Getting started with Android Camere development (1): First introduction to Camera

Getting started with Android Camere development (1): First introduction to Camera

preliminary understanding

In Android development, camera is a common and important functional module. It allows us to capture photos and record videos through the device's camera, adding image processing and visual interaction capabilities to our applications.

As the Android system continues to develop and be updated, camera functions are also constantly improved and enhanced. Each camera version introduces new features, APIs, and performance improvements to provide a better user experience and greater functionality.

This article starts with the initialization, preview, photography and frame callback of Camera1 to practice development work with everyone, and understand the functional characteristics of Camera1 from practice.

Initialize camera

Before using the Camera1 API, we first need to initialize the camera. This involves obtaining a camera instance, setting camera parameters, and configuring the camera's preview interface. By using the Camera class and related callback interfaces, we can interact with the camera.

From simple to complex, let’s first understand the simplest initialization of camera1

// 定义相机实例
private Camera mCamera;
private int width = 1920;
private int height = 1080;

// 初始化相机方法，注意要想让代码跑起来，要钱申请Camera权限
private void initCamera() {
    try {
        // 获取相机实例
        mCamera = Camera.open();

        // 设置相机参数
        Camera.Parameters parameters = mCamera.getParameters();