問題描述

Pod集成移動監控引入FBRetainCycleDetector，會出現以下問題：

• 問題一：FBRetainCycleDetector編譯報錯Cannot initialize a parameter of type 'id<NSCopying> _Nonnull' with an rvalue of type 'Class'。

• 問題二：應用切換到到后臺就報錯。

解決方案

在Podfile的末尾添加以下內容：

post_install do|installer|
   #解決問題一
   find_and_replace("Pods/FBRetainCycleDetector/FBRetainCycleDetector/Layout/Classes/FBClassStrongLayout.mm",
       "layoutCache[currentClass] = ivars;", "layoutCache[(id)currentClass] = ivars;")
   #解決問題二
   find_and_replace("Pods/FBRetainCycleDetector/fishhook/fishhook.c",
   "indirect_symbol_bindings[i] = cur->rebindings[j].replacement;", "if (i < (sizeof(indirect_symbol_bindings) /
        sizeof(indirect_symbol_bindings[0]))) { \n indirect_symbol_bindings[i]=cur->rebindings[j].replacement; \n }")
end

def find_and_replace(dir, findstr, replacestr)
  Dir[dir].each do |name|
    FileUtils.chmod("+w",name) #add
      text = File.read(name)
      replace = text.gsub(findstr,replacestr)
      if text != replace
         puts "Fix: " + name
         File.open(name, "w") { |file| file.puts replace }
         STDOUT.flush
      end
  end
  Dir[dir + '*/'].each(&method(:find_and_replace))
end

系統顯示類似如下。

再重新執行Pod install。

適用于

• 崩潰分析

• 性能分析