How to connect Android device to WiFi camera + Arduino using Android Studio

Hello Everyone,

I have an OnReal Wifi camera which emits its own wifi an android can connect to. Below is a link to the specific camera:
...amazon.com/OnReal-Camera-Hidden-Compatible-Android/dp/B01K9TQUXC

Now, overall, the ultimate goal is:
1. To wirelessly connect Android device to the camera (using its wifi) {Android Studio}
2. To wirelessly connect to Arduino microcontroller using BLE (the HC-05) module {Android Studio}
- The Arduino microcontroller will be hooked up to an Arduino ultrasonic sensor.
3. Click the video button on the camera to begin video {Physically}
4. Make the pre-connected Android device receive the video stream from the camera {Android Studio}
5. Make the pre-connected Android device receive (Serial?) input from the Arduino microcontroller {Android Studio}
6.1. If the distance is greater than 'x' cm (as received from the Arduino), then save the live frame - preferably to the cloud (Firebase?) - at that instant from camera's video stream {Android Studio}
6.2. Else if the distance is less than 'x' cm (as received from the Arduino), then [nothing new happens; inputs are still continued to be received {Android Studio}
7. (At some point), click the video button on the camera to stop video {Physically}
8. Now, the Android device has sent a number of images to the cloud (Firebase?) {Android Studio}
9. Android device pulls those images from the cloud and calls Image Recognition API - preferably requiring no internet (although MS API would be fine) {Android Studio}
10. Uses API to associate each image with a set of tags + creates a list/vector to store these sets of tags {Android Studio}
11. The user presses a button on the screen and uses (Google?) Voice Recognition to say the name of an object {Android Studio}
12. The Android device tries to find matches of the user's query in the created list/vector {Android Studio}
13. Displays at maximum 3 images which had a match with the user's query {Android Studio}
14. (At some point) user presses a button to clear all frames/images stored in the cloud (Firebase) {Android Studio}

I have researched some broken down examples of my project (the .java's + .xml's + etc...) but none compile... :-(.
I have attached my Arduino Code (which does compile) as well for further reference.

Any code (manifest xml, layout xml's, java's, etc...) and further guidance would be very much appreciated!

Thanks.

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Arduino Code
______________________________________________________________
/*
This Arduino-Code is written for Visualizating measurement data from a microcontroller via Bluetooth.
Before starting this application, the Bluetooth-Module (HC-05) has to be coupled to the Smartphone.In the special case of the HC-05 the default PinCode for initiating the Coupling-Process is "1234".
Wiring: GND of HC-05 to GND Arduino, VCC of HC-05 to VCC Arduino, TX HC-05 to Arduino Pin 10 (RX) RX HC-05 to Arduino Pin 11 (TX)
*/

#include <SoftwareSerial.h>
SoftwareSerial BTserial(10, 11);

//The first two pins are for getting the sensor input from the ultrasonic sensor
//The remaining pin is for the led
int echoPin = 4, trigPin = 5, ledpin = 2;
int distance {};
void setup()
{
pinMode(echoPin, INPUT);
pinMode(trigPin, OUTPUT);
BTserial.begin(9600);
}

void loop()
{
distance = getUltrasonicDistance(trigPin, echoPin);

//The semicolon is there so the Android knows when it will receive a distance value (needed?)
BTserial.print(";");
BTserial.print(distance);
BTserial.print(";");

//I can edit this if needed.
delay(20);

}

//Functions which gets the distance...
int getUltrasonicDistance(int trigPin, int echoPin)
{
int distanceCentimeters;
float pulseLenMicroseconds;

//Bit-bang a small square wave on the trig pin to start the range finder
//The LOW AND HIGHS SIMPLY MEAN ON AND OFF
digitalWrite(trigPin, LOW);
delayMicroseconds(20);
digitalWrite(trigPin, HIGH);
delayMicroseconds(100);
digitalWrite(trigPin, LOW);

//Measures the pulse length from the echo pin
pulseLenMicroseconds = pulseIn(echoPin, HIGH);

//The program calculates the distance (in centimeters) using the speed of sound
distanceCentimeters = pulseLenMicroseconds / 29.387 / 2;

//returns the distance, an int
return distanceCentimeters;
}

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