add database and options to share and delete

app/src/main/java/org/tensorflow/lite/examples/soundclassifier/BirdDBHelper.java

@@ -0,0 +1,102 @@
+package org.tensorflow.lite.examples.soundclassifier;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import java.util.*;
+
+public class BirdDBHelper extends SQLiteOpenHelper {
+
+    // Database name and table columns
+    private static final String DB_NAME = "BirdDatabase.db";
+    private static final int DATABASE_VERSION = 1;
+    public static final String TABLE_NAME = "BirdObservations";
+    private static final String COLUMN_ID = "ID";
+    private static final String COLUMN_MILLIS = "TimeInMillis";
+    private static final String COLUMN_LATITUDE = "Latitude";
+    private static final String COLUMN_LONGITUDE = "Longitude";
+    private static final String COLUMN_NAME = "SpeciesName";
+    private static final String COLUMN_SPECIES_ID = "BirdNET_ID";
+    private static final String COLUMN_PROBABILITY = "Probability";
+    private static BirdDBHelper instance = null;
+
+    public BirdDBHelper(Context context) {
+        super(context, DB_NAME, null, DATABASE_VERSION);
+    }
+
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        // Create the table for bird observations with all columns and their data types.
+        String CREATE_TABLE = "CREATE TABLE IF NOT EXISTS "+TABLE_NAME+" (" +
+                COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," +
+                COLUMN_MILLIS + " LONG," +
+                COLUMN_LATITUDE + " FLOAT," +
+                COLUMN_LONGITUDE + " FLOAT," +
+                COLUMN_NAME + " TEXT," +
+                COLUMN_SPECIES_ID + " INTEGER," +
+                COLUMN_PROBABILITY + " FLOAT);";
+        db.execSQL(CREATE_TABLE);
+    }
+
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        // Drop the table and create it again if there's a version change in the database schema.
+        db.execSQL("DROP TABLE IF EXISTS "+TABLE_NAME);
+        this.onCreate(db);
+    }
+
+    public void addEntry(String name, float latitude, float longitude, int speciesId, float probability) {
+        // Insert a new row into the table with all columns and their values from parameters.
+        SQLiteDatabase db = getWritableDatabase();
+        ContentValues cv = new ContentValues();
+        cv.put(COLUMN_NAME, name);
+        cv.put(COLUMN_MILLIS, System.currentTimeMillis()); // time in milliseconds
+        cv.put(COLUMN_LATITUDE, latitude);
+        cv.put(COLUMN_LONGITUDE, longitude);
+        cv.put(COLUMN_SPECIES_ID, speciesId);
+        cv.put(COLUMN_PROBABILITY, probability);
+
+        db.insert(TABLE_NAME, null, cv); // Insert the row into the table with all columns and their values from parameters.
+    }
+
+    public void clearAllEntries() {
+        SQLiteDatabase db = getWritableDatabase();
+        String CLEAR_TABLE = "DELETE FROM "+ TABLE_NAME;
+
+        db.execSQL(CLEAR_TABLE); // Delete all rows in the table, effectively clearing it out.
+    }
+
+    public List<String> exportAllEntriesAsCSV() {
+        SQLiteDatabase db = getReadableDatabase();
+        String SELECT_ALL = "SELECT * FROM "+ TABLE_NAME;
+
+        Cursor cursor = db.rawQuery(SELECT_ALL, null); // Execute the query to select all rows from the table and store them in a cursor object for further processing.
+
+        List<String> csvDataList = new ArrayList<>(); // Create an empty list of strings that will hold each row's data as CSV formatted string.
+
+        if (cursor != null && cursor.moveToFirst()) { 
+            do {
+                long millis = cursor.getLong(1);        // time in milliseconds
+                float latitude = cursor.getFloat(2);    // latitude
+                float longitude = cursor.getFloat(3);   // longitude
+                String nameStr = cursor.getString(4);   // name of the bird species
+                int speciesId = cursor.getInt(5);       // id for the species in BirdNET
+                float probability = cursor.getFloat(6); // estimated probability that this observation is correct
+
+                String csvString = millis + "," + latitude + "," + longitude + "," + nameStr + "," + speciesId + "," + probability;
+
+                csvDataList.add(csvString);    
+            } while (cursor.moveToNext());
+            cursor.close();
+        }
+        return csvDataList;
+    }
+    public static BirdDBHelper getInstance(Context context) {
+        if (instance == null && context != null) {
+            instance = new BirdDBHelper(context.getApplicationContext());
+        }
+        return instance;
+    }
+}

app/src/main/java/org/tensorflow/lite/examples/soundclassifier/MainActivity.kt

@@ -18,6 +18,7 @@
 package org.tensorflow.lite.examples.soundclassifier
 
 import android.Manifest
+import android.content.Intent
 import android.content.pm.PackageManager
 import android.os.Bundle
 import android.view.ViewGroup
@@ -59,6 +60,24 @@ class MainActivity : AppCompatActivity() {
       if (binding.progressHorizontal.isIndeterminate) binding.progressHorizontal.setIndeterminate(false)
       else binding.progressHorizontal.setIndeterminate(true)
     }
+    binding.bottomNavigationView.setOnNavigationItemSelectedListener { item ->
+      when (item.itemId) {
+        R.id.action_share -> {
+          val database = BirdDBHelper.getInstance(this)
+          val intent = Intent(Intent.ACTION_SEND)
+          val shareBody = database.exportAllEntriesAsCSV().joinToString("\n")
+          intent.setType("text/plain")
+          intent.putExtra(Intent.EXTRA_TEXT, shareBody)
+          startActivity(Intent.createChooser(intent, ""))
+        }
+        R.id.action_delete -> {
+          val database = BirdDBHelper.getInstance(this)
+          database.clearAllEntries()
+          Toast.makeText(this, getString(R.string.clear_db),Toast.LENGTH_SHORT).show()
+        }
+      }
+      true
+    }
 
     if (GithubStar.shouldShowStarDialog(this)) GithubStar.starDialog(this, "https://github.com/woheller69/whoBIRD")
 

app/src/main/java/org/tensorflow/lite/examples/soundclassifier/SoundClassifier.kt

@@ -67,9 +67,11 @@ class SoundClassifier(
   DefaultLifecycleObserver {
   internal var mContext: Context
   internal var mBinding: ActivityMainBinding
+  private var database: BirdDBHelper? = null
   init {
     this.mContext = context.applicationContext
     this.mBinding = binding
+    this.database = BirdDBHelper.getInstance(mContext)
   }
   class Options constructor(
     /** Path of the converted model label file, relative to the assets/ directory.  */
@@ -341,8 +343,8 @@ class SoundClassifier(
   fun runMetaInterpreter(location: Location) {
     val dayOfYear = LocalDate.now().dayOfYear
     val week = ceil( dayOfYear*48.0/366.0) //model year has 48 weeks
-    val lat = location.latitude.toFloat()
-    val lon = location.longitude.toFloat()
+    lat = location.latitude.toFloat()
+    lon = location.longitude.toFloat()
 
     Handler(Looper.getMainLooper()).post {
       mBinding.gps.setText(mContext.getString(R.string.latitude)+": " + (round(lat*100.0)/100.0).toString() + " / " + mContext.getString(R.string.longitude) + ": " + (round(lon*100.0)/100).toString())
@@ -558,6 +560,7 @@ class SoundClassifier(
               else if (max.value < 0.65) mBinding.text1.setBackgroundResource(R.drawable.oval_holo_orange_dark)
               else if (max.value < 0.8) mBinding.text1.setBackgroundResource(R.drawable.oval_holo_orange_light)
               else mBinding.text1.setBackgroundResource(R.drawable.oval_holo_green_light)
+              database?.addEntry(labelAtMaxIndex, lat, lon, max.index, max.value)
             }
           } else {
             Handler(Looper.getMainLooper()).post {
@@ -615,7 +618,8 @@ class SoundClassifier(
 
   companion object {
     private const val TAG = "SoundClassifier"
-
+    var lat: Float = 0.0f
+    var lon: Float = 0.0f
     /** Number of nanoseconds in a millisecond  */
     private const val NANOS_IN_MILLIS = 1_000_000.toDouble()
   }

app/src/main/res/drawable/ic_delete_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="#FF000000"
+      android:pathData="M280,840q-33,0 -56.5,-23.5T200,760v-520h-40v-80h200v-40h240v40h200v80h-40v520q0,33 -23.5,56.5T680,840L280,840ZM680,240L280,240v520h400v-520ZM360,680h80v-360h-80v360ZM520,680h80v-360h-80v360ZM280,240v520,-520Z"/>
+</vector>

app/src/main/res/drawable/ic_share_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="#FF000000"
+      android:pathData="M720,880q-50,0 -85,-35t-35,-85q0,-7 1,-14.5t3,-13.5L322,568q-17,15 -38,23.5t-44,8.5q-50,0 -85,-35t-35,-85q0,-50 35,-85t85,-35q23,0 44,8.5t38,23.5l282,-164q-2,-6 -3,-13.5t-1,-14.5q0,-50 35,-85t85,-35q50,0 85,35t35,85q0,50 -35,85t-85,35q-23,0 -44,-8.5T638,288L356,452q2,6 3,13.5t1,14.5q0,7 -1,14.5t-3,13.5l282,164q17,-15 38,-23.5t44,-8.5q50,0 85,35t35,85q0,50 -35,85t-85,35ZM720,240q17,0 28.5,-11.5T760,200q0,-17 -11.5,-28.5T720,160q-17,0 -28.5,11.5T680,200q0,17 11.5,28.5T720,240ZM240,520q17,0 28.5,-11.5T280,480q0,-17 -11.5,-28.5T240,440q-17,0 -28.5,11.5T200,480q0,17 11.5,28.5T240,520ZM720,800q17,0 28.5,-11.5T760,760q0,-17 -11.5,-28.5T720,720q-17,0 -28.5,11.5T680,760q0,17 11.5,28.5T720,800ZM720,200ZM240,480ZM720,760Z"/>
+</vector>

app/src/main/res/layout/activity_main.xml

@@ -155,6 +155,7 @@
             app:itemIconTint="@color/orange500"
             app:itemTextColor="@color/orange500"
             app:labelVisibilityMode="unlabeled"
+            app:menu="@menu/bottom_bar"
             android:background="@drawable/background_transparent" />
 
     </com.google.android.material.bottomappbar.BottomAppBar>

app/src/main/res/menu/bottom_bar.xml

@@ -0,0 +1,12 @@
+<menu xmlns:tools="http://schemas.android.com/tools"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+    <item tools:ignore="MenuTitle" />
+    <item tools:ignore="MenuTitle" />
+    <item tools:ignore="MenuTitle" />
+    <item android:id="@+id/action_share"
+        android:icon="@drawable/ic_share_24dp"
+        tools:ignore="MenuTitle" />
+    <item android:id="@+id/action_delete"
+        android:icon="@drawable/ic_delete_24dp"
+        tools:ignore="MenuTitle" />
+</menu>

app/src/main/res/values-de/strings.xml

@@ -14,5 +14,6 @@
     <string name="error_audio_permission">Berechtigung für Mikrofon fehlt</string>
     <string name="error_location_permission">Berechtigung für Standort fehlt</string>
     <string name="show_images">Bilder anzeigen</string>
+    <string name="clear_db">Beobachtungen gelöscht</string>
 
 </resources>

app/src/main/res/values/strings.xml

@@ -15,5 +15,6 @@
     <string name="error_audio_permission">Microphone permission not granted</string>
     <string name="error_location_permission">Location permission not granted</string>
     <string name="show_images">Show images</string>
+    <string name="clear_db">Observations deleted</string>
 
 </resources>