SVPProgressHUD 与 MBProgressHUD 在Xocde10.2下 Xs Max真机调试卡住问题

最近升级到xcode10.2 之后 项目中使用HUD的时候，出现了卡住的情况，日志输出如下

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测试之后 只发现在iphone Xs Max (也许有更多机型)在连线真机调试时才会出现，不调试的情况下会正常运行。

最后找到问题代码如下

SVP

            [self.hudView addMotionEffect:effectGroup];

MB

        [bezelView addMotionEffect:group];

得出结论 多半是因为 addMotionEffect 方法卡住了主线程

解决思路：

addMotionEffect 效果为添加一个背景视差效果，屏蔽后并不影响HUD的核心动画，则在真机debug时 在iphone xs max时跳过即可

首先获取真机连接xcode调试状态

感谢这位大兄弟的博客 https://www.jianshu.com/p/a9199c511cd8

#include 
#include 
#include 
#include 
#include 

static bool AmIBeingDebugged(void)
    // Returns true if the current process is being debugged (either 
    // running under the debugger or has a debugger attached post facto).
{
    int                 junk;
    int                 mib[4];
    struct kinfo_proc   info;
    size_t              size;

    // Initialize the flags so that, if sysctl fails for some bizarre 
    // reason, we get a predictable result.

    info.kp_proc.p_flag = 0;

    // Initialize mib, which tells sysctl the info we want, in this case
    // we're looking for information about a specific process ID.

    mib[0] = CTL_KERN;
    mib[1] = KERN_PROC;
    mib[2] = KERN_PROC_PID;
    mib[3] = getpid();

    // Call sysctl.

    size = sizeof(info);
    junk = sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, NULL, 0);
    assert(junk == 0);

    // We're being debugged if the P_TRACED flag is set.

    return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
}

再判断当前机型是否为iphoneXs Max

//引入头文件
#import 

- (NSString *)getPhoneType{
    struct utsname systemInfo;
    uname(&systemInfo);
    NSString *phoneType = [NSString stringWithCString: systemInfo.machine encoding:NSASCIIStringEncoding];
    
    if([phoneType  isEqualToString:@"iPhone1,1"])  return @"iPhone 2G";
    
    if([phoneType  isEqualToString:@"iPhone1,2"])  return @"iPhone 3G";
    
    if([phoneType  isEqualToString:@"iPhone2,1"])  return @"iPhone 3GS";
    
    if([phoneType  isEqualToString:@"iPhone3,1"])  return @"iPhone 4";
    
    if([phoneType  isEqualToString:@"iPhone3,2"])  return @"iPhone 4";
    
    if([phoneType  isEqualToString:@"iPhone3,3"])  return @"iPhone 4";
    
    if([phoneType  isEqualToString:@"iPhone4,1"])  return @"iPhone 4S";
    
    if([phoneType  isEqualToString:@"iPhone5,1"])  return @"iPhone 5";
    
    if([phoneType  isEqualToString:@"iPhone5,2"])  return @"iPhone 5";
    
    if([phoneType  isEqualToString:@"iPhone5,3"])  return @"iPhone 5c";
    
    if([phoneType  isEqualToString:@"iPhone5,4"])  return @"iPhone 5c";
    
    if([phoneType  isEqualToString:@"iPhone6,1"])  return @"iPhone 5s";
    
    if([phoneType  isEqualToString:@"iPhone6,2"])  return @"iPhone 5s";
    
    if([phoneType  isEqualToString:@"iPhone7,1"])  return @"iPhone 6 Plus";
    
    if([phoneType  isEqualToString:@"iPhone7,2"])  return @"iPhone 6";
    
    if([phoneType  isEqualToString:@"iPhone8,1"])  return @"iPhone 6s";
    
    if([phoneType  isEqualToString:@"iPhone8,2"])  return @"iPhone 6s Plus";
    
    if([phoneType  isEqualToString:@"iPhone8,4"])  return @"iPhone SE";
    
    if([phoneType  isEqualToString:@"iPhone9,1"])  return @"iPhone 7";
    
    if([phoneType  isEqualToString:@"iPhone9,2"])  return @"iPhone 7 Plus";
    
    if([phoneType  isEqualToString:@"iPhone10,1"]) return @"iPhone 8";
    
    if([phoneType  isEqualToString:@"iPhone10,4"]) return @"iPhone 8";
    
    if([phoneType  isEqualToString:@"iPhone10,2"]) return @"iPhone 8 Plus";
    
    if([phoneType  isEqualToString:@"iPhone10,5"]) return @"iPhone 8 Plus";
    
    if([phoneType  isEqualToString:@"iPhone10,3"]) return @"iPhone X";
    
    if([phoneType  isEqualToString:@"iPhone10,6"]) return @"iPhone X";
    
    if([phoneType  isEqualToString:@"iPhone11,8"]) return @"iPhone XR";
    
    if([phoneType  isEqualToString:@"iPhone11,2"]) return @"iPhone XS";
    
    if([phoneType  isEqualToString:@"iPhone11,4"]) return @"iPhone XS Max";
    
    if([phoneType  isEqualToString:@"iPhone11,6"]) return @"iPhone XS Max";
    
    return @"Unknown Device";
}

最后修改得到的代码如下 以SVP为例：

if (AmIBeingDebugged()){
        if ([[self getPhoneType] isEqualToString:@"iPhone XS Max"]){

        }else{
            [self.hudView addMotionEffect:effectGroup];
        }
    }else{
        [self.hudView addMotionEffect:effectGroup];
    }