Googling gave me this:

Emulate touchscreen on a non touchscreeen android device?

Reading that link, and it sounds like the answer is probably going to be "No" as there is no appropriate API support.  However, other posts suggest that maybe you could inject events into the OS if it was "rooted" and the hypothetical app was running with root privs; but that app was still hypothetical.

Depending on the phone, you can usually plug a USB->OTG cable in and then plug a mouse in.  Or a keyboard. Or both, if you also plug a hub in (there has to be driver support for a hub then, I think)

You get a cursor and you can do touchscreen type thing.  But you can't emulate multitouch.

A different solution: You might be better to think about casting your mobile device display to your TV.

Then you can use the local touchscreen to control what you see on the big screen. You want really good connectivity to minimize latency etc.

I use and iPhone and Apple tv for this, but there is probably something similar for Android.

(I know of Chromecast, but i'm not sure if it can mirrror everything or select apps/screens)

I do that but I am looking for something that also works on a device with no touchscreen. I can make quite a few sideloaded phone apps work on my Android box, but I can't scroll down beyond the visible page because that requires touch gestures. If I could fake it with a keyboard or mouse action I could make it work.

jamesrt:

 

Googling gave me this:

 

Emulate touchscreen on a non touchscreeen android device?

 

Reading that link, and it sounds like the answer is probably going to be "No" as there is no appropriate API support.  However, other posts suggest that maybe you could inject events into the OS if it was "rooted" and the hypothetical app was running with root privs; but that app was still hypothetical.

 

 

 

I drilled down on this and eventually came to specialised apps for the physically disabled. After some more searching I discovered two in particular, being Switchboard and Tecla, both in PlayStore. What I specifically need is a way to scroll without touch, since the main problem I run into with phone apps is an inability to see or interact with part of the screen. I can move the cursor with the mouse, but not further than the display area. Some apps do allow the screen to scroll by clicking on the direction arrow, but many do not. Some Android devices may also include something like this in their Accessibility functions, but again, mine do not.

I have not yet had time to try these apps. I will report back here when I do.

It must be possible (because Android touch apps work on a Chromebook without touchscreen), but the results vary wildly.

I can open for example, the Outlook android app on my chromebook with playstore.

Using the touchpad, I can two finger scroll the email list, just as you'd expect. But in the email/preview pane I cant scroll with the touchpad/mouse at all. The only method that works on this device is the arrow keys, and even that is somehow sub par.

This is from a decent developer like Microsoft, once you get to the 3rd tier devs, its going to be very poor experience.

@Rikkitic Not sure this exactly fits your setup, from reading the "Annoyances" thread, but just in case it's useful - have you come across the "Android TV Remote Control" app. I use it with a Xiaomi Mi Box

I will have to look into this later. Thanks for the tip.

Have you tried using the scroll wheel on the mouse to scroll the screen up/down? Or click and drag up/down?

I use a little usb keyboard/air mouse with the Android boxes. No mouse wheel but dragging, pgdn, and down arrow don't make a difference. Only a few of the keys produce any response at all, and that is the same as the device remotes.

I am not sure if it would be any use for what you want, but when my old Android phone wound up in the washing machine, it worked afterwards for a few days, but various bits of it did not function, including the touchscreen.  But I was able to use MonkeyRemote and adb to operate it enough to be able to get it to backup its essential data.  Fortunately, the phone was already enabled for debugging via adb - I would not have been able to use MonkeyRemote otherwise.  MonkeyRemote is a Java program that creates a window on your PC with a copy of the phone's screen, and allows you to use the keyboard and mouse to control it.

https://github.com/ns130291/MonkeyRemote