androidjs

Camera API

Camera API provide the various functions to interact with camera. In order to use this API you have to add this permission to your package.json file.

android.permission.CAMERA

The following example shows how to init camera in your app

// In front process (web pages)
<html>
    <head>
        // add androidjs.js to get the API's of `Android JS`.
        <script src = "./assets/ipc/androidjs.js" ></script>
    </head>
    <body>
        <video id = "camera" autoplay></video>
    </body>
    <script>
        window.onload = function(){
            app.camera.init(document.getElementById('camera'), {video:true, audio: false});
        }
    </script>
</html>

Methods

`app.camera.init(dom, options)`

dom is HTML dom, where you want to initialise camera.
options is a JavaScript object, which define services
- video it could be just true/false or an object {deviceId: {exact: devices[0]}}
- audio it could be just true/false or an object {deviceId: {exact: devices[0]}}

An example of above code:

app.camera.init(document.getElementById('camera'), {video: true, audio: false});

`app.camera.getDevices(callback)`

callback Function
- devices is list of video devices

Starts gathering information about all available video devices, and calls callback(devices) when finished.

An example of above code:

app.camera.getDevices(function(devices){
    console.log(devices);
})

`app.camera.startRecording(options)`

options Object
- mimeType video type or codec (i.e. video/webm;codecs=vp9)
- bitsPerSecond bitrate (i.e. 100000)

An example of above code:

app.camera.startRecording({mimeType: 'video/webm;codecs=vp9', bitsPerSecond: 100000});

`app.camera.stopRecording()`

An example of above code:

app.camera.stopRecording();

`app.camera.saveRecording(filepath, filename, options)`

filepath where you want to store the recorded video (i.e. /storage/emulated/0/)
filename name of file
options Object
- type video type (i.e. video/webm)

An example of above code:

app.camera.saveRecording('/storage/emulated/0/', 'newVideo1.webm', {type:'video/webm'})

`app.camera.previewRecording(dom, options)`

dom where you want to preview the recorded video
options Object
- type video type (i.e. video/webm)

An example of above code:

// <video id = "preview" autoplay></video>
app.camera.previewRecording(document.getElementById('preview'), {type: 'video/webm'});

`app.camera.getBuffer(options, callback)`

callback Function
- buffer
options Object
- type video type (i.e. video/webm)

An example of above code:

app.camera.getBuffer({type: 'video/webm'}, function(buffer){
    ...
});

`app.camera.takePhoto(cameraDom, previewDom)`

cameraDom dom where the camera is already initialised
previewDom it is optional, if you want to preview the captured image provide the dom for preview otherwise none

An example of above code:

// <img id = "preview" autoplay></img>
app.camera.takePhoto(document.getElementById('camera'), document.getElementById('preview'));

`app.camera.savePhoto(filepath, filename)`

filepath where you want to store the captured photo (i.e. /storage/emulated/0/)
filename name of file

An example of above code:

// <img id = "preview" autoplay></img>
app.camera.savePhoto('/storage/emulated/0/', 'test.webp');

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