 161 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 162 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 163 | 164 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 165 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/android/eddystonescanner/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.example.android.eddystonescanner; 2 | 3 | import android.app.ListActivity; 4 | import android.bluetooth.BluetoothAdapter; 5 | import android.bluetooth.BluetoothManager; 6 | import android.content.ComponentName; 7 | import android.content.Intent; 8 | import android.content.ServiceConnection; 9 | import android.content.pm.PackageManager; 10 | import android.os.Bundle; 11 | import android.os.Handler; 12 | import android.os.IBinder; 13 | import android.util.Log; 14 | import android.widget.ArrayAdapter; 15 | import android.widget.Toast; 16 | 17 | import java.util.ArrayList; 18 | 19 | 20 | public class MainActivity extends ListActivity implements 21 | ServiceConnection, EddystoneScannerService.OnBeaconEventListener { 22 | private static final String TAG = MainActivity.class.getSimpleName(); 23 | 24 | private static final int EXPIRE_TIMEOUT = 5000; 25 | private static final int EXPIRE_TASK_PERIOD = 1000; 26 | 27 | private EddystoneScannerService mService; 28 | private ArrayAdapter mAdapter; 29 | private ArrayList mAdapterItems; 30 | 31 | @Override 32 | protected void onCreate(Bundle savedInstanceState) { 33 | super.onCreate(savedInstanceState); 34 | mAdapterItems = new ArrayList<>(); 35 | mAdapter = new ArrayAdapter<>(this, 36 | android.R.layout.simple_list_item_1, 37 | mAdapterItems); 38 | 39 | setListAdapter(mAdapter); 40 | } 41 | 42 | @Override 43 | protected void onResume() { 44 | super.onResume(); 45 | if (checkBluetoothStatus()) { 46 | Intent intent = new Intent(this, EddystoneScannerService.class); 47 | bindService(intent, this, BIND_AUTO_CREATE); 48 | 49 | mHandler.post(mPruneTask); 50 | } 51 | } 52 | 53 | @Override 54 | protected void onPause() { 55 | super.onPause(); 56 | mHandler.removeCallbacks(mPruneTask); 57 | 58 | mService.setBeaconEventListener(null); 59 | unbindService(this); 60 | } 61 | 62 | /* This task checks for beacons we haven't seen in awhile */ 63 | private Handler mHandler = new Handler(); 64 | private Runnable mPruneTask = new Runnable() { 65 | @Override 66 | public void run() { 67 | final ArrayList expiredBeacons = new ArrayList<>(); 68 | final long now = System.currentTimeMillis(); 69 | for (SampleBeacon beacon : mAdapterItems) { 70 | long delta = now - beacon.lastDetectedTimestamp; 71 | if (delta >= EXPIRE_TIMEOUT) { 72 | expiredBeacons.add(beacon); 73 | } 74 | } 75 | 76 | if (!expiredBeacons.isEmpty()) { 77 | Log.d(TAG, "Found " + expiredBeacons.size() + " expired"); 78 | mAdapterItems.removeAll(expiredBeacons); 79 | mAdapter.notifyDataSetChanged(); 80 | } 81 | 82 | mHandler.postDelayed(this, EXPIRE_TASK_PERIOD); 83 | } 84 | }; 85 | 86 | /* Verify Bluetooth Support */ 87 | private boolean checkBluetoothStatus() { 88 | BluetoothManager manager = 89 | (BluetoothManager) getSystemService(BLUETOOTH_SERVICE); 90 | BluetoothAdapter adapter = manager.getAdapter(); 91 | /* 92 | * We need to enforce that Bluetooth is first enabled, and take the 93 | * user to settings to enable it if they have not done so. 94 | */ 95 | if (adapter == null || !adapter.isEnabled()) { 96 | //Bluetooth is disabled 97 | Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); 98 | startActivity(enableBtIntent); 99 | finish(); 100 | return false; 101 | } 102 | 103 | /* 104 | * Check for Bluetooth LE Support. In production, our manifest entry will keep this 105 | * from installing on these devices, but this will allow test devices or other 106 | * sideloads to report whether or not the feature exists. 107 | */ 108 | if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) { 109 | Toast.makeText(this, "No LE Support.", Toast.LENGTH_SHORT).show(); 110 | finish(); 111 | return false; 112 | } 113 | 114 | return true; 115 | } 116 | 117 | /* Handle connection events to the discovery service */ 118 | @Override 119 | public void onServiceConnected(ComponentName name, IBinder service) { 120 | Log.d(TAG, "Connected to scanner service"); 121 | mService = ((EddystoneScannerService.LocalBinder) service).getService(); 122 | mService.setBeaconEventListener(this); 123 | } 124 | 125 | @Override 126 | public void onServiceDisconnected(ComponentName name) { 127 | Log.d(TAG, "Disconnected from scanner service"); 128 | mService = null; 129 | } 130 | 131 | /* Handle callback events from the discovery service */ 132 | @Override 133 | public void onBeaconIdentifier(String deviceAddress, int rssi, String instanceId) { 134 | final long now = System.currentTimeMillis(); 135 | for (SampleBeacon item : mAdapterItems) { 136 | if (instanceId.equals(item.id)) { 137 | //Already have this one, make sure device info is up to date 138 | item.update(deviceAddress, rssi, now); 139 | mAdapter.notifyDataSetChanged(); 140 | return; 141 | } 142 | } 143 | 144 | //New beacon, add it 145 | SampleBeacon beacon = 146 | new SampleBeacon(deviceAddress, rssi, instanceId, now); 147 | mAdapterItems.add(beacon); 148 | mAdapter.notifyDataSetChanged(); 149 | } 150 | 151 | @Override 152 | public void onBeaconTelemetry(String deviceAddress, float battery, float temperature) { 153 | for (SampleBeacon item : mAdapterItems) { 154 | if (deviceAddress.equals(item.deviceAddress)) { 155 | //Found it, update voltage 156 | item.battery = battery; 157 | item.temperature = temperature; 158 | mAdapter.notifyDataSetChanged(); 159 | return; 160 | } 161 | } 162 | } 163 | } 164 | -------------------------------------------------------------------------------- /app/src/main/java/com/example/android/eddystonescanner/EddystoneScannerService.java: -------------------------------------------------------------------------------- 1 | package com.example.android.eddystonescanner; 2 | 3 | import android.app.Service; 4 | import android.bluetooth.BluetoothManager; 5 | import android.bluetooth.le.BluetoothLeScanner; 6 | import android.bluetooth.le.ScanCallback; 7 | import android.bluetooth.le.ScanFilter; 8 | import android.bluetooth.le.ScanResult; 9 | import android.bluetooth.le.ScanSettings; 10 | import android.content.Intent; 11 | import android.os.Binder; 12 | import android.os.Handler; 13 | import android.os.IBinder; 14 | import android.os.Looper; 15 | import android.os.ParcelUuid; 16 | import android.util.Log; 17 | 18 | import java.util.ArrayList; 19 | import java.util.List; 20 | 21 | 22 | public class EddystoneScannerService extends Service { 23 | private static final String TAG = 24 | EddystoneScannerService.class.getSimpleName(); 25 | 26 | // …if you feel like making the log a bit noisier… 27 | private static boolean DEBUG_SCAN = false; 28 | 29 | // Eddystone service uuid (0xfeaa) 30 | private static final ParcelUuid UID_SERVICE = 31 | ParcelUuid.fromString("0000feaa-0000-1000-8000-00805f9b34fb"); 32 | 33 | // Default namespace id for KST Eddystone beacons (d89bed6e130ee5cf1ba1) 34 | private static final byte[] NAMESPACE_FILTER = { 35 | 0x00, //Frame type 36 | 0x00, //TX power 37 | (byte)0xd8, (byte)0x9b, (byte)0xed, (byte)0x6e, (byte)0x13, 38 | (byte)0x0e, (byte)0xe5, (byte)0xcf, (byte)0x1b, (byte)0xa1, 39 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 40 | }; 41 | 42 | // Force frame type and namespace id to match 43 | private static final byte[] NAMESPACE_FILTER_MASK = { 44 | (byte)0xFF, 45 | 0x00, 46 | (byte)0xFF, (byte)0xFF, (byte)0xFF, (byte)0xFF, (byte)0xFF, 47 | (byte)0xFF, (byte)0xFF, (byte)0xFF, (byte)0xFF, (byte)0xFF, 48 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 49 | }; 50 | 51 | private static final byte[] TLM_FILTER = { 52 | 0x20, //Frame type 53 | 0x00, //Protocol version = 0 54 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 55 | 0x00, 0x00 56 | }; 57 | 58 | // Force frame type and protocol to match 59 | private static final byte[] TLM_FILTER_MASK = { 60 | (byte)0xFF, 61 | (byte)0xFF, 62 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 63 | 0x00, 0x00 64 | }; 65 | 66 | // Eddystone frame types 67 | private static final byte TYPE_UID = 0x00; 68 | private static final byte TYPE_URL = 0x10; 69 | private static final byte TYPE_TLM = 0x20; 70 | 71 | //Callback interface for the UI 72 | public interface OnBeaconEventListener { 73 | void onBeaconIdentifier(String deviceAddress, int rssi, String instanceId); 74 | void onBeaconTelemetry(String deviceAddress, float battery, float temperature); 75 | } 76 | 77 | private BluetoothLeScanner mBluetoothLeScanner; 78 | private OnBeaconEventListener mBeaconEventListener; 79 | 80 | @Override 81 | public void onCreate() { 82 | super.onCreate(); 83 | 84 | BluetoothManager manager = 85 | (BluetoothManager) getSystemService(BLUETOOTH_SERVICE); 86 | mBluetoothLeScanner = manager.getAdapter().getBluetoothLeScanner(); 87 | 88 | startScanning(); 89 | } 90 | 91 | @Override 92 | public void onDestroy() { 93 | super.onDestroy(); 94 | 95 | stopScanning(); 96 | } 97 | 98 | public void setBeaconEventListener(OnBeaconEventListener listener) { 99 | mBeaconEventListener = listener; 100 | } 101 | 102 | /* Using as a bound service to allow event callbacks */ 103 | private LocalBinder mBinder = new LocalBinder(); 104 | public class LocalBinder extends Binder { 105 | public EddystoneScannerService getService() { 106 | return EddystoneScannerService.this; 107 | } 108 | } 109 | 110 | @Override 111 | public IBinder onBind(Intent intent) { 112 | return mBinder; 113 | } 114 | 115 | /* Being scanning for Eddystone advertisers */ 116 | private void startScanning() { 117 | ScanFilter beaconFilter = new ScanFilter.Builder() 118 | .setServiceUuid(UID_SERVICE) 119 | .setServiceData(UID_SERVICE, NAMESPACE_FILTER, NAMESPACE_FILTER_MASK) 120 | .build(); 121 | 122 | ScanFilter telemetryFilter = new ScanFilter.Builder() 123 | .setServiceUuid(UID_SERVICE) 124 | .setServiceData(UID_SERVICE, TLM_FILTER, TLM_FILTER_MASK) 125 | .build(); 126 | 127 | List filters = new ArrayList<>(); 128 | filters.add(beaconFilter); 129 | filters.add(telemetryFilter); 130 | 131 | ScanSettings settings = new ScanSettings.Builder() 132 | .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY) 133 | .build(); 134 | 135 | mBluetoothLeScanner.startScan(filters, settings, mScanCallback); 136 | if (DEBUG_SCAN) Log.d(TAG, "Scanning started…"); 137 | } 138 | 139 | /* Terminate scanning */ 140 | private void stopScanning() { 141 | mBluetoothLeScanner.stopScan(mScanCallback); 142 | if (DEBUG_SCAN) Log.d(TAG, "Scanning stopped…"); 143 | } 144 | 145 | /* Handle UID packet discovery on the main thread */ 146 | private void processUidPacket(String deviceAddress, int rssi, String id) { 147 | if (DEBUG_SCAN) { 148 | Log.d(TAG, "Eddystone(" + deviceAddress + ") id = " + id); 149 | } 150 | 151 | if (mBeaconEventListener != null) { 152 | mBeaconEventListener 153 | .onBeaconIdentifier(deviceAddress, rssi, id); 154 | } 155 | } 156 | 157 | /* Handle TLM packet discovery on the main thread */ 158 | private void processTlmPacket(String deviceAddress, float battery, float temp) { 159 | if (DEBUG_SCAN) { 160 | Log.d(TAG, "Eddystone(" + deviceAddress + ") battery = " + battery 161 | + ", temp = " + temp); 162 | } 163 | 164 | if (mBeaconEventListener != null) { 165 | mBeaconEventListener 166 | .onBeaconTelemetry(deviceAddress, battery, temp); 167 | } 168 | } 169 | 170 | /* Process each unique BLE scan result */ 171 | private ScanCallback mScanCallback = new ScanCallback() { 172 | private Handler mCallbackHandler = 173 | new Handler(Looper.getMainLooper()); 174 | 175 | @Override 176 | public void onScanResult(int callbackType, ScanResult result) { 177 | processResult(result); 178 | } 179 | 180 | @Override 181 | public void onScanFailed(int errorCode) { 182 | Log.w(TAG, "Scan Error Code: " + errorCode); 183 | } 184 | 185 | @Override 186 | public void onBatchScanResults(List results) { 187 | for (ScanResult result : results) { 188 | processResult(result); 189 | } 190 | } 191 | 192 | private void processResult(ScanResult result) { 193 | byte[] data = result.getScanRecord().getServiceData(UID_SERVICE); 194 | if (data == null) { 195 | Log.w(TAG, "Invalid Eddystone scan result."); 196 | return; 197 | } 198 | 199 | final String deviceAddress = result.getDevice().getAddress(); 200 | final int rssi = result.getRssi(); 201 | byte frameType = data[0]; 202 | switch (frameType) { 203 | case TYPE_UID: 204 | final String id = SampleBeacon.getInstanceId(data); 205 | 206 | mCallbackHandler.post(new Runnable() { 207 | @Override 208 | public void run() { 209 | processUidPacket(deviceAddress, rssi, id); 210 | } 211 | }); 212 | break; 213 | case TYPE_TLM: 214 | //Parse out battery voltage 215 | final float battery = SampleBeacon.getTlmBattery(data); 216 | final float temp = SampleBeacon.getTlmTemperature(data); 217 | mCallbackHandler.post(new Runnable() { 218 | @Override 219 | public void run() { 220 | processTlmPacket(deviceAddress, battery, temp); 221 | } 222 | }); 223 | break; 224 | case TYPE_URL: 225 | //Do nothing, ignoring these 226 | return; 227 | default: 228 | Log.w(TAG, "Invalid Eddystone scan result."); 229 | } 230 | } 231 | }; 232 | } 233 | --------------------------------------------------------------------------------