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When to use PNG or JPG in iPhone development?
... the typical compression and image quality is usually quite sufficient for photos.
Use JPG's for photos and for anything large, and PNG's for anything small and/or designed to be displayed "pixel perfect" (e.g. small icons) or as a part of a composited transparent overlay, etc.
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How to resize Image in Android?
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public Bitmap resizeBitmap(String photoPath, int targetW, int targetH) {
BitmapFactory.Options bmOptions = new BitmapFactory.Options();
bmOptions.inJustDecodeBounds = true;
BitmapFactory.decodeFile(photoPath, bmOptions);
int photoW = bmOptions...
SAML vs federated login with OAuth
...orization of resources. It does not deal with authentication.
Example : A photo sharing mobile app (OAuth consumer) that allows users import photos from their Instagram account (OAuth provider) which sends a temporary access token or key to the photo sharing app that expires after some hours.
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UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
...low, it needs to be reloaded every time you come back to the screen. Their photos may get updated... you don't want to see a photo from 5 years ago...
viewDidLoad: Whatever processing you have that needs to be done once.
viewWilLAppear: Whatever processing that needs to change every time the page ...
iOS Image Orientation has Strange Behavior
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For more detail read this answer http://graphicssoft.about.com/od/digitalphotography/f/sideways-pictures.htm
try reading your image's exif here http://www.exifviewer.org/ , or http://regex.info/exif.cgi , or http://www.addictivetips.com/internet-tips/view-complete-exif-metadata-information-of-an...
When to add what indexes in a table in Rails
...uble index:
Concrete example:
If you have:
default_scope :order => 'photos.created_at DESC, photos.version DESC'
You should add:
add_index :photos, [:created_at, :version]
Note:
An index takes up extra space on the disk and makes it slower to create and update each record, because it has...
How Do I Use Factory Girl To Generate A Paperclip Attachment?
...factory :user do
avatar { fixture_file_upload(Rails.root.join('spec', 'photos', 'test.png'), 'image/png') }
end
end
In the above example, spec/photos/test.png needs to exist in your application's root directory before running your tests.
Note, that FactoryBot is a new name for FactoryGirl.
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Reload activity in Android
...ther things. For instance, I am accessing the phone's camera, and when the photo is taken, the screen returns to my activity to post it into a view. By using lifecycle methods to refresh, I get kicked out of the camera process, and my photo does not return to the activity, but rather I get the activ...
HTML entity for the middle dot
...so known as middle dot, as HTML entity
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Example
Home · Photos · About
You could also use the bullet point character, as HTML entity
•
Example
Home • Photos • About
share
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How to enable file sharing for my app?
I have an image editing app where users can apply effects to photos. How could I enable it so that users can see my app in iTunes in the File Sharing tab and then just drag+drop photos to the app?
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