Kivy - Touch not answer everytime on android
Question: I have an App which is working fine, but sometimes I don't have touch answer,
no matter where (Button, Tabbed Panel...). This happens in other android I
tested, different versions and different cell phones. Sometimes I touch once
and answer is ok, sometimes I need touch two or three times. Is not just me,
other people using same app in others cell phones had the same problem. I
built with buildozer and have no idea why I have this behavior. I built and
install touch tracer (that demo app) and all the touchs were recognized, so I
suppose the problem is not with buildozer, but just is case, this is my
buildozer.spec (for my app, not for touch tracer):

    
    
        [app]
    
    # (str) Title of your application
    title = DAP
    
    # (str) Package name
    package.name = DAP
    
    # (str) Package domain (needed for android/ios packaging)
    package.domain = com.doatlanticoaopacifico
    
    # (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,ttf,db
    
    # (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 seperated e.g. requirements = sqlite3,kivy
    requirements = sqlite3,kivy,datetime,plyer,ecdsa,paramiko
    
    # (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/figura.png
    
    # (str) Icon of the application
    icon.filename = %(source.dir)s/data/logo.png
    
    # (str) Supported orientation (one of landscape, 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
    
    #
    # Android specific
    #
    
    # (bool) Indicate if the application should be fullscreen or not
    fullscreen = 0
    
    # (list) Permissions
    android.permissions = INTERNET,ACCESS_NETWORK_STATE,CAMERA 
    
    # (int) Android API to use
    #android.api = 19
    
    # (int) Minimum API required
    #android.minapi = 9
    
    # (int) Android SDK version to use
    #android.sdk = 20
    
    # (str) Android NDK version to use
    #android.ndk = 9c
    
    # (bool) Use --private data storage (True) or --dir public storage (False)
    android.private_storage = False
    
    # (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 =
    
    # (str) python-for-android git clone directory (if empty, it will be automatically cloned from github)
    #android.p4a_dir =
    
    # (list) python-for-android whitelist
    #android.p4a_whitelist =
    
    # (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
    
    # (str) Android entry point, default is ok for Kivy-based app
    #android.entrypoint = org.renpy.android.PythonActivity
    
    # (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 =
    
    # (str) python-for-android branch to use, if not master, useful to try
    # not yet merged features.
    #android.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 =
    
    # (list) Android additionnal 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
    
    #
    # iOS specific
    #
    
    # (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
    
    
    #    -----------------------------------------------------------------------------
    #    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
    

I can provide all the code and apk for test if necessary. I found similiar
problems in other forums (stackoverflow too) but in all of them the touch just
doesn't work - in my case doesn't work many times, but not with a pattern,
apparently.

EDIT

This is a short example of a code which have the same problem:

    
    
    import kivy
    kivy.require('1.0.5')
    
    from kivy.uix.floatlayout import FloatLayout
    from kivy.app import App
    from kivy.properties import ObjectProperty, StringProperty
    from kivy.uix.tabbedpanel import TabbedPanel
    
    from kivy.core.window import Window
    Window.clearcolor = (1, 1, 1, 1)
    import kivy.metrics as conv
    
    
    class Dap(FloatLayout):
        telal,telaa  = Window.size
    
    
    class DapApp(App):
    
        def build(self):
    
            return Dap()
    
    if __name__ == '__main__':
        DapApp().run()
    

kv file:

    
    
    #:kivy 1.0
    #:import conv kivy.metrics
    
    <Dap>:
    
        TabbedPanel:
            do_default_tab: False
            background_color: (1, 1, 1, 0)
            background_normal: ''
            background_disabled_normal:''
            background_down: ''
            background_disabled_down: ''
            tab_width:root.telal/4
            tab_height:conv.cm(1.25)
    
            TabbedPanelItem:
                background_color: (0, 0, 1, 0.7)
                background_normal: ''
                background_disabled_normal:''
                background_down: ''
                background_disabled_down: ''
                font_size: 18
                color: (1,1,1,1)
                text: 'Login'
                Label:
                    text: 'Login tab content area'
                    background_color: (1, 1, 1, 1)
                    background_normal: ''
                    size:(root.telal,conv.cm(3))
                    color:(0, 0, 1, 1)
    
    
            TabbedPanelItem:
                background_color: (0, 0, 1, 0.7)
                background_normal: ''
                background_disabled_normal:''
                background_down: ''
                background_disabled_down: ''
                font_size: 18
                color: (1,1,1,1)        
                text: 'Home'
                Label:
                    text: 'Home tab content area'
            TabbedPanelItem:
                background_color: (0, 0, 1, 0.7)
                background_normal: ''
                background_disabled_normal:''
                background_down: ''
                background_disabled_down: ''
                font_size: 18
                color: (1,1,1,1)        
                text: 'Pass'
                Label:
                    text: 'Pass tab content area'
            TabbedPanelItem:
                background_color: (0, 0, 1, 0.7)
                background_normal: ''
                background_disabled_normal:''
                background_down: ''
                background_disabled_down: ''
                font_size: 18
                color: (1,1,1,1)        
                text: 'Fotos'
                Label:
                    text: 'Fotos tab content area'    
    


Answer: Me and some other people I know had the same problem, and we got it fixed by
upgrading to kivy 1.9.2_dev.

Try changing requirements to `requirements: kivy==master, ...`

