React-native，iOS 模拟器停止响应 CMD + D

Question

since a couple of months I'm facing a very strange situation, when developing on the latest versions of react native (0.50+ to 0.60+) the iOS simulator stops responding to keyboard commands, that is:

• Simulator starts, I can hit Cmd+R or Cmd+D just fine for a few cycles
• After some hot reload cycles, the commands completely stop working
• If go to Hardware->Keyboard->Send Keyboard Shortcuts and enabled it, the commands start working again
• However then the Cmd+Shift+H doesn't work anymore so I cannot easily close the app if I have to

This is really driving me crazy, has anybody faced the same situation or knows any workaround? Many thanks!

PS I already tried a few months ago to reset everything (including simulator settings and xcode installation)

Answer 1

I'm having the same issue. Seems to be an iOS 13.3+ simulator issue as you can see in this thread:

iOS Simulator CMD+R CMD+D Shake doesn't work at all after some time

As an alternative, command + ctrl + z still works to access the development menu.

Answer 2

For me pressing "D" then "⌘+D" solves the issue.

The same goes for "R" then "⌘+R".

Not sure if you could actually just press any single key before pressing your desired shortcut.

Kudos to this GitHub answer for helping me out as this was an extremely frustrating issue.

Answer 3

I have noticed that pressing R R reloads the app on the latest react-native versions, same as on the android emulator, so maybe this is an intentional change.

For those coming in nowadays In any case, so far the workarounds seem to be:

• cmd + shift + z to trigger the dev menu and then click on reload
• r r sometimes also does the trick
• d if the simulator is focused

Answer 4

Did you check that you are in Debug Mode and not in Release?

Product > Scheme > Edit Scheme... >

Build Configuration: Debug + check the box Debug executable.

After changing Scheme, better to deinstall your app.

Also I noticed the Cmd D doesn't work during Splashscreen.