Unity實(shí)現(xiàn)多平臺(tái)二維碼掃描的方法
小編給大家分享一下Unity實(shí)現(xiàn)多平臺(tái)二維碼掃描的方法，相信大部分人都還不怎么了解，因此分享這篇文章給大家參考一下，希望大家閱讀完這篇文章后大有收獲，下面讓我們一起去了解一下吧！
創(chuàng)新互聯(lián)-專業(yè)網(wǎng)站定制、快速模板網(wǎng)站建設(shè)、高性價(jià)比仁和網(wǎng)站開(kāi)發(fā)、企業(yè)建站全套包干低至880元,成熟完善的模板庫(kù),直接使用。一站式仁和網(wǎng)站制作公司更省心,省錢,快速模板網(wǎng)站建設(shè)找我們，業(yè)務(wù)覆蓋仁和地區(qū)。費(fèi)用合理售后完善，10多年實(shí)體公司更值得信賴。
在unity里做掃二維碼的功能，雖然有插件，但是移動(dòng)端UI一般不能自定義，所以后來(lái)自已做了一個(gè)，直接在c#層掃描解析，UI上就可以自己發(fā)揮了。
上代碼：
這個(gè)是調(diào)用zxing的腳本。
using UnityEngine;
using System.Collections;
using ZXing;
using ZXing.QrCode;
public class QR {
/// <summary>
/// 解析二維碼
/// </summary>
/// <param name="tex"></param>
/// <returns></returns>
public static string Decode(Texture2D tex) {
return DecodeColData(tex.GetPixels32(), tex.width, tex.height); //通過(guò)reader解碼
}
public static string DecodeColData(Color32[] data, int w, int h) {
BarcodeReader reader = new BarcodeReader();
Result result = reader.Decode(data, w, h); //通過(guò)reader解碼
//GC.Collect();
if (result == null)
return "";
else {
return result.Text;
}
}
/// <summary>
/// 生成二維碼
/// </summary>
/// <param name="content"></param>
/// <param name="len"></param>
/// <returns></returns>
public static Texture2D GetQRTexture(string content, int len = 256) {
var bw = new BarcodeWriter();
bw.Format = BarcodeFormat.QR_CODE;
bw.Options = new ZXing.Common.EncodingOptions() {
Height = len,
Width = len
};
var cols = bw.Write(content);
Texture2D t = new Texture2D(len, len);
t.SetPixels32(cols);
t.Apply();
return t;
}
}然后是封裝：
using UnityEngine;
using System.Collections;
using System;
using UnityEngine.UI;
using System.Timers;
/// <summary>
/// 二維碼解析工具
/// 關(guān)鍵函數(shù):
/// public static QRHelper GetInst() --得到單例
/// public event Action<string> OnQRScanned; --掃描回調(diào)
/// public void StartCamera(int index) --啟動(dòng)攝像頭
/// public void StopCamera() --停止攝像頭
/// public void SetToUI(RawImage raw,int UILayoutW,int UILayoutH) --把攝像機(jī)畫(huà)面設(shè)置到一個(gè)rawimage上并使它全屏顯示
/// </summary>
public class QRHelper {
public event Action<string> OnQRScanned;
private static QRHelper _inst;
public static QRHelper GetInst() {
if (_inst == null) {
_inst = new QRHelper();
}
return _inst;
}
private int reqW = 640;
private int reqH = 480;
private WebCamTexture webcam;
Timer timer_in, timer_out;
/// <summary>
/// 啟動(dòng)攝像頭
/// </summary>
/// <param name="index">手機(jī)后置為0，前置為1</param>
public void StartCamera(int index) {
StopCamera();
lock (mutex) {
buffer = null;
tbuffer = null;
}
var dev = WebCamTexture.devices;
webcam = new WebCamTexture(dev[index].name);
webcam.requestedWidth = reqW;
webcam.requestedHeight = reqH;
webcam.Play();
stopAnalysis = false;
InitTimer();
timer_in.Start();
timer_out.Start();
}
/// <summary>
/// 停止
/// </summary>
public void StopCamera() {
if (webcam!=null) {
webcam.Stop();
UnityEngine.Object.Destroy(webcam);
Resources.UnloadUnusedAssets();
webcam = null;
stopAnalysis = true;
timer_in.Stop();
timer_out.Start();
timer_in = null;
timer_out = null;
}
}
/// <summary>
/// 把攝像機(jī)畫(huà)面設(shè)置到一個(gè)rawimage上并使它全屏顯示
/// </summary>
/// <param name="raw">rawimage</param>
/// <param name="UILayoutW">UI布局時(shí)的寬度</param>
/// <param name="UILayoutH">UI布局時(shí)的高度</param>
public void SetToUI(RawImage raw,int UILayoutW,int UILayoutH){
raw.GetComponent<RectTransform>().sizeDelta = GetWH(UILayoutW,UILayoutH);
int d = -1;
if (webcam.videoVerticallyMirrored) {
d = 1;
}
raw.GetComponent<RectTransform>().localRotation *= Quaternion.AngleAxis(webcam.videoRotationAngle, Vector3.back);
float scaleY = webcam.videoVerticallyMirrored ? -1.0f : 1.0f;
raw.transform.localScale = new Vector3(1, scaleY * 1, 0.0f);
raw.texture = webcam;
raw.color = Color.white;
}
//在考慮可能旋轉(zhuǎn)的情況下計(jì)算UI的寬高
private Vector2 GetWH(int UILayoutW, int UILayoutH) {
int Angle = webcam.videoRotationAngle;
Vector2 init = new Vector2(reqW, reqH);
if ( Angle == 90 || Angle == 270 ) {
var tar = init.ScaleToContain(new Vector2(UILayoutH,UILayoutW));
return tar;
}
else {
var tar = init.ScaleToContain(new Vector2(UILayoutW, UILayoutH));
return tar;
}
}
private void InitTimer() {
timer_in = new Timer(500);
timer_in.AutoReset = true;
timer_in.Elapsed += (a,b) => {
ThreadWrapper.Invoke(WriteDataBuffer);
};
timer_out = new Timer(900);
timer_out.AutoReset = true;
timer_out.Elapsed += (a,b)=>{
Analysis();
};
}
private Color32[] buffer = null;
private Color32[] tbuffer = null;
private object mutex = new object();
private bool stopAnalysis = false;
int dw, dh;
private void WriteDataBuffer() {
lock (mutex) {
if (buffer == null && webcam!=null) {
buffer = webcam.GetPixels32();
dw = webcam.width;
dh = webcam.height;
}
}
}
//解析二維碼
private void Analysis() {
if (!stopAnalysis) {
lock (mutex) {
tbuffer = buffer;
buffer = null;
}
if (tbuffer == null) {
;
}
else {
string str = QR.DecodeColData(tbuffer, dw, dh);
tbuffer = null;
if (!str.IsNullOrEmpty() && OnQRScanned != null) {
ThreadWrapper.Invoke(() => {
if (OnQRScanned!=null)
OnQRScanned(str);
});
}
}
}
tbuffer = null;
}
}調(diào)用方式如下，用了pureMVC，可能理解起來(lái)有點(diǎn)亂，也不能直接用于你的工程，主要看OnRegister和OnRemove里是怎么啟動(dòng)和停止的，以及RegQRCB、RemoveQRCB、OnQRSCcanned如何注冊(cè)、移除以及響應(yīng)掃描到二維碼的事件的。在onregister中，由于ios上畫(huà)面有鏡象，所以把rawimage的scale的y置為了-1以消除鏡像：
using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using PureMVC.Patterns;
using PureMVC.Interfaces;
/// <summary>
/// 掃描二維碼界面邏輯
/// </summary>
public class ScanQRMediator : Mediator {
AudioProxy audio;
public QRView TarView {
get {
return base.ViewComponent as QRView;
}
}
public ScanQRMediator()
: base("ScanQRMediator") {
}
string NextView = "";
bool isInitOver = false;
int cameraDelay = 1;
public override void OnRegister() {
base.OnRegister();
if (Application.platform == RuntimePlatform.IPhonePlayer) {
cameraDelay = 5;
}
else {
cameraDelay = 15;
}
audio = AppFacade.Inst.RetrieveProxy<AudioProxy>("AudioProxy");
TarView.BtnBack.onClick.AddListener(BtnEscClick);
QRHelper.GetInst().StartCamera(0);
TarView.WebcamContent.rectTransform.localEulerAngles = Vector3.zero;
CoroutineWrapper.EXEF(cameraDelay, () => {
RegQRCB();
QRHelper.GetInst().SetToUI(TarView.WebcamContent, 1536, 2048);
if (Application.platform == RuntimePlatform.IPhonePlayer) {
TarView.WebcamContent.rectTransform.localScale = new Vector3(1, -1, 0);
}
isInitOver = true;
});
UmengStatistics.PV(TarView);
//暫停背景音樂(lè)
audio.SetBGActive(false);
}
public override void OnRemove() {
base.OnRemove();
TarView.BtnBack.onClick.RemoveListener(BtnEscClick);
if (NextView != "UnlockView") {
audio.SetBGActive(true);
}
NextView = "";
isInitOver = false;
}
bool isEsc = false;
void BtnEscClick() {
if (isEsc || !isInitOver) {
return;
}
isEsc = true;
TarView.WebcamContent.texture = null;
TarView.WebcamContent.color = Color.black;
RemoveQRCB();
QRHelper.GetInst().StopCamera();
CoroutineWrapper.EXEF(cameraDelay, () => {
isEsc = false;
if (Application.platform == RuntimePlatform.IPhonePlayer) {
ToUserInfoView();
}
else {
string origin = TarView.LastArg.SGet<string>("origin");
if (origin == "ARView") {
ToARView();
}
else if (origin == "UserInfoView") {
ToUserInfoView();
}
else {
ToARView();
}
}
});
}
void ToARView() {
AppFacade.Inst.RemoveMediator(this.MediatorName);
ViewMgr.GetInst().ShowView(TarView, "ARView", null);
}
void ToUserInfoView() {
AppFacade.Inst.RemoveMediator(this.MediatorName);
ViewMgr.GetInst().ShowView(TarView, "UserInfoView", null);
var v = ViewMgr.GetInst().PeekTop();
var vc = new UserInfoMediator();
vc.ViewComponent = v;
AppFacade.Inst.RegisterMediator(vc);
}
int reg = 0;
void RegQRCB() {
if (reg == 0) {
QRHelper.GetInst().OnQRScanned += OnQRScanned;
reg = 1;
}
}
void RemoveQRCB() {
if (reg == 1) {
QRHelper.GetInst().OnQRScanned -= OnQRScanned;
reg = 0;
}
}
bool isQRJump = false;
void OnQRScanned(string qrStr) {
if (isQRJump) {
return;
}
isQRJump = true;
TarView.WebcamContent.texture = null;
TarView.WebcamContent.color = Color.black;
RemoveQRCB();
QRHelper.GetInst().StopCamera();
NextView = "UnlockView";
CoroutineWrapper.EXEF(cameraDelay, () => {
isQRJump = false;
AppFacade.Inst.RemoveMediator(this.MediatorName);
audio.PlayScanedEffect();
#if YX_DEBUG
Debug.Log("qr is :"+qrStr);
Toast.ShowText(qrStr,1.5f);
#endif
ViewMgr.GetInst().ShowView(TarView, "UnlockView", HashtableEX.Construct("QRCode", qrStr, "origin", TarView.LastArg.SGet<string>("origin")));
var v = ViewMgr.GetInst().PeekTop();
var vc = new UnlockMediator();
vc.ViewComponent = v;
AppFacade.Inst.RegisterMediator(vc);
});
}
}最后，放上zxing.unity.dll,放在plugins里就可以了。
以上是“Unity實(shí)現(xiàn)多平臺(tái)二維碼掃描的方法”這篇文章的所有內(nèi)容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內(nèi)容對(duì)大家有所幫助，如果還想學(xué)習(xí)更多知識(shí)，歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道！
當(dāng)前標(biāo)題：Unity實(shí)現(xiàn)多平臺(tái)二維碼掃描的方法
標(biāo)題URL：http://m.rwnh.cn/article40/jipcho.html
成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián)，為您提供網(wǎng)站收錄、品牌網(wǎng)站設(shè)計(jì)、App開(kāi)發(fā)、企業(yè)網(wǎng)站制作、網(wǎng)站內(nèi)鏈、用戶體驗(yàn)
聲明：本網(wǎng)站發(fā)布的內(nèi)容（圖片、視頻和文字）以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主，如果涉及侵權(quán)請(qǐng)盡快告知，我們將會(huì)在第一時(shí)間刪除。文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng)，如需處理請(qǐng)聯(lián)系客服。電話：028-86922220；郵箱：631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載，或轉(zhuǎn)載時(shí)需注明來(lái)源： 創(chuàng)新互聯(lián)
