customKeyboard.gif

一、CustomKeyboardView ：顯示的鍵盤view
二、keyModel：鍵盤model，定義鍵盤字母枚舉類型， 存儲鍵盤上btn顯示的數(shù)據(jù)源。
三、KeyboardModeHandler：為處理各種類型鍵盤數(shù)據(jù)源，即為MVVM中的ViewModel層。
四、KeyBoardCell：自定義鍵盤cell，定義鍵盤操作枚舉類型(輸入數(shù)字、輸入小數(shù)點、輸入運算符等)。
五、WaterFallLayout：鍵盤的瀑布流。

六、使用
UITextField 和 UITextView 添加自定義鍵盤

    CustomKeyboardView *keyBoardView = [[CustomKeyboardView alloc] initWithKeyboardType:sender.tag inputSource:_tf];
    keyBoardView.inputText = _tf.text;
     _tf.inputView = keyBoardView;
    keyBoardView.closeKeyboardBlock = ^{
        //TODO
        [_tf resignFirstResponder];
    };
    keyBoardView.confirmBlock = ^{
        //TODO
        [_tf resignFirstResponder];
    };

UISearchBar 添加自定義鍵盤

UITextField *searchTF = [_searchBar valueForKeyPath:@"_searchField"];
       CustomKeyboardView *keyboardView = [[CustomKeyboardView alloc] initWithKeyboardType:KeyBoardTypeNormal inputSource:searchTF];

    searchTF.inputView = keyboardView;
    keyboardView.closeKeyboardBlock = ^{
       //TODO
        [_searchBar resignFirstResponder];
forState:UIControlStateNormal];
    };
    keyboardView.confirmBlock = ^{
        //TODO
        [_searchBar resignFirstResponder];
    };

七、注意點：記得實現(xiàn)UITextFieldDelegate代理方法

- (BOOL)textField:(UITextField *)textField 
shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
    return YES;
}

鏈接：CustomKeyboardView

參考：http://www.itdecent.cn/p/b3e97fb70021