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‎.gitignore

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# Created by https://www.gitignore.io/api/android,intellij
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### Android ###
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# Built application files
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*.apk
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*.ap_
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# Files for the ART/Dalvik VM
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*.dex
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# Java class files
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*.class
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# Generated files
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bin/
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gen/
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out/
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# Gradle files
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.gradle/
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build/
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# Local configuration file (sdk path, etc)
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local.properties
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# Proguard folder generated by Eclipse
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proguard/
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# Log Files
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*.log
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# Android Studio Navigation editor temp files
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.navigation/
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# Android Studio captures folder
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captures/
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# Intellij
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*.iml
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.idea/workspace.xml
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.idea/libraries
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# Keystore files
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*.jks
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### Android Patch ###
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gen-external-apklibs
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### Intellij ###
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# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
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# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
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# User-specific stuff:
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.idea/workspace.xml
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.idea/tasks.xml
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.idea/dictionaries
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.idea/vcs.xml
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.idea/jsLibraryMappings.xml
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# Sensitive or high-churn files:
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.idea/dataSources.ids
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.idea/dataSources.xml
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.idea/dataSources.local.xml
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.idea/sqlDataSources.xml
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.idea/dynamic.xml
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.idea/uiDesigner.xml
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# Gradle:
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.idea/gradle.xml
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.idea/libraries
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# Mongo Explorer plugin:
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.idea/mongoSettings.xml
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## File-based project format:
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*.iws
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## Plugin-specific files:
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# IntelliJ
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/out/
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# mpeltonen/sbt-idea plugin
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.idea_modules/
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# JIRA plugin
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atlassian-ide-plugin.xml
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# Crashlytics plugin (for Android Studio and IntelliJ)
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com_crashlytics_export_strings.xml
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crashlytics.properties
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crashlytics-build.properties
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fabric.properties
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### Intellij Patch ###
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# Comment Reason: https://github.com/joeblau/gitignore.io/issues/186#issuecomment-215987721
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# *.iml
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# modules.xml
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# .idea/misc.xml
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# *.ipr

‎.idea/.name

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‎.idea/compiler.xml

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‎.idea/copyright/profiles_settings.xml

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‎.idea/encodings.xml

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‎.idea/misc.xml

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‎.idea/modules.xml

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‎.idea/runConfigurations.xml

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‎LICENSE.txt

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MIT License
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Copyright (c) 2016 Tobias Trumm
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.

‎README.md

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# Android Raspberry Pi Keyboard
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© 2016 [Tobias Trumm](mailto:[email protected]) licensed under MIT license
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## Info
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Use your Android device as an USB keyboard on your Raspberry Pi (or other Linux devices).
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I wrote this app mainly because I wanted to learn how to communicate between Android and other devices over USB. Do not expect it to work flawlessly, not all keys will work. If you are looking for a simple way to control your Raspberry Pi from your Android device there are probably better solutions out there. Depending on the software keyboard on your Android device this app will work better or worse. I have got the best results using [Hacker's Keyboard](https://play.google.com/store/apps/details?id=org.pocketworkstation.pckeyboard).
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## Python Dependencies
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- [python-evdev](https://python-evdev.readthedocs.io/)
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- [pyusb](https://walac.github.io/pyusb/)
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- [pyudev](https://pyudev.readthedocs.io/)
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## Usage
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1. Install the app on your Android device and copy the python scripts from the `linux_client/` directory to your Raspberry Pi.
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2. Attach your Android device to your Raspberry Pi with an USB cable.
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3. Get the vendor ID of your Android device. Open a terminal and execute `lsusb`. You will see a list of USB devices with their vendor and product ID. The first 4 characters are the vendor ID.
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4. Start the `accessory.py` script with `sudo python accessory.py xxxx`. Replace `xxxx` with your vendor ID.
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5. A message asking for permission to use the USB connection should have appeared on your Android device. Accept it. Now you should be able to use your Android device as a keyboard.
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6. To exit the python script, use `Ctrl` + `c`

‎app/.gitignore

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/build

‎app/build.gradle

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apply plugin: 'com.android.application'
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android {
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compileSdkVersion 24
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buildToolsVersion "23.0.3"
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defaultConfig {
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applicationId "de.tobiastrumm.raspberrykeyboard"
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minSdkVersion 12
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targetSdkVersion 24
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versionCode 1
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versionName "1.0"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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compile fileTree(dir: 'libs', include: ['*.jar'])
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testCompile 'junit:junit:4.12'
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compile 'com.android.support:appcompat-v7:24.0.0'
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}

‎app/proguard-rules.pro

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# Add project specific ProGuard rules here.
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# By default, the flags in this file are appended to flags specified
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# in C:\Users\tobia_000\AppData\Local\Android\sdk/tools/proguard/proguard-android.txt
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# You can edit the include path and order by changing the proguardFiles
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# directive in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# Add any project specific keep options here:
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}

‎app/src/androidTest/java/de/tobiastrumm/raspberrykeyboard/ApplicationTest.java

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package de.tobiastrumm.raspberrykeyboard;
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import android.app.Application;
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import android.test.ApplicationTestCase;
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/**
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* <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
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*/
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public class ApplicationTest extends ApplicationTestCase<Application> {
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public ApplicationTest() {
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super(Application.class);
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}
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}

‎app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="de.tobiastrumm.raspberrykeyboard">
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<uses-feature android:name="android.hardware.usb.accessory" />
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity android:name=".MainActivity"
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android:windowSoftInputMode="stateVisible"
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android:launchMode="singleTop">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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<intent-filter>
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<action android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED" />
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</intent-filter>
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<meta-data android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED"
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android:resource="@xml/accessory_filter" />
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</activity>
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</application>
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</manifest>

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