鎺夌嚎鐜�

* Copyright (c) 2017. Lorem ipsum dolor sit amet, consectetur adipiscing elit. * Morbi non lorem porttitor neque feugiat blandit. Ut vitae ipsum eget quam lacinia accumsan. * Etiam sed turpis ac ipsum condimentum fringilla. Maecenas magna. * Proin dapibus sapien vel ante. Aliquam erat volutpat. Pellentesque sagittis ligula eget metus. * Vestibulum commodo. Ut rhoncus gravida arcu. */ package com.akingyin.media.camerax.manager import android.graphics.ImageFormat import android.hardware.camera2.CameraCaptureSession import android.hardware.camera2.CameraDevice import android.hardware.camera2.CaptureRequest import android.media.ImageReader import android.util.Size import android.view.Surface import androidx.annotation.NonNull import com.akingyin.media.camerax.CameraXConfig import com.akingyin.media.camerax.ext.logE import com.akingyin.media.camerax.listener.OnCameraCaptureListener import java.util.* /** * @ Description: * @author king * @ Date 2020/7/13 16:25 * @version V1.0 */ class CameraXCaptureManager(val cameraXConfig: CameraXConfig) { private var cameraDevice: CameraDevice? = null private var captureRequestBuilder: CaptureRequest.Builder? = null private var cameraCaptureSession: CameraCaptureSession? = null private var imageReader: ImageReader? = null private var surfaceList: MutableList? = null private var onCameraCaptureListener: OnCameraCaptureListener? = null fun setOnCameraCaptureListener(onCameraCaptureListener: OnCameraCaptureListener){ this.onCameraCaptureListener = onCameraCaptureListener } /** * 开启预览 */ fun startPreview(@NonNull cameraDevice: CameraDevice) { this.cameraDevice = cameraDevice // 创建预览需要的CaptureRequest.Builder captureRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW) // 将imageReader的surface作为CaptureRequest.Builder的目标 captureRequestBuilder?.addTarget(imageReader?.surface!!) // 创建CameraCaptureSession，该对象负责管理处理预览请求和拍照请求 cameraDevice.createCaptureSession(surfaceList, object : CameraCaptureSession.StateCallback() { override fun onConfigured(@NonNull cameraCaptureSession: CameraCaptureSession) { if (null == cameraDevice) { return } // 当摄像头已经准备好时，开始显示预览 this@CameraXCaptureManager.cameraCaptureSession = cameraCaptureSession try { // 自动对焦 captureRequestBuilder?.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE) // 打开闪光灯 captureRequestBuilder?.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH) // 显示预览 val captureRequest = captureRequestBuilder?.build() cameraCaptureSession.setRepeatingRequest(captureRequest, null, null) } catch (e: Exception) { logE("CameraXCaptureManager", "startPreview Exception ${e.message}") } } override fun onConfigureFailed(@NonNull cameraCaptureSession: CameraCaptureSession) { } }, null) } /** * 关闭预览 */ fun stopPreview() { if (null != cameraCaptureSession) { cameraCaptureSession?.close() cameraCaptureSession = null } if (null != cameraDevice) { cameraDevice?.close() cameraDevice = null } if (null != imageReader) { imageReader?.close() imageReader = null } } /** * 初始化ImageReader */ fun initImageReader() { // 初始化ImageReader imageReader = ImageReader.newInstance(cameraXConfig.previewSize.width, cameraXConfig.previewSize.height, ImageFormat.JPEG, 1) imageReader?.setOnImageAvailableListener({ onCameraCaptureListener?.onImageCapture(it.acquireNextImage()) }, null) surfaceList = ArrayList() // 添加Surface作为预览数据的显示界面 surfaceList?.add(cameraXConfig.surface) // 添加ImageReader的Surface，不加入的话，就没有回调回来 surfaceList?.add(imageReader?.surface!!) } /** * 拍照 */ fun takePicture() { if (null == cameraDevice) { return } // 创建拍照需要的CaptureRequest.Builder val captureRequestBuilder = cameraDevice?.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE) // 将imageReader的surface作为CaptureRequest.Builder的目标 captureRequestBuilder?.addTarget(imageReader?.surface!!) // 自动对焦 captureRequestBuilder?.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE) // 自动曝光 captureRequestBuilder?.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH) // 获取手机方向 val rotation = cameraXConfig.activity?.windowManager?.defaultDisplay?.rotation // 根据设备方向计算设置照片的方向 captureRequestBuilder?.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(rotation!!)) //拍照 val captureRequest = captureRequestBuilder?.build() //获取拍照结果 cameraCaptureSession?.capture(captureRequest, null, null) } companion object { private val ORIENTATIONS = SparseIntArray() init { ORIENTATIONS.append(Surface.ROTATION_0, 90) ORIENTATIONS.append(Surface.ROTATION_90, 0) ORIENTATIONS.append(Surface.ROTATION_180, 270) ORIENTATIONS.append(Surface.ROTATION_270, 180) } } }

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