Maximum Mobility: Listing 2.
JavaScript file for camera interaction.
- By Michael Crump
- 06/01/2012
var pictureSource; // Picture source
var destinationType; // Sets the format of returned value
// Wait for PhoneGap to connect with the device
document.addEventListener("deviceready", onDeviceReady, false);
// PhoneGap is ready to be used!
function onDeviceReady() {
pictureSource = navigator.camera.PictureSourceType;
destinationType = navigator.camera.DestinationType;
}
// Called when a photo is successfully retrieved
function onPhotoDataSuccess(imageData) {
var capturedPhoto = document.getElementById('capturedPhoto');
capturedPhoto.style.display = 'block';
capturedPhoto.src = imageData;
navigator.notification.alert("Picture Successfully Captured!");
}
// Called when a photo is successfully retrieved
function onPhotoURISuccess(imageURI) {
var selectedFromPhotoLibrary = document.getElementById('selectedFromPhotoLibrary');
selectedFromPhotoLibrary.style.display = 'block';
selectedFromPhotoLibrary.src = imageURI;
navigator.notification.alert("Picture Imported Captured!");
}
function capturePhoto() {
// Take picture using device camera and retrieve image
navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 50 });
}
// A button will call this function
//
function getPhoto(source) {
// Retrieve image file location from specified source
navigator.camera.getPicture(onPhotoURISuccess, onFail, { quality: 50,
destinationType: destinationType.FILE_URI,
sourceType: source
});
}
// Error Handling
function onFail(message) {
alert('Failed because: ' + message);
}
About the Author
Michael Crump is a product manager that works at Microsoft on the Azure platform. He is a is a developer, blogger and speaker of topics relating to cloud development. He’s passionate about helping developers understand the benefits of the cloud in a no-nonsense way. You can reach him on Twitter at mbcrump or by following his blog at michaelcrump.net.