my python file closes once it opens after converting to apk

[bezcoded]

i wrote a python file for a web browser..
its opens fine when i run the program in .py
this is the code

from kivymd.app import MDApp
from kivymd.uix.label import MDLabel
from kivy.app import App
from kivy.metrics import dp
from kivy.uix.behaviors import TouchRippleBehavior
from kivy.uix.button import Button
from kivy.lang import Builder
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.uix.textinput import TextInput
from PyQt5.QtPrintSupport import *
import os
import sys

from gettext import install
from idlelib import browser

import PyQt5.QtWebEngineWidgets
import browserhistory as browserhistory

from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtWebEngineWidgets import *

main window

class MainWindow(QMainWindow):

# constructor
def __init__(self, *args, **kwargs):
    super(MainWindow, self).__init__(*args, **kwargs)

    # creating a tab widget
    self.tabs = QTabWidget()

    # making document mode true
    self.tabs.setDocumentMode(True)

    # adding action when double clicked
    self.tabs.tabBarClicked.connect(self.tab_open_doubleclick)

    # adding action when tab is changed
    self.tabs.currentChanged.connect(self.current_tab_changed)

    # making tabs closeable
    self.tabs.setTabsClosable(True)

    # adding action when tab close is requested
    self.tabs.tabCloseRequested.connect(self.close_current_tab)

    # making tabs as central widget
    self.setCentralWidget(self.tabs)

    # creating a status bar
    self.status = QStatusBar()

    # setting status bar to the main window
    self.setStatusBar(self.status)

    # creating a tool bar for navigation
    navtb = QToolBar("Navigation")

    # adding tool bar tot he main window
    self.addToolBar(navtb)


    # creating back action
    back_btn = QAction("Back", self)

    # setting status tip
    back_btn.setStatusTip("Back to previous page")

    # adding action to back button
    # making current tab to go back
    back_btn.triggered.connect(lambda: self.tabs.currentWidget().back())

    # adding this to the navigation tool bar
    navtb.addAction(back_btn)

    # similarly adding next button
    next_btn = QAction("Forward", self)
    next_btn.setStatusTip("Forward to next page")
    next_btn.triggered.connect(lambda: self.tabs.currentWidget().forward())
    navtb.addAction(next_btn)

    # similarly adding reload button
    reload_btn = QAction("Reload", self)
    reload_btn.setStatusTip("Reload page")
    reload_btn.triggered.connect(lambda: self.tabs.currentWidget().reload())
    navtb.addAction(reload_btn)

    # creating home action
    home_btn = QAction("Home", self)
    home_btn.setStatusTip("Go home")

    # adding action to home button
    home_btn.triggered.connect(self.navigate_home)
    navtb.addAction(home_btn)

    # adding a separator
    navtb.addSeparator()

    # creating a line edit widget for URL
    self.urlbar = QLineEdit()

    # adding action to line edit when return key is pressed
    self.urlbar.returnPressed.connect(self.navigate_to_url)

    # adding line edit to tool bar
    navtb.addWidget(self.urlbar)

    # similarly adding stop action
    stop_btn = QAction("Stop", self)
    stop_btn.setStatusTip("Stop loading current page")
    stop_btn.triggered.connect(lambda: self.tabs.currentWidget().stop())
    navtb.addAction(stop_btn)

    # creating first tab
    self.add_new_tab(QUrl('http://www.google.com'), 'Homepage')

    # showing all the components
    self.show()

    # setting window title
    self.setWindowTitle("Bez Web Browser")

# method for adding new tab
def add_new_tab(self, qurl=None, label="Blank"):

    # if url is blank
    if qurl is None:
        # creating a google url
        qurl = QUrl('http://www.google.com')

    # creating a QWebEngineView object
    browser = QWebEngineView()

    # setting url to browser
    browser.setUrl(qurl)

    # setting tab index
    i = self.tabs.addTab(browser, label)
    self.tabs.setCurrentIndex(i)

    # adding action to the browser when url is changed
    # update the url
    browser.urlChanged.connect(lambda qurl, browser=browser:
                               self.update_urlbar(qurl, browser))

    # adding action to the browser when loading is finished
    # set the tab title
    browser.loadFinished.connect(lambda _, i=i, browser=browser:
                                 self.tabs.setTabText(i, browser.page().title()))

# when double clicked is pressed on tabs
def tab_open_doubleclick(self, i):

    # checking index i.e
    # No tab under the click
    if i == -1:
        # creating a new tab
        self.add_new_tab()

# when tab is changed
def current_tab_changed(self, i):

    # get the curl
    qurl = self.tabs.currentWidget().url()

    # update the url
    self.update_urlbar(qurl, self.tabs.currentWidget())

    # update the title
    self.update_title(self.tabs.currentWidget())

# when tab is closed
def close_current_tab(self, i):

    # if there is only one tab
    if self.tabs.count() < 2:
        # do nothing
        return

    # else remove the tab
    self.tabs.removeTab(i)

# method for updating the title
def update_title(self, browser):

    # if signal is not from the current tab
    if browser != self.tabs.currentWidget():
        # do nothing
        return

    # get the page title
    title = self.tabs.currentWidget().page().title()

    # set the window title
    self.setWindowTitle("% s - Bez Web Browser" % title)

# action to go to home
def navigate_home(self):

    # go to google
    self.tabs.currentWidget().setUrl(QUrl("http://www.google.com"))

# method for navigate to url
def navigate_to_url(self):

    # get the line edit text
    # convert it to QUrl object
    q = QUrl(self.urlbar.text())

    # if scheme is blank
    if q.scheme() == "":
        # set scheme
        q.setScheme("http")

    # set the url
    self.tabs.currentWidget().setUrl(q)

# method to update the url
def update_urlbar(self, q, browser=None):

    # If this signal is not from the current tab, ignore
    if browser != self.tabs.currentWidget():
        return

    # set text to the url bar
    self.urlbar.setText(q.toString())

    # set cursor position
    self.urlbar.setCursorPosition(0)

creating a PyQt5 application

app = QApplication(sys.argv)

setting name to the application

app.setApplicationName("Bez Web Browser")

creating MainWindow object

window = MainWindow()

loop

app.exec_()

so after converting it to apk
this is the bulduzor.spec

[app]

(str) Title of your application

title = My Browser

(str) Package name

package.name = mybrowser

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

package.domain = org.bez

(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,kivy==2.0.0,kivymd,pillow

(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

(str) Supported orientation (one of landscape, sensorLandscape, portrait or all)

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

#android.permissions = INTERNET

(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 = 27

(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 = 19b

(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 instead of 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) 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 = False

(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 =

(str) launchMode to set for the main activity

#android.manifest.launch_mode = standard

(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) disables the compilation of py to pyc/pyo files when packaging

android.no-compile-pyo = True

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

android.release_artifact = aab

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.

#ios.manifest.full_size_image_url =

[buildozer]

(int) Log level (0 = error only, 1 = info, 2 = debug (with command output))

log_level = 2

(int) Display warning if buildozer is run as root (0 = False, 1 = True)

warn_on_root = 1

(str) Path to build artifact storage, absolute or relative to spec file

build_dir = ./.buildozer

(str) Path to build output (i.e. .apk, .aab, .ipa) storage

bin_dir = ./bin

-----------------------------------------------------------------------------

List as sections

You can define all the "list" as [section:key].

Each line will be considered as a option to the list.

Let's take [app] / source.exclude_patterns.

Instead of doing:

#[app]
#source.exclude_patterns = license,data/audio/.wav,data/images/original/

This can be translated into:

#[app:source.exclude_patterns]
#license
#data/audio/.wav
#data/images/original/

-----------------------------------------------------------------------------

Profiles

You can extend section / key with a profile

For example, you want to deploy a demo version of your application without

HD content. You could first change the title to add "(demo)" in the name

and extend the excluded directories to remove the HD content.

#[app@demo]
#title = My Application (demo)

#[app:source.exclude_patterns@demo]
#images/hd/*

Then, invoke the command line with the "demo" profile:

#buildozer --profile demo android debug

please why does it not work

[github-actions]

👋 @bezcoded,
Sorry to hear you are having difficulties with Kivy's python-for-android; Kivy unites a number of different technologies, so building apps can be temperamental.
We try to use GitHub issues only to track work for developers to do to fix bugs and add new features to python-for-android.
However, this issue appears to be a support request. Please use our support channels to get help with the project.
If you're having trouble installing python-for-android, please see our quickstart guide.
If you're having trouble using python-for-android, please see our troubleshooting guide and FAQ.
Let us know if this comment was made in error, and we'll be happy to reopen the issue.