this is my code

Import kivy dependencies first

from kivy.app import App from kivy.uix.boxlayout import BoxLayout

Import kivy UX components

from kivy.uix.image import Image from kivy.uix.button import Button from kivy.uix.label import Label

Import other kivy stuff

from kivy.clock import Clock from kivy.graphics.texture import Texture from kivy.logger import Logger

import math import mediapipe as mp import numpy as np import cv2 as cv import time from time import sleep

variables

global both_counter global both_final_counter global counter global final_counter global right_counter global right_final_counter global blink_time global blink_list global count global check check = 1

both_counter = 0 both_final_counter = 0 counter = 0 final_counter = 0 right_counter = 0 right_final_counter = 0 blink_time = [0, 0] blink_list = [] count = 0 mp_face_mesh = mp.solutions.face_mesh LEFT_EYE = [362, 382, 381, 380, 374, 373, 390, 249, 263, 466, 388, 387, 386, 385, 384, 398]

RIGHT_EYE = [33, 7, 163, 144, 145, 153, 154, 155, 133, 173, 157, 158, 159, 160, 161, 246] LEFT_IRIS = [469, 470, 471, 472] RIGHT_IRIS = [474, 475, 476, 477]

L_H_LEFT = [33] # right eye right most landmark

L_H_RIGHT = [133] # right eye left most landmark

R_H_LEFT = [362] # left eye right most landmark

R_H_RIGHT = [263] # left

R_UP = [159]

R_DOWN = [145]

L_H_LEFT = 33 # right eye right most landmark L_H_RIGHT = 133 # right eye left most landmark R_H_LEFT = 362 # left eye right most landmark R_H_RIGHT = 263 # left

# L_UP = 386 # left eye uppermost coordinate L_DOWN = 374 # left eye downmost coordinate

R_UP = 159 # right eye uppermost coordinate R_DOWN = 145 # right eye downmost coordinate landmarks = []

class CamApp(App):

def build(self):
    # Main layout components
    self.web_cam = Image(height=25, width=35)
    self.button1 = Button(
        text="close", on_press=self.stop, size_hint=(1, .1))
    self.button2 = Button(
        text="open", on_press=self.start, size_hint=(1, .1))
    self.mainLayout = BoxLayout(orientation='vertical')
    self.buttonLayout = BoxLayout(orientation='vertical')
    self.camLayout = BoxLayout(orientation='vertical')
    self.label = Label(text='Original text', size_hint=(1, .1))
    # Add items to layout
    # self.mainlayout = BoxLayout(orientation='vertical')
    self.camLayout.add_widget(self.web_cam)
    self.buttonLayout.add_widget(self.button1)
    self.buttonLayout.add_widget(self.button2)
    self.mainLayout.add_widget(self.camLayout)
    self.mainLayout.add_widget(self.buttonLayout)
    # self.buttonLayout.add_widget(self.iris_position_label)
    self.buttonLayout.add_widget(self.label)

    # Setup video capture device
    # self.capture = cv.VideoCapture(0)
    # Clock.schedule_interval(self.update, 1.0/33.0)
    self.setup()

    return self.mainLayout

def setup(self):
    self.capture = cv.VideoCapture(0)
    # self.capture.get(cv.CAP_PROP_FPS))
    Clock.schedule_interval(self.update, 1/25.0)

def update(self, *args):
    global check
    # Read frame from opencv
    ret, self.frame = self.capture.read()
    if not ret:
        if check == 1:
            print("closed")
            check = 0
        pass
    else:
        self.frame = cv.flip(self.frame, 1)
        # frame = frame[120:120+250, 200:200+250, :]

        # Flip horizontall and convert image to texture
        # algorithm
        with mp_face_mesh.FaceMesh(max_num_faces=1,
                                   refine_landmarks=True,
                                   min_detection_confidence=0.5,
                                   min_tracking_confidence=0.5
                                   ) as face_mesh:
            rgb_frame = cv.cvtColor(self.frame, cv.COLOR_BGR2RGB)
            img_h, img_w = self.frame.shape[:2]
            results = face_mesh.process(rgb_frame)
            if results.multi_face_landmarks:
                mesh_points0 = np.array([tuple(np.multiply([p.x, p.y], [img_w, img_h]).astype(
                    int).ravel()) for p in results.multi_face_landmarks[0].landmark])
                mesh_points = [tuple(np.multiply([p.x, p.y], [img_w, img_h]).astype(
                    int).ravel()) for p in results.multi_face_landmarks[0].landmark]
                # print(results.multi_face_landmarks)
                # print(mesh_points)

                (l_cx, l_cy), l_radius = cv.minEnclosingCircle(
                    mesh_points0[LEFT_IRIS])
                (r_cx, r_cy), r_radius = cv.minEnclosingCircle(
                    mesh_points0[RIGHT_IRIS])

                center_left = tuple(np.array([l_cx, l_cy], dtype=np.int32))
                center_right = tuple(
                    np.array([r_cx, r_cy], dtype=np.int32))

                # print(mesh_points[R_UP], mesh_points[R_DOWN],mesh_points[R_H_RIGHT], mesh_points[R_H_LEFT])

                cv.circle(self.frame, center_left, int(l_radius),
                          (255, 0, 255), 1, cv.LINE_AA)
                cv.circle(self.frame, center_right, int(r_radius),
                          (255, 0, 255), 1, cv.LINE_AA)
                self.iris_pos, ratio = self.iris_position(
                    center_right, mesh_points[R_UP], mesh_points[R_DOWN], mesh_points[R_H_RIGHT], mesh_points[R_H_LEFT])
                print(self.iris_pos)

                self.label.text = self.iris_pos

                cv.putText(self.frame, f"Iris pos: {self.iris_pos}", (
                    30, 30), cv.FONT_HERSHEY_PLAIN, 1.2, (0, 255, 0), 1, cv.LINE_AA)
                buf = cv.flip(self.frame, 0).tostring()
                img_texture = Texture.create(
                    size=(self.frame.shape[1], self.frame.shape[0]), colorfmt='bgr')
                img_texture.blit_buffer(
                    buf, colorfmt='bgr', bufferfmt='ubyte')
                self.web_cam.texture = img_texture

def stop(self, arg):
    self.loop = True
    self.camLayout.remove_widget(self.web_cam)
    self.capture.release()

def start(self, arg):
    # exit.set()
    self.camLayout.add_widget(self.web_cam)
    self.setup()

def iris_position(self, iris_center, up_point, down_point, right_point, left_point):
    center_to_right_dist = self.euclidean_distance(
        iris_center, right_point)
    total_distance = self.euclidean_distance(right_point, left_point)

    ratio = center_to_right_dist/total_distance

    diff = down_point[1]-up_point[1]
    if diff < 9:
        iris_position = "down"
    elif diff > 11:
        iris_position = "up"
    elif ratio > 0.42 and ratio <= 0.57:
        iris_position = "center"
    elif ratio <= 0.42:
        iris_position = "right"
    else:
        iris_position = "left"
    ratio_vertical = diff
    return iris_position, ratio_vertical

def euclidean_distance(self, point1, point2):
    x1, y1 = point1
    x2, y2 = point2
    self.distance = math.sqrt((x2 - x1)**2 + (y2-y1)**2)
    return self.distance

if name == 'main': CamApp().run()

this is bulldozer spec file : [app]

(str) Title of your application

title = GAZE TRACKING

(str) Package name

package.name = myapp

(str) Package domain (needed for android/ios packaging)

package.domain = org.test

(str) Source code where the main.py live

source.dir = .

(list) Source files to include (let empty to include all the files)

source.include_exts = py,png,jpg,kv,atlas

(list) List of inclusions using pattern matching

source.include_patterns = assets/,images/.png

(list) Source files to exclude (let empty to not exclude anything)

source.exclude_exts = spec

(list) List of directory to exclude (let empty to not exclude anything)

source.exclude_dirs = tests, bin, venv

(list) List of exclusions using pattern matching

Do not prefix with './'

source.exclude_patterns = license,images//.jpg

(str) Application versioning (method 1)

version = 0.1

(str) Application versioning (method 2)

version.regex = version = '"['"]

version.filename = %(source.dir)s/main.py

(list) Application requirements

comma separated e.g. requirements = sqlite3,kivy

requirements = python3==3.9.0,kivy,mediapipe,numpy,opencv

(str) Custom source folders for requirements

Sets custom source for any requirements with recipes

requirements.source.kivy = ../../kivy

(str) Presplash of the application

presplash.filename = %(source.dir)s/data/presplash.png

(str) Icon of the application

icon.filename = %(source.dir)s/data/icon.png

(list) Supported orientations

Valid options are: landscape, portrait, portrait-reverse or landscape-reverse

orientation = portrait

(list) List of service to declare

services = NAME:ENTRYPOINT_TO_PY,NAME2:ENTRYPOINT2_TO_PY

OSX Specific

author = © Copyright Info

change the major version of python used by the app

osx.python_version = 3

Kivy version to use

osx.kivy_version = 1.9.1

Android specific

(bool) Indicate if the application should be fullscreen or not

fullscreen = 0

(string) Presplash background color (for android toolchain)

Supported formats are: #RRGGBB #AARRGGBB or one of the following names:

red, blue, green, black, white, gray, cyan, magenta, yellow, lightgray,

darkgray, grey, lightgrey, darkgrey, aqua, fuchsia, lime, maroon, navy,

olive, purple, silver, teal.

android.presplash_color = #FFFFFF

(string) Presplash animation using Lottie format.

see https://lottiefiles.com/ for examples and https://airbnb.design/lottie/

for general documentation.

Lottie files can be created using various tools, like Adobe After Effect or Synfig.

android.presplash_lottie = "path/to/lottie/file.json"

(str) Adaptive icon of the application (used if Android API level is 26+ at runtime)

icon.adaptive_foreground.filename = %(source.dir)s/data/icon_fg.png

icon.adaptive_background.filename = %(source.dir)s/data/icon_bg.png

(list) Permissions

(See https://python-for-android.readthedocs.io/en/latest/buildoptions/#build-options-1 for all the supported syntaxes and properties)

android.permissions = android.permission.INTERNET, (name=android.permission.WRITE_EXTERNAL_STORAGE;maxSdkVersion=18)

(list) features (adds uses-feature -tags to manifest)

android.features = android.hardware.usb.host

(int) Target Android API, should be as high as possible.

android.api = 31

(int) Minimum API your APK / AAB will support.

android.minapi = 21

(int) Android SDK version to use

android.sdk = 20

(str) Android NDK version to use

android.ndk = 23b

(int) Android NDK API to use. This is the minimum API your app will support, it should usually match android.minapi.

android.ndk_api = 21

(bool) Use --private data storage (True) or --dir public storage (False)

android.private_storage = True

(str) Android NDK directory (if empty, it will be automatically downloaded.)

android.ndk_path =

(str) Android SDK directory (if empty, it will be automatically downloaded.)

android.sdk_path =

(str) ANT directory (if empty, it will be automatically downloaded.)

android.ant_path =

(bool) If True, then skip trying to update the Android sdk

This can be useful to avoid excess Internet downloads or save time

when an update is due and you just want to test/build your package

android.skip_update = False

(bool) If True, then automatically accept SDK license

agreements. This is intended for automation only. If set to False,

the default, you will be shown the license when first running

buildozer.

android.accept_sdk_license = False

(str) Android entry point, default is ok for Kivy-based app

android.entrypoint = org.kivy.android.PythonActivity

(str) Full name including package path of the Java class that implements Android Activity

use that parameter together with android.entrypoint to set custom Java class instead of PythonActivity

android.activity_class_name = org.kivy.android.PythonActivity

(str) Extra xml to write directly inside the element of AndroidManifest.xml

use that parameter to provide a filename from where to load your custom XML code

android.extra_manifest_xml = ./src/android/extra_manifest.xml

(str) Extra xml to write directly inside the tag of AndroidManifest.xml

use that parameter to provide a filename from where to load your custom XML arguments:

android.extra_manifest_application_arguments = ./src/android/extra_manifest_application_arguments.xml

(str) Full name including package path of the Java class that implements Python Service

use that parameter to set custom Java class which extends PythonService

android.service_class_name = org.kivy.android.PythonService

(str) Android app theme, default is ok for Kivy-based app

android.apptheme = "@android:style/Theme.NoTitleBar"

(list) Pattern to whitelist for the whole project

android.whitelist =

(str) Path to a custom whitelist file

android.whitelist_src =

(str) Path to a custom blacklist file

android.blacklist_src =

(list) List of Java .jar files to add to the libs so that pyjnius can access

their classes. Don't add jars that you do not need, since extra jars can slow

down the build process. Allows wildcards matching, for example:

OUYA-ODK/libs/*.jar

android.add_jars = foo.jar,bar.jar,path/to/more/*.jar

(list) List of Java files to add to the android project (can be java or a

directory containing the files)

android.add_src =

(list) Android AAR archives to add

android.add_aars =

(list) Put these files or directories in the apk assets directory.

Either form may be used, and assets need not be in 'source.include_exts'.

1) android.add_assets = source_asset_relative_path

2) android.add_assets = source_asset_path:destination_asset_relative_path

android.add_assets =

(list) Put these files or directories in the apk res directory.

The option may be used in three ways, the value may contain one or zero ':'

Some examples:

1) A file to add to resources, legal resource names contain ['a-z','0-9','_']

android.add_resources = my_icons/all-inclusive.png:drawable/all_inclusive.png

2) A directory, here 'legal_icons' must contain resources of one kind

android.add_resources = legal_icons:drawable

3) A directory, here 'legal_resources' must contain one or more directories,

each of a resource kind: drawable, xml, etc...

android.add_resources = legal_resources

android.add_resources =

(list) Gradle dependencies to add

android.gradle_dependencies =

(bool) Enable AndroidX support. Enable when 'android.gradle_dependencies'

contains an 'androidx' package, or any package from Kotlin source.

android.enable_androidx requires android.api >= 28

android.enable_androidx = True

(list) add java compile options

this can for example be necessary when importing certain java libraries using the 'android.gradle_dependencies' option

see https://developer.android.com/studio/write/java8-support for further information

android.add_compile_options = "sourceCompatibility = 1.8", "targetCompatibility = 1.8"

(list) Gradle repositories to add {can be necessary for some android.gradle_dependencies}

please enclose in double quotes

e.g. android.gradle_repositories = "maven { url 'https://kotlin.bintray.com/ktor' }"

android.add_gradle_repositories =

(list) packaging options to add

see https://google.github.io/android-gradle-dsl/current/com.android.build.gradle.internal.dsl.PackagingOptions.html

can be necessary to solve conflicts in gradle_dependencies

please enclose in double quotes

e.g. android.add_packaging_options = "exclude 'META-INF/common.kotlin_module'", "exclude 'META-INF/*.kotlin_module'"

android.add_packaging_options =

(list) Java classes to add as activities to the manifest.

android.add_activities = com.example.ExampleActivity

(str) OUYA Console category. Should be one of GAME or APP

If you leave this blank, OUYA support will not be enabled

android.ouya.category = GAME

(str) Filename of OUYA Console icon. It must be a 732x412 png image.

android.ouya.icon.filename = %(source.dir)s/data/ouya_icon.png

(str) XML file to include as an intent filters in tag

android.manifest.intent_filters =

(list) Copy these files to src/main/res/xml/ (used for example with intent-filters)

android.res_xml = PATH_TO_FILE,

(str) launchMode to set for the main activity

android.manifest.launch_mode = standard

(str) screenOrientation to set for the main activity.

Valid values can be found at https://developer.android.com/guide/topics/manifest/activity-element

android.manifest.orientation = fullSensor

(list) Android additional libraries to copy into libs/armeabi

android.add_libs_armeabi = libs/android/*.so

android.add_libs_armeabi_v7a = libs/android-v7/*.so

android.add_libs_arm64_v8a = libs/android-v8/*.so

android.add_libs_x86 = libs/android-x86/*.so

android.add_libs_mips = libs/android-mips/*.so

(bool) Indicate whether the screen should stay on

Don't forget to add the WAKE_LOCK permission if you set this to True

android.wakelock = False

(list) Android application meta-data to set (key=value format)

android.meta_data =

(list) Android library project to add (will be added in the

project.properties automatically.)

android.library_references =

(list) Android shared libraries which will be added to AndroidManifest.xml using tag

android.uses_library =

(str) Android logcat filters to use

android.logcat_filters = *:S python:D

(bool) Android logcat only display log for activity's pid

android.logcat_pid_only = False

(str) Android additional adb arguments

android.adb_args = -H host.docker.internal

(bool) Copy library instead of making a libpymodules.so

android.copy_libs = 1

(list) The Android archs to build for, choices: armeabi-v7a, arm64-v8a, x86, x86_64

In past, was `android.arch` as we weren't supporting builds for multiple archs at the same time.

android.archs = arm64-v8a, armeabi-v7a

(int) overrides automatic versionCode computation (used in build.gradle)

this is not the same as app version and should only be edited if you know what you're doing

android.numeric_version = 1

(bool) enables Android auto backup feature (Android API >=23)

android.allow_backup = True

(str) XML file for custom backup rules (see official auto backup documentation)

android.backup_rules =

(str) If you need to insert variables into your AndroidManifest.xml file,

you can do so with the manifestPlaceholders property.

This property takes a map of key-value pairs. (via a string)

Usage example : android.manifest_placeholders = [myCustomUrl:\"org.kivy.customurl\"]

android.manifest_placeholders = [:]

(bool) Skip byte compile for .py files

android.no-byte-compile-python = False

(str) The format used to package the app for release mode (aab or apk or aar).

android.release_artifact = aab

(str) The format used to package the app for debug mode (apk or aar).

android.debug_artifact = apk

Python for android (p4a) specific

(str) python-for-android URL to use for checkout

p4a.url =

(str) python-for-android fork to use in case if p4a.url is not specified, defaults to upstream (kivy)

p4a.fork = kivy

(str) python-for-android branch to use, defaults to master

p4a.branch = master

(str) python-for-android specific commit to use, defaults to HEAD, must be within p4a.branch

p4a.commit = HEAD

(str) python-for-android git clone directory (if empty, it will be automatically cloned from github)

p4a.source_dir =

(str) The directory in which python-for-android should look for your own build recipes (if any)

p4a.local_recipes =

(str) Filename to the hook for p4a

p4a.hook =

(str) Bootstrap to use for android builds

p4a.bootstrap = sdl2

(int) port number to specify an explicit --port= p4a argument (eg for bootstrap flask)

p4a.port =

Control passing the --use-setup-py vs --ignore-setup-py to p4a

"in the future" --use-setup-py is going to be the default behaviour in p4a, right now it is not

Setting this to false will pass --ignore-setup-py, true will pass --use-setup-py

NOTE: this is general setuptools integration, having pyproject.toml is enough, no need to generate

setup.py if you're using Poetry, but you need to add "toml" to source.include_exts.

p4a.setup_py = false

(str) extra command line arguments to pass when invoking pythonforandroid.toolchain

p4a.extra_args =

iOS specific

(str) Path to a custom kivy-ios folder

ios.kivy_ios_dir = ../kivy-ios

Alternately, specify the URL and branch of a git checkout:

ios.kivy_ios_url = https://github.com/kivy/kivy-ios ios.kivy_ios_branch = master

Another platform dependency: ios-deploy

Uncomment to use a custom checkout

ios.ios_deploy_dir = ../ios_deploy

Or specify URL and branch

ios.ios_deploy_url = https://github.com/phonegap/ios-deploy ios.ios_deploy_branch = 1.10.0

(bool) Whether or not to sign the code

ios.codesign.allowed = false

(str) Name of the certificate to use for signing the debug version

Get a list of available identities: buildozer ios list_identities

ios.codesign.debug = "iPhone Developer: ()"

(str) The development team to use for signing the debug version

ios.codesign.development_team.debug =

(str) Name of the certificate to use for signing the release version

ios.codesign.release = %(ios.codesign.debug)s

(str) The development team to use for signing the release version

ios.codesign.development_team.release =

(str) URL pointing to .ipa file to be installed

This option should be defined along with `display_image_url` and `full_size_image_url` options.

ios.manifest.app_url =

(str) URL pointing to an icon (57x57px) to be displayed during download

This option should be defined along with `app_url` and `full_size_image_url` options.

ios.manifest.display_image_url =

(str) URL pointing to a large icon (512x512px) to be used by iTunes

This option should be defined along with `app_url` and `display_image_url` options.

kivy / plyer

my kivy app keeps crashing in android, how to debug it? #759