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參考android相機調用，http://blog.csdn.net/yanzi1225627/article/details/33028041/，謝謝
相機怎麼調用就不做贅述了，下面是js調用相機的代碼：
java：
1 ** 2 * Created by Administrator on 2016/6/24 0024. 3 */ 4 public class QRCodeHtmlActivity extends Activity { 5 /** 6 * 網頁 7 */ 8 private WebView wvQRCode; 9 @Override10 protected void onCreate(Bundle savedInstanceState) {11 super.onCreate(savedInstanceState);12 setContentView(R.layout.activity_html_qrcode);13 initView();14 setWebView();15 }16 17 private void initView() {18 wvQRCode = (WebView) findViewById(R.id.wv_qrcode);19 }20 21 /**22 * 設定網頁23 */24 private void setWebView(){25 //允許JavaScript執行26 wvQRCode.getSettings().setJavaScriptEnabled(true);27 //向js傳遞對象28 wvQRCode.addJavascriptInterface(new ShowCamera(),"camera");29 //不會node的小夥伴可以儲存到assets30 //wvQRCode.loadUrl("file:///android_asset/QRCode.html");31 //訪問網頁32 wvQRCode.loadUrl("http://192.168.253.1:3000/htmls/QRCode.html");33 }34 public final class ShowCamera {35 //Html調用此方法傳遞資料，註解一定要留著否則會出錯36 @JavascriptInterface37 public void showCamera() {38 Intent intent = new Intent(QRCodeHtmlActivity.this, QRCodeSurfaceActivity.class);39 //調用開啟相機的介面40 QRCodeHtmlActivity.this.startActivity(intent);41 }42 }43 }
html：
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <title>二維碼調用</title> 6 <script type="text/javascript"> 7 function showQRCode() { 8 window.camera.showCamera(); 9 }10 </script>11 </head>12 <body>13 <h3>本例子是點擊按鈕調用相機掃描二維碼</h3>14 <input type="button" name="" value="點擊調用" onclick="javascript:showQRCode()"/>15 </body>16 </html>
github： https://github.com/weifengzz/AndroidJSQRCode
Android與JS混編（js調用android相機）
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