Unity调用手机摄像机识别二维码

本文实现unity调用手机摄像，拍摄，然后识别二维码，显示二维码的内容。

需要导入一个zxing.unity.dll文件,现在这个脚本的识别数据是放在updata里边扫描的 数据量特别大会卡  要是用的话就自己做一下一秒执行一次。我这里没有弄

下载地址：

代码：

using system.threading;
using unityengine;
using zxing;
 
public class webcamerascript : monobehaviour
{
 public string lastresult;
 public string lastresult;
 public color32[] data;
 private bool isquit;
 
 public guitexture mycameratexture;
 private webcamtexture webcameratexture;
 
 private void start()
 {
 // bool success = cameradevice.instance.setfocusmode(cameradevice.focusmode.focus_mode_continuousauto);
 // checks how many and which cameras are available on the device
 for (int cameraindex = 0; cameraindex < webcamtexture.devices.length; cameraindex++)
 {
  // we want the back camera
  if (!webcamtexture.devices[cameraindex].isfrontfacing)
  {
  //webcameratexture = new webcamtexture(cameraindex, screen.width, screen.height);
  webcameratexture = new webcamtexture(cameraindex, 200, 200);
 
  // here we flip the guitexture by applying a localscale transformation
  // works only in landscape mode
  mycameratexture.transform.localscale = new vector3(1, 1, 1);
  }
 }
 
 // here we tell that the texture of coming from the camera should be applied 
 // to our guitexture. as we have flipped it before the camera preview will have the 
 // correct orientation
 mycameratexture.texture = webcameratexture;
 // starts the camera
 webcameratexture.play();
 //enabled=webcamtexture.s
 }
 
 public void showcamera()
 {
 mycameratexture.guitexture.enabled = true;
 webcameratexture.play();
 }
 
 public void hidecamera()
 {
 mycameratexture.guitexture.enabled = false;
 webcameratexture.stop();
 }
 
 private void ongui()
 {
 gui.label(new rect(60, 30*1, screen.width, 20), "lastresult:" + lastresult);
 if (gui.button(new rect(0, 0, 100, 100), "on/off"))
 {
  if (webcameratexture.isplaying)
  hidecamera();
  else
  showcamera();
 }
 }
 
 private void update()
 {
 //data = new color32[webcameratexture.width * webcameratexture.height];
 data = webcameratexture.getpixels32();
 
 decodeqr(webcameratexture.width, webcameratexture.height);
 }
 
 
 private void decodeqr(int w, int h)
 {
 if (isquit)
  return;
 // create a reader with a custom luminance source
 var barcodereader = new barcodereader {autorotate = true, tryharder = true};
 
 // while (true)
 {
  try
  {
  // decode the current frame
  result result = barcodereader.decode(data, w, h);
  if (result != null)
  {
   lastresult = result.text;
   // shouldencodenow = true;
   print("i read out::" + result.text);
  }
 
  // sleep a little bit and set the signal to get the next frame
  thread.sleep(200);
  data = null;
  }
  catch
  {
  }
 }
 }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。