how to connect device in xcode without cable. it is tedious to connect the cable and my USB is lil bit loose, so it disconnects from PC.
Over wifi installing and debugging of applications is not possible in ios.
But there are some websites where you can upload your builds and then download on device and test it.
WiFi debugging has never been supported in any public releases of Xcode yet.
There are third party hacks that may or may not work: https://github.com/Shopify/superdb
There also reports that this works with some workarounds: http://stackoverflow.com/a/7857052/361247
But officially, this isn't supported.