Although I have a picker already for Arabic, Persian and Urdu, I have developed another that is specifically for inputting Urdu. One reason for this is to reduce the choice of characters so that the user is more likely to select the right character for Urdu (eg. heh goal rather than arabic heh). Another is to provide shortcuts for things like aspirated letters and some common combinations (like the word ‘allah’).
It includes characters used for Urdu in Unicode 5.0. Most of the characters in the Urdu standard UZT 1.01 are included.
The aspirated letters of the alphabet can be entered with a single click. Also, base characters with diacritics can be inserted into the text with a single click where NFC normalisation would produce a single precomposed character.
Letters of the alphabet are shown in alphabetic order at the top left, digits are in keypad order, and combining characters related to vowel sounds are shown along the bottom. The lower middle section contains useful but non-alphabetic characters and punctuation. To the right are various symbols. Hinting is implemented for visually similar glyphs.