Created an accelerometer example. Uses garden graph to plot the values

examples/accelerometer/basic/README

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+Basic acccelerometer example.
+
+
+Python-for-android compilation:
+
+	./distribute.sh -m 'kivy plyer'
+	cd dist/default
+	./build.py --org.test.accelsimpleexample --name "Kivy Basic Accelerometer" \
+		--dir /path/to/plyer/examples/accelerometer/basic --version 1.0 \
+		debug installd 
+
+
+Buildozer:
+
+	cd /path/to/plyer/examples/accelerometer/basic
+	# edit the buildozer.spec if required, then
+	buildozer android debug deploy run

examples/accelerometer/basic/accelerometertest.kv

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+#:kivy 1.8.0
+<AccelerometerTest>:
+    BoxLayout:
+        orientation: 'vertical'
+
+        Label:
+            id: x_label
+            text: 'X: '
+
+        Label:
+            id: y_label
+            text: 'Y: '
+
+        Label:
+            id: z_label
+            text: 'Z: '
+
+        Label:
+            id: accel_status
+            text: ''
+
+        BoxLayout:
+            size_hint_y: None
+            height: '48dp'
+            padding: '4dp'
+
+            ToggleButton:
+                id: toggle_button
+                text: 'Start accelerometer'
+                on_press: root.do_toggle()

examples/accelerometer/basic/buildozer.spec

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+[app]
+
+# (str) Title of your application
+title = Kivy Basic Accelerometer
+
+# (str) Package name
+package.name = accelbasicexample
+
+# (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) 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.regex = __version__ = '(.*)'
+# version.filename = %(source.dir)s/main.py
+
+# (str) Application versioning (method 2)
+version = 1.0
+
+# (list) Application requirements
+requirements = plyer,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, portrait or all)
+orientation = portrait
+
+# (bool) Indicate if the application should be fullscreen or not
+fullscreen = 0
+
+
+#
+# Android specific
+#
+
+# (list) Permissions
+# android.permissions = android.hardware.sensor.accelerometer
+
+# (int) Android API to use
+#android.api = 14
+
+# (int) Minimum API required (8 = Android 2.2 devices)
+#android.minapi = 8
+
+# (int) Android SDK version to use
+#android.sdk = 21
+
+# (str) Android NDK version to use
+#android.ndk = 9
+
+# (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) 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
+
+# (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 =
+
+#
+# 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
+
+
+# -----------------------------------------------------------------------------
+# 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

examples/accelerometer/basic/main.py

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+'''
+Basic accelerometer example.
+'''
+
+from kivy.lang import Builder
+from kivy.app import App
+from kivy.properties import ObjectProperty
+from kivy.uix.boxlayout import BoxLayout
+from kivy.clock import Clock
+
+from plyer import accelerometer
+
+class AccelerometerTest(BoxLayout):
+    def __init__(self):
+        super(AccelerometerTest, self).__init__()
+        self.sensorEnabled = False
+
+    def do_toggle(self):
+        try:
+            if not self.sensorEnabled:
+                accelerometer.enable()
+                Clock.schedule_interval(self.get_acceleration, 1 / 20.)
+
+                self.sensorEnabled = True
+                self.ids.toggle_button.text = "Stop Accelerometer"
+            else:
+                accelerometer.disable()
+                Clock.unschedule(self.get_acceleration)
+
+                self.sensorEnabled = False
+                self.ids.toggle_button.text = "Start Accelerometer"
+        except NotImplementedError:
+            import traceback; traceback.print_exc()
+            self.ids.accel_status.text = "Accelerometer is not implemented for your platform"
+
+    def get_acceleration(self, dt):
+        val = accelerometer.acceleration
+
+        self.ids.x_label.text = "X: " + str(val[0])
+        self.ids.y_label.text = "Y: " + str(val[1])
+        self.ids.z_label.text = "Z: " + str(val[2])
+
+class AccelerometerTestApp(App):
+    def build(self):
+        return AccelerometerTest()
+
+if __name__ == '__main__':
+    AccelerometerTestApp().run()

examples/accelerometer/using_graph/README

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+Python-for-android compilation:
+
+	./distribute.sh -m 'kivy plyer'
+	cd dist/default
+	./build.py --org.test.accelexample --name "Kivy Accelerometer" \
+		--dir /path/to/plyer/examples/accelerometer/using_graph --version 1.0 \
+		debug installd 
+
+
+Buildozer:
+
+	cd /path/to/plyer/examples/accelerometer/using_graph
+	# edit the buildozer.spec if required, then
+	buildozer android debug deploy run
+
+
+This example uses Garden Graph widget by matham. Available at https://github.com/kivy-garden/garden.graph. The required files are present it ./libs/garden/garden.graph. If you need to update these files, use:
+	cd /path/to/plyer/examples/accelerometer/using_graph
+	/path/to/kivy_instalation/kivy/tools/garden install --app graph

examples/accelerometer/using_graph/accelerometerdemo.kv

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+#:kivy 1.8.0
+<AccelerometerDemo>:
+    BoxLayout:
+        orientation: 'vertical'
+        padding: 20
+
+        Graph:
+            size_hint_y: 0.8
+            id: graph_plot
+            xlabel:'Time'
+            ylabel:'Value'
+            y_grid_label: True
+            x_grid_label: True
+            padding: 5
+            xmin:0
+            xmax:100
+            ymin:-15
+            ymax:20
+
+        Button:
+            id: toggle_button
+            text: 'Start Accelerometer'
+            size_hint_y: 0.2
+            on_press: root.do_toggle()
+
+<ErrorPopup>:
+    size_hint: .7, .4
+    title: "Error"
+
+    BoxLayout:
+        orientation: 'vertical'
+        padding: 10
+        spacing: 20
+
+        Label:
+            size_hint_y: 0.4
+            text: "This feature has not yet been implemented on this platform."
+        Button:
+            text: 'Dismiss'
+            size_hint_y: 0.4
+            on_press: root.dismiss()
+