最近在模拟器上面测试SDK，想看看模拟器断开xcode调试的日志输出，发现Xcode-Window-Devices里面并不能看到。
把日志重定向输出到log文件，便可以看到实时的log日志。
重定向日志输出代码：
1 2 3 4 5 6 7 8 9 10 | -(void)redirectConsoleLog{ #ifdef DEBUG NSString *documentDir = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0]; NSLog(@"documentPath : %@",documentDir); //重定向NSLog NSString* logPath = [documentDir stringByAppendingPathComponent:@"console.log"]; freopen([logPath fileSystemRepresentation], "a+", stderr); #endif } |
然后在AppDelegate里面添加这个方法。
1 2 3 4 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { [self redirectConsoleLog]; } |
运行Xcode，得到document的目录，然后定位到该目录下面。
1 2 3 | documentPath : /Users/Monkey/Library/Developer/CoreSimulator/Devices/EC652E7F-BEAD-4153-9F56-7DC025D4050C/data/Containers/Data/Application/3741A5B7-DF67-4872-B0F2-4E6125C27E82/Documents cd /Users/Monkey/Library/Developer/CoreSimulator/Devices/EC652E7F-BEAD-4153-9F56-7DC025D4050C/data/Containers/Data/Application/3741A5B7-DF67-4872-B0F2-4E6125C27E82/Documents |
使用tail –f console.log实时查看。也可以使用tail –f console.log | grep “xxx”，进行过滤。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | cd /Users/Monkey/Library/Developer/CoreSimulator/Devices/EC652E7F-BEAD-4153-9F56-7DC025D4050C/data/Containers/Data/Application/3741A5B7-DF67-4872-B0F2-4E6125C27E82/Documents tail -f console.log 2016-03-11 11:20:43.430 BugrptSDKDemo[33376:6921912] <WORKFLOW>: sdk catch a exception 2016-03-11 11:20:43.922 BugrptSDKDemo[33376:6921912] <Info> Bugrpt: catch a fatal signal:6 [6,0,0] 2016-03-11 11:20:43.922 BugrptSDKDemo[33376:6921912] <Debug> Bugrpt: crash count is: 1 2016-03-11 11:20:43.922 BugrptSDKDemo[33376:6921912] <Debug> Bugrpt: CrashData is sessionEvent:( "sdk[1.1.2] handle signal:6 info(6,0,0)" ) crashTime:1457666443431 handler:Signal Handler type:NSRangeException(SIGABRT) error:*** -[__NSArrayI objectAtIndex:]: index 3 beyond bounds [0 .. 2] address:0x108e1a0ae crashThread:1803 lastExceptionInfo: name:(null) arch:(null) uuid:(null) addr:(null) bininfos:(null) crashStackNames:(null) |
Log打印：
NSLog(@”this is my log”);
fprintf(stderr,”%s\n”,”this is my log”);