I have a chinese tablet with very specific Android 4.4.2 ROM - it's Developer options menu has only USB debugging available, and all other settings are hidden.
The problem is that i switched off the Developer options toggle by mistake, so now all settings are back to their defaults, including the transitional animations (when changing tabs) period.
They was not active before, so it was the default behavior of the ROM.
The device is not rooted.
Is there any way to edit the hidden settings?
I'm uncertain on bringing those lost options in GUI back other than to recommend clearing data of Settings app from Settings → Apps → All apps → Settings → Clear data. Reboot and see what happens. In the event of failure, you can consider factory-reset.
That said, if you're simply concerned with changing Window/Transition animation scale and/or Animator duration scale, then you can use settings or content tool which do not require root access. You can refer to Christopher Galpin's method for an approach requiring root access.
(Solution tested on Android 4.2.1, 4.4.2, 5.0.2 and 5.1.1.)
Setup adb in PC and execute
adb shell settings get system window_animation_scale # for Window animation scale. Some ROMs have this key under global table instead of system. So replace system if command gives null
adb shell content query --uri content://settings/system --where 'name="window_animation_scale"' # an alternative to above command. Make replacements as appropriate
If the first and the second command returns you a decimal and a string beginning with Row:, then you're on the right track. Now do
adb shell settings put system window_animation_scale VALUE # Replace VALUE with a decimal, such as 0.75 or 2.0. The minimum and maximum I've seen are 0.0 and 10.0
adb shell content update --uri content://settings/system --bind value:s:VALUE --where 'name="window_animation_scale"' # an alternative to above command. Make replacements as appropriate
In order to change Transition animation scale, replace window_animation_scale with transition_animation_scale. For Animator duration scale, replace with animator_duration_scale.
