Android 打开 在线 pdf 文件
<!DOCTYPE html>
<html lang="zh-CN">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>H5 PDF 预览</title><script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.4.120/pdf.min.js"></script><style>body { margin: 0; padding: 10px; box-sizing: border-box; }#pdfContainer { width: 100%; min-height: 80vh; border: 1px solid #eee; }.loading { text-align: center; padding: 20px; color: #666; }.error { text-align: center; padding: 20px; color: red; }</style>
</head>
<body>
<div class="loading" id="loading">正在加载PDF...</div>
<div class="error" id="error" style="display: none;"></div>
<div id="pdfContainer"></div><script>pdfjsLib.GlobalWorkerOptions.workerSrc = 'https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.4.120/pdf.worker.min.js';// 从URL参数获取PDF地址function getPdfUrlFromParams() {const urlParams = new URLSearchParams(window.location.search);return urlParams.get('pdfUrl');}// 初始化PDF渲染async function renderPdf() {const container = document.getElementById('pdfContainer');const loading = document.getElementById('loading');const errorDiv = document.getElementById('error');// 获取PDF URLconst pdfUrl = getPdfUrlFromParams();if (!pdfUrl) {loading.style.display = 'none';errorDiv.style.display = 'block';errorDiv.textContent = '未提供PDF文件地址';return;}try {// 获取PDF文档const pdfDoc = await pdfjsLib.getDocument(pdfUrl).promise;loading.style.display = 'none';// 渲染每一页PDFfor (let pageNum = 1; pageNum <= pdfDoc.numPages; pageNum++) {const page = await pdfDoc.getPage(pageNum);// 设置渲染尺寸（适配移动端宽度）const viewport = page.getViewport({ scale: 1 });const scale = window.innerWidth / viewport.width;const scaledViewport = page.getViewport({ scale: scale });// 创建画布容器const canvas = document.createElement('canvas');const context = canvas.getContext('2d');canvas.width = scaledViewport.width;canvas.height = scaledViewport.height;container.appendChild(canvas);// 渲染页面await page.render({canvasContext: context,viewport: scaledViewport}).promise;}} catch (error) {loading.style.display = 'none';errorDiv.style.display = 'block';errorDiv.textContent = 'PDF加载失败，请检查文件地址';console.error('PDF加载错误：', error);}}// 页面加载完成后执行window.onload = renderPdf;
</script>
</body>
</html>将这个文件放在服务器上，让后直接用webView打开，拼接上 pdfUrl= 链接，就Ok了