扫码页:改.vue页面+本地quagga2库,无蒙版实时扫码
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97694732@qq.com
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@ -20,60 +20,32 @@
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position: absolute;
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top: 0; left: 0;
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}
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/* 隐藏 quagga 的取景框 canvas */
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#scanner-container canvas {
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display: none !important;
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}
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/* 关闭按钮 */
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#scanner-container canvas { display: none !important; }
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.close-btn {
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position: fixed;
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top: 60rpx;
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left: 30rpx;
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width: 60rpx;
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height: 60rpx;
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position: fixed; top: 30px; left: 15px;
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width: 40px; height: 40px;
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border-radius: 50%;
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background: rgba(255,255,255,0.2);
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display: flex;
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align-items: center;
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justify-content: center;
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display: flex; align-items: center; justify-content: center;
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z-index: 9999;
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color: #fff;
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font-size: 36rpx;
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color: #fff; font-size: 22px;
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}
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/* tip */
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.tip {
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position: fixed;
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bottom: 120rpx;
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left: 0;
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right: 0;
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text-align: center;
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z-index: 9999;
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position: fixed; bottom: 60px; left: 0; right: 0;
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text-align: center; z-index: 9999;
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}
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.tip-text {
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display: inline-block;
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color: #fff;
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font-size: 28rpx;
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color: #fff; font-size: 14px;
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background: rgba(0,0,0,0.5);
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padding: 12rpx 30rpx;
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border-radius: 40rpx;
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padding: 6px 16px; border-radius: 20px;
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}
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/* 加载/错误提示 */
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.loading {
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position: fixed;
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top: 50%;
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left: 50%;
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position: fixed; top: 50%; left: 50%;
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transform: translate(-50%, -50%);
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color: #fff;
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font-size: 28rpx;
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z-index: 9999;
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color: #fff; font-size: 14px; z-index: 9999;
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text-align: center;
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}
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/* 适配 rpx 单位：假设 750rpx = 屏幕宽 */
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@media (min-width: 400px) {
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.close-btn { width: 40px; height: 40px; font-size: 22px; top: 40px; left: 20px; }
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.tip-text { font-size: 16px; padding: 8px 20px; border-radius: 28px; }
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.tip { bottom: 80px; }
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}
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</style>
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</head>
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<body>
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@ -82,17 +54,24 @@
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<div class="tip"><span class="tip-text" id="tipText">对准条码自动识别</span></div>
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<div class="loading" id="loadingText">正在启动摄像头...</div>
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<script src="https://cdn.jsdelivr.net/npm/quagga2/dist/quagga.min.js"></script>
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<script src="../js/quagga.min.js"></script>
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<script>
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var detected = false;
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var closeBtn = document.getElementById('closeBtn');
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var loadingText = document.getElementById('loadingText');
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var tipText = document.getElementById('tipText');
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var loadingText = document.getElementById('loadingText');
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function sendToApp(action, code) {
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// UniApp WebView postMessage
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if (window.uni && window.uni.postMessage) {
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window.uni.postMessage({ data: { action: action, code: code || '' } });
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}
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// fallback: 5+ webview API
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if (window.plus && window.plus.webview) {
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var wv = plus.webview.currentWebview();
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if (wv && wv.postMessageToParent) {
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wv.postMessageToParent({ action: action, code: code || '' });
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}
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}
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}
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function closeCamera() {
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@ -100,50 +79,46 @@
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sendToApp('close');
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}
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closeBtn.addEventListener('click', closeCamera);
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document.getElementById('closeBtn').addEventListener('click', closeCamera);
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function startQuagga() {
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if (typeof Quagga === 'undefined') {
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loadingText.innerText = '加载解码库失败';
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return;
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}
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Quagga.init({
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inputStream: {
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name: 'Live',
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type: 'LiveStream',
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target: document.querySelector('#scanner-container'),
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constraints: {
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width: { ideal: 640 },
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height: { ideal: 480 },
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facingMode: 'environment'
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width: 640, height: 480, facingMode: 'environment'
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}
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},
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decoder: {
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readers: [
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'ean_reader',
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'ean_8_reader',
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'upc_reader',
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'code_128_reader',
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'code_39_reader'
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],
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readers: ['ean_reader', 'ean_8_reader', 'upc_reader', 'code_128_reader', 'code_39_reader'],
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debug: false
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},
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locator: {
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halfSample: false,
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patchSize: 'large'
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},
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locator: { halfSample: false, patchSize: 'large' },
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numOfWorkers: 2,
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frequency: 5
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}, function(err) {
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if (err) {
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loadingText.innerText = '摄像头启动失败，请检查权限';
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console.error('Quagga init error:', err);
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setTimeout(function() {
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loadingText.innerText = '点击返回';
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closeBtn.addEventListener('click', function() {
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sendToApp('close');
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});
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}, 2000);
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console.error('Quagga error:', err);
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return;
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}
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loadingText.style.display = 'none';
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Quagga.start();
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// 启动成功后定期检查有没有画面
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setTimeout(function() {
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var video = document.querySelector('#scanner-container video');
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if (video && video.videoWidth > 0) {
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console.log('Camera OK:', video.videoWidth, 'x', video.videoHeight);
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} else {
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console.warn('Camera may not have started');
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}
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}, 2000);
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});
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}
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@ -151,48 +126,23 @@
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if (detected) return;
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var code = result && result.codeResult && result.codeResult.code;
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if (!code) return;
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// ISBN 通常是 13 位数字，但也接受其他格式
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code = code.replace(/\D/g, '');
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if (code.length === 13 || code.length === 12 || code.length === 10) {
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if (code.length >= 10 && code.length <= 14) {
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detected = true;
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tipText.innerText = '识别成功';
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Quagga.stop();
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try { Quagga.stop(); } catch(e) {}
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setTimeout(function() {
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sendToApp('scanned', code);
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}, 300);
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}
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});
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// 等待 UniApp 桥接就绪后启动
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function waitForBridge() {
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if (window.uni && window.uni.postMessage) {
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startQuagga();
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} else {
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document.addEventListener('UniAppJSBridgeReady', function() {
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startQuagga();
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});
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// 降级：2秒后直接启动
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setTimeout(function() {
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if (typeof Quagga !== 'undefined') {
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startQuagga();
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}
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}, 2000);
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}
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}
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// 页面加载完成后启动
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// 启动
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if (document.readyState === 'complete') {
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waitForBridge();
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startQuagga();
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} else {
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window.addEventListener('load', waitForBridge);
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window.addEventListener('load', startQuagga);
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}
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// 页面不可见时停止摄像头节省资源（可选）
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document.addEventListener('visibilitychange', function() {
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if (document.hidden) {
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try { Quagga.stop(); } catch(e) {}
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}
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});
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</script>
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</body>
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</html>
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6
hybrid/js/quagga.min.js
vendored
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6
hybrid/js/quagga.min.js
vendored
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File diff suppressed because one or more lines are too long
@ -58,10 +58,7 @@
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"path": "pages/upload/scan-isbn",
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"style": {
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"navigationBarTitleText": "",
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"navigationStyle": "custom",
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"app-plus": {
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"render": "native"
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}
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"navigationStyle": "custom"
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}
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}
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],
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@ -15,7 +15,6 @@
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if (!data) return
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const action = data.action || ''
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if (action === 'scanned' && data.code) {
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// 发送结果回上传页面
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uni.$emit('scan-isbn-result', data.code)
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uni.navigateBack()
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} else if (action === 'close') {
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