Some people don't know about an Odex or a Deodex Files. I'm gonna explain it to you in the most understandable way :highfive:
Almost all of the Rom here are deodex because it is easier to theme or modify the .apk file because odex files are hard to modify.
These .odex files are also in the same directory as the .jar or .apk file which is located at /system
In system applications come in packages with the extension .apk. These application packages, or APKs contain certain .odex files whose supposed function is to save space. The odexed file structure works well as an optimization tool. Since these .odex files contain preliminary load information about each system app, the OS knows what to expect when it’s booting up, and consequently, it loads apps faster.
On the other hand, it makes the applications difficult to modify/theme 'coz a part of the coding has already been extracted to another location before execution.
For example, in a system app there is:
Phone.apk ===> next to it will be ===> Phone.odex
the Phone.odex has some part of the codes.
It’s the process to take all the packages out from .odex file and reassemble them all together in classes.dex file which is kept inside the APK file in other word it will combine the .odex file to the .apk file and will become a classes.dex. By doing this, it can eliminate/remove the worry to modify the APK conflicting with some separate odexed parts.
In summary, Deodexed ROMs (or APKs) have all their application packages put back together in one place, allowing for easy modification such as theming. Since no pieces of code are coming from any external location, custom ROMs or APKs are always deodexed to ensure integrity.
Example on the same system app:
Phone.apk ===> will no longer have a Phone.odex instead it will be bought inside the Phone.apk as ===> classes.dex
Odex files can build Dalvik Caches faster on the first boot and execution of an app will be faster..
but harder to theme unlike
Deodex files can be modified easier than odex files but building Dalviks and executions will have a slight difference in .odex
Credits
to this Thread
and Google Images :laugh:
Almost all of the Rom here are deodex because it is easier to theme or modify the .apk file because odex files are hard to modify.
These .odex files are also in the same directory as the .jar or .apk file which is located at /system
What is an Odex File?
In system applications come in packages with the extension .apk. These application packages, or APKs contain certain .odex files whose supposed function is to save space. The odexed file structure works well as an optimization tool. Since these .odex files contain preliminary load information about each system app, the OS knows what to expect when it’s booting up, and consequently, it loads apps faster.
On the other hand, it makes the applications difficult to modify/theme 'coz a part of the coding has already been extracted to another location before execution.
For example, in a system app there is:
Phone.apk ===> next to it will be ===> Phone.odex
the Phone.odex has some part of the codes.
What is a Deodex File?
It’s the process to take all the packages out from .odex file and reassemble them all together in classes.dex file which is kept inside the APK file in other word it will combine the .odex file to the .apk file and will become a classes.dex. By doing this, it can eliminate/remove the worry to modify the APK conflicting with some separate odexed parts.
In summary, Deodexed ROMs (or APKs) have all their application packages put back together in one place, allowing for easy modification such as theming. Since no pieces of code are coming from any external location, custom ROMs or APKs are always deodexed to ensure integrity.
Example on the same system app:
Phone.apk ===> will no longer have a Phone.odex instead it will be bought inside the Phone.apk as ===> classes.dex
Advantages and Disadvantages
Odex files can build Dalvik Caches faster on the first boot and execution of an app will be faster..
but harder to theme unlike
Deodex files can be modified easier than odex files but building Dalviks and executions will have a slight difference in .odex
Credits
to this Thread
and Google Images :laugh:
