What is a OAT File Type?
Typically, OAT files are stored in the following directory on the Android device.
Hide / cache / dalvik / Data / dalvik-hide / dalvik.
Android performs these optimizations with the help of a tool called Dex2Oat. When you install an application on a device running Android 5.0 or higher, it converts the Dalvik code from the .ODEX file to native code and stores it in an OAT file. Therefore, each app will have a corresponding OAT file. dex2oat is typically located in the following directory on the Android device:
System / Bin / dex2oat / dex2oat.
The OAT files were introduced with Android 5.0 code name, unk > Lollipop &" or < unk > L. < unk > Previous versions of Android use .ODEX (Optimized DEX) instead of optimized executable OAT files. The new Android 5.0 executing method, called ART (Android Runtime), uses an-compilation method from-time (AOT), which improves the previous method. ART replaces the previous runtime, which calls s' Dalvik.
What is a Default OAT File Name?
This file is created every time a device is upgraded or when the application is rebooted after it has been purchased. The boot.oat file is referenced by an application when the application calls a programming interface framework application.