Introducción a la programación en Python para Android

sudo apt-add-repository ppa:kivy-team/kivy
sudo apt-get install python-kivy

sudo apt-get install python-setuptools python-pygame python-opengl python-gst0.10 python-enchant gstreamer0.10-plugins-good cython python-dev build-essential mesa-common-dev libgl1-mesa-dev libgles2-mesa-dev

sudo pip install Cython==0.17.1

sudo easy_install pyrex

sudo easy_install kivy

vi ~/.bashrc

export ANDROIDSDK="/opt/android-sdk-linux_86″
export ANDROIDNDK="/opt/android-ndk-r8″
export ANDROIDNDKVER=r8
export ANDROIDAPI=14

source ~/.bashrc

sudo apt-get install build-essential patch git-core ccache

sudo pip install Cython==0.17.1

git clone git://github.com/kivy/python-for-android.git

./distribute.sh -m "kivy"

$ vi kivydemo-for-android/touchtracer/main.py

import kivy
kivy.require('1.0.6')
 
from kivy.app import App
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.label import Label
from kivy.graphics import Color, Rectangle, Point, GraphicException
from random import random
from math import sqrt
 
 
def calculate_points(x1, y1, x2, y2, steps=5):
    dx = x2 - x1
    dy = y2 - y1
    dist = sqrt(dx * dx + dy * dy)
    if dist < steps:
        return None
    o = []
    m = dist / steps
    for i in xrange(1, int(m)):
        mi = i / m
        lastx = x1 + dx * mi
        lasty = y1 + dy * mi
        o.extend([lastx, lasty])
    return o
 
 
class Touchtracer(FloatLayout):
 
    def on_touch_down(self, touch):
        win = self.get_parent_window()
        ud = touch.ud
        ud['group'] = g = str(touch.uid)
        with self.canvas:
            ud['color'] = Color(random(), 1, 1, mode='hsv', group=g)
            ud['lines'] = (
                Rectangle(pos=(touch.x, 0), size=(1, win.height), group=g),
                Rectangle(pos=(0, touch.y), size=(win.width, 1), group=g),
                Point(points=(touch.x, touch.y), source='particle.png',
                      pointsize=5, group=g))
 
        ud['label'] = Label(size_hint=(None, None))
        self.update_touch_label(ud['label'], touch)
        self.add_widget(ud['label'])
        touch.grab(self)
        return True
 
    def on_touch_move(self, touch):
        if touch.grab_current is not self:
            return
        ud = touch.ud
        ud['lines'][0].pos = touch.x, 0
        ud['lines'][1].pos = 0, touch.y
 
        points = ud['lines'][2].points
        oldx, oldy = points[-2], points[-1]
        points = calculate_points(oldx, oldy, touch.x, touch.y)
        if points:
            try:
                lp = ud['lines'][2].add_point
                for idx in xrange(0, len(points), 2):
                    lp(points[idx], points[idx+1])
            except GraphicException:
                pass
 
        ud['label'].pos = touch.pos
        import time
        t = int(time.time())
        if t not in ud:
            ud[t] = 1
        else:
            ud[t] += 1
        self.update_touch_label(ud['label'], touch)
 
    def on_touch_up(self, touch):
        if touch.grab_current is not self:
            return
        touch.ungrab(self)
        ud = touch.ud
        self.canvas.remove_group(ud['group'])
        self.remove_widget(ud['label'])
 
    def update_touch_label(self, label, touch):
        label.text = 'ID: %s\nPos: (%d, %d)\nClass: %s' % (
            touch.id, touch.x, touch.y, touch.__class__.__name__)
        label.texture_update()
        label.pos = touch.pos
        label.size = label.texture_size[0] + 20, label.texture_size[1] + 20
 
 
class TouchtracerApp(App):
    title = 'Touchtracer'
    icon = 'icon.png'
 
    def build(self):
        return Touchtracer()
 
    def on_pause(self):
        return True
 
if __name__ in ('__main__', '__android__'):
    TouchtracerApp().run()

cd dist/default

./build.py --package org.test.touchtracer --name touchtracer --version 1.0 --dir ~/code/kivydemo-for-android/touchtracer debug

if __name__ in ('__main__', '__android__'):
    YourApp().run()

export PATH=${PATH}:/opt/android-sdk-linux/platform-tools
export PATH=${PATH}:/opt/android-sdk-linux/tools

./distribute.sh -m "kivy"

./distribute.sh -m "kivy"