According to this, it say you can customize which accessibility tool is activated.
"Optional: To change which accessibility service the shortcut controls, tap Shortcut service. "
However, I don't see that option on my phone (But I'm only on Android 7). So it may be for the updated OS. Also, as mentioned before, Samsung may make mods. I didn't see that option for Samsung.
God-Macabre [OP]1 points4y ago
When fiddling around trying to find this "shortcut service", i stumbled upon direct access. This has achieved what I wanted by pressing the power button and volume up key then triple tapping the home button. I enabled negative colours and i can freely enable and disable it just like on iOS. THANK YOU. I now can consider android as an option for my future phones. I'm so stoked!
CaseyBurkhardt1 points4y ago
What *exactly* are you trying to assign to the shortcut?
Recent versions of Android (Oreo and Pie) do support assigning different services and features to the Accessibility Shortcut, but OEMs, like Samsung, often make modifications to Android. I'm not entirely familiar with the Samsung J2, so I'm not sure I can give you precise instructions, but this should generally be configurable from Settings -> Accessibility.
You might try reaching out to Google's disability support team at disability-support-external@google.com
God-Macabre [OP]1 points4y ago
I’m trying to assign the negative colours (inverted colours on iPhone) to the shortcut. It’s in the vision category of accessibility underneath greyscale. And although I can enable accessibility shortcut from this tab of options in vision, the “accessibility” shortcut only enables talkback, which I don’t want or use at all.
Nighthawk3211 points4y ago
So wait, are you using talkback or zoom? If you're using Talkback, just hold down the volume buttons.
God-Macabre [OP]1 points4y ago
Neither, I want to personise it to use and disable the internet negative colours.
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