完美实现自定义软键盘.doc

感谢alan转载的文章给的灵感。/bbs/read.php?tid-3999.html思路：1.用静态方法找到应用程序当前view(window)中的UIKeyboard的view2.在键盘的view上帖上自己的view，（精彩了，这个自己的view就是你自己键盘，任意发挥，什么类型键盘都可以做了）3.根据需要调整系统键盘的大小以满足你想要的尺寸4.给自己的键盘view上的button添加方法，实现功能主要代码：添加自身类为键盘事件的观察者 复制代码 [[NSNotificationCenter defaultCenter] addObserver:self ???????????????????????????????????????????? selector:@selector(keyboardWillShow:) ???????????????????????????????????????????????? name:UIKeyboardWillShowNotification ?????????????????????????????????????????????? object:nil]; 核心思路代码： 复制代码 - (void)keyboardWillShow:(NSNotification *)note {?? ????UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];//知识点 ????for(int i=0; i[tempWindow.subviews count]; i++) ????{ ????????keyboard = [tempWindow.subviews objectAtIndex:i]; ????????if([[keyboard description] hasPrefix:@UIKeyboard] == YES) ????????{ ????????????[keyboard setFrame:CGRectMake(0, 460, 320, 345)]; ????????????[self congfigKeypad]; ???????????? ????????????[keyboard addSubview:keyPadView1]; ???????????? ????????} ????} } 比如配置方法可以是这样： 复制代码 -(void)congfigKeypad { ?? SearBtn *one = [[SearBtn alloc] initWithFrame:CGRectMake(81, 3, kNumPadW, kNumPadH) index:1 ContextString:@1 type:kNumPadType]; ????[one setImage:[UIImage imageNamed:@1.png] forState:UIControlStateNormal]; ????[one addTarget:self action:@selector(buttonClickAtIndex:) forControlEvents:UIControlEventTouchUpInside]; ????????//......略 } 添加NSMutalbeString作为文本域字串的容器，点击button后append的button对应的字串。 复制代码 - (void)buttonClickAtIndex:(id)sender { ????SearBtn *btnItem = (SearBtn*)sender; ????NSString *str = btnItem-btnText; ????[s_text appendString:str]; ????[sBar setText:s_text]; } ;再实现一个deleteChar的方法作为退格键思路： 复制代码 if ([s_text length] 0) ????{ ????????NSRange rang; ????????rang.location = [s_text length] - 1; ????????rang.length = 1; ????????[s_text deleteCharactersInRange:rang]; ????} 现在点击各种文本域，应该就可以现实自己的键盘了。继续优化用textfield的代理方法控制键盘的字串类型，长度，和响应消失 [ 此帖被evangel在2009-12-17 22:3