[Android General] perrsona1234:
Hi all!

I was thinking about some way to reduce list of apps installed on my device. Ergo: to get more /data & /system (and other partitions) free space to my advantage.

Testing platform:

Phone: Samsung Galaxy Trend Plus/GT-S7580/kylepro: http://www.phonearena.com/phones/Samsung-Galaxy-Trend-Plus_id8239

ROM: AOSP 7.1.2 (15.06.2017 build): https://xdaforums.com/s7582/development/rom-aosp-7-0-galaxy-s-duos-2-trend-plus-t3472072 - main thread for this ROM.

AOSP 7.1.2 download link: build.sandpox.org

Launcher: Nova Launcher Prime 5.3 beta 2:

https://play.google.com/store/apps/details?id=com.teslacoilsw.launcher&hl=pl - Nova Launcher

https://play.google.com/store/apps/details?id=com.teslacoilsw.launcher.prime&hl=pl Prime Unlocker

Icon pack: Noctum Iconpack 1.9: https://play.google.com/store/apps/details?id=com.mlv.noctum&hl=pl

I started by deleting unwanted apps, but that wasn't enough. I was thinking about replacing some "core" apps from /system partition (e.g. Dialer, Gallery, etc.).

But there was a problem - how do I replace them ?

So I did some searching & found four solutions (I know there are dozens of this kind of apps. but I focused ONLY on this apps):

FOR REPLACING SYSTEM APPS WITH ONE APP:

1) "fooView":

XDA: https://xdaforums.com/android/apps-games/app-fooview-alpha-im-t3326901

Play Store: https://play.google.com/store/apps/details?id=com.fooview.android.fooview&hl=pl

But that wasn't it. I didn't liked it. Some "unnecessary" features (at least for me, that's why it's in quote) & high (In my opinion!) RAM usage by the app marked this app as unusable for me.

But I need to thank the Dev, for letting me dive into it more & search for more suitable solution.

2) "Multitasking":

XDA: Couldn't find, does not exist on XDA ? If it is on XDA, then PM me, I will update the thread with those links. Thank You!

Play Store: https://play.google.com/store/apps/details?id=com.oryon.multitasking

Idea behind this app is very good, but it was crashing & force-closing often. Don't know why, I had always about 300MB of free RAM & CPU usage also wasn't that high.

Also disability to add my own apps & URL links and convert them into floating apps was a dead end for this app (once again - at least in my opinion!).

3) "Floating Apps":

XDA: Couldn't find, does not exist on XDA ? If it is on XDA, then PM me, I will update the thread with those links. Thank You!

Play Store: https://play.google.com/store/apps/details?id=com.lwi.android.flappsfull

Tried it with some disbelief that it will work, but... IT WORKS! THIS IS IT! All is working fine, many themes to choose from.

Great multitasking app! More than 35+ apps included! Dialer, Image viewer, Calculator & more!

Also it has ablility to convert apps & URL links into floating apps!

Works flawlessly, it will stay with me for sure!

But there are two small negatives (in my opinion!):

a) DON'T USE "Quick Launch Icon" on a devices with small RAM amount (like mine) - it increases RAM usage by 300% of the main process of the app.

With QLI: 68MB of RAM used

Without QLI: 16MB of RAM used

b)DON'T DELETE "Contacts" app (and "Contacts Provider" from obvious reasons) from Your phone before syncing contacts from cloud/importing them from .vcf file. "Contacts" app in "Floatnig Apps" can't sync/import contacts - it can only add new ones.

c)DON'T DELETE "Dialer" app (and other apps related to this app) from Your phone, because after deleting it, if You will try to make a call, the "InCallUI" won't show up. Phone will start ringing, but that UI will not show up, so You won't be able to accept/decline a call.

ONE APP FOR TWEAKING ROM*:

(One app to rule them all! XD)

1) 3C Toolbox Pro:

XDA: https://xdaforums.com/android/apps-games/app-2-3-3c-toolbox-pro-t2942186

Play Store: https://play.google.com/store/apps/details?id=ccc71.at&hl=pl

It's a REALLY GREAT TOOL for tweaking ROMs to Your preferences. It has over 80+ tools in ONE app! (just read Play Store description)

It has CPU, RAM, ROM managers, build.prop editor, terminal, battery calibrator & MANY MORE in ONE app!

It's worth it's price.

#IHighlyRecommendThisGreatApp

SO, IT'S TIME TO COMPARE IT:

Before:

About 60-70 apps installed in the device.

Almost 2GB's of ROM memory used

Above 400 MB of RAM used

After:

ONLY 26 apps installed in the device.

Under 1.9GB's of ROM memory used

Under 320 MB of RAM used

:D :D :D

Press "Thanks" button, if I helped You somehow. Best regards for You!

But overall, I need to thanks all this people for their work, so...

Credits are going to**:

[MENTION=7171610]fvalpha[/MENTION] for his "fooView" app.

OryonCorp for their "Multitasking" app.

LWi s.r.o for their "Floating Apps" app. [MENTION=253258]3c[/MENTION] for his "3C Toolbox Pro" app!

[MENTION=5980306]sandpox[/MENTION] for creating a "starting point" for ROM development onto my device & for developing some first ROMs onto this device.

[MENTION=6034929]no_name[/MENTION] for creating this great ROM.

[MENTION=6429309]DodoGTA[/MENTION] for help with many things related to my device.

[MENTION=6699103]sostk22[/MENTION] for help with many things related to my device. [MENTION=6399444]DNikola[/MENTION] for being a nice person. XD :D

Whole "GT-S758x team" group for so much help & a nice atmosphere in the group. :)

Whole XDA Community - thanks for existing. XD I have learned SOOOO MUCH with You**, here on xda-developers.com . Thanks to all of you!

*If I have forgot about someone, PM me.

**But I have still SOOO MUCH to learn! Will stay on this forum for a LOOONG time, for sure!