102 lines
3.2 KiB
ReStructuredText
102 lines
3.2 KiB
ReStructuredText
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.. _launcher:
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Launcher
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========
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The Kivy Launcher is an Android application that can run any Kivy app
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stored in the `kivy` folder on the SD Card. You can download the latest stable
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version for your android device from the
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`Play Store <https://play.google.com/store/apps/details?id=org.kivy.pygame>`_.
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The stable launcher comes with various Python packages and
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permissions, usually listed in the description in the store. Those
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aren't always enough for an application to run or even launch if you
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work with other dependencies that are not packaged.
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The Kivy Launcher is intended for quick and simple testing. For
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anything more advanced we recommend building your own APK with
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python-for-android.
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Building
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--------
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The Kivy Launcher is built using python-for-android. To get the most recent
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versions of packages you need to clean them first, so that the packager won't
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grab an old (cached) package instead of a fresh one.
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.. highlight:: none
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::
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p4a clean_download_cache requirements
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p4a clean_dists && p4a clean_builds
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p4a apk --requirements=requirements \
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--permission PERMISSION \
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--package=the.package.name \
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--name="App name" \
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--version=x.y.z \
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--android_api XY \
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--bootstrap=sdl2 \
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--launcher \
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--minsdk 13
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.. note::
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`--minsdk 13` is necessary for the new toolchain, otherwise you'll be able
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to run apps only in `landscape` orientation.
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.. warning::
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Do not use any of `--private`, `--public`, `--dir` or other arguments for
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adding `main.py` or `main.pyc` to the app. The argument `--launcher` is
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above them and tells the p4a to build the launcher version of the APK.
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Usage
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-----
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Once the launcher is installed, you need to create a folder in your
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external storage directory (e.g. ``/storage/emulated/0`` or
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``/sdcard``) - this is normally your 'home' directory in a file
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browser. Each new folder inside `kivy` represents a
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separate application::
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/sdcard/kivy/<yourapplication>
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Each application folder must contain an
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`android.txt` file. The file has to contain three basic
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lines::
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title=<Application Title>
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author=<Your Name>
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orientation=<portrait|landscape>
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The file is editable so you can change for example orientation or
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name. These are the only options dynamically configurable here,
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although when the app runs you can call the Android API with PyJNIus
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to change other settings.
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After you set your `android.txt` file, you can now run the launcher
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and start any available app from the list.
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To differentiate between apps in ``/sdcard/kivy``, you can include an icon
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named ``icon.png`` in the folder. The icon should be a square.
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Release on the market
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---------------------
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Launcher is released on Google Play with each new Kivy stable
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branch. The master branch is not suitable for a regular user because
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it changes quickly and needs testing.
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Source code
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-----------
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.. |kivy| replace:: sdl2 org.kivy.android
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.. _sdl2:
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https://github.com/kivy/python-for-android/tree/master/\
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pythonforandroid/bootstraps/sdl2/build/src/org/kivy/android
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If you feel confident, feel free to improve the launcher. You can find the
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source code at |renpy|_ or at |kivy|_.
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