ap层开发camera一般流程（google标准）

最新推荐文章于 2024-08-06 21:51:28 发布

原创

最新推荐文章于 2024-08-06 21:51:28 发布 · 923 阅读

2 ·

CC 4.0 BY-SA版权

在Android中使用相机，需要在Manifest声明权限并包含相机功能元素。开发步骤包括：获取Camera实例，获取默认设置，根据需求调整设置，设置预览方向，启动预览，拍照，再次启动预览，停止更新预览，释放相机。切换到视频录制模式时，需初始化Camera，允许媒体进程访问，使用MediaRecorder进行录制，完成后重新获取并锁定相机，可继续拍照或录制视频。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

The Camera class is used to set image capture settings, start/stop preview, snap pictures, and retrieve frames for encoding for video. This class is a client for the Camera service, which manages the actual camera hardware.

To access the device camera, you must declare the Manifest.permission.CAMERA permission in your Android Manifest. Also be sure to include the <uses-feature> manifest element to declare camera features used by your application. For example, if you use the camera and auto-focus feature, your Manifest should include the following:

<uses-permission android:name="android.permission.CAMERA" />
 <uses-feature android:name="android.hardware.camera" />
 <uses-feature android:name="android.hardware.camera.autofocus" />

To take pictures with this class, use the following steps: