【iapp】判断悬浮窗权限

//判断悬浮窗权限

判断:
mian.iyu
call(a, "mlua", "lua.get")
tw(a)
//a为flase则无权限

lua.mlua
function get()
import "android.provider.Settings"
return Settings:canDrawOverlays(activity)
end

打开设置(与上面用sit效果一样):
mian.iyu
call(null, "mlua", "lua.get")

lua.mlua
function get()

import "android.provider.Settings"
import "android.content.Intent"
import "android.net.Uri"

intent=Intent("android.settings.action.MANAGE_OVERLAY_PERMISSION")
intent:setData(Uri:parse("package:" .. activity:getPackageName()))
activity:startActivity(intent)
end