ios 4.2 - number pad keyboard not show return key in iphone -

i new iphone technology. i've saved problem in iphone application, when use textfield keyboard type number pad keyboard doesn't show return/done button.

how can hide number pad keyboard after entering number in textfield? have solutions that. please provide help.

you can in way:

@property (nonatomic, strong) uitextfield *textfield;  - (void)viewdidload {     [super viewdidload];      self.textfield = [[uitextfield alloc] initwithframe:cgrectmake(0, 0, 100, 40)];     uibarbuttonitem *doneitem = [[uibarbuttonitem alloc] initwithbarbuttonsystemitem:uibarbuttonsystemitemdone target:self action:@selector(donebuttondidpressed:)];     uibarbuttonitem *flexableitem = [[uibarbuttonitem alloc] initwithbarbuttonsystemitem:uibarbuttonsystemitemflexiblespace target:nil action:null];     uitoolbar *toolbar = [[uitoolbar alloc] initwithframe:cgrectmake(0, 0, [[uiscreen mainscreen] bounds].size.width, [[self class] toobarheight])];     [toolbar setitems:[nsarray arraywithobjects:flexableitem,doneitem, nil]];     self.textfield.inputaccessoryview = toolbar; }  - (void)donebuttondidpressed:(id)sender {     [self.textfield resignfirstresponder]; }  + (cgfloat)toolbarheight {     // method handle case height of toolbar may change in future ios.     return 44.f; }