Android latest L version, update content

Major modifications to the Android L version

One: New Android Runtime (ART)

New operating environment, 4.4 a second version of art is an optional operating environment, default or Dalvik. But after the Android L version, the default environment is art.

The new features are as follows:

1.ahead-of-time (AOT). Pre-compile in advance, compile the code into executable files before running, and save them.

2. Improved garbage collection function.

3. Improved the bug debugging function.

Most apps do not need to be changed to run in the art environment, but you need to be aware of the situation:

1. Java Native Interface (JNI) technology has been used to run C + + code.

2. You use development tools to generate non-standard code.

3. Garbage collection technology that does not match the content is used because art uses a new garbage collection technology, so there are compatibility issues.

Two: Notifications made some improvements.

1. Color Matching

2. Sound Control

3. Style

Three: Remotecontrolclient

1. Lock screen Some apps need to be changed.

Four: Activitymanager.getrecenttasks ()

1. Use android.app.ActivityManager.getAppTasks() to replace the previous method.

Five: