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[HOW-TO] Enable MultiWindow on EMUI 4.1 / Android 6 (like EMUI 5)

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By #Henkate, Senior Member on 23rd April 2017, 03:35 PM
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Hello!

This morning i was just looking in build.prop when ive seen a line regarding multi-window.
On EMUI 5 / Android 7, we can enable MultiWindow by pressing for few seconds the multitasking/recents icon in the navigation bar.

This feature is available on EMUI 4.1 as well.


REQUIREMENTS:

Quote:

- EMUI 4.1
- Unlocked bootloader
- Rooted phone
- a file manager with root support ( im using the good old version of ES File Explorer)


[HOW-TO] Huawei Nova:


Quote:

1) Grant root access to the file manager.
2) Go to /system and open build.prop.
3) Search for ro.huawei.multiwindow and change it from false to true.

ro.huawei.multiwindow=false becomes ro.huawei.multiwindow=true.

4) Save and reboot. After reboot, you can use MultiWindow by pressing for few seconds the multitasking / recents icon from navigation bar.




[HOW-TO] Other Huawei phones:


Quote:

If you have followed the instructions for Huawei Nova and it didnt work, then check if you have HwMwLauncher folder in /system/app or /system/priv-app.

If it is missing, then check this post. People reported that MultiWindow is working after they got HwMwLauncher.



CONFIRMED DEVICES:

- Huawei Honor 8

If your phone isnt on this list, then it doesnt mean that it doesnt work. Just try and report back. I think it should work on all Huawei phones which are running EMUI 4.1.



EDIT: I just seen that you can use MultiWindow by swiping up two fingers on navigation bar too.
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25th April 2017, 06:12 PM |#2  
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When you are in Multiwindow with 2 apps open, press HOME button.

I have a big bug!
The Home is in half screen.

VNS-L21C432B170
Emui 4.1.2

Inviato dal mio HUAWEI VNS-L21 utilizzando Tapatalk
25th April 2017, 06:34 PM |#3  
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Quote:
Originally Posted by millo1978

When you are in Multiwindow with 2 apps open, press HOME button.

I have a big bug!
The Home is in half screen.

VNS-L21C432B170
Emui 4.1.2

Inviato dal mio HUAWEI VNS-L21 utilizzando Tapatalk

I have no issues. When I press home button it just disable MultiWindow.

Nova CAN-L11 running EMUI 4.1 CANC432B100.
25th April 2017, 07:07 PM |#4  
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Maybe this is my firmware problem... I don't know.

But only with home button.
With back button all is ok.

Screenshot:
https://cloud.tapatalk.com/s/58ff9023...-20-02-43.png?


Inviato dal mio HUAWEI VNS-L21 utilizzando Tapatalk
25th April 2017, 10:38 PM |#5  
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I enabled this on my mate 7 with emui 4 marshmallow quite a while ago. If I try to use it I just get a pop up message saying this application does not support dual windows. Haven't found a practical use for it yet.
26th April 2017, 07:17 AM |#6  
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Quote:
Originally Posted by RobboW

I enabled this on my mate 7 with emui 4 marshmallow quite a while ago. If I try to use it I just get a pop up message saying this application does not support dual windows. Haven't found a practical use for it yet.

It's same for me.
When you press the "+" on homescreen after you enable MultiWindow I think it shows only the apps which support it.

Personally, I'm not using MultiWindow. I just wanted to share the small trick I've found.
26th April 2017, 04:45 PM |#7  
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Strange - it doesn't seem to have any effect on my rooted Honor 8 (still on MM with EMUI 4.1).

I used BuildProp Editor to set ro.huawei.multiwindow=true and rebooted. Holding the "recents" button does nothing apart from a quick burst of haptic feedback after about half a second or so.

Any ideas?

Thanks.
26th April 2017, 11:27 PM |#8  
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Quote:
Originally Posted by stooby

Strange - it doesn't seem to have any effect on my rooted Honor 8 (still on MM with EMUI 4.1).

I used BuildProp Editor to set ro.huawei.multiwindow=true and rebooted. Holding the "recents" button does nothing apart from a quick burst of haptic feedback after about half a second or so.

Any ideas?

Thanks.

Exactly the same phone and software here but it shows the toasts messages and the MultiWindow interface but doesn't work. I think EMUI 4.1 is simply Nougat ready and that is the reason why it has the option to enable or disable MultiWindow but the system (MM) has not this function and that is why it doesn't work. So the result is only the GUI of MultiWindow being shown but is only EMUI trying to do something as layer that system in fact isn't capable.

I was wrong follow @#Henkate instructions here here
27th April 2017, 07:31 AM |#9  
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Quote:
Originally Posted by stooby

Strange - it doesn't seem to have any effect on my rooted Honor 8 (still on MM with EMUI 4.1).

I used BuildProp Editor to set ro.huawei.multiwindow=true and rebooted. Holding the "recents" button does nothing apart from a quick burst of haptic feedback after about half a second or so.

Any ideas?

Thanks.

Quote:
Originally Posted by carmeloamg

Exactly the same phone and software here but it shows the toasts messages and the MultiWindow interface but doesn't work.

1) Do you have HwMwLauncher.apk in /system/app/HwMwLauncher or /system/priv-app/HwMwLauncher ? I don't think it matter if it is in app or priv-app, but it must exist. I have it in /system/app.

2) After you enable MultiWindow, do you see the process named HwDualWindowLauncher at Settings > Developer Options > Running services (check also cached processes there)?

3) In build.prop I have the following line: ro.config.hw_multiscreen=true. I think it might be related to MultiWindow as well, but I'm not sure. I didn't try yet to set it to false and see what happens.


Quote:
Originally Posted by carmeloamg

I think EMUI 4.1 is simply Nougat ready and that is the reason why it has the option to enable or disable MultiWindow but the system (MM) has not this function and that is why it doesn't work. So the result is only the GUI of MultiWindow being shown but is only EMUI trying to do something as layer that system in fact isn't capable.

Well, it works for me on Nova CAN-L11 running EMUI 4.1

MultiWindow has been introduced in Android 6. Why Huawei hid this option in EMUI 4.1 (Android 6) and introduced it as a new feature in EMUI 5 (Android 7)? That's what I'm asking too.
27th April 2017, 01:43 PM |#10  
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Quote:
Originally Posted by #Henkate

1) Do you have HwMwLauncher.apk in /system/app/HwMwLauncher or /system/priv-app/HwMwLauncher ? I don't think it matter if it is in app or priv-app, but it must exist. I have it in /system/app.

2) After you enable MultiWindow, do you see the process named HwDualWindowLauncher at Settings > Developer Options > Running services (check also cached processes there)?

3) In build.prop I have the following line: ro.config.hw_multiscreen=true. I think it might be related to MultiWindow as well, but I'm not sure. I didn't try yet to set it to false and see what happens.

1). I don't have HwMwLauncher.apk in either location (or anywhere, in fact).

2). No, I don't see the HwDualWindowLauncher process running.

3). I tried that, but it doesn't appear to have any affect.

Thanks anyway.
I'm not too bothered whether this works or not, but if it can be enabled, I will just for the fun of it!
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27th April 2017, 02:06 PM |#11  
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Quote:
Originally Posted by stooby

1). I don't have HwMwLauncher.apk in either location (or anywhere, in fact).

2). No, I don't see the HwDualWindowLauncher process running.

3). I tried that, but it doesn't appear to have any affect.

Thanks anyway.
I'm not too bothered whether this works or not, but if it can be enabled, I will just for the fun of it!

The missing HwMwLauncher could be the problem since it is related to MultiWindow.

I've uploaded HwMwLauncher folder from my Huawei Nova.

1) Download HwMwLauncher.zip from HERE and extract it.

2) Copy HwMwLauncher folder to system/app.

3) Set the correct permissions for folders and files (.apk and .odex). I've attached screenshots with the permissions as well. The permissions of oat and arm64 folders must be same as the one for HwMwLauncher folder. And the permission of .odex file must be same as .apk one.

4) Reboot. Now I'd say that it should work. Make sure that ro.huawei.multiwindow=true in build.prop, but also ro.config.hw_multiscreen=true (just in case, I still don't know the purpose of this line as I didn't try to set it to false yet).


@carmeloamg :

If you don't have HwMwLauncher neither, then follow the same steps I've wrote in this post and report if it works.
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