Android WebView and JavaScript to interact

HTML5 app Development has the advantages of rapid development, cross-platform, but when the customer needs to access the camera or the camera and other hardware, the H5 will be limited, you must call the native method for device access. Here is a brief description of how JS and native methods call each other:

1 in WebView configuration, first support JS and JS interface access:

Here Jshook is a Java class:

Here is just a demo JS can call the hardware, but did not realize how to upload photos to the server.

2 JS Method writing

The above registered Jshook object, then JS in the KZ, the root node is the window, that is, Window.kz.QR () is webview in the JSHOOK.QR ()

3 Effect Preview

Click Sweep,

Android WebView and JavaScript to interact