{"blocks":[{"type":"paragraph","data":{"text":"Рассказывает Энтони Шоу"}},{"type":"separator","data":{"text":"***"}},{"type":"paragraph","data":{"text":"Вряд ли кто-то вспоминает о Python, когда речь заходит о мобильной разработке. И очень зря, у нас даже есть статья, посвященная этому вопросу: для Python тоже существуют инструменты, способные преобразовать ваш код для работы под iOS, Android или Windows Phone."}},{"type":"paragraph","data":{"text":"В этом руководстве я покажу вам, как создать простой пульт (роль пульта будет выполнять iPhone) для телевизоров Panasonic Viera."}},{"type":"paragraph","data":{"text":"Нам понадобятся:"}},{"type":"list","data":{"items":["Xcode, так как мы пишем для iPhone, но пульт также можно сделать и для Android, об этом мы поговорим в конце;","Желательно Python 3.5;","Телевизор Panasonic Viera с возможностью подключения к сети."],"style":"unordered"}},{"type":"header3","data":{"level":3,"text":"Создаем проект"}},{"type":"paragraph","data":{"text":"Загружаем себе Briefcase — инструмент для конвертирования проект на Python в нативные приложения. Сделать это можно следующим образом: pip install briefcase. Далее создаем новую папку для нашего проекта mkdir tv_remote, внутри нее создаем папку Remote с файлами __init__.py и app.py. __init__.py может быть пустым, а вот в app.py нужно написать следующее:"}},{"type":"code","data":{"code":"import toga\r\n\r\n\r\ndef button_handler(widget):\r\n print(\"hello\")\r\n\r\n\r\ndef build(app):\r\n box = toga.Box()\r\n\r\n button = toga.Button('Hello world', on_press=button_handler)\r\n button.style.set(margin=50)\r\n box.add(button)\r\n\r\n return box\r\n\r\n\r\nif __name__ == '__main__':\r\n app = toga.App('First App', 'org.pybee.helloworld', startup=build)\r\n app.main_loop()","language":"python lazy-code"}},{"type":"paragraph","data":{"text":"Теперь создадим файл setup.py. В нем мы будем описывать для какой платформы создается приложение. Обозначим pip пакеты, которые мы будем использовать. Нам понадобятся библиотека toga UI и библиотека для управления телевизором — PyViera."}},{"type":"code","data":{"code":"from setuptools import setup, find_packages\r\n\r\nsetup(name='Remote',\r\n version = '0.1',\r\n packages = find_packages(),\r\n options = {\r\n 'app': {\r\n 'formal_name': 'TV Remote',\r\n 'bundle': 'org.tv.remote'\r\n },\r\n 'ios': {\r\n 'app_requires': [\r\n 'toga-ios',\r\n 'git+https://github.com/tonybaloney/pyviera-1.git@master#egg-info=pyviera'\r\n ]\r\n }\r\n }\r\n)","language":"python lazy-code"}},{"type":"paragraph","data":{"text":"После этого ваша директория должна выглядеть следующим образом:"}},{"type":"image","data":{"file":{"id":28442,"url":"https://media.tproger.ru/uploads/2017/02/python_tv_remote_1-1.png"},"alt":"","title":"","caption":"","stretched":false,"withBackground":false,"withBorder":false,"width":725,"height":255,"optimizedFile":{"original":"https://media.tproger.ru/uploads/2017/02/python_tv_remote_1-1.png","alt":"Создаем пульт для телевизора при помощи Python и смартфона 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2","dimensions":{"width":800,"height":414},"additionalSizes":{"srcSet":[{"url":"https://tproger.ru/signed_image/RHM0zCPu9oY7SHZv2NwX0i5R44QHjl9vhmZ_oAC8mes/rs:fill:766:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzIuanBlZw=","dpr":1,"width":766},{"url":"https://tproger.ru/signed_image/bBoDVNed6myvDlZ_zI8s3Ylr9gjdqEj3gqmLiyH_Ks0/rs:fill:1532:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzIuanBlZw=","dpr":1,"width":1532},{"url":"https://tproger.ru/signed_image/lq9zb8rvIYkcqWvaYqdBR0lC9flC9HehYYbBhJcOGrc/rs:fill:686:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzIuanBlZw=","dpr":1,"width":686},{"url":"https://tproger.ru/signed_image/9vS8aQchmDgq0poQAUWBARUeNhCnI6c5w31jIiEHIpQ/rs:fill:1372:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzIuanBlZw=","dpr":1,"width":1372},{"url":"https://tproger.ru/signed_image/lm_ov5vjrdFFkpio58vNhdJOV8ZcEiqRp9qvIsLcF40/rs:fill:636:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzIuanBlZw=","dpr":1,"width":636},{"url":"https://tproger.ru/signed_image/B6uGLSNyBe2wMxPnl2Wh7rPei3tnouTnqJ_XLiQ7xzA/rs:fill:1272:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzIuanBlZw=","dpr":1,"width":1272},{"url":"https://tproger.ru/signed_image/aiSojzoBmMfnJ5YAL5NATjyrUEP6el4wn9GsG-0zpzY/rs:fill:466:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzIuanBlZw=","dpr":1,"width":466},{"url":"https://tproger.ru/signed_image/p9oMZRqh5rzqPqPlxrs8ccMAkqbsjGwQMmbm331RQ88/rs:fill:932:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzIuanBlZw=","dpr":1,"width":932}],"sizes":[{"media":"(min-width: 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Создастся симулятор iPhone и наше приложение."}},{"type":"image","data":{"file":{"id":28444,"url":"https://media.tproger.ru/uploads/2017/02/python_tv_remote_3.jpeg"},"alt":"","title":"","caption":"","stretched":false,"withBackground":false,"withBorder":false,"width":800,"height":713,"optimizedFile":{"original":"https://media.tproger.ru/uploads/2017/02/python_tv_remote_3.jpeg","alt":"Создаем пульт для телевизора при помощи Python и смартфона 3","dimensions":{"width":800,"height":713},"additionalSizes":{"srcSet":[{"url":"https://tproger.ru/signed_image/gDFG2e87hlGKwJFmWsuonzojUtMh6aj5VIicu4KlTe8/rs:fill:766:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzMuanBlZw=","dpr":1,"width":766},{"url":"https://tproger.ru/signed_image/zx5G5WwOHu5XcaQSKGQhel8AFcdglR8lUvYzl61M-BY/rs:fill:1532:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzMuanBlZw=","dpr":1,"width":1532},{"url":"https://tproger.ru/signed_image/mTxx7J9jCNbdh4N_UC-dI5Jy0EtpD3n8y7W0gKWJE08/rs:fill:686:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzMuanBlZw=","dpr":1,"width":686},{"url":"https://tproger.ru/signed_image/xtKsfOrqNZ6y6UWjejkhyBmaQp0MgnUuvy0tZ8DC9OE/rs:fill:1372:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzMuanBlZw=","dpr":1,"width":1372},{"url":"https://tproger.ru/signed_image/BeC8tywCwCG4EbIiceGoynJrSdGo_EYvQsZt0lHomWs/rs:fill:636:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzMuanBlZw=","dpr":1,"width":636},{"url":"https://tproger.ru/signed_image/ziSVk8B53CAwyk1GzhLLcSswlAhxTzjtFkOhnQ2oQyE/rs:fill:1272:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzMuanBlZw=","dpr":1,"width":1272},{"url":"https://tproger.ru/signed_image/h_hrq7SEbct7-qnWmxzPq9R4YzMwhEJyxYFMu8mMz28/rs:fill:466:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzMuanBlZw=","dpr":1,"width":466},{"url":"https://tproger.ru/signed_image/mtK8gdM-iV1aRTeG02phbTrO-3QRG_Igp9zLsGS83t8/rs:fill:932:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzMuanBlZw=","dpr":1,"width":932}],"sizes":[{"media":"(min-width: 1441px)","size":"766px"},{"media":"(min-width: 1281px)","size":"686px"},{"media":"(min-width: 1281px)","size":"766px"},{"media":"(min-width: 961px)","size":"766px"},{"media":"(min-width: 671px)","size":"636px"},{"media":"(min-width: 500px)","size":"466px"}]}}}},{"type":"header3","data":{"level":3,"text":"Создаем пульт"}},{"type":"paragraph","data":{"text":"Давайте добавим кнопку (цифра 5) для переключения канала."}},{"type":"code","data":{"code":"import toga\r\nfrom pyviera import Viera\r\n\r\ntvs = Viera.discover()\r\n\r\ndef channel_5(widget):\r\n global tvs\r\n if len(tvs) == 0:\r\n tvs = Viera.discover()\r\n tvs[0].num(5)\r\n\r\n\r\ndef build(app):\r\n box = toga.Box()\r\n\r\n button = toga.Button('5', on_press=channel_5)\r\n button.style.set(margin=50)\r\n box.add(button)\r\n\r\n return box\r\n\r\n\r\nif __name__ == '__main__':\r\n app = toga.App('TV Remote', 'org.tv.remote', startup=build) \r\n app.main_loop()","language":"python lazy-code"}},{"type":"paragraph","data":{"text":"Перезапустим приложение. Если все работает, вы должны увидеть следующее сообщение:"}},{"type":"image","data":{"file":{"id":28446,"url":"https://media.tproger.ru/uploads/2017/02/python_tv_remote_4.png"},"alt":"","title":"","caption":"","stretched":false,"withBackground":false,"withBorder":false,"width":800,"height":519,"optimizedFile":{"original":"https://media.tproger.ru/uploads/2017/02/python_tv_remote_4.png","alt":"Создаем пульт для телевизора при помощи Python и смартфона 4","dimensions":{"width":800,"height":519},"additionalSizes":{"srcSet":[{"url":"https://tproger.ru/signed_image/ukLA0MFyYDcN3Mjbk3mKIb4v8y6tjkcPN8Igsu9WMnU/rs:fill:766:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzQucG5n","dpr":1,"width":766},{"url":"https://tproger.ru/signed_image/b5P2Kv8WOrDe5WNjs7HtKRSlHoqoicqNPh43MwPUyUU/rs:fill:1532:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzQucG5n","dpr":1,"width":1532},{"url":"https://tproger.ru/signed_image/QNoJ2NHsXWUnMHPc3mlXlYYysQCDTgCsZqV7rOM6UMs/rs:fill:686:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzQucG5n","dpr":1,"width":686},{"url":"https://tproger.ru/signed_image/_jlXe2BsWe04sJuvroW5lQy93Telasxy9KOLsuQcU6g/rs:fill:1372:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzQucG5n","dpr":1,"width":1372},{"url":"https://tproger.ru/signed_image/LT7B9dLW6Ns2YoMJ21CW9N9Sxxap-l3B1CE-o7SZVGk/rs:fill:636:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzQucG5n","dpr":1,"width":636},{"url":"https://tproger.ru/signed_image/1upDfjsLLFS4MWd2FEJ05VixYfKK-RVIcJNWo-1etrU/rs:fill:1272:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzQucG5n","dpr":1,"width":1272},{"url":"https://tproger.ru/signed_image/K2DmGACGmjmCA0VzVRX0nc3iwWTLjqANn19B5VTZ6lw/rs:fill:466:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzQucG5n","dpr":1,"width":466},{"url":"https://tproger.ru/signed_image/3OAL1csav7cNH4l2YgdhfELryrU0dRJIUl-HXA9cVjA/rs:fill:932:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzQucG5n","dpr":1,"width":932}],"sizes":[{"media":"(min-width: 1441px)","size":"766px"},{"media":"(min-width: 1281px)","size":"686px"},{"media":"(min-width: 1281px)","size":"766px"},{"media":"(min-width: 961px)","size":"766px"},{"media":"(min-width: 671px)","size":"636px"},{"media":"(min-width: 500px)","size":"466px"}]}}}},{"type":"paragraph","data":{"text":"Теперь включаем телевизор и пробуем нажать цифру 5!"}},{"type":"header3","data":{"level":3,"text":"Создаем остальные кнопки"}},{"type":"paragraph","data":{"text":"Так как Toga позволяет применять CSS стили для выравнивания, мы создадим 5 рядов кнопок и расположим их как на реальном пульте от телевизора."}},{"type":"code","data":{"code":"import toga\r\nfrom colosseum import CSS\r\nfrom pyviera import Viera\r\n\r\ntvs = Viera.discover()\r\n\r\ndef set_channel(widget):\r\n global tvs\r\n channel = int(widget.label)\r\n print(\"Changing to channel {0}\".format(channel))\r\n tvs[0].num(channel)\r\n\r\ndef mute(widget):\r\n global tvs\r\n tvs[0].mute()\r\n\r\ndef build(app):\r\n row_c = toga.Box()\r\n \r\n row_c.add(toga.Button('mute', on_press=mute))\r\n row_c.style.set(flex_direction='row', margin=5, padding_left=60)\r\n\r\n\r\n row_0 = toga.Box()\r\n \r\n row_0.add(toga.Button('1', on_press=set_channel))\r\n row_0.add(toga.Button('2', on_press=set_channel))\r\n row_0.add(toga.Button('3', on_press=set_channel))\r\n row_0.style.set(flex_direction='row', margin=5)\r\n \r\n row_1 = toga.Box()\r\n \r\n row_1.add(toga.Button('4', on_press=set_channel))\r\n row_1.add(toga.Button('5', on_press=set_channel))\r\n row_1.add(toga.Button('6', on_press=set_channel))\r\n row_1.style.set(flex_direction='row', margin=5)\r\n \r\n row_2 = toga.Box()\r\n \r\n row_2.add(toga.Button('7', on_press=set_channel))\r\n row_2.add(toga.Button('8', on_press=set_channel))\r\n row_2.add(toga.Button('9', on_press=set_channel))\r\n row_2.style.set(flex_direction='row', margin=5)\r\n \r\n row_3 = toga.Box()\r\n \r\n row_3.add(toga.Button('0', on_press=set_channel))\r\n row_3.style.set(flex_direction='row', margin=5, padding_left=60)\r\n \r\n box = toga.Box()\r\n box.style.set(flex_direction='column', padding_top=60, padding_left=100)\r\n box.add(row_c)\r\n box.add(row_0)\r\n box.add(row_1)\r\n box.add(row_2)\r\n box.add(row_3)\r\n return box\r\n\r\n\r\nif __name__ == '__main__':\r\n app = toga.App('TV Remote', 'org.tv.remote', startup=build)\r\n app.main_loop()","language":"python lazy-code"}},{"type":"paragraph","data":{"text":"Перезапустим приложение и — вуаля — работающий пульт для телевизора!"}},{"type":"image","data":{"file":{"id":28447,"url":"https://media.tproger.ru/uploads/2017/02/python_tv_remote_5.png"},"alt":"","title":"","caption":"","stretched":false,"withBackground":false,"withBorder":false,"width":311,"height":574,"optimizedFile":{"original":"https://media.tproger.ru/uploads/2017/02/python_tv_remote_5.png","alt":"Создаем пульт для телевизора при помощи Python и смартфона 5","dimensions":{"width":311,"height":574},"additionalSizes":{"srcSet":[{"url":"https://tproger.ru/signed_image/nveGLVOwwo0r9E3aLKFKlQQre4DGQ8Hu28IbuEmMhuI/rs:fill:311:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzUucG5n","dpr":1,"width":311},{"url":"https://tproger.ru/signed_image/YEzQOyLFPkaSwxsL_GNQvUd2YVfWQJz1VZgc2su4izs/rs:fill:622:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzUucG5n","dpr":1,"width":622},{"url":"https://tproger.ru/signed_image/nveGLVOwwo0r9E3aLKFKlQQre4DGQ8Hu28IbuEmMhuI/rs:fill:311:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzUucG5n","dpr":1,"width":311},{"url":"https://tproger.ru/signed_image/YEzQOyLFPkaSwxsL_GNQvUd2YVfWQJz1VZgc2su4izs/rs:fill:622:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzUucG5n","dpr":1,"width":622},{"url":"https://tproger.ru/signed_image/nveGLVOwwo0r9E3aLKFKlQQre4DGQ8Hu28IbuEmMhuI/rs:fill:311:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzUucG5n","dpr":1,"width":311},{"url":"https://tproger.ru/signed_image/YEzQOyLFPkaSwxsL_GNQvUd2YVfWQJz1VZgc2su4izs/rs:fill:622:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzUucG5n","dpr":1,"width":622},{"url":"https://tproger.ru/signed_image/nveGLVOwwo0r9E3aLKFKlQQre4DGQ8Hu28IbuEmMhuI/rs:fill:311:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzUucG5n","dpr":1,"width":311},{"url":"https://tproger.ru/signed_image/YEzQOyLFPkaSwxsL_GNQvUd2YVfWQJz1VZgc2su4izs/rs:fill:622:0:true/cb:vimg_2/f:webp/aHR0cHM6Ly9tZWRpYS50cHJvZ2VyLnJ1L3VwbG9hZHMvMjAxNy8wMi9weXRob25fdHZfcmVtb3RlXzUucG5n","dpr":1,"width":622}],"sizes":[{"media":"(min-width: 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После этого briefcase создаст для вас Android проект."}}]}

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