title: iOS when i use the framework in my project, it can build success ,but the method didn't work.the invoke do nothing at all
body: <p>I built a dynamic framework, and I added it to my sample project. It builds and runs well. However, when the sample call the method in framework, it did nothing, and I did not get any error or exception.</p>
  
  <pre><code>+(id)getInstance{
  printf("000000");
  NSLog(@"000000");
  @synchronized(self){  //
      NSLog(@"11111");
      printf("11111");
      if (!client) {
          NSLog(@"2222");
          [BlueManager getInstance];
         client =  [[self alloc] init]; //
          NSLog(@"333");
      }
  }
  NSLog(@"client point:%@",client);
  //printf("444444");
  return client;}
  </code></pre>
  
  <p>Here's the sample:</p>
  
  <pre><code> NSLog(@"ssssssss");
  _client = [Client getInstance];
  
  _client.initDelegate = self;
  [_client initSDK:1 promotion:@"1000" key:@"2_3DAF68786000000000000000000" language:@"en"];   // [client ini]
  </code></pre>
  
  <p>The message "ssssssss" can output on the window, but the function <code>getInstance</code> does not output, and the <code>_client</code> is nil, when it executes to the line of code <code>_client.initDelegate = self</code>;</p>
  
  <p>This framework worked well few days ago, but I can't remember what have I changed in the configuration of the Xcode, I have dealt with this problem for two days! </p>