bug-fix: use NSCache instead of NSMutableDictionary avoid thread safe issue.

SVGAPlayer.podspec

@@ -2,7 +2,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "SVGAPlayer"
-  s.version      = "1.1.2"
+  s.version      = "1.1.3"
   s.summary      = "SVGAPlayer 是一个高性能的动画播放器"
 
   s.description  = <<-DESC
@@ -13,7 +13,7 @@ Pod::Spec.new do |s|
 
   s.homepage     = "http://code.yy.com/ued/SVGAPlayer"
 
-  s.license      = "Private"
+  s.license      = "Apache 2.0"
  
   s.author       = { "PonyCui" => "cuiminghui1@yy.com" }
   

Source/SVGABezierPath.m

@@ -11,11 +11,11 @@
 @implementation SVGABezierPath
 
 - (void)setValues:(nonnull NSString *)values {
-    static NSMutableDictionary *caches;
+    static NSCache *caches;
     static NSArray *validMethods;
     static dispatch_once_t onceToken;
     dispatch_once(&onceToken, ^{
-        caches = [NSMutableDictionary dictionary];
+        caches = [NSCache new];
         validMethods = @[@"M",@"L",@"H",@"V",@"C",@"S",@"Q",@"R",@"A",@"Z",@"m",@"l",@"h",@"v",@"c",@"s",@"q",@"r",@"a",@"z"];
     });
     if ([caches objectForKey:values] != nil) {