iOS中Flutter Audio_service依赖问题 [英] Flutter audio_service dependancy issue in iOS

问题描述

我要添加 audio_service 包，以便在后台运行音频.在android中可以使用，但作者尚未在iOS中实现，因此在iOS中运行应用时出现错误.

I'm adding audio_service package for run audio in background. in android it works but author hasn't implement in iOS so getting below error when run app in iOS.

错误:

在iPhone 8 Plus上以调试模式启动lib/main.dart ...正在运行Pod安装...CocoaPods的输出:↳准备

Launching lib/main.dart on iPhone 8 Plus in debug mode... Running pod install... CocoaPods' output: ↳ Preparing

Analyzing dependencies

Inspecting targets to integrate
  Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``)

Finding Podfile changes
  A audio_service
  A audioplayer
  M Flutter
  - audio_player_service
  - url_launcher

Fetching external sources
-> Fetching podspec for `Flutter` from `.symlinks/flutter/ios`
-> Fetching podspec for `audio_player_service` from `.symlinks/plugins/audio_player_service/ios`
-> Fetching podspec for `audio_service` from `.symlinks/plugins/audio_service/ios`
[!] No podspec found for `audio_service` in `.symlinks/plugins/audio_service/ios`

/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/external_sources/path_source.rb:14:in `block in fetch'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/user_interface.rb:85:in `titled_section'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/external_sources/path_source.rb:11:in `fetch'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:697:in `fetch_external_source'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:673:in `block (2 levels) in fetch_external_sources'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:672:in `each'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:672:in `block in fetch_external_sources'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/user_interface.rb:64:in `section'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:671:in `fetch_external_sources'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/installer/analyzer.rb:85:in `analyze'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:243:in `analyze'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:154:in `block in resolve_dependencies'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/user_interface.rb:64:in `section'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:153:in `resolve_dependencies'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/installer.rb:116:in `install!'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/command/install.rb:41:in `run'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/claide-1.0.2/lib/claide/command.rb:334:in `run'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/lib/cocoapods/command.rb:52:in `run'
/usr/local/Cellar/cocoapods/1.5.3/libexec/gems/cocoapods-1.5.3/bin/pod:55:in `<top (required)>'
/usr/local/Cellar/cocoapods/1.5.3/libexec/bin/pod:22:in `load'
/usr/local/Cellar/cocoapods/1.5.3/libexec/bin/pod:22:in `<main>'

CocoaPods错误输出:↳[！]用于生成锁定文件的CocoaPods版本(1.6.0)高于当前可执行文件的版本(1.5.3).可能会出现不兼容的问题.

Error output from CocoaPods: ↳ [!] The version of CocoaPods used to generate the lockfile (1.6.0) is higher than the version of the current executable (1.5.3). Incompatibility issues may arise.

[!] Automatically assigning platform `ios` with version `8.0` on target `Runner` because no platform was specified. Please specify a platform for this target in your Podfile. See `https://guides.cocoapods.org/syntax/podfile.html#platform`.

运行pod安装时出错在iPhone 8 Plus上启动应用程序时出错.

Error running pod install Error launching application on iPhone 8 Plus.

下面是pod文件:

# Uncomment this line to define a global platform for your project
# platform :ios, '9.0'

# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
ENV['COCOAPODS_DISABLE_STATS'] = 'true'

project 'Runner', {
  'Debug' => :debug,
  'Profile' => :release,
  'Release' => :release,
}

def parse_KV_file(file, separator='=')
  file_abs_path = File.expand_path(file)
  if !File.exists? file_abs_path
    return [];
  end
  pods_ary = []
  skip_line_start_symbols = ["#", "/"]
  File.foreach(file_abs_path) { |line|
      next if skip_line_start_symbols.any? { |symbol| line =~ /^\s*#{symbol}/ }
      plugin = line.split(pattern=separator)
      if plugin.length == 2
        podname = plugin[0].strip()
        path = plugin[1].strip()
        podpath = File.expand_path("#{path}", file_abs_path)
        pods_ary.push({:name => podname, :path => podpath});
      else
        puts "Invalid plugin specification: #{line}"
      end
  }
  return pods_ary
end

target 'Runner' do
  # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock
  # referring to absolute paths on developers' machines.
  system('rm -rf .symlinks')
  system('mkdir -p .symlinks/plugins')

  # Flutter Pods
  generated_xcode_build_settings = parse_KV_file('./Flutter/Generated.xcconfig')
  if generated_xcode_build_settings.empty?
    puts "Generated.xcconfig must exist. If you're running pod install manually, make sure flutter packages get is executed first."
  end
  generated_xcode_build_settings.map { |p|
    if p[:name] == 'FLUTTER_FRAMEWORK_DIR'
      symlink = File.join('.symlinks', 'flutter')
      File.symlink(File.dirname(p[:path]), symlink)
      pod 'Flutter', :path => File.join(symlink, File.basename(p[:path]))
    end
  }

  # Plugin Pods
  plugin_pods = parse_KV_file('../.flutter-plugins')
  plugin_pods.map { |p|
    symlink = File.join('.symlinks', 'plugins', p[:name])
    File.symlink(p[:path], symlink)
    pod p[:name], :path => File.join(symlink, 'ios')
  }
end

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings['ENABLE_BITCODE'] = 'NO'
    end
  end
end

在这里，如果p [:name]！='audio_service'

Here I also change pod file to if p[:name] != 'audio_service'

# Plugin Pods
  plugin_pods = parse_KV_file('../.flutter-plugins')
  plugin_pods.map { |p|
    if p[:name] != 'audio_service'
      symlink = File.join('.symlinks', 'plugins', p[:name])
      File.symlink(p[:path], symlink)
      pod p[:name], :path => File.join(symlink, 'ios')
    end
  }

但是没有用.

如何解决此问题?我们可以在subspace.yaml文件中设置限制吗?像这样的依赖项只能安装在android平台上吗?无论如何，我只是想修复它.

How can I solve this issue? Can we put restrictions in subspace.yaml file? like this dependency only install on android platform? anyways I just looking to fix it.

推荐答案

只需删除您的 ios/Podfile.lock 文件，然后在同一目录中运行

Just delete your ios/Podfile.lock file and then, in that same directory, run

pod install

您应该很好.这样可以确保您使用的版本正确.

And you should be good to go. This will make sure you are using the proper version.

这篇关于iOS中Flutter Audio_service依赖问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！