Io Programmo 147

In questo arti­colo ho trat­tato di NSTimer, NSDate e di come eseguire sem­plici suoni.

E’ inoltre pre­sente un arti­colo su Mono, frame­work che con­sente di eseguire .Net su piattaforme non microsoft.

iPhone SDK 3.x — UIWebView issue: copy:selector

Inside the -(BOOL)canPerformAction:(SEL)action withSender:(id)sender method

when hold­ing the mouse pointer in the sim­u­la­tor on a word of a web­page loaded on a uiwe­b­view this method is called prop­erly, but the copy: selec­tor isn’t ana­lyzed and not even called (but the text is nor­maly copied) , I’ve opened a ticket o Apple Bug Report.

This bug don’t allow to fully dis­able the con­tex­tual menu on uiwe­b­view, and the only solu­tion is to dis­able all using javascript on the  loaded page.

Windows 7 and coninuos rebot updates

These weeks Win­dows 7 finds a new update(s) quite every week and asks to reboot, nice fea­ture, this means a much secure os, but the con­tinue reboots is becom­ing really annoy­ing, i keep my pc turned on to avoid shutdown/reboot times and now it’s useless…

Mac Users: ntfs-3g may harm your ntfs drive

I dis­cov­ered that ntfs-3g (cur­rent ver­sion) , an appli­ca­tion that allows to write on ntfs par­ti­tions is really buggy, it cor­rupted some exter­nal ntfs usb dri­ves i own, and in win­dows they became unread­able (it asks to for­mat them!).

The only solu­tion to fix this issue was to remove these dri­vers, and use paragon ntfs. I man­aged also to repair those dri­ves using the disk util­ity appli­ca­tion after unin­stalling ntfs-3g, because before its fea­tures didn’t work.

Doubts about Adobe Flash CS5 and iPhone development.

I’m not very happy about this project, I believe it will bring much con­fu­sion and prob­lems than else.

• Per­for­mances: the pre-alpha ver­sion cre­ates exe­cutable of about 7MB for appli­ca­tions of about 3 sheets, i develop them, same func­tion­al­i­ties, on about 700KB. Action­script uses a vir­tual machine with garbage col­lec­tor, iPhone OS doesn’t, so who knows if the Actionscript->Source  Code con­ver­sion is the best avail­able, and devel­op­ers will be allowed to fix it?
• API sync: how long it will take to Adobe to release the update to be in sync with the offi­cial iPhone SDK? Weeks, months? And will be bug-proof? i don’t think so.
• Bugs: Apple fixes bugs not so quickly, how long it will take for Adobe to fix theirs?
• Project killed: if Adobe will drop this fea­ture what will hap­pen to the projects devel­oped in Action­script? You will have to learn Objective-C and redo the project from scratch.
• Debug: if the con­ver­sion made by Adobe will cre­ate leaks or crash how the devel­oper will be able to fix them if it cre­ate the final pack­age with­out any Objective-C source? Debug­ger? how will work?
• Com­piler: Adobe uses only LLVM, in XCode you can choose between GCC and LLVM.
• Fast-food pro­gram­mers: the power of Objective-C is his nature of being so close to C allow­ing to develop using object-oriented pro­gram­ming; a well trained devel­oper can use C to speed his applications/game: an Action­script devel­oper will never be allowed to go so deeply (at least for now).
• Black Box: all the con­ver­sions will be hid­den to the devel­oper: he has to trush in the Adobe engineers.
• Mul­ti­thread: AVM2 doesn’t sup­port to develop mul­ti­threaded appli­ca­tions, while Objective-C/C and the iPhone OS yes: did they allow to use this fea­ture or not?

When the first beta will be release we will see hun­dred of appli­ca­tions and games on the Apple Store devel­oped with this ver­sion: bugs, crashes, slow appli­ca­tions, and what else?

Design Pat­terns teach to decrease to the lower level the cou­pling, in this way the devel­oper is cou­pled to Adobe deci­sions and tim­ing: this is really the

I will test it but with­out any real inter­est, I want to have full con­trol on my application/game and to know how in the core my soft­ware works: I’m able to dec­tect and fix bugs in min­utes cause i only need to know the lan­guage. i’ll never t be forced to wait for Adobe to fix con­ver­sions bug hop­ing that they will be fixed in the “who knows when” fix-release.

Io Programmo: iPhone — Popolazione delle tabelle

In questo arti­colo viene spie­gato come popo­lare una tabella, inserendo le infor­mazioni all’interno delle celle.