What is the Google security patch for?

Google security patch is used to fix system vulnerabilities. Google promotes an Android security patch to OEMs, fixes security vulnerabilities, and allows some malicious applications to guide users into phishing websites to steal user information. This vulnerability was first discovered by FireEye, a network security company, which will start a third-party application to use Android permissions to change the icon and default settings of the Android launcher. This vulnerability affects all versions of Android, including Android 4.4.2.

The best way for android devices to run is to have good coding habits: an excellent developer should be good at using common sense, perfect algorithms and standard design patterns. Pay attention to resources, remember to close them when opening them, and try to take them late and put them early. These long-standing coding principles are also applicable to android application development, especially when using basic device services. Keep the blocking operation away from the ui main thread: ensure the flexibility of the application by using asynctask, thread, intentservice and custom background services. Use loading tools to simplify the state management of long-time loading data (such as cursors).

When other programs are running, you cannot delay or stop the application in use. If an operation needs to consume more time and resources, cancel the operation and switch to asynchronous processing, so that the application can keep responding and the user can continue various operations. This method is suitable for reading and writing disks, accessing content providers, databases and the Internet, and solving other needs that take a long time.