fixed issue 17

.gitignore

@@ -1,6 +1,51 @@
-.gradle
+# Crashlytics configuations
+com_crashlytics_export_strings.xml
+
+# Generated files
+.gradle/
+build/
+bin/
+gen/
+out/
+*.apk
+*.ap_
+
+# Local configuration file (sdk path, etc)
 /local.properties
-/.idea/workspace.xml
-/.idea/libraries
+
+# Signing files
+.signing/
+
+# User-specific configurations
+.idea/libraries/
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/.name
+.idea/compiler.xml
+.idea/copyright/profiles_settings.xml
+.idea/encodings.xml
+.idea/misc.xml
+.idea/modules.xml
+.idea/scopes/scope_settings.xml
+.idea/vcs.xml
+.idea/caches/
+.idea/codeStyles/
+.idea/shelf/
+
+# OS-specific files
 .DS_Store
-/build
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Google Services (e.g. APIs or Firebase)
+app/google-services.json

.travis.yml

@@ -0,0 +1,110 @@
+language: android
+env:
+  global:
+    - ANDROID_API=29
+    - EMULATOR_API=24
+    - ANDROID_BUILD_TOOLS=29.0.2
+
+before_cache:
+  - rm -f $HOME/.gradle/caches/modules-2/modules-2.lock
+  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
+cache:
+  directories:
+    - $HOME/.m2
+    - $HOME/.gradle/caches/
+    - $HOME/.gradle/wrapper/
+    - $HOME/.android/build-cache
+
+android:
+  components:
+    - tools
+    - android-$EMULATOR_API
+    - platform-tools
+    - tools
+    - build-tools-$ANDROID_BUILD_TOOLS
+    - android-$ANDROID_API
+    - extra-android-support
+    - extra-android-m2repository
+    - extra-google-m2repository
+    - sys-img-armeabi-v7a-android-$EMULATOR_API
+  licenses:
+    - ".+"
+
+before_install:
+  - yes | sdkmanager "platforms;android-28"
+
+# Emulator Management: Update SDK, Create, Start and Wait
+before_script:
+  - echo "y" | android update sdk -a --no-ui --filter android-$EMULATOR_API
+  - echo "y" | android update sdk -a --no-ui --filter sys-img-armeabi-v7a-android-$EMULATOR_API
+  - android list targets | grep -E '^id:' | awk -F '"' '{$1=""; print $2}' # list all targets
+  - echo no | android create avd --force -n test -t android-$EMULATOR_API --abi armeabi-v7a
+  - emulator -avd test -no-skin -no-window &
+  - android-wait-for-emulator
+  - adb shell input keyevent 82 &
+  - adb wait-for-device get-serialno
+  - cd ${TRAVIS_BUILD_DIR}
+  - chmod +x gradlew
+  - ./gradlew --version
+  - ./gradlew clean
+
+script:
+  - |
+    ./gradlew build assembleAndroidTest -PtestCoverageEnabled='true'
+    retval=$?
+    if [ $retval -ne 0 ]; then
+      echo "error on assembling, exit code: "$retval
+      exit $retval
+    fi
+
+# See https://stackoverflow.com/q/21294945/1429387
+# Instead of this (which doesn't give any output during tests execution):
+# - ./gradlew connectedCheck -PdisablePreDex --continue --stacktrace --debug
+# run:
+  - |
+    ./gradlew :app:installDebug :app:installDebugAndroidTest -PtestCoverageEnabled='true'
+    retval=$?
+    if [ $retval -ne 0 ]; then
+      echo "error on install, exit code: "$retval
+      exit $retval
+    fi
+
+#
+# Run only tests, marked with a special annotation:
+# See https://d.android.com/reference/android/support/test/runner/AndroidJUnitRunner
+# For testing one method only:
+# - adb shell am instrument -w -r -e debug false -e coverage true -e class by.naxa.soundrecorder.MainActivityTests#testGreet by.naxa.soundrecorder/androidx.test.runner.AndroidJUnitRunner
+  - adb shell pm list instrumentation
+  - |
+    adb shell am instrument -w -r -e executionMode travisTest -e coverage true by.naxa.soundrecorder.test/androidx.test.runner.AndroidJUnitRunner |& tee build/adb-test.log
+    retval=$?
+    if [ $retval -ne 0 ]; then
+      echo "error in adb, exit code: "$retval
+      exit $retval
+    fi
+
+# adb doesn't propagate exit code from tests, see https://code.google.com/p/android/issues/detail?id=3254
+# So we need to parse saved terminal log
+  - |
+    cat build/adb-test.log | grep "INSTRUMENTATION_STATUS: stack=" | grep -v "org.junit.AssumptionViolatedException"
+    if [ $? -eq 0 ]; then
+      echo "Test failure found"
+      exit 1
+    else
+      cat build/adb-test.log | grep "OK ("
+    fi
+
+# Copy coverage data from the emulator
+  - |
+    adb shell "rm /sdcard/Download/coverage.ec"
+    adb shell "run-as by.naxa.soundrecorder cp /data/user/0/by.naxa.soundrecorder/files/coverage.ec /sdcard/Download"
+# copy to "build" folder, where it will be found by Sonar scanner
+  - cd app/build
+  - adb pull "/sdcard/Download/coverage.ec"
+  - cd ../..
+
+notifications:
+  email: false
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

CONTRIBUTING.md

@@ -0,0 +1,66 @@
+# Contributing
+
+Contributors are more than welcome. How can you contribute?
+
+### Report bugs
+
+We want our app to be as stable as possible thus your bug reports are immensely valuable. File [GitHub Issues](https://github.com/naXa777/SoundRecorder/issues) for anything that is unexpectedly broken.
+
+* App version
+* Device model
+* Android version
+* Steps to reproduce the bug
+* Expected behavior
+* Actual behavior (a screenshot and/or log file may be helpful)
+
+### Contribute Code [![Open Source Helpers](https://www.codetriage.com/naxa777/soundrecorder/badges/users.svg)](https://www.codetriage.com/naxa777/soundrecorder)
+
+We have labeled tasks you can help with as [![GitHub issues by-label](https://img.shields.io/github/issues/naXa777/SoundRecorder/help%20wanted.svg)](https://github.com/naXa777/SoundRecorder/issues?q=is%3Aissue+is%3Aopen+label%3A%22help+wanted%22) and [![GitHub issues by-label](https://img.shields.io/github/issues/naXa777/SoundRecorder/good%20first%20issue.svg)](https://github.com/naXa777/SoundRecorder/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22). Just pick up an issue that you're interested in and start coding. If you have a great idea you really want to implement, start by logging an issue for us. We'll let you know if it fits with our product direction and then you can start development. When you're ready open a Pull Request with a description of your changes.
+
+See [Git Essentials](#git-essentials) for a simple bugfix workflow.
+
+### Translate
+
+You don't have to be a programmer if you want to translate this application in your own language or improve existing translations.
+You can translate SoundRecorder using [POEditor](https://poeditor.com/join/project/IuPsne4VcJ) - a collaborative translation platform.
+
+[![POEditor](https://poeditor.com/public/images/logo_small.png)](https://poeditor.com/join/project/IuPsne4VcJ)
+
+### Automate Testing
+
+Testing is imperative to the health of the project. There's a configured CI pipeline ([Travis CI](https://travis-ci.com/naXa777/SoundRecorder)) intended for running unit tests and instrumented tests on every commit to the repository, but unfortunately, there're very few tests at the moment.
+
+Please follow standard guidelines if you want to contribute a test:
+
+1. Android Developers - [Test apps on Android](https://d.android.com/training/testing/)
+2. Android Studio - [Test your app](https://d.android.com/studio/test/)
+3. GitHub - [Android testing samples](https://github.com/googlesamples/android-testing)
+
+
+## Git Essentials
+
+Workflows can vary, but here is a very simple workflow for contributing a bug fix:
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) the repository.
+
+2. Clone the fork:
+
+       $ git clone git@github.com:YOUR_USERNAME/SoundRecorder.git
+       $ git remote add upstream https://github.com/naXa777/SoundRecorder.git
+
+    Read why do you need to [Configure a remote](https://help.github.com/articles/configuring-a-remote-for-a-fork/) if you're interested.
+
+3. Prepare a feature branch:
+
+       $ git checkout -b issue-123-keyword master
+
+4. Do development and then commit your changes:
+
+       $ git commit -m "fix #123 - Description of what I had changed"
+       $ git push
+
+    A quick note: See Chris Beams' guide to writing good commit messages - [How to Write a Git Commit Message](https://chris.beams.io/posts/git-commit/).
+
+5. Open a pull request.
+
+   Read [Creating a pull request from a fork](https://help.github.com/articles/creating-a-pull-request-from-a-fork/) for details.