Android 7.0 new features and implications for developers

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Jit/aot compiling

In Android N, we added the Just in time (JIT) compiler to code analysis of ART so that it can continue to improve the performance of Android apps while the app is running. The JIT compiler complements the current Ahead of Time (AOT) compiler for Android running components to help improve runtime performance, save storage space, and speed application updates and system updates.

The compilation of profile guidance allows Android to run components to manage the Aot/jit compilation of each application based on the actual use of the app and the situation on the device. For example, the Android runtime component maintains the profile of each application's hot method, and can precompile and cache these methods for optimal performance. For other parts of the app, it will not compile until it is actually used.

In addition to improving the performance of key parts of your application, compiling your profile guidance can also help reduce the overall RAM footprint, including associated binaries. This feature is especially important for low memory devices.

The Android runtime component minimizes the impact on device batteries while managing the compilation of personal data guidance. Compiling only when the device is idle and charging allows you to save time and power by doing the work in advance.

Fast Application Installation Path

One of the most practical benefits of the JIT compiler for running components on Android is the speed of application installation and system updates. Even large applications that require a few minutes of optimization and installation in Android 6.0 can now be installed in just a few seconds. System updates also become faster because of the elimination of optimization steps.

Android 7.0 new features and implications for developers