Undefined symbols for architecture armv7:
"_kCGImageSourceThumbnailMaxPixelSize", referenced from:
+[UIImage(WBSDKResize) wbsdk_resizeImageToMaxSize:sourcePath:] in libWeiboSDK.a(UIImage+WBSDKResize.o)
"_kCGImageSourceCreateThumbnailWithTransform", referenced from:
+[UIImage(WBSDKResize) wbsdk_resizeImageToMaxSize:sourcePath:] in libWeiboSDK.a(UIImage+WBSDKResize.o)
"_kCGImageSourceCreateThumbnailFromImageAlways", referenced from:
+[UIImage(WBSDKResize) wbsdk_resizeImageToMaxSize:sourcePath:] in libWeiboSDK.a(UIImage+WBSDKResize.o)
"_kCGImagePropertyPixelHeight", referenced from:
+[UIImage(WBSDKResize) wbsdk_imageSizeWithoutLoadingWithPath:] in libWeiboSDK.a(UIImage+WBSDKResize.o)
"_kCGImagePropertyPixelWidth", referenced from:
+[UIImage(WBSDKResize) wbsdk_imageSizeWithoutLoadingWithPath:] in libWeiboSDK.a(UIImage+WBSDKResize.o)
"_CGImageSourceCopyPropertiesAtIndex", referenced from:
+[UIImage(WBSDKResize) wbsdk_imageSizeWithoutLoadingWithPath:] in libWeiboSDK.a(UIImage+WBSDKResize.o)
"_CGImageSourceCreateWithURL", referenced from:
+[UIImage(WBSDKResize) wbsdk_resizeImageToMaxSize:sourcePath:] in libWeiboSDK.a(UIImage+WBSDKResize.o)
+[UIImage(WBSDKResize) wbsdk_imageSizeWithoutLoadingWithPath:] in libWeiboSDK.a(UIImage+WBSDKResize.o)
"_CGImageSourceCreateThumbnailAtIndex", referenced from:
+[UIImage(WBSDKResize) wbsdk_resizeImageToMaxSize:sourcePath:] in libWeiboSDK.a(UIImage+WBSDKResize.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code (use -v to see invocation)
SDK增加了图片处理功能，因此需要引入imageio这个框架
imageio.framework 包含在IOS SDK里，可以直接导入
