小编Sid*_*han的帖子

我有一个UIButton,这是一个标志.这个徽标按钮将永远发光,但触摸时会停止发光.它就像一个发光的动画.

有什么建议吗？

  Undefined symbols for architecture i386:
 "_OBJC_CLASS_$_CABasicAnimation", referenced from:
 objc-class-ref in UIView+Glow.o
 "_OBJC_CLASS_$_CAMediaTimingFunction", referenced from:
  objc-class-ref in UIView+Glow.o
  "_kCAMediaTimingFunctionEaseInEaseOut", referenced from:
  -[UIView(Glow) startGlowing] in UIView+Glow.o
   ld: symbol(s) not found for architecture i386
   clang: error: linker command failed with exit code 1 (use -v to see invocation)

是否可以在java append data中打开文件a并关闭多次。例如：

 //---- psuedocode
      //class variable declaration 
      FileWriter writer1 = new FileWriter(filename);

      fn1:

         writer.append(data - title);

      fn2:
       while(incomingdata == true){
         writer.append(data)
         writer.flush();
         writer.close()
        }

问题在于while循环。文件已关闭，无法再次打开。任何人都可以帮助我吗？