How to direct users for enabling accessibility service for my app

Question

I know It's impossible to enable the Accessibility service for apps programmatically, so I'd like to direct users to this screen: System settings --> Accessibility --> app name --> enable/disable screen. Is that possible ?

Answer 1

You can get them to the Accessibility screen on most devices using ACTION_ACCESSIBILITY_SETTINGS. However:

• that may not work on all devices, so you will want to just send them to Settings as a fallback, if you get an ActivityNotFoundException

• there is no way to get them straight to any given app, let alone the enable/disable screen

Answer 2

You can at least make it reach the app, making the app item blink. It should work for most devices, or at least those that are like of Pixel devices:

    fun <T : AccessibilityService> getRequestAccessibilityPermissionIntents(context: Context, accessibilityService: Class<T>): Array<Intent> {
        var intent = Intent("com.samsung.accessibility.installed_service")
        if (intent.resolveActivity(context.packageManager) == null) {
            intent = Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS)
        }
        val extraFragmentArgKey = ":settings:fragment_args_key"
        val extraShowFragmentArguments = ":settings:show_fragment_args"
        val bundle = Bundle()
        val showArgs = "${context.packageName}/${accessibilityService.canonicalName!!}"
        bundle.putString(extraFragmentArgKey, showArgs)
        intent.putExtra(extraFragmentArgKey, showArgs)
        intent.putExtra(extraShowFragmentArguments, bundle)
        return arrayOf(intent, Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS)
            .addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY))
    }

Usage:

    private fun requestAccessibilityPermission() {
        getRequestAccessibilityPermissionIntents(this, MyAccessibilityService::class.java).forEach { intent ->
            try {
                startActivity(intent)
                return
            } catch (e: Exception) {
            }
        }
        //TODO do something here in case it failed
    }