UIToolbar被隱藏

我創建了UIToolbar control.which作爲setInputAccessoryView添加到一個UITextField Control.Which工作正常。當點擊UITextField.Up時，tollbar會出現uikeyboard。UIToolbar被隱藏

當我放置一個按鈕，當點擊它時，我想隱藏鍵盤，只想顯示工具欄。

這不會發生，工具欄正在隱藏。

請讓我知道，代碼中的問題/原因是什麼。

謝謝你的時間。

- (void)viewDidLoad { 

[super viewDidLoad]; 

     // 
     myToolbar = [[UIToolbar alloc] init]; 
     [myToolbar sizeToFit]; 
     myToolbar.frame = CGRectMake(0,198, 320, 35); 
     myToolbar.barStyle = UIBarStyleBlackTranslucent; 
     [self.view addSubview:myToolbar]; 


     UIImage *image = [UIImage imageNamed:@"orangebuttonsmall.png"]; 
     UIButton *aButton = [UIButton buttonWithType:UIButtonTypeCustom]; 
     aButton.frame = CGRectMake(0, 100, image.size.width, 25);  
     aButton.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter; 
     [aButton setTitle:@"Tap" forState:UIControlStateNormal]; 
     [aButton setBackgroundImage: image forState:UIControlStateNormal]; 
     [aButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; 
     aButton.titleLabel.font = [UIFont boldSystemFontOfSize:10]; 
     [aButton addTarget:self action:@selector(aCenterBtnClicked:) forControlEvents:UIControlEventTouchUpInside]; 
     [self.view addSubview:aButton]; 


     myToField = [[UITextField alloc] init]; 
     myToField.frame = CGRectMake(0, 0, 320, 48); 
     myToField.textColor = [UIColor blackColor]; //text color 
     myToField.font = [UIFont systemFontOfSize:17.0]; //font size 
     myToField.placeholder = @"To:"; //place holder 
     myToField.backgroundColor = [UIColor whiteColor]; //background color 
     myToField.autocorrectionType = UITextAutocorrectionTypeNo; // no auto correction support 
     myToField.keyboardType = UIKeyboardTypePhonePad; // type of the keyboard 
     myToField.returnKeyType = UIReturnKeyDone; // type of the return key 
     myToField.clearButtonMode = UITextFieldViewModeWhileEditing; 
     [myToField setInputAccessoryView:myToolbar]; 
     myToField.textAlignment = UITextAlignmentLeft; 
     [myToField setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter]; 

     myToField.rightViewMode=UITextFieldViewModeAlways; 
     // has a clear 'x' button to the right 
     myToField.delegate = self; 
     [myToField becomeFirstResponder]; 
     [self.view addSubview:myToField]; 

    } 

    -(void)aCenterBtnClicked:(id)sender{ 

     [myToField resignFirstResponder]; 

     myToolbar.frame = CGRectMake(0,198, 320, 35); 
     myToolbar.barStyle = UIBarStyleBlackTranslucent; 
     [self.view addSubview:myToolbar]; 
    }

來源

2012-05-04 user198725878