[iOS开发] opencv库冲突 cv::Exception

项目中有引用insta360SDK采集图片,使用opencv库进行图像处理,但是发现图片无法读取,导致后续处理crash

读取图片代码:

cv::imread(@"var/image.png")
cv::resize(123)

crash 截图如下:

问题原因:

opencv库和insta360SDK冲突

解决办法:修改link顺序

• 1 如果是直接拖入工程引用
  修改Build Phases 中 link Binary With Libraries 调整opencv库和insta360SDK顺序
• 2 如果是pod引入(我就是这样的),需要在podfile里写脚本修改
  Pods-XXX.debug.xcconfig 中的OTHER_LDFLAGS value中framework顺序,脚本奉上

post_install do |installer|
  puts "Updating "
    installer.pods_project.targets.each do |target|
      puts "Updating "
        if target.name == "Pods-CaptureSDKDemo"
            puts "Updating #{target.name} OTHER_LDFLAGS"
            target.build_configurations.each do |config|
                xcconfig_path = config.base_configuration_reference.real_path

                # read from xcconfig to build_settings dictionary
                build_settings = Hash[*File.read(xcconfig_path).lines.map{|x| x.split(/\s*=\s*/, 2)}.flatten]

                # modify OTHER_LDFLAGS
                vlc_flag = ' -framework "INSCoreMedia"'
                build_settings['OTHER_LDFLAGS'].gsub!(vlc_flag, "")
                build_settings['OTHER_LDFLAGS'].gsub!("\n", "")
                build_settings['OTHER_LDFLAGS'] += vlc_flag + "\n"

                # write build_settings dictionary to xcconfig
                File.open(xcconfig_path, "w") do |file|
                  build_settings.each do |key,value|
                    file.write(key + " = " + value)
                  end
                end
            end
        end
    end
end

修改.xcconfig详细见链接