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Perform Segue programmatically and pass parameters to the destination view
...t you are asking. In this case I am passing data from a selected cell in a table view to another view controller.
in the .h file of the trget view:
@property(weak, nonatomic) NSObject* dataModel;
in the .m file:
@synthesize dataModel;
dataModel can be string, int, or like in this case it's...
Can functions be passed as parameters?
... example of how to best use this idea! I have recreated it using an lookup table of structs that store info, including a pointer to the function you wish to execute. Perfect for this!
– James O'Toole
Oct 31 '16 at 5:16
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What are the aspect ratios for all Android phone and tablet devices?
...or a list of all screen aspect ratios for popular Android based Phones and Tablets.
5 Answers
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How do I put an 'if clause' in an SQL string?
...
You can use the multiple-table UPDATE syntax to effect an ANTI-JOIN between purchaseOrder and itemsOrdered:
UPDATE purchaseOrder p LEFT JOIN itemsOrdered i
ON p.purchaseOrder_ID = i.purchaseOrder_ID
AND i.status = 'PENDING'
SET p.purchaseO...
How to use UIScrollView in Storyboard
...to (320, 1000).
I think Apple should make this easier in storyboard, in a TableViewController you can just scroll offscreen in Storyboard (just add 20 cells, and you'll see you can simply scroll), this should be possible with a ScrollViewController too.
...
How do you discover model attributes in Rails?
...ructure:
ActiveRecord::Schema.define(version: 20130712162401) do
create_table "users", force: true do |t|
t.string "email", default: "", null: false
t.string "encrypted_password", default: "", null: false
t.string "reset_password_token"
t.datetime "reset...
@Basic(optional = false) vs @Column(nullable = false) in JPA
...on raised before SQL is sent
to the database otherwise when using
'updatable=false' 'optional'
violations would never be reported.
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how to calculate binary search complexity
...ogarithmicly. Think about this for a moment. If you had 128 entries in a table and had to search linearly for your value, it would probably take around 64 entries on average to find your value. That's n/2 or linear time. With a binary search, you eliminate 1/2 the possible entries each iteration...
How to pinch out in iOS simulator when map view is only a portion of the screen?
...his did not work in my situation as one of the gray circles hovered over a table view on the bottom left causing the rows to be selected.
– Christopher
Jul 25 '12 at 22:08
2
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How does Google's Page Speed lossless image compression work?
...bilities to the fullest, e.g. PNG8+a instead of PNG24+a, optimized Huffman tables in JPEG, etc.
Photoshop doesn't really try hard to do that when saving images for the web, so it's not surprising that any tool beats it.
See
ImageOptim (lossless) and
ImageAlpha (lossy) for smaller PNG files (hi...