UITextField UITextFieldViewModeUnlessEditing example in Objective C (iOS).

UITextField UITextFieldViewModeUnlessEditing

UITextFieldViewMode
Defines the times at which overlay views appear in a text field.

typedef enum {
UITextFieldViewModeNever,
UITextFieldViewModeWhileEditing,
UITextFieldViewModeUnlessEditing,
UITextFieldViewModeAlways
} UITextFieldViewMode;

Constants
UITextFieldViewModeNever
The overlay view never appears.
UITextFieldViewModeWhileEditing
The overlay view is displayed only while text is being edited in the text field.
UITextFieldViewModeUnlessEditing
The overlay view is displayed only when text is not being edited.
UITextFieldViewModeAlways
The overlay view is always displayed.

UITextField UITextFieldViewModeUnlessEditing example.

CGFloat myWidth = 26.0f;
CGFloat myHeight = 30.0f;
UIButton *myButton = [[UIButton alloc] initWithFrame:CGRectMake(0.0f, 0.0f, myWidth, myHeight)]
[myButton setImage:[UIImage imageNamed:@"myButtonImage"] forState:UIControlStateNormal];
[myButton setImage:[UIImage imageNamed:@"myButtonImage"] forState:UIControlStateHighlighted];

[myButton addTarget:self action:@selector(doClear:) forControlEvents:UIControlEventTouchUpInside];

myTextField.rightView = myButton;
myTextField.rightViewMode = UITextFieldViewModeUnlessEditing;

Example of [UITextField UITextFieldViewModeUnlessEditing].

searchField= [[UITextField alloc] initWithFrame:CGRectMake(0,0,150,31)];
searchField.delegate = self;
searchField.autoresizingMask = UIViewAutoresizingFlexibleWidth;
searchField.textColor = [UIColor colorWithRed:102.0/255 green:102.0/255 blue:102.0/255 alpha:1.0];
searchField.textAlignment = UITextAlignmentLeft;
searchField.font = [UIFont fontWithName:@"Helvetica" size:15];
searchField.autocorrectionType = UITextAutocorrectionTypeNo;
searchField.contentVerticalAlignment =UIControlContentVerticalAlignmentCenter;
searchField.clearsOnBeginEditing = NO;
searchField.autocapitalizationType = UITextAutocapitalizationTypeNone;
searchField.autocorrectionType = UITextAutocorrectionTypeNo;
searchField.keyboardType = UIKeyboardTypeURL;
searchField.returnKeyType = UIReturnKeySearch;       
searchField.clearButtonMode = UITextFieldViewModeWhileEditing;
searchField.rightViewMode = UITextFieldViewModeUnlessEditing;
searchField.layer.cornerRadius = 17;
searchField.placeholder=@"Google Search";
searchField.borderStyle = UITextBorderStyleRoundedRect;//To change borders to rounded
searchField.layer.borderWidth = 1.0f; //To hide the square corners
searchField.layer.borderColor = [[UIColor grayColor] CGColor]; //assigning the default border color
UIBarButtonItem *searchFieldItem = [[UIBarButtonItem alloc] initWithCustomView:searchField];

UITextField UITextFieldViewModeUnlessEditing example.

UIButton *refreshButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, width, height)];
[refreshButton setImage:[UIImage imageNamed:@"refresh.png"] forState:UIControlStateNormal];
[refreshButton setImage:[UIImage imageNamed:@"refresh.png"] forState:UIControlStateHighlighted];
refreshButton.imageEdgeInsets = UIEdgeInsetsMake(0, -16, 0, 0);
[refreshButton addTarget:self action:@selector(refresh) forControlEvents:UIControlEventTouchUpInside];
addressBar.rightView = refreshButton;
addressBar.rightViewMode = UITextFieldViewModeUnlessEditing;

End of UITextField UITextFieldViewModeUnlessEditing example article.