.. _3 Manual Modification Scheme:


3 Manual Modification Scheme
=================================================

- Step1:get the configuration file “SystemKeyConfig.prop”; (available on: https://github.com/picoxr/system-key-config-runtime/blob/master/resource/SystemKeyConfig.prop)

- Step2:Open the configuration file "SystemKeyConfig.prop" with Notepad

- Step3:Modify the definitions of keys

Modify Home key
^^^^^^^^^^^^^^^^^^^^^^^

- G2 4K series/ Neo2 series

  The key values of the home keys include **tap**, **double-tap**, **long press** as follows:

  =========================     =====================
  action_home_single_tap        Tap
  action_home_double_tap 	  	 Double-tap
  action_home_long_press        Long press
  =========================     =====================

  The above key values can be set at 0/1/2/3/4/5/6/7. The response corresponding to each value is as below: 
      
      0: Invalid;
      
      1: Boot the applications in the specified package names or class names; 
      
      2: Back to Launcher; 
      
      3: Launch Settings; 
      
      4: Back;
      
      5: No function, but send the key notice;
      
      6: Reset the front direction;
      
      7: Clean up background Apps;

- Neo 3 series

  The key values of the home keys include **tap**, **double-tap** as follows:

  =========================     =====================
  action_home_single_tap        Tap
  action_home_double_tap 	  	 Double-tap
  =========================     =====================

  The above key values can be set at 0/2/3/6. The response corresponding to each value is as below: 

      0: Invalid;
     
      2: Back to Launcher; 
      
      3: Launch Settings; 
      
      6: Reset the front direction;
      
  
  Set the values to the keys according to the needs. For example, to change the **Home** key to **Back** functionality please modify the key as below, 

  .. code-block:: xml  
  
    action_home_single_tap=4

  The following keys are used to set the **double-tap** interval and **long press** duration (in milliseconds): 

  ======================     ====================================================
  time_home_double_tap 	     time gap between the two Home button click (ms)
  time_home_long_press 	     duration of Home button long press function (ms)
  ======================     ====================================================
    
  When setting Home button functionality to 1, it is required to set the to-be-booted application package name and class name with the following keys,

  ========================     ====================================================    
  action_home_XXX_package      package name of the to-be-booted application
  action_home_XXX_class        class name of the to-be-booted application
  ========================     ====================================================

  Here **XXX** refers to **single_tap**, **double_tap** and **long_press**
  For example, to launch the application with package name "com.picovr.settings" and class name "com.picovr.vrsettingslib.UnityActivity" by single tapping on Home button, please set the keys as below,
    
    
  .. code-block:: xml

    action_home_single_tap=1

    action_home_single_tap_package=com.picovr.settings
    action_home_single_tap_class=com.picovr.vrsettingslib.UnityActivity

Disable other keys on the headset
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  The parameters are defined as below,

  =======================     ====================================================
  action_key_enter 	          Confirm button, on the side of the headset
  action_key_volumeup 	      Volum Up button
  action_key_volumedown 	    Volum Down button
  action_key_back 	          Back button, on top of the confirm button
  action_power_long_press     Power button long press function
  action_power_single_tap     Power button single tap function
  =======================     ====================================================

  Set the key value to 0 to disable the button default functionality. For example, to disable the **Confirm** button, change the codes as below,

  .. code-block:: xml
    
    action_key_enter=0
  
  To reserve the key, please comment the related parameter in configuration file. For example,

  .. code-block:: xml

    #action_key_enter=0

- Step4:Open adb, and copy files to the data/local/tmp directory. Instructions are as follows: 
  adb push SystemKeyConfig.prop /data/local/tmp/

- Step5: Reboot the device.