方法一 （启动直接显示）
需要写在- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions里
ifdef DEBUG
pragma clang diagnostic push
pragma clang diagnostic ignored "-Warc-performSelector-leaks"
id debugClass = NSClassFromString(@"UIDebuggingInformationOverlay");
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
[debugClass performSelector:NSSelectorFromString(@"prepareDebuggingOverlay")];
});
id debugOverlayInstance = [debugClass performSelector:NSSelectorFromString(@"overlay")];
[debugOverlayInstance performSelector:NSSelectorFromString(@"toggleVisibility")];
pragma clang diagnostic pop
endif
方法二 （双指同时点击状态栏显示）#推荐#
需要写在- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions里
ifdef DEBUG
pragma clang diagnostic push
pragma clang diagnostic ignored "-Warc-performSelector-leaks"
//可视化调试
Class overlay = NSClassFromString(@"UIDebuggingInformationOverlay");
[[overlay class] performSelector:NSSelectorFromString(@"prepareDebuggingOverlay")];
pragma clang diagnostic pop
endif
效果
