一 利用cocopods 安装CocoaLumberjack（2.2.0）

1.必须要定义 打印级别 DDLog 才能编译通过
#ifdef DEBUG
static const int ddLogLevel = DDLogLevelVerbose;
#else
static const int ddLogLevel = DDLogLevelWarning;
#endif

2.开启颜色 需要装XcodeColors 插件并

//1> 开启使用 XcodeColors
setenv("XcodeColors", "YES", 0);
//2 >检测是否开启 XcodeColors
char *xcode_colors = getenv("XcodeColors");
if (xcode_colors && (strcmp(xcode_colors, "YES") == 0) {
    // XcodeColors is installed and enabled!
    NSLog(@"XcodeColors is installed and enabled");
}
//3 >开启DDLog 颜色
[[DDTTYLogger sharedInstance] setColorsEnabled:YES];
[[DDTTYLogger sharedInstance] setForegroundColor:[UIColor blueColor] backgroundColor:nil forFlag:DDLogFlagVerbose];

3.DDLogError 和 NSLog 一样 都是同步打印，其他的。。。。没理解还

NSLog(@"NSLog");
DDLogVerbose(@"Verbose");
DDLogDebug(@"Debug");
DDLogInfo(@"Info");
DDLogWarn(@"Warn");
DDLogError(@"Error");

4.DDFileLogger 打印的文件路径

NSHomeDirectory()/Library/Caches/Logs/com.jaga.test 2016-01-22        03-35.log

5.上代码

//!!DDLog 必须配置打印级别
  #ifdef DEBUG
  static const int ddLogLevel = DDLogLevelVerbose;
  #else
  static const int ddLogLevel = DDLogLevelWarning;
  #endif


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.

//开启使用 XcodeColors
setenv("XcodeColors", "YES", 0);
//检测
char *xcode_colors = getenv("XcodeColors");
if (xcode_colors && (strcmp(xcode_colors, "YES") == 0))
{
    // XcodeColors is installed and enabled!
    NSLog(@"XcodeColors is installed and enabled");
}
//开启DDLog 颜色
[[DDTTYLogger sharedInstance] setColorsEnabled:YES];
[[DDTTYLogger sharedInstance] setForegroundColor:[UIColor blueColor] backgroundColor:nil forFlag:DDLogFlagVerbose];

//配置DDLog
[DDLog addLogger:[DDTTYLogger sharedInstance]]; // TTY = Xcode console
[DDLog addLogger:[DDASLLogger sharedInstance]]; // ASL = Apple System Logs

DDFileLogger *fileLogger = [[DDFileLogger alloc] init]; // File Logger
fileLogger.rollingFrequency = 60 * 60 * 24; // 24 hour rolling
fileLogger.logFileManager.maximumNumberOfLogFiles = 7;
[DDLog addLogger:fileLogger];

//针对单个文件配置DDLog打印级别，尚未测试
//    [DDLog setLevel:DDLogLevelAll forClass:nil];

NSLog(@"NSLog");
DDLogVerbose(@"Verbose");
DDLogDebug(@"Debug");
DDLogInfo(@"Info");
DDLogWarn(@"Warn");
DDLogError(@"Error");

DDLogError(NSHomeDirectory());
return YES;

}