landing page created

Mobile App/app/src/main/java/com/sliit/blindvision/Locate.java

+package com.sliit.blindvision;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.util.ArrayList;
+
+public class Locate extends Activity {
+
+	ArrayList<String> buildings;
+	DatabaseHelper db;
+	ArrayAdapter<String> arrayAdapter;
+	ArrayList<PositionData> positionsData;
+	String building;
+	TextView result;
+	Button locate;
+
+	public void onCreate(Bundle saveInstanceState) {
+		super.onCreate(saveInstanceState);
+		setContentView(R.layout.locate);
+		db = new DatabaseHelper(this);
+		buildings = db.getBuildings();
+		locate = (Button) findViewById(R.id.locate);
+
+		result = (TextView) findViewById(R.id.result);
+        arrayAdapter = new ArrayAdapter<String>(this,
+				android.R.layout.simple_spinner_item, buildings);
+
+		locate.setOnClickListener(new View.OnClickListener() {
+
+			@Override
+			public void onClick(View arg0) {
+				// TODO Auto-generated method stub
+				Intent intent = new Intent(getApplicationContext(), Scan.class);
+				intent.putExtra("isLearning", false);
+				startActivityForResult(intent,0);
+				
+			}
+		});
+	
+		arrayAdapter = new ArrayAdapter<String>(this,
+				android.R.layout.simple_list_item_1, buildings);
+		// Set The Adapter
+        if (buildings.size()==0) {
+            Toast.makeText(this, "No building data available.", Toast.LENGTH_LONG).show();
+            locate.setEnabled(false);
+        }
+        else{
+
+
+		AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setCancelable(false);
+		builder.setTitle("Choose building");
+		builder.setAdapter(arrayAdapter, new DialogInterface.OnClickListener() {
+			@Override
+			public void onClick(DialogInterface dialog, int which) {
+				// the user clicked on colors[which]
+				building = buildings.get(which);
+
+							
+				
+			}
+		});
+		builder.show();
+        }
+
+	}
+
+
+
+    @Override
+	protected void onActivityResult(int requestCode, int resultCode,
+			Intent intent) {
+		// TODO Auto-generated method stub
+        if(resultCode==RESULT_OK){
+
+
+		PositionData positionData = (PositionData) intent
+				.getSerializableExtra("PositionData");
+		positionsData=db.getReadings(building);
+
+		String closestPosition = null;
+		ArrayList<Router> wifis = db.getFriendlyWifis(building);
+
+		int min_distance = positionData.uDistance(positionsData.get(0), wifis);
+        int j=0;
+		closestPosition = positionsData.get(0).getName();
+		String res = "";
+		res += closestPosition + "\n" + min_distance;
+		res += "\n" + positionsData.get(0).toString();
+		for (int i = 1; i < positionsData.size(); i++) {
+			int distance = positionData.uDistance(positionsData.get(i), wifis);
+			res += "\n" + positionsData.get(i).getName() + "\n" + distance;
+			res += "\n" + positionsData.get(i).toString();
+			if (distance < min_distance) {
+				min_distance = distance;
+                j=i;
+				closestPosition = positionsData.get(i).getName();
+
+			}
+
+		}
+           if (min_distance == PositionData.MAX_DISTANCE){
+                closestPosition="OUT OF RANGE";
+                Toast.makeText(this,"You are out of range of the selected building",Toast.LENGTH_LONG).show();
+
+            }
+            result.setText("Nearest point :  "+ closestPosition);
+
+            //////////////////////////////////////////////////
+            min_distance = positionData.uDistance(positionsData.get(0), wifis);
+            String closestPosition2 = null;
+
+            closestPosition2 = positionsData.get(0).getName();
+            res = "";
+            res += closestPosition2 + "\n" + min_distance;
+            res += "\n" + positionsData.get(0).toString();
+            for (int i = 1; i < positionsData.size(); i++) {
+               if(i!=j) {
+                    int distance = positionData.uDistance(positionsData.get(i), wifis);
+                    res += "\n" + positionsData.get(i).getName() + "\n" + distance;
+                    res += "\n" + positionsData.get(i).toString();
+                    closestPosition2 = positionsData.get(i).getName();//////////////////////////
+                    if(closestPosition2.equals(closestPosition))
+                        continue;
+                    if (distance < min_distance) {
+                        min_distance = distance;
+                        closestPosition2 = positionsData.get(i).getName();
+
+                    }
+                }
+            }
+
+            if (min_distance == PositionData.MAX_DISTANCE){
+                closestPosition2="OUT OF RANGE";
+                Toast.makeText(this,"You are out of range of the selected building",Toast.LENGTH_LONG).show();
+
+            }
+
+
+
+
+            res += "\nCurrent:\n" + positionData.toString();
+		Log.v("Result",res);
+
+
+
+		
+		super.onActivityResult(requestCode, resultCode, intent);
+        }
+	}
+
+
+	public class CustomOnItemSelectedListener implements
+			AdapterView.OnItemSelectedListener {
+
+		public void onItemSelected(AdapterView<?> parent, View view, int pos,
+				long id) {
+
+			building = parent.getItemAtPosition(pos).toString();
+			locate.setEnabled(true);
+		}
+
+		@Override
+		public void onNothingSelected(AdapterView<?> arg0) {
+			// TODO Auto-generated method stub
+			locate.setEnabled(false);
+		}
+
+	}
+
+
+
+}

Mobile App/app/src/main/java/com/sliit/blindvision/MainActivity.java

+package com.sliit.blindvision;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+}
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Mobile App/app/src/main/res/layout/activity_landing.xml

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:gravity="center"
+    android:orientation="vertical"
+    android:padding="16dp">
+
+    <Button
+        android:id="@+id/btn_wifi_calibration"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="16dp"
+        android:text="Open WiFi Calibration" />
+
+    <Button
+        android:id="@+id/btn_route_finder"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Open Route Finder" />
+
+</LinearLayout>

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

+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/LinearLayout1"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin" >
+
+    <TextView
+        android:id="@+id/textHeading"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+
+    <EditText
+        android:id="@+id/placename"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:ems="10" >
+
+        <requestFocus />
+    </EditText>
+
+    <Button
+        android:id="@+id/button1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal"
+        android:text="Calibrate" />
+
+    <TextView
+        android:id="@+id/TextView1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal" />
+
+    <TextView
+        android:id="@+id/TextView2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal"
+        android:textColor="#ff0000"
+        android:textSize="30dp" />
+
+    <ScrollView
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content" >
+
+        <TextView
+            android:id="@+id/TextView3"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+    </ScrollView>
+
+</LinearLayout>
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