Export works!

.idea/misc.xml

@@ -5,7 +5,7 @@
       <configuration PROFILE_NAME="Debug" CONFIG_NAME="Debug" />
     </configurations>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

app/build.gradle

@@ -36,7 +36,9 @@ dependencies {
     implementation 'android.arch.persistence.room:runtime:1.1.1'
     annotationProcessor 'android.arch.persistence.room:compiler:1.1.1'
     kapt 'android.arch.persistence.room:compiler:1.1.1'
-//    implementation 'android.arch.lifecycle:extensions:1.1.1'
+
+    implementation 'com.opencsv:opencsv:4.0'
+//    implementation 'android.arch.lifecycle:excompile 'com.opencsv:opencsv:4.0'tensions:1.1.1'
 //    kapt 'android.arch.lifecycle:compiler:1.1.1'
 
     testImplementation 'junit:junit:4.12'

app/src/main/AndroidManifest.xml

@@ -6,6 +6,7 @@
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 
 
     <application

app/src/main/java/co/zzyzx/sensorlogger/MainActivity.kt

@@ -1,13 +1,14 @@
 package co.zzyzx.sensorlogger
 
-//import co.zzyzx.sensorlogger.db.RecordDatabase
 import android.Manifest
+import android.app.ActivityManager
 import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
 import android.location.LocationManager
 import android.os.Build
 import android.os.Bundle
+import android.os.Environment
 import android.os.Handler
 import android.support.v4.app.ActivityCompat
 import android.support.v4.content.ContextCompat
@@ -15,10 +16,17 @@ import android.support.v7.app.AppCompatActivity
 import android.view.View
 import android.widget.Toast
 import co.zzyzx.sensorlogger.db.RecordRepository
+import com.opencsv.CSVWriter
 import kotlinx.android.synthetic.main.activity_main.*
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
+import java.io.File
+import java.io.FileWriter
+import java.time.Instant
 
 
 const val PERMISSION_LOCATION = 0
+const val WRITE_EXTERNAL_STORAGE = 1
 
 class MainActivity : AppCompatActivity(),
     ActivityCompat.OnRequestPermissionsResultCallback {
@@ -60,8 +68,122 @@ class MainActivity : AppCompatActivity(),
             }
         }
 
+        reset_record_btn.let {
+            it.setOnClickListener {
+                recRepo.resetAllData()
+            }
+        }
+
+        export_record_btn.let {
+            it.setOnClickListener {
+                log("exporting something")
+
+                actionOnService(Actions.STOP)
+                if (ContextCompat.checkSelfPermission(
+                        applicationContext,
+                        Manifest.permission.WRITE_EXTERNAL_STORAGE
+                    )
+                    != PackageManager.PERMISSION_GRANTED
+                ) {
+                    val perms = arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+                    ActivityCompat.requestPermissions(
+                        this, perms,
+                        WRITE_EXTERNAL_STORAGE
+                    )
+                } else {
+                    GlobalScope.launch {
+                        exportToCSV()
+                        recRepo.resetAllData()
+                    }
+                }
+            }
+        }
+
         updateCounter()
 
+        if (isMyServiceRunning(EndlessService::class.java)) {
+            start_service_btn.visibility = View.GONE
+            stop_service_btn.visibility = View.VISIBLE
+        } else {
+            start_service_btn.visibility = View.VISIBLE
+            stop_service_btn.visibility = View.GONE
+        }
+    }
+
+    private fun exportToCSV() {
+        val outputPath =
+            Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)
+        var epochSec = Instant.now().epochSecond
+        val acceleroFileName = "SensorLogger-${epochSec}-accelero.csv"
+        val gyroFileName = "SensorLogger-${epochSec}-gyro.csv"
+        var writerAccelero = CSVWriter(FileWriter("$outputPath${File.separator}$acceleroFileName"))
+        var writerGyro = CSVWriter(FileWriter("$outputPath${File.separator}$gyroFileName"))
+
+        writerAccelero.writeNext(
+            arrayOf(
+                "timestamp",
+                "lat",
+                "lon",
+                "speed",
+                "gps_timestamp",
+                "accel-x",
+                "accel-y",
+                "accel-z"
+            )
+        )
+        writerGyro.writeNext(
+            arrayOf(
+                "timestamp",
+                "lat",
+                "lon",
+                "speed",
+                "gps_timestamp",
+                "gyro-x",
+                "gyro-y",
+                "gyro-z"
+            )
+        )
+
+
+        val records = recRepo.getAll()
+        var lat = ""
+        var lon = ""
+        var speed = ""
+        var time = ""
+        for (rec in records) {
+            if (rec.sensor == "location") {
+                val one = rec.data?.split(",") as List<String>
+                /*
+                    result.time,
+                    result.longitude.format(7),
+                    result.latitude.format(7),
+                    result.speed,
+                    result.altitude,
+                    result.bearing,
+                    result.accuracy,
+                    result.provider,
+                    result.isFromMockProvider
+                 */
+                if (one.size != 0) {
+                    time = one[0]
+                    lon = one[1]
+                    lat = one[2]
+                    speed = one[3]
+                }
+            } else if (rec.sensor == "accelerometer") {
+                val data = rec.data?.split(",") as List<String>
+                val row =
+                    arrayOf("${rec.timestamp}", lat, lon, speed, time, data[0], data[1], data[2])
+                writerAccelero.writeNext(row)
+            } else if (rec.sensor == "gyroscope") {
+                val data = rec.data?.split(",") as List<String>
+                val row =
+                    arrayOf("${rec.timestamp}", lat, lon, speed, time, data[0], data[1], data[2])
+                writerGyro.writeNext(row)
+            }
+        }
+        writerAccelero.close()
+        writerGyro.close()
     }
 
     private fun updateCounter() {
@@ -79,7 +201,6 @@ class MainActivity : AppCompatActivity(),
             reset_record_btn.visibility = View.VISIBLE
             export_record_btn.visibility = View.VISIBLE
         } else {
-
             reset_record_btn.visibility = View.GONE
             export_record_btn.visibility = View.GONE
         }
@@ -91,8 +212,15 @@ class MainActivity : AppCompatActivity(),
     private fun UIStatusUpdates(hasLocPerm: Boolean = true) {
 
         val mLocationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager
-        log("isLocationEnabled? ${mLocationManager.isLocationEnabled} - ${mLocationManager.allProviders}")
-        if (hasLocPerm && mLocationManager.isLocationEnabled) {
+        val isLocationEnabled = (
+                Build.VERSION.SDK_INT < Build.VERSION_CODES.P || (
+                        Build.VERSION.SDK_INT >= Build.VERSION_CODES.P &&
+                                mLocationManager.isLocationEnabled)
+                )
+
+        log("isLocationEnabled? $isLocationEnabled - ${mLocationManager.allProviders}")
+
+        if (hasLocPerm && isLocationEnabled) {
             location_status_textview.text = "OK"
             location_status_textview.setBackgroundColor(
                 ContextCompat.getColor(
@@ -113,11 +241,11 @@ class MainActivity : AppCompatActivity(),
         }
     }
 
-    private fun requestForNecessaryPermissions() {
+    private fun requestForNecessaryPermissions(perm: String = Manifest.permission.ACCESS_FINE_LOCATION) {
         // Here, thisActivity is the current activity
         if (ContextCompat.checkSelfPermission(
                 this,
-                Manifest.permission.ACCESS_FINE_LOCATION
+                perm
             )
             != PackageManager.PERMISSION_GRANTED
         ) {
@@ -125,14 +253,13 @@ class MainActivity : AppCompatActivity(),
             // Should we show an explanation?
             if (ActivityCompat.shouldShowRequestPermissionRationale(
                     this,
-                    Manifest.permission.ACCESS_FINE_LOCATION
+                    perm
                 )
             ) {
-                val perms = arrayOf(Manifest.permission.ACCESS_FINE_LOCATION)
-                ActivityCompat.requestPermissions(
-                    this, perms,
-                    PERMISSION_LOCATION
-                )
+                val perms = arrayOf(perm)
+                val permResult =
+                    if (perm == Manifest.permission.ACCESS_FINE_LOCATION) PERMISSION_LOCATION else WRITE_EXTERNAL_STORAGE
+                ActivityCompat.requestPermissions(this, perms, permResult)
             }
             UIStatusUpdates(false)
         } else {
@@ -144,6 +271,16 @@ class MainActivity : AppCompatActivity(),
 
     }
 
+    private fun isMyServiceRunning(serviceClass: Class<*>): Boolean {
+        val manager = getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager
+        for (service in manager.getRunningServices(Integer.MAX_VALUE)) {
+            if (serviceClass.name == service.service.className) {
+                return true
+            }
+        }
+        return false
+    }
+
     private fun actionOnService(action: Actions) {
         when (action) {
             Actions.START -> {
@@ -185,6 +322,15 @@ class MainActivity : AppCompatActivity(),
                 )
                 UIStatusUpdates(hasPerm)
             }
+            WRITE_EXTERNAL_STORAGE -> {
+                val hasPerm = grantResult[0] == PackageManager.PERMISSION_GRANTED
+                Toast.makeText(
+                    applicationContext,
+                    "${if (hasPerm) "Good" else "Bad"} Permission for storage",
+                    Toast.LENGTH_LONG
+                )
+                // UIStatusUpdates(hasPerm)
+            }
         }
     }
 }

app/src/main/java/co/zzyzx/sensorlogger/db/Database.kt

@@ -40,4 +40,12 @@ class RecordRepository {
         return dao.getCount(sensor)
     }
 
+    fun getAll(): List<Record> {
+        return dao.getAll()
+    }
+
+    fun resetAllData() {
+        dao.nukeTable()
+    }
+
 }

app/src/main/java/co/zzyzx/sensorlogger/db/dao.kt

@@ -8,7 +8,7 @@ interface RecordDao {
     @Query("SELECT COUNT(*) FROM record WHERE sensor = :sensor")
     fun getCount(sensor: String): Int
 
-    @Query("SELECT * FROM record")
+    @Query("SELECT * FROM record ORDER BY timestamp ASC")
     fun getAll(): List<Record>
 
     @Query("SELECT * FROM record WHERE sensor LIKE :sensor ORDER BY timestamp DESC LIMIT 1")
@@ -26,4 +26,7 @@ interface RecordDao {
 
     @Delete
     fun delete(record: Record)
+
+    @Query("DELETE FROM record")
+    fun nukeTable()
 }