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[GUIDE] Enable Multi-Window Mode on Android 6.0 Marshmallow

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There's a hidden feature in Android 6.0, multi window. It has its warnings:

So decide if this is actually for you before following these steps

It's not shown in user builds, so we have to do some messing. You'll either need root or a custom recovery to do this, but as not everyone wants root, here's how you do it with TWRP, a USB cable, and a PC with ADB:

1. Boot your device into recovery
2. Mount your system by going to Mounts > Tick System
3. On your PC open a command line, somewhere like your desktop is useful
4. Type the following command:
HTML Code:
adb pull /system/build.prop
5. Open the build.prop file with your favourite (decent) editor, I recommend using Notepad++ on Windows
6. Find the "ro.build.type" line
7. Change the text after = to "userdebug" from "user"
BONUS: If you want a nicer DPI here, change the line "ro.sf.lcd_density" to your preferred DPI
8. Save the file
9. Go back to the command line and enter the following command:
HTML Code:
adb push build.prop /system/
10. Now open a shell doing:
HTML Code:
adb shell
11. Now a adb shell will open, enter these commands:
HTML Code:
cd system
chmod 644 build.prop
12. Reboot the device as normal
13. When the device has booted, go to the developer options
14. Scroll down to the bottom of the "Drawing" category
15. Enable multi-window and have some fun!

If you're rooted...
1. Download "Build.prop editor"

2. Find "ro.build.type"

3. Edit it to have the value "userdebug" from "user"

4. Reboot when prompted
5. When the device has booted, go to the developer options
6. Scroll down to the bottom of the "Drawing" category
7. Enable multi-window and have some fun!

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29th May 2015, 12:05 PM |#2  
F4uzan's Avatar
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Worked ! Thanks

Such a shame the Keynote didn't introduce such feature, it's stable enough. Just think of the use of the feature on a 10" tablet.
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29th May 2015, 01:35 PM |#3  
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works perfect thank you !
29th May 2015, 03:06 PM |#4  
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How do you use it after enabling?
29th May 2015, 03:11 PM |#5  
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Quote:
Originally Posted by Chahk

How do you use it after enabling?

Go recent menu, on the apps beside the x there's a button to choose the top half or second half.

Multirom users can go /data/media/multirom/roms/ and edit the build prop directly there, no need to use adb. I did it without using a PC
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29th May 2015, 03:17 PM |#6  
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Question
I flashed the latest hammerhead twrp with fastboot command, it was successful, but when I reboot bootloader and choose recovery, it keeps loads forever and sometimes the screen flashes black. I tried CWM after that, it said root needed. How do you guys got recovery on M?
29th May 2015, 04:28 PM |#7  
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Quote:
Originally Posted by Chahk

How do you use it after enabling?

I get how to use it, but how do you consistently pick the two apps that you want to appear?

---------- Post added at 11:28 AM ---------- Previous post was at 11:26 AM ----------

Quote:
Originally Posted by elreydenj

I get how to use it, but how do you consistently pick the two apps that you want to appear?


It seems to be all over the place. I cant figure out how to always get the two apps that i want in multiwindow to show....
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29th May 2015, 05:55 PM |#8  
hsay's Avatar
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Quote:
Originally Posted by prwnd

I flashed the latest hammerhead twrp with fastboot command, it was successful, but when I reboot bootloader and choose recovery, it keeps loads forever and sometimes the screen flashes black. I tried CWM after that, it said root needed. How do you guys got recovery on M?

This is the wrong place to ask this question . Check your pm i have given you the solution and please ask your questions in the right thread next time onwards
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29th May 2015, 06:23 PM |#9  
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is it possible to do that with Wugfresh Nexus Root Toolkit?
29th May 2015, 08:15 PM |#10  
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Quote:
Originally Posted by jonathanxx1

is it possible to do that with Wugfresh Nexus Root Toolkit?

Nope. I tried doing the "push/pull files" and it didn't work. You can install custom Recovery with WugFresh then follow these instructions.
29th May 2015, 08:22 PM |#11  
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Quote:
Originally Posted by drgonzo712

Nope. I tried doing the "push/pull files" and it didn't work. You can install custom Recovery with WugFresh then follow these instructions.

I tried also ,,and it doesn't work.
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