Flutter-Termux

Run Flutter on Termux !

[安装]

# flutter-3.13.3 as example
$ git clone https://github.com/flutter/flutter -b 3.13.3
$ ./install.py --engine engine.tar.gz --dart-sdk dart-sdk.tar.gz flutter

$ flutter --version
Flutter 3.13.3 • channel [user-branch] • unknown source
Framework • revision 2524052335 (11 days ago) •
2023-09-06 14:32:31 -0700
Engine • revision b8d35810e9
Tools • Dart 3.1.1 • DevTools 2.25.0

$ flutter create hello_world && cd hello_world
$ export DISPLAY=:0
$ termux-x11 :0 &
$ LD_LIBRARY_PATH=$PREFIX/lib flutter run

install.py

./install.py -h

usage: install.py [-h] [-c] [-n] [-d DART_SDK] [-e ENGINE] target

patch Flutter on Termux

positional arguments:
  target                path to flutter

options:
  -h, --help            show this help message and exit
  -c, --check           enable version check
  -n, --no-check        disable version check
  -d DART_SDK, --dart-sdk DART_SDK
                        path to dart-sdk
  -e ENGINE, --engine ENGINE
                        path to engine

依赖

$ apt install gtk3 fontconfig

[编译]

Setting up the Engine development environment

$ cd engine
$ DEPOT_TOOLS_UPDATE=0 gclient sync
$ cd src/flutter
$ git reset --hard <engine.version>
$ cd -
$ DEPOT_TOOLS_UPDATE=0 gclient sync -DR --with_branch_heads --with_tags -v

$ cd src
$ ../patch.py -p ../patches .
$ python3 ./flutter/tools/gn  \
      --target-os linux \
      --linux-cpu arm64 \
      --runtime-mode debug \
      --embedder-for-target \
      --no-build-embedder-examples \
      --enable-fontconfig \
      --target-triple aarch64-linux-android \
      --full-dart-sdk \
      --clang \
      --lto \
      --no-goma \
      --no-backtrace \
      --no-enable-unittests \
      --target-toolchain $PREFIX \
      --target-sysroot $PREFIX \
      --no-prebuilt-dart-sdk \
      --gn-args '
         toolchain_prefix="aarch64-linux-android-"
          use_default_linux_sysroot=false
          is_desktop_linux=false
          shell_enable_vulkan=false
          skia_use_vulkan=false
          embedder_enable_vulkan=false
          test_enable_vulkan=false
      '
$ ninja -C out/linux_debug_arm64

[打包]

$ ./engine-install.py -h
usage: engine-install.py [-h] -v VERSION  [-d DEBUG]  [-p PROFILE] [-r RELEASE] output

pack Flutter engine

positional arguments:
  output                install destination

options:
  -h, --help            show this help message
                        and exit
  -v VERSION, --version VERSION
                        engine.version
  -d DEBUG, --debug DEBUG
                        path to
                        linux_debug_arm64
  -p PROFILE, --profile PROFILE
                        parh to
                        linux_profile_arm64
  -r RELEASE, --release RELEASE
                        path to
                        linux_release_arm64

$ ./dart-sdk-install.py
usage: dart-sdk-install.py [-h] [-o OUTPUT] -v VERSION target

pack dart-sdk

positional arguments:
  target                source path

options:
  -h, --help            show this help message
                        and exit
  -o OUTPUT, --output OUTPUT
                        install destination
  -v VERSION, --version VERSION
                        engine.version