ionic-framework
Appareil photo et accès à une bibliothèque de photos à partir d'une application ionique
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Camara ouverte et galerie de photos
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Security-Policy" content="default-src *; script-src 'self' 'unsafe-inline' 'unsafe-eval' *; style-src 'self' 'unsafe-inline' *"/>
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
<title></title>
<link href="lib/ionic/css/ionic.css" rel="stylesheet">
<link href="css/style.css" rel="stylesheet">
<!-- IF using Sass (run gulp sass first), then uncomment below and remove the CSS includes above
<link href="css/ionic.app.css" rel="stylesheet">
-->
<!-- ionic/angularjs js -->
<script src="lib/ionic/js/ionic.bundle.js"></script>
<!-- cordova script (this will be a 404 during development) -->
<script src="js/ng-cordova.min.js"></script>
<script src="cordova.js"></script>
<!-- your app's js -->
<script src="js/app.js"></script>
<script src="js/controllers.js"></script>
<script src="js/services.js"></script>
</head>
<body ng-app="starter">
<ion-content class="has-header padding" ng-controller="ImageController">
<button class="button button-full button-energized" ng-click="addMedia()">
Add image
</button>
<button class="button button-full button-positive" ng-click="sendEmail()">
Send mail
</button>
<br><br>
<ion-scroll direction="y" style="height:200px; min-height: 200px; overflow: scroll; white-space: nowrap;">
<img ng-repeat="image in images track by $index" ng-src="data:image/jpeg;base64,{{image}}" style="height:200px; padding: 5px 5px 5px 5px;"/>
</ion-scroll>
</ion-content>
</body>
</html>
controller.js
angular.module('starter')
.controller('ImageController', function($scope, $cordovaDevice, $cordovaFile, $ionicPlatform, $cordovaEmailComposer, $ionicActionSheet, ImageService, FileService) {
$ionicPlatform.ready(function() {
$scope.images = FileService.images();
$scope.$apply();
});
$scope.addMedia = function() {
$scope.hideSheet = $ionicActionSheet.show({
buttons: [
{ text: 'Take photo' },
{ text: 'Photo from library' },
{ text: '<b ng-disabled="user.length<1">Delete</b>',
type: 'input type="file"'}
],
titleText: 'Add images',
cancelText: 'Cancel',
buttonClicked: function(index) {
$scope.addImage(index);
}
});
}
$scope.addImage = function(type) {
$scope.hideSheet();
ImageService.handleMediaDialog(type).then(function() {
$scope.$apply();
});
}
$scope.sendEmail = function() {
if ($scope.images != null && $scope.images.length > 0) {
var mailImages = [];
var savedImages = $scope.images;
for (var i = 0; i < savedImages.length; i++) {
mailImages.push('base64:attachment'+i+'.jpg//' + savedImages[i]);
}
$scope.openMailComposer(mailImages);
}
}
$scope.openMailComposer = function(attachments) {
var bodyText = '<html><h2>My Images</h2></html>';
var email = {
to: '',
attachments: attachments,
subject: 'Devdactic Images',
body: bodyText,
isHtml: true
};
$cordovaEmailComposer.open(email, function(){
console.log('email view dismissed');
}, this);
}
});
service.js
angular.module('starter')
.factory('FileService', function() {
var images;
var IMAGE_STORAGE_KEY = 'dav-images';
function getImages() {
var img = window.localStorage.getItem(IMAGE_STORAGE_KEY);
if (img) {
images = JSON.parse(img);
} else {
images = [];
}
return images;
};
function addImage(img) {
images.push(img);
window.localStorage.setItem(IMAGE_STORAGE_KEY, JSON.stringify(images));
};
return {
storeImage: addImage,
images: getImages
}
})
.factory('ImageService', function($cordovaCamera, FileService, $q, $cordovaFile) {
function optionsForType(type) {
var source;
switch (type) {
case 0:
source = Camera.PictureSourceType.CAMERA;
break;
case 1:
source = Camera.PictureSourceType.PHOTOLIBRARY;
break;
}
return {
quality: 90,
destinationType: Camera.DestinationType.DATA_URL,
sourceType: source,
allowEdit: false,
encodingType: Camera.EncodingType.JPEG,
popoverOptions: CameraPopoverOptions,
saveToPhotoAlbum: false,
correctOrientation:true
};
}
function saveMedia(type) {
return $q(function(resolve, reject) {
var options = optionsForType(type);
$cordovaCamera.getPicture(options).then(function(imageBase64) {
FileService.storeImage(imageBase64);
});
})
}
return {
handleMediaDialog: saveMedia
}
});
Pour Ionic 3 Exemple
Installez les plugins Native Cordova et Ionic:
$ ionic cordova plugin add cordova-plugin-camera
$ npm install --save @ionic-native/camera
Votre app.module.ts devra injecter la caméra:
import { Camera } from '@ionic-native/camera';
..........
@NgModule({
declarations: [
MyApp
],
imports: [
BrowserModule,
IonicModule.forRoot(MyApp),
...........
],
bootstrap: [IonicApp],
entryComponents: [
MyApp
],
providers: [
StatusBar,
SplashScreen,
Camera,
{provide: ErrorHandler, useClass: IonicErrorHandler},
..........
]
})
export class AppModule {}
L'appareil photo peut être utilisé avec la feuille d'action facilement avec Ionic 3, votre page.ts sera comme ci-dessous:
import { Camera, CameraOptions } from '@ionic-native/camera';
.........
export class YourPage {
private base64:any;
constructor(private camera: Camera,private actionsheetCtrl: ActionSheetController) { }
cameragalleryfun(){
let actionSheet = this.actionsheetCtrl.create({
title: 'Camera-Gallery',
cssClass: 'action-sheets-basic-page',
buttons: [
{
text: 'Camera',
icon: 'camera',
handler: () => {
//console.log('Camera');
const options: CameraOptions = {
quality: 60,
destinationType: this.camera.DestinationType.DATA_URL,
encodingType: this.camera.EncodingType.JPEG,
mediaType: this.camera.MediaType.PICTURE,
sourceType : this.camera.PictureSourceType.CAMERA,
targetWidth: 500,
saveToPhotoAlbum: false,
correctOrientation:true
}
this.camera.getPicture(options).then((imageData) => {
this.base64 = 'data:image/jpeg;base64,' + imageData;
}, (err) => {
// Handle error
});
}
},
{
text: 'Gallery',
icon: 'images',
handler: () => {
//console.log('Gallery');
const options: CameraOptions = {
quality: 60,
destinationType: this.camera.DestinationType.DATA_URL,
encodingType: this.camera.EncodingType.JPEG,
mediaType: this.camera.MediaType.PICTURE,
sourceType : this.camera.PictureSourceType.PHOTOLIBRARY,
targetWidth: 500,
saveToPhotoAlbum: false,
correctOrientation:true
}
this.camera.getPicture(options).then((imageData) => {
this.base64 = 'data:image/jpeg;base64,' + imageData;
}, (err) => {
// Handle error
});
}
},
{
text: 'Cancel',
role: 'cancel', // will always sort to be on the bottom
icon: 'close',
handler: () => {
//console.log('Cancel clicked');
}
}
]
});
actionSheet.present();
}
}
Appelez la fonction cameragalleryfun partir de n'importe quel événement comme cliquez sur le bouton, cela retournera la chaîne base64 pour l'image. Plus d'option peut être appliquée. pour une option supplémentaire, voir: https://github.com/apache/cordova-plugin-camera
Modified text is an extract of the original Stack Overflow Documentation
Sous licence CC BY-SA 3.0
Non affilié à Stack Overflow
