Run/install/debug Android applications over Wi-Fi?

Turn on the terminal,then:
 

1. 1st-Connect the device via USB and make sure debugging is working.   
2. 
   
3. 2nd-adb tcpip 5555
4. 

5. 3rd-find the IP address with adb shell netcfg or adb shell ifconfig with 6.0 and higher
6. 
   
7. 4th-adb connect <DEVICE_IP_ADDRESS>:5555
8. 

9. 5th-Disconnect USB and proceed with wireless debugging.
10. 
    
11. 6th-adb -s <DEVICE_IP_ADDRESS>:5555 usb to switch back when done.
12.