Error in access camera android.

I’am trying execute this:

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

from plyer import camera

import time

Builder.load_string('''
<CameraScreen>:
	orientation: 'vertical'
	Image:
		id: image
	Button:
		size_hint_y: None
		height: '100dp'
		text: "Acess Camera"
		on_release: root.acess_camera()

''')

class CameraScreen(BoxLayout):
	
	def acess_camera(self):
		name_photo = time.strftime("%d%Y_%H%M%S") + ".jpg"
		print(name_photo)
		camera.take_picture(filename=name_photo, on_complete=self.camera_callback)

	def camera_callback(self, filename):
		print("filename: ", filename)
		self.ids.image.source = filename

class CameraApp(App):
	def build(self):
		return CameraScreen()

CameraApp().run()

But, I’m getting this error:

jnius.jnius.JavaException:` JVM exception occurred: file://212019_193209.jpg exposed beyond app through `ClipData.Item.getUri()

Any idea for resolve it?

Information: API 27 Python 2.7

My buildozer.spec:

[app]

# (str) Title of your application
title = Camera Teste

# (str) Package name
package.name = camerateste

# (str) Package domain (needed for android/ios packaging)
package.domain = jeferson.developer.camerateste

# (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

# (list) List of exclusions using pattern matching
#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 = python2,kivy,plyer,android

# (str) Custom source folders for requirements
# Sets custom source for any requirements with recipes
# requirements.source.kivy = ../../kivy

# (list) Garden requirements
#garden_requirements =

# (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 new 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

# (list) Permissions
android.permissions = INTERNET, CAMERA

# (int) Target Android API, should be as high as possible.
#android.api = 27

# (int) Minimum API your APK will support.
#android.minapi = 21

# (int) Android SDK version to use
#android.sdk = 20

# (str) Android NDK version to use
#android.ndk = 17c

# (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.renpy.android.PythonActivity

# (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 (currently works only with sdl2_gradle
# bootstrap)
#android.add_aars =

# (list) Gradle dependencies to add (currently works only with sdl2_gradle
# bootstrap)
#android.gradle_dependencies =

# (list) Java classes to add as activities to the manifest.
#android.add_activites = com.example.ExampleActivity

# (str) python-for-android branch to use, defaults to master
#p4a.branch = master

# (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 <activity> 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_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 =

# (str) Android logcat filters to use
#android.logcat_filters = *:S python:D

# (bool) Copy library instead of making a libpymodules.so
#android.copy_libs = 1

# (str) The Android arch to build for, choices: armeabi-v7a, arm64-v8a, x86
android.arch = armeabi-v7a

#
# Python for android (p4a) specific
#

# (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 =


#
# 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 = 1.7.0

# (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: <lastname> <firstname> (<hexstring>)"

# (str) Name of the certificate to use for signing the release version
#ios.codesign.release = %(ios.codesign.debug)s


[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, .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

[jefersonvinicius]

I can use camera in android API 27.

• Add this file in your project folder. I created a folder named libs.

• In buildozer.spec file I change these lines: Permissions: android.permissions = INTERNET, ACCESS_FINE_LOCATION, WRITE_EXTERNAL_STORAGE, CAMERA Add path to FileProvider lib: android.add_aars = ./libs/support-v4-24.1.1.aar

• Add this file too , it is based in plyer module.

• Build your project: buildozer android debug

• After builded, in the .buildozer\android\platform\python-for-android\pythonforandroid\bootstraps\sdl2\build\templates\AndroidManifest.tmpl.xml file add the following code snippets:

...
<!-- Android 2.3.3 -->
<uses-sdk  android:minSdkVersion="{{ args.min_sdk_version }}"  android:targetSdkVersion="{{ android_api }}"  />

+ <uses-feature  android:name="android.hardware.camera"  />
+ <uses-feature  android:name="android.hardware.camera.autofocus"  />

<!-- OpenGL ES 2.0 -->
<uses-feature  android:glEsVersion="0x00020000"  />
...

...
	<activity  android:name="{{ a }}"></activity>
	{% endfor %}
+		<provider
+			android:name="android.support.v4.content.FileProvider"
+			android:authorities="<YOUR PACKAGE NAME>"
+			android:exported="false"
+			android:grantUriPermissions="true">
+		<meta-data
+			android:name="android.support.FILE_PROVIDER_PATHS"
+			android:resource="@xml/file_paths"/>
+		</provider>
	</application>
</manifest>

NOTE: In <YOUR PACKAGE NAME> you must put the full package of the app. It is package.domain concatenated with package.name provided in buildozer.spec. Example:

# (str) Package name
package.name = myapp

# (str) Package domain (needed for android/ios packaging)
package.domain = com.my.domain	

RESULT: com.my.domain.myapp

• Then create a folder named xml in the .buildozer\android\platform\python-for-android\pythonforandroid\bootstraps\sdl2\build\src\main\res directory and create a file named file_paths.xml with the following code:

<?xml version="1.0" encoding="utf-8"?>
<paths  xmlns:android="http://schemas.android.com/apk/res/android">
	<external-path  name="external_files"  path="Android/data/<YOUR PACKAGE NAME>/files/Pictures"  />
</paths>

Don’t forget the package in this file too!

• Now, build again: buildozer android debug deploy run. Don`t forget give permissions in app config screen.

• The usage is similar to plyer module. The difference is that you will have to instantiate a CameraScreen object. After, call take_picture method with on_complete argument.

VERSIONS: buildozer == 0.39 cython == 0.29.10

I expect have helped. Sorry by my english, it don`t my native language. I would also like to thank everyone who contributed to this issue .

[IHadAFish]

Might have found the solution. Basically, we need to use FileProvider class for the uri. For the most part just follow the instructions in here. https://developer.android.com/training/camera/photobasics.html

These are the modification I made to camera.py:

FileProvider = autoclass('android.support.v4.content.FileProvider')
Context = autoclass("android.content.Context")
Environment = autoclass("android.os.Environment")

I also added support-v4-24.1.1.aar, otherwise FileProvider class can’t be found.

Inside _take_picture function:

def _take_picture(self, on_complete, filename=None):

        def create_img_file():
            File = autoclass('java.io.File')
            storageDir = Context.getExternalFilesDir(Environment.DIRECTORY_PICTURES)

            imageFile = File(
                storageDir,
                "temp.jpg"
            )
            imageFile.createNewFile()

            return imageFile

        assert(on_complete is not None)
        self.on_complete = on_complete
        self.filename = filename
        android.activity.unbind(on_activity_result=self._on_activity_result)
        android.activity.bind(on_activity_result=self._on_activity_result)
        intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)

        photoFile = create_img_file()
        photoUri = FileProvider.getUriForFile(
            Context.getApplicationContext(),
            "org.test.myapp.fileprovider",
            photoFile
        )

        parcelable = cast('android.os.Parcelable', photoUri)

        intent.putExtra(MediaStore.EXTRA_OUTPUT, parcelable)
        activity.startActivityForResult(intent, 0x123)

The AndroidManifest.tmpl.xml will also need to be modified according to the instructions in the link.

But doing these will cause another problem where a duplication of the image will be saved to /DCIM/Camera