Android9.0 power键提供了方便的功能配置修改方法，具体如下：

短按：

  <!-- Control the behavior when the user short presses the power button.
            0 - Nothing
            1 - Go to sleep (doze)
            2 - Really go to sleep (don't doze)
            3 - Really go to sleep and go home (don't doze)
            4 - Go to home
            5 - Dismiss IME if shown. Otherwise go to home
            change from 1 to 0 for no panel project@CHENHUO20210909
    -->
    <integer name="config_shortPressOnPowerBehavior">0</integer>

   

连续短按两次：

<!-- Control the behavior when the user double presses the power button.
            0 - Nothing
            1 - Toggle theater mode setting
            2 - Brightness boost
    -->

<integer name="config_doublePressOnPowerBehavior">0</integer>
 

长按：

  <!-- Control the behavior when the user long presses the power button.
            0 - Nothing
            1 - Global actions menu
            2 - Power off (with confirmation)
            3 - Power off (without confirmation)
            4 - Go to voice assist
    -->
    <integer name="config_longPressOnPowerBehavior">1</integer>   

超长按：

<!-- Control the behavior when the user long presses the power button for a long time.
            0 - Nothing
            1 - Global actions menu
    -->
    <integer name="config_veryLongPressOnPowerBehavior">1</integer>

    <!-- Control the behavior when the user long presses the back button.  Non-zero values are only
         valid for watches as part of CDD/CTS.
            0 - Nothing
            1 - Go to voice assist
    -->