How to input emoji from a UITextField and show in a UILabel? - ios

ios5 can input emoji ,i receive the text with some emoji from a UITextField and show them on a UILabel,but the text in the Label are Garbage like "? ?".how can show the text correctly.

Note that iOS and Mac OS X Lion use different unicode code points to represent the same emoji character.
The iOS unicode values are documented here: http://pukupi.com/post/1964/ while the Mac OS X Lion ones are documented in the OS X Character viewer.
For example, a simple smiley face is  i.e. \xe415 on iOS but it is 😄 \x1f604 on Mac OS. You can verify this by looking at this page on both operating systems.

Related

How to render the erase-to-left character ⌫ like desktop in iOS?

The erase-to-left character (⌫) (U+232B) is rendered differently on MacOS and iOS:
Is it possible to render it like what's on MacOS in iOS app?
Particular glyphs are included in particular fonts. The "character" (i.e. the glyph) looks the same on iOS and macOS as long you use the same font. Here it is in iOS with the Arial Unicode font installed:

Is it possible to change the font size of the app name displayed under the app icon?

I've seen apps that have more characters than mine and displayed fully whereas mine starts to truncate with the "..." after its 10th char.
I know an app on my iPhone that has 14 characters, and they are all displayed without any "...". I noticed that app's app title's fonts are a little bit smaller and the char-spacing in between is much less compared to the other apps.
Unfortunately you can't. The actual size isn't measured by chars because every char has a different width.
Your app name probably has more "boldy" chars that resulting in less char count than the one you mentioned.
BTW
The OS is shrinking app names when it tries to fit it completely under the app icon, but this also has a limit of course.
The font they use for application name is not monospace (or fixed-width). Means, the length of the name depends on the characters: M & W take more space than I & T.
Yes, there is no way to choose the font. But you might come up with a workaround.
As an option you can replace a whitespace with a thinner one as explained here.
Choosing the app name is very difficult. Find a short name. You can also put a part of your app name directly in the app's icon.

Is there a way to generate high resolution PNGs of iOS emoji?

I have been able to find 160x160 pixel emoji PNGs from iOS (actually WhatsApp but they are roughly the same set). These only show up as 1x when I import them into XCode 7 though.
Is there a way using Photoshop / OS X or similar to create high-resolution (retina friendly even, if possible) Emoji for use in an iOS game utilizing SpriteKit to animate the emoji?
Thanks in advance.
The "Apple Color Emoji" font that's used to render emoji in Mac OS X and iOS uses PNG bitmaps for the glyphs. The 160x160 graphics you've found are the largest ones available in the font — sorry! If you want something larger, you'll need to draw it yourself.
A tool to extract the images is available at: https://github.com/tmm1/emoji-extractor
If they don't need to be the Apple version, you can always download the collection of emoji from Emoji One. They're available in PNG and SVG formats under a Creative Commons Attribution license.

Is the globe icon on keyboard a character or image?

I am building a keyboard extension for iOS 8 and wondering whether the globe icon is a character of some font or an image?
This is the character being used: http://fileformat.info/info/unicode/char/1f310/index.htm (Unicode charpoint 1f310)

Detect whether certain unicode characters will render properly

I am developing a BlackBerry application that displays Malayalam characters. But some devices do not support those characters. For example the 9550 I am testing with displays rectangles instead of the correct character. How can I know whether a device supports Malayalam character rendering?

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