Merge pull request xhzengAIB#1 from xhzengAIB/master

hanchunlong · hanchunlong · commit 6d7544944bce · 2014-12-23T09:30:50.000+08:00
合并原作者的更新内容
diff --git a/MessageDisplayKit.podspec b/MessageDisplayKit.podspec
@@ -1,11 +1,11 @@
 Pod::Spec.new do |s|
   s.name         = "MessageDisplayKit"
-  s.version      = "0.2.7"
+  s.version      = "0.2.8"
   s.summary      = "An IM App like WeChat App has to send text, pictures, audio, video, location messaging, managing address book, more interesting features."
   s.homepage     = "https://github.com/xhzengAIB/MessageDisplayKit"
   s.license      = "MIT"
   s.authors      = { "Jack" => "xhzengAIB@gmail.com" }
-  s.source       = { :git => "https://github.com/xhzengAIB/MessageDisplayKit.git", :tag => "v0.2.7" }
+  s.source       = { :git => "https://github.com/xhzengAIB/MessageDisplayKit.git", :tag => "v0.2.8" }
   s.frameworks   = 'Foundation', 'CoreGraphics', 'UIKit', 'MobileCoreServices', 'AVFoundation', 'CoreLocation', 'MediaPlayer', 'CoreMedia', 'CoreText', 'AudioToolbox'
   s.platform     = :ios, '6.0'
   s.source_files = 'MessageDisplayKit/Classes/**/*.{h,m}'
diff --git a/MessageDisplayKit/Classes/Views/MessageContentViews/XHBubblePhotoImageView.m b/MessageDisplayKit/Classes/Views/MessageContentViews/XHBubblePhotoImageView.m
@@ -55,16 +55,24 @@ - (void)configureMessagePhoto:(UIImage *)messagePhoto thumbnailUrl:(NSString *)t
             if ([url.absoluteString isEqualToString:thumbnailUrl]) {
 
                 if (CGRectEqualToRect(weakSelf.bounds, CGRectZero)) {
-                    weakSelf.semaphore = dispatch_semaphore_create(0);
-                    dispatch_semaphore_wait(weakSelf.semaphore, DISPATCH_TIME_FOREVER);
-                    weakSelf.semaphore = nil;
+                    if (weakSelf) {
+                        weakSelf.semaphore = dispatch_semaphore_create(0);
+                        dispatch_semaphore_wait(weakSelf.semaphore, DISPATCH_TIME_FOREVER);
+                        weakSelf.semaphore = nil;
+                    }
                 }
                 
-                image = [image thumbnailImage:CGRectGetWidth(weakSelf.bounds) * 2 transparentBorder:0 cornerRadius:0 interpolationQuality:1.0];
+                // if image not nil
                 if (image) {
+                    // scale image
+                    image = [image thumbnailImage:CGRectGetWidth(weakSelf.bounds) * 2 transparentBorder:0 cornerRadius:0 interpolationQuality:1.0];
                     dispatch_async(dispatch_get_main_queue(), ^{
-                        weakSelf.messagePhoto = image;
-                        [weakSelf.activityIndicatorView stopAnimating];
+                        // if image not nil
+                        if (image) {
+                            // show image
+                            weakSelf.messagePhoto = image;
+                            [weakSelf.activityIndicatorView stopAnimating];
+                        }
                     });
                 }
             }
diff --git a/README.md b/README.md
@@ -9,6 +9,8 @@ An IM APP like WeChat App has to send text, pictures, audio, video, location mes
 
 It's ok if you don't understand how the code works. Most code has comments, which I believe will help you a lot. Feel free to [open an issue] (https://github.com/xhzengAIB/MessageDisplayKit/issues?state=open) if you have any questions. I will do my best to answer them.
 
+很多朋友说不能直接编译该项目的主要工程，其实原因很简单，只是没有打包静态库的插件，需要安装一个Xcode插件，点击以下链接[iOS-Universal-Framework](https://github.com/kstenerud/iOS-Universal-Framework)，安装方法很简单的，里面有教程，只要安装了该插件后，重启你的xcode，就可以开始编译了！
+
 ## 开源许可协议
 很多人和我说，你不知道什么是开源许可协议，其实我也不清楚他是不知道还是不想知道，作为一个开发者，不懂得尊重别人的成果，那你到底想怎样，你自己最清楚。                      
 说一件事吧！曾经我也这么做了，没尊重作者的成果，最终被人鄙视了一段时间，于是我删除了那个开源库，现在终于明白，尊重这个词，这对于别人来说是一个认可，我们不可以剥夺这份利益。
