Android webview interacts with javascript, androidwebview

Android webview interacts with javascript, androidwebview

HTML5 app development has the advantages of fast development and cross-platform. However, when a customer needs to access a camera or call a camera or other hardware, H5 has restrictions and must call native methods for device access. The following describes how JS and native Methods call each other:

1. Configure in webview. First, access through JS and JS interfaces is supported:

Here, JSHook is a Java class:

Here we only demonstrate how JS can call hardware, but it does not upload photos to the server.

2 JS method writing

The JSHook object registered above, and for kz in JS, the root node is window, that is, window. kz. QR () is JSHook. QR () in webview ()

3. effect Preview

Click scan,