关于输入法振动问题（算问题吗） #621

Entaliga · 2024-11-21T08:02:57Z

Entaliga
Nov 21, 2024

个人比较喜欢的振动是那种哒哒哒的振动。

但是有一个问题，使用系统默认振动之后，震感是特别大的，而调整的振动（比如3ms）都是嗡嗡嗡。

作为一个小白，想提问，能否将系统默认振动的档位调小，或者说怎么通过修改安装包的形式满足我的需求

rocka · 2024-11-21T14:20:45Z

rocka
Nov 21, 2024
Maintainer

“系统默认”之所以是默认就是因为它是不能改的。控制振动反馈的代码在这里

fcitx5-android/app/src/main/java/org/fcitx/fcitx5/android/data/InputFeedbacks.kt

Lines 56 to 94 in 2c0c4c9

    
           fun hapticFeedback(view: View, longPress: Boolean = false, keyUp: Boolean = false) { 
        
               when (hapticOnKeyPress) { 
        
                   InputFeedbackMode.Enabled -> {} 
        
                   InputFeedbackMode.Disabled -> return 
        
                   InputFeedbackMode.FollowingSystem -> if (!systemHapticFeedback) return 
        
               } 
        
               if (keyUp && !hapticOnKeyUp) return 
        
               val duration: Long 
        
               val amplitude: Int 
        
               val hfc: Int 
        
               if (longPress) { 
        
                   duration = buttonLongPressVibrationMilliseconds.toLong() 
        
                   amplitude = buttonLongPressVibrationAmplitude 
        
                   hfc = HapticFeedbackConstants.LONG_PRESS 
        
               } else { 
        
                   duration = buttonPressVibrationMilliseconds.toLong() 
        
                   amplitude = buttonPressVibrationAmplitude 
        
                   hfc = HapticFeedbackConstants.KEYBOARD_TAP 
        
               } 
        
               val useVibrator = duration != 0L 
        
               if (useVibrator) { 
        
                   // on Android 13, if system haptic feedback was disabled, `vibrator.vibrate()` won't work 
        
                   // but `view.performHapticFeedback()` with `FLAG_IGNORE_GLOBAL_SETTING` still works 
        
                   if (hasAmplitudeControl && amplitude != 0) { 
        
                       vibrator.vibrate(VibrationEffect.createOneShot(duration, amplitude)) 
        
                   } else { 
        
                       @Suppress("DEPRECATION") 
        
                       vibrator.vibrate(duration) 
        
                   } 
        
               } else { 
        
                   // it says "Starting TIRAMISU only privileged apps can ignore user settings for touch feedback" 
        
                   // but we still seem to be able to use `FLAG_IGNORE_GLOBAL_SETTING` 
        
                   @Suppress("DEPRECATION") 
        
                   val flags = 
        
                       HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING or HapticFeedbackConstants.FLAG_IGNORE_GLOBAL_SETTING 
        
                   view.performHapticFeedback(hfc, flags) 
        
               } 
        
           }

“系统默认”就是调用 View#performHapticFeedback ，而如果修改了振动时间就改为调用 Vibrator#vibrate 。如果你想自己控制振动反馈的波形，可以研究一下这个文档： https://developer.android.com/develop/ui/views/haptics/custom-haptic-effects

1 reply

Entaliga Nov 21, 2024
Author

ok，非常感谢了

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rocka Nov 21, 2024 Maintainer

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