Camera2Basic:测试
Android Camera2Basic 示例
此示例演示了如何使用 Camera2 API 的基本功能。 您可以了解如何遍历连接到设备的所有相机的特征、显示相机预览和拍照。
介绍
为连接到 Android 设备的各个相机设备提供了一个接口。 它取代了已弃用的 Camera 类。
使用获取所有可用摄像机的列表。 然后您可以使用并找到最适合您需要的相机（前置/后置、分辨率等）。
创建一个实例并打开一个摄像头。 打开相机后即可开始相机预览。
此示例使用 TextureView 来显示相机预览。 创建并设置重复它。
静态图像捕捉需要几个步骤。 首先，您需要通过更新相机预览的 CaptureRequest 来锁定相机的焦点。 然后，以类似的方式，您需要运行一个预捕获序列。 之后，就可以准备拍摄照片了。 创建一个新的 CaptureRequest 并调用 [capture][7]。 完成
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