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AryanNajafiAryanNajafi
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‎.gitignore‎

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*.iml
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.gradle
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.idea
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/local.properties
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/.idea/caches/build_file_checksums.ser
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/.idea/libraries
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/.idea/modules.xml
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/.idea/workspace.xml
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.DS_Store
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/build
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/captures
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.externalNativeBuild

‎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 28
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defaultConfig {
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applicationId "com.github.sensorsreport"
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minSdkVersion 19
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targetSdkVersion 28
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versionCode 1
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versionName "1.0.0"
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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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compileOptions {
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sourceCompatibility JavaVersion.VERSION_1_8
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targetCompatibility JavaVersion.VERSION_1_8
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}
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dataBinding {
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enabled = true
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}
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}
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dependencies {
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implementation fileTree(dir: 'libs', include: ['*.jar'])
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implementation 'com.android.support:appcompat-v7:28.0.0'
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implementation 'com.android.support:cardview-v7:28.0.0'
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implementation "android.arch.lifecycle:extensions:1.1.1"
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implementation "android.arch.persistence.room:runtime:1.1.1"
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implementation 'com.google.code.gson:gson:2.8.5'
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annotationProcessor "android.arch.persistence.room:compiler:1.1.1"
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}

‎app/proguard-rules.pro‎

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting 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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# 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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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎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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xmlns:tools="http://schemas.android.com/tools"
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package="com.github.sensorsreport">
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<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
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<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
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<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
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<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
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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:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/AppTheme"
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tools:ignore="AllowBackup,GoogleAppIndexingWarning">
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<activity android:name=".MainActivity">
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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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</activity>
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<service
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android:name=".service.ReportService"
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android:exported="false" />
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</application>
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</manifest>

‎app/src/main/java/com/github/sensorsreport/BindingAdapters.java‎

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package com.github.sensorsreport;
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import android.databinding.BindingAdapter;
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import android.support.v7.widget.AppCompatSpinner;
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public class BindingAdapters {
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@BindingAdapter("spinnerEnabled")
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public static void enabled(AppCompatSpinner spinner, boolean enabled) {
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spinner.setEnabled(enabled);
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}
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}

‎app/src/main/java/com/github/sensorsreport/MainActivity.java‎

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package com.github.sensorsreport;
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import android.Manifest;
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import android.arch.lifecycle.ViewModelProviders;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.content.pm.PackageManager;
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import android.databinding.DataBindingUtil;
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import android.os.Bundle;
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import android.os.Environment;
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import android.preference.PreferenceManager;
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import android.support.annotation.NonNull;
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import android.support.v4.app.ActivityCompat;
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import android.support.v4.content.ContextCompat;
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import android.support.v7.app.AppCompatActivity;
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import android.view.View;
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import android.widget.AdapterView;
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import android.widget.ArrayAdapter;
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import android.widget.Toast;
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import com.github.sensorsreport.data.SensorData;
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import com.github.sensorsreport.data.db.AppDatabase;
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import com.github.sensorsreport.data.db.SensorDataDao;
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import com.github.sensorsreport.databinding.MainActivityBinding;
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import com.github.sensorsreport.service.ReportService;
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import com.google.gson.Gson;
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import com.google.gson.reflect.TypeToken;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.lang.reflect.Type;
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import java.util.List;
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import java.util.concurrent.Executor;
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import java.util.concurrent.Executors;
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public class MainActivity extends AppCompatActivity implements
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SharedPreferences.OnSharedPreferenceChangeListener {
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private static final String REPORT_REQUEST_TIME = "report_request_time";
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private static final String SELECTED_INTERVAL = "selected_interval";
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private static final String[] INTERVALS = {"200", "500", "700", "1000", "1500", "2000"};
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private MainActivityBinding binding;
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private MainViewModel viewModel;
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private SharedPreferences sharedPreferences;
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private Executor diskExecutor;
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private long reportStartTime = 0;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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binding = DataBindingUtil.setContentView(this, R.layout.activity_main);
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diskExecutor = Executors.newSingleThreadExecutor();
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requestPermissions();
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viewModel = ViewModelProviders.of(this).get(MainViewModel.class);
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viewModel.getDataReport().observe(this, sensorData -> binding.setData(sensorData));
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Intent reportServiceIntent =
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new Intent(MainActivity.this, ReportService.class);
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SensorDataDao sensorDataDao = AppDatabase.getDatabase(this).sensorDataDao();
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sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
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boolean reportRequested = sharedPreferences
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.getBoolean(ReportService.REQUESTING_REPORT, false);
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binding.setStarted(reportRequested);
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if (reportRequested) {
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reportStartTime = sharedPreferences
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.getLong(REPORT_REQUEST_TIME, System.currentTimeMillis());
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}
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Type listOfSensorData = new TypeToken<List<SensorData>>() {}.getType();
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binding.startButton.setOnClickListener(view -> {
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reportStartTime = System.currentTimeMillis();
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ContextCompat.startForegroundService(this, reportServiceIntent);
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sharedPreferences.edit().putLong(REPORT_REQUEST_TIME, reportStartTime).apply();
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});
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binding.stopButton.setOnClickListener(view -> {
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stopService(reportServiceIntent);
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if (!isExternalStorageWritable()) {
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Toast.makeText(this, "External storage is not available!",
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Toast.LENGTH_SHORT).show();
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} else {
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diskExecutor.execute(() -> {
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List<SensorData> dataList = sensorDataDao.getSensorsReport(reportStartTime);
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String json = new Gson().toJson(dataList, listOfSensorData);
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File file = new File(Environment.getExternalStoragePublicDirectory(
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Environment.DIRECTORY_DOWNLOADS),
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"sensors-report-" + reportStartTime + ".json");
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try {
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FileWriter fileWriter = new FileWriter(file);
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fileWriter.write(json);
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fileWriter.flush();
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fileWriter.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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});
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}
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});
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}
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@Override
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protected void onStart() {
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super.onStart();
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sharedPreferences.registerOnSharedPreferenceChangeListener(this);
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}
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@Override
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protected void onStop() {
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sharedPreferences.unregisterOnSharedPreferenceChangeListener(this);
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super.onStop();
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}
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private void requestPermissions() {
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ActivityCompat.requestPermissions(MainActivity.this,
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new String[]{Manifest.permission.ACCESS_FINE_LOCATION,
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Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1000);
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}
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public boolean isExternalStorageWritable() {
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String state = Environment.getExternalStorageState();
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if (Environment.MEDIA_MOUNTED.equals(state)) {
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return true;
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}
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return false;
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}
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@Override
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public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
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@NonNull int[] grantResults) {
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if (requestCode == 1000) {
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if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED &&
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grantResults[1] == PackageManager.PERMISSION_GRANTED) {
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binding.container.setEnabled(true);
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populateIntervalSpinner();
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} else {
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binding.container.setEnabled(false);
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}
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}
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super.onRequestPermissionsResult(requestCode, permissions, grantResults);
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}
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private void populateIntervalSpinner() {
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ArrayAdapter<String> adapter = new ArrayAdapter<>(this,
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android.R.layout.simple_spinner_dropdown_item, INTERVALS);
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binding.reportInterval.setAdapter(adapter);
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binding.reportInterval.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
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viewModel.setReportInterval(Long.parseLong(INTERVALS[i]));
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sharedPreferences.edit().putInt(SELECTED_INTERVAL, i).apply();
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}
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@Override
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public void onNothingSelected(AdapterView<?> adapterView) {
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}
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});
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binding.reportInterval.setSelection(sharedPreferences.getInt(SELECTED_INTERVAL, 0));
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}
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@Override
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public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String s) {
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if (s.equals(ReportService.REQUESTING_REPORT)) {
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binding.setStarted(sharedPreferences.getBoolean(s, false));
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}
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}
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}

‎app/src/main/java/com/github/sensorsreport/MainViewModel.java‎

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package com.github.sensorsreport;
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import android.app.Application;
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import android.arch.lifecycle.AndroidViewModel;
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import android.arch.lifecycle.LiveData;
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import android.arch.lifecycle.MutableLiveData;
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import android.arch.lifecycle.Transformations;
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import com.github.sensorsreport.data.SensorLiveData;
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import com.github.sensorsreport.data.SensorData;
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public class MainViewModel extends AndroidViewModel {
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private MutableLiveData<Long> reportInterval = new MutableLiveData<>();
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private final LiveData<SensorData> dataReport;
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public MainViewModel(Application application) {
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super(application);
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dataReport = Transformations.switchMap(reportInterval, input ->
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SensorLiveData.getInstance(application).reportInterval(input));
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}
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LiveData<SensorData> getDataReport() {
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return dataReport;
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}
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void setReportInterval(long reportInterval) {
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this.reportInterval.setValue(reportInterval);
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}
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}

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