关于打开相机的openCamera流程参考: Android P Camera2架构-OpenCamera2流程Frameworks层到HAL层(1) 简单介绍新架构右半部分android.hardware.camera2.CameraManager CameraManager的继承关系: 源码路径: frameworks\base\core\java\android\hardware\camera2\CameraManager.java 谷歌原文解释: A system service manager for detecting, characterizing, and connecti