First of all I am new in Xamarin.Form. I am trying to get best from Google but some of functionality I am not able to get even searched a lot.
I am creating a Xamarin.Form app. In that app I want to provide a functionality of image filter. In that, the image captured by user or get from their internal memory should by filter.
I have tried to search on google to get some idea for it in Xamarin.Form but I still not get any link which can help me to get start.
First of all I don't know whether it is possible in Xamarin.Form or not. Can anybody suggest me a link or idea to achieve it?
I attached a Screenshot so you can easily understand the problem.
Screenshot
There are no out of the box APIs in Xamarin.Forms for Image filters.
Each platforms handles the images differently, you will need to implement these filters per platform bases.
You can find the instructions for iOS here and here for Android, then you can use the DependencyServices to access them in Forms app
Related
I am a complete beginner at react-native. I am trying to create an app where i can take multiple photos and add a tag/label with a link to a website to each of the photos. These links when tapped need to take the user to the specified website. I also want to be able to save all of the tags along with the images for later in the app. I have found some resources(components) regarding this but as a beginner, i do not know how to use any of them. I am listing these below. If anyone can help to use these or give me any direction as to how i can make this project, i would be really grateful.
resources i found:
https://github.com/skicson/react-native-image-annotation
https://github.com/JimmyDaddy/react-native-image-marker
The problem
So, I am developing a react native application and I am facing the callenge of selecting multiple images from the user gallery. Just like apps like WhatsApp, Telegram, Twitter and even Reddit do. So with that in mind, i tried to use launchImageLibraryAsync from expo-image-picker but, as specified in their documentation, the "multiple selecion" of images is only supported on the web.
What I have thinked of
So, based on several searches, it seemed like i had to build my own "Gallery". To do this, so far i've tried to use #react-native-community/cameraroll and expo-media-library, but both of them requires that we pass the first property to the getPhotos (for #react-native-community/cameraroll) or to the getAssetsAsync (for expo-media-library) functions, which defines the first items to be fetched. This is a problem because I do not want to fetch like 20 items and then, when the user reaches the end of the list, it fetches more 20 items. I need something like this (this example is from Telegram). You can see that the app never stops me from scrolling, it goes all the way through my entire gallery.
What would also be nice
If you use reddit mobile, you can see that you can also select multiple photos using the several Apps like Google Photos, Files, Google Drive and so on.
This would be even nicer because I wouldn't need to implement a custom made Picker. Do you guys know how could I implement this?
OBS: I am using Expo with Bare Workflow, so I can use just about any package. I also opened a discussion at the Expo repo about it. You can check it here: https://github.com/expo/expo/discussions/15210.
Thank you in advance :)
I have been using this package called expo-images-picker check it out. It has similar function to what you need. It works in Mobile as well.
Link here
I want to display data like most social network apps use now. They use a lot of separated frames. In each frame it has texts, pictures, buttons and something else. I absolutely don't know how to do this. I think I can use table view and use grouped style (remove group name label) to display it but I don't know whether I can put button on it and whether it is the smartest way to fix my problem.
Can you explain clearly for me or just give me tutorial, links or something related to it?
An experience shared by a Facebook developer on how they built the iOS app.
https://www.facebook.com/notes/facebook-engineering/under-the-hood-rebuilding-facebook-for-ios/10151036091753920
Anyone know of a way to get a volume control widget similar to iTunes?
Not sure how close you'll get but the tutorial below shows how to apply custom themes via images to a UISlider. I haven't tried it yet but I was looking at it the other day.
http://www.applausible.com/blog/?p=250
I found it when browsing the site below which is also a good resource when trying to find controls
http://cocoacontrols.com/platforms/ios/controls
Hope that helps
I'm evaluating using Titanium for a project that makes videos from browser based animations. I was hoping for a way to take screenshots from within the app for each frame. The documentation of takeScreenshot seems a little slim so I was hoping to ask before I build a prototype.
Does take screenshot get the full document, or just the visible content?
Does the screenshot include window chrome?
Someone from titanium QA was able to answer the question. takeScreenshot actually takes a screenshot of the whole desktop.