DDLog-printing information of different colors and ddlog-color printing

DDLog-printing information of different colors and ddlog-color printing

(1) download and install

1. Install the plug-in

XcodeColors

Github link: https://github.com/robbiehanson/XcodeColors

Open the XcodeColors project and compile it. It will install XcodeColors. xcplugin on your computer. The specific path is :~ /Library/Application Support/Developer/Shared/Xcode/Plug-ins/XcodeColors. xcplugin (you can take a look ).

2. Introduce a third-party library

CocoaLumberjack

Github link: https://github.com/CocoaLumberjack/CocoaLumberjack

3. Modify your printing information and replace NSLog with DDLog for printing. It is best to use it for new projects.

 

(2) Introduction to DDLog

DDLog: basic class, which must be introduced.

DDASLLogger: supports writing debugging statements to Apple logs. Generally, it is being developed for Mac. Optional.

DDTTYLogger: supports writing debugging statements to the xCode console. Even if we use it. Optional.

DDFileLogger: supports writing debugging statements to the file system. Optional.

DDLogBy default, the following output levels are available:

DDLogError: Define output error text

DDLogWarn: defines the output warning text

DDLogInfo: defines the output text.

DDLogDebug: Define output debugging text

DDLogVerbose: defines the output detailed text

The log level is:

LOG_LEVEL_ERROR: only error logs are displayed.

LOG_LEVEL_WARN: including: LOG_LEVEL_ERROR

LOG_LEVEL_INFO: including: LOG_LEVEL_WARN

LOG_LEVEL_DEBUG: including: LOG_LEVEL_INFO

LOG_LEVEL_VERBOSE: including: LOG_LEVEL_DEBUG

LOG_LEVEL_OFF: Disable logs.

 

(3) Use the DDLog

# Import "CocoaLumberjack. h"

Static const int ddLogLevel = DDLogLevelVerbose; // defines the log level [DDLog addLogger: [DDTTYLogger sharedInstance]; // initializes the output of DDLog logs. Here, we only want to output [[DDTTYLogger sharedInstance] setColorsEnabled: YES] On the xCode console; // enable color differentiation DDLogError (@ "error message "); // red DDLogWarn (@ "Warning % @", @ "asd"); // orange DDLogInfo (@ "prompt message: % @", @ ""); // The default value is black DDLogVerbose (@ "error: % d", 1016); // The default value is black.

Print effect:

Tips: If the print color does not change

• Open Product-> Edit Scheme
• Choose Run> "Arguments" tab.
• Add a new Environment Variable named "XcodeColors" with the value "YES ".
• OK. Now is the time to witness the miracle. You can see it once you run it.