m1ga/ti.imagecrop

Titanium image crop for Android

Titanium Image Cropping Tool (Android)

Android image crop based on: https://github.com/CanHub/Android-Image-Cropper

For the iOS version have a look at https://github.com/hansemannn/titanium-image-crop

📢 Attention:

You have to use a lifecycleContainer like this:

var ImageCrop = require('ti.imagecrop').createImageCrop({
	lifecycleContainer: win
});

Methods:

• createImageCrop

  • Paremeter:
    • lifecycleContainer
    • showCamera: when showCropDialog - image is empty it will show/hide the camera option
    • showGallery: when showCropDialog - image is empty it will show/hide the gallery option
    • blob: pass in a blob if use it as a view

• showCropDialog

  • Parameters:
    • image (String) - path to file; if empty it will show an image picker

• cropImage

• returns blob

You can now use it as a normal View and load a blob in it:

icv = require('ti.imagecrop').createImageCrop({
	width: 300,
	height: 300,
	blob: yourBlob
});
win.add(icv);

Properties

• rotation: rotate the crop view

Events:

• done
  • Parameter: image (TiBlob) - cropped image
• cancel

Example:

const win = Ti.UI.createWindow();
const img = Ti.UI.createImageView({
	top: 90
});
const btn = Ti.UI.createButton({
	title: "crop image (Ti picker)",
	bottom: 0
});
const btn2 = Ti.UI.createButton({
	title: "select image (module picker)",
	bottom: 50
});
const btn3 = Ti.UI.createButton({
	title: "crop image (blob, view)",
	bottom: 100
});

const btnCrop = Ti.UI.createButton({
	top: 40,
	title: "crop",
})
var icv = null;
btnCrop.addEventListener("click", function() {
	if (icv != null) {
		let blob = icv.cropImage();
		img.image = blob;
		img.width = blob.width;
		img.height = blob.height;
		win.remove(icv);
		icv = null;
	}
})
const slider = Ti.UI.createSlider({
	top: 10,
	min: -180,
	max: 180,
	value: 0
})

const ImageCrop = require('ti.imagecrop').createImageCrop({
	lifecycleContainer: win,
	// showCamera: true,
	// showGallery: true
});
ImageCrop.addEventListener("done", function(e) {
	img.image = e.image;
});
ImageCrop.addEventListener("cancel", function(e) {
	alert("cancel");
});


win.add([img, btn, btn2, btn3, btnCrop, slider]);
btn.addEventListener("click", function() {
	Ti.Media.openPhotoGallery({
		success: function(e) {
			// crop image
			ImageCrop.showCropDialog({
				image: e.media.nativePath
			})
		}
	})
})
slider.addEventListener("change", function() {
	if (icv) {
		icv.rotation = slider.value
	}
})
btn2.addEventListener("click", function() {
	// show image picker
	ImageCrop.showCropDialog({})
})


btn3.addEventListener("click", function() {
	// download file and use crop view
	let client = Titanium.Network.createHTTPClient({
		onload: function() {
			icv = require('ti.imagecrop').createImageCrop({
				width: 300,
				height: 300,
				blob: this.responseData
			});
			win.add(icv);
		},
		timeout: 30000
	});
	client.open('GET', 'https://picsum.photos/300/300');
	client.send();
});

win.open();

TODO

Android-Image-Cropper has lots of customization options (e.g. disable/allow rotation, predefined ratios).

Author

Michael Gangolf (@MichaelGangolf / Web)