iOS – How to debug native iOS app (1)?

How to use short keys in Xcode?

How to jump forward/ backward?

Cmd + Ctrl + ←

How to show/ hide project navigator?

Cmd + 0

How to collapse/ expand current code block?

Option + Cmd + Left/ Right Arrow

How to show/ hide debug console?

Cmd + Shift + Y

How to capture API calls?

Use Wormholy

• Add wormholy into Podfile

pod 'Wormholy', :configurations => ['Debug']

• Use hotkey Ctrl + Command + Z to open it

Use Postman Proxy

• Make sure your Mac and your iOS connecting to the same network
• Turn on “Capture Request”

• Configure HTTP Proxy on your mobile device
  • Server: is LAN IP of your Mac
  • Port: is number set in Postman

• You can see API requested from Postman history from now on

Use mitmproxy

• Install
  brew install mitmproxy
• Run this from CLI
  mitmproxy or mitmdump or mitmweb
• Configure HTTP Proxy on your mobile device as Postman except the port number used here is 8080
  • Change port number
    mitmproxy --listen-port #PORTNO
mitmweb --listen-port #PORTNO
• Reference
  • debugging ios simulator
  • Official site

How to debug iOS device over Wifi?

• Open your project on Xcode
• Plugged in your iPhone with USB cable
• Open Window > Devices and Simulators
• Select Devices from the top, Select your device from left and Check the “Connect via network” box
• Unplug your USB cord

Breakpoint tips

Breakpoints not hit

Go to Product -> Scheme -> Edit Scheme, under Run – Info. Check “Debug Executable” in that menu

5 Xcode breakpoints tips you might not yet know

How to turn off garbage log?

You may see frequent log messages related to nw_connection_get_connected_socket or finished with error – code : -1001. These are due to attempted connections to the React debugging tools.

Silence these temporarily by going to Product \ Scheme \ Edit Scheme and finding the Arguments tab of the Run config. Add a new environment variable called “OS_ACTIVITY_MODE” with the value “disable”

Errors

Why can’t I use XCode Profiler to see network activities?

It’s because the XCode Profiler is used for real devices only