| /* |
| Copyright 2016-present the Material Components for iOS authors. All Rights Reserved. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| #import <UIKit/UIKit.h> |
| |
| #import "MaterialTextFields.h" |
| |
| #import "supplemental/TextFieldPresentationStylesLegacyExampleSupplemental.h" |
| |
| @interface TextFieldPresentationStylesExample () |
| |
| // Be sure to keep your controllers in memory somewhere like a property: |
| @property(nonatomic, strong) MDCTextInputControllerLegacyDefault *textFieldControllerDefaultCharMax; |
| @property(nonatomic, strong) MDCTextInputControllerLegacyDefault *textFieldControllerFloating; |
| @property(nonatomic, strong) MDCTextInputControllerLegacyFullWidth *textFieldControllerFullWidth; |
| |
| @end |
| |
| @implementation TextFieldPresentationStylesExample |
| |
| - (void)viewDidLoad { |
| [super viewDidLoad]; |
| |
| self.view.backgroundColor = [UIColor colorWithWhite:0.97f alpha:1.0f]; |
| self.title = @"Material Text Fields"; |
| |
| [self setupExampleViews]; |
| |
| [self setupTextFields]; |
| } |
| |
| - (void)setupTextFields { |
| // Default with Character Count and Floating Placeholder Text Fields |
| |
| // First the text field is added to the view hierarchy |
| MDCTextField *textFieldDefaultCharMax = [[MDCTextField alloc] init]; |
| [self.scrollView addSubview:textFieldDefaultCharMax]; |
| textFieldDefaultCharMax.translatesAutoresizingMaskIntoConstraints = NO; |
| |
| int defaultMax = 25; |
| textFieldDefaultCharMax.delegate = self; |
| textFieldDefaultCharMax.clearButtonMode = UITextFieldViewModeAlways; |
| |
| // Second the controller is created to manage the text field |
| self.textFieldControllerDefaultCharMax = |
| [[MDCTextInputControllerLegacyDefault alloc] initWithTextInput:textFieldDefaultCharMax]; |
| self.textFieldControllerDefaultCharMax.characterCountMax = defaultMax; |
| [self.textFieldControllerDefaultCharMax mdc_setAdjustsFontForContentSizeCategory:YES]; |
| self.textFieldControllerDefaultCharMax.floatingEnabled = NO; |
| self.textFieldControllerDefaultCharMax.placeholderText = |
| [NSString stringWithFormat:@"Enter up to %d characters", defaultMax]; |
| |
| MDCTextField *textFieldFloating = [[MDCTextField alloc] init]; |
| [self.scrollView addSubview:textFieldFloating]; |
| textFieldFloating.translatesAutoresizingMaskIntoConstraints = NO; |
| |
| textFieldFloating.delegate = self; |
| textFieldFloating.clearButtonMode = UITextFieldViewModeUnlessEditing; |
| NSOperatingSystemVersion iOS10Version = {10, 0, 0}; |
| NSProcessInfo *processInfo = [NSProcessInfo processInfo]; |
| if ([processInfo isOperatingSystemAtLeastVersion:iOS10Version]) { |
| textFieldFloating.adjustsFontForContentSizeCategory = YES; |
| } else { |
| [textFieldFloating mdc_setAdjustsFontForContentSizeCategory:YES]; |
| } |
| |
| self.textFieldControllerFloating = |
| [[MDCTextInputControllerLegacyDefault alloc] initWithTextInput:textFieldFloating]; |
| self.textFieldControllerFloating.placeholderText = @"Floating Placeholder"; |
| |
| [self.textFieldControllerFloating mdc_setAdjustsFontForContentSizeCategory:YES]; |
| |
| [NSLayoutConstraint |
| activateConstraints:[NSLayoutConstraint |
| constraintsWithVisualFormat:@"V:[charMax]-[floating]" |
| options:NSLayoutFormatAlignAllLeading | |
| NSLayoutFormatAlignAllTrailing |
| metrics:nil |
| views:@{ |
| @"charMax" : textFieldDefaultCharMax, |
| @"floating" : textFieldFloating |
| }]]; |
| [NSLayoutConstraint constraintWithItem:textFieldDefaultCharMax |
| attribute:NSLayoutAttributeLeading |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.view |
| attribute:NSLayoutAttributeLeadingMargin |
| multiplier:1 |
| constant:0] |
| .active = YES; |
| [NSLayoutConstraint constraintWithItem:textFieldDefaultCharMax |
| attribute:NSLayoutAttributeTrailing |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.view |
| attribute:NSLayoutAttributeTrailingMargin |
| multiplier:1 |
| constant:0] |
| .active = YES; |
| [NSLayoutConstraint constraintWithItem:textFieldDefaultCharMax |
| attribute:NSLayoutAttributeTrailing |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.scrollView |
| attribute:NSLayoutAttributeTrailingMargin |
| multiplier:1 |
| constant:0] |
| .active = YES; |
| |
| // Full Width Text Field |
| MDCTextField *textFieldFullWidth = [[MDCTextField alloc] init]; |
| [self.scrollView addSubview:textFieldFullWidth]; |
| textFieldFullWidth.translatesAutoresizingMaskIntoConstraints = NO; |
| |
| textFieldFullWidth.delegate = self; |
| textFieldFullWidth.clearButtonMode = UITextFieldViewModeUnlessEditing; |
| textFieldFullWidth.backgroundColor = [UIColor whiteColor]; |
| |
| self.textFieldControllerFullWidth = |
| [[MDCTextInputControllerLegacyFullWidth alloc] initWithTextInput:textFieldFullWidth]; |
| self.textFieldControllerFullWidth.placeholderText = @"Full Width"; |
| |
| [self.textFieldControllerFullWidth mdc_setAdjustsFontForContentSizeCategory:YES]; |
| |
| [NSLayoutConstraint constraintWithItem:textFieldFullWidth |
| attribute:NSLayoutAttributeTop |
| relatedBy:NSLayoutRelationEqual |
| toItem:textFieldFloating |
| attribute:NSLayoutAttributeBottom |
| multiplier:1 |
| constant:1] |
| .active = YES; |
| [NSLayoutConstraint constraintWithItem:textFieldFullWidth |
| attribute:NSLayoutAttributeLeading |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.view |
| attribute:NSLayoutAttributeLeading |
| multiplier:1 |
| constant:0] |
| .active = YES; |
| [NSLayoutConstraint constraintWithItem:textFieldFullWidth |
| attribute:NSLayoutAttributeTrailing |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.view |
| attribute:NSLayoutAttributeTrailing |
| multiplier:1 |
| constant:0] |
| .active = YES; |
| |
| // Unstyled Text Field |
| MDCTextField *unstyledTextField = [[MDCTextField alloc] init]; |
| [self.scrollView addSubview:unstyledTextField]; |
| unstyledTextField.translatesAutoresizingMaskIntoConstraints = NO; |
| |
| unstyledTextField.placeholder = @"Text Field without Controller"; |
| unstyledTextField.delegate = self; |
| unstyledTextField.clearButtonMode = UITextFieldViewModeAlways; |
| |
| [NSLayoutConstraint constraintWithItem:unstyledTextField |
| attribute:NSLayoutAttributeTop |
| relatedBy:NSLayoutRelationEqual |
| toItem:textFieldFullWidth |
| attribute:NSLayoutAttributeBottom |
| multiplier:1 |
| constant:1] |
| .active = YES; |
| [NSLayoutConstraint constraintWithItem:unstyledTextField |
| attribute:NSLayoutAttributeLeading |
| relatedBy:NSLayoutRelationEqual |
| toItem:textFieldDefaultCharMax |
| attribute:NSLayoutAttributeLeading |
| multiplier:1 |
| constant:0] |
| .active = YES; |
| [NSLayoutConstraint constraintWithItem:unstyledTextField |
| attribute:NSLayoutAttributeTrailing |
| relatedBy:NSLayoutRelationEqual |
| toItem:textFieldDefaultCharMax |
| attribute:NSLayoutAttributeTrailing |
| multiplier:1 |
| constant:0] |
| .active = YES; |
| |
| #if defined(__IPHONE_11_0) && (__IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_11_0) |
| if (@available(iOS 11.0, *)) { |
| [NSLayoutConstraint constraintWithItem:textFieldDefaultCharMax |
| attribute:NSLayoutAttributeTop |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.scrollView.contentLayoutGuide |
| attribute:NSLayoutAttributeTop |
| multiplier:1 |
| constant:20] |
| .active = YES; |
| [NSLayoutConstraint constraintWithItem:unstyledTextField |
| attribute:NSLayoutAttributeBottom |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.scrollView.contentLayoutGuide |
| attribute:NSLayoutAttributeBottomMargin |
| multiplier:1 |
| constant:-20] |
| .active = YES; |
| |
| } else { |
| [NSLayoutConstraint constraintWithItem:textFieldDefaultCharMax |
| attribute:NSLayoutAttributeTop |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.scrollView |
| attribute:NSLayoutAttributeTop |
| multiplier:1 |
| constant:20] |
| .active = YES; |
| [NSLayoutConstraint constraintWithItem:unstyledTextField |
| attribute:NSLayoutAttributeBottom |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.scrollView |
| attribute:NSLayoutAttributeBottomMargin |
| multiplier:1 |
| constant:-20] |
| .active = YES; |
| } |
| #else |
| [NSLayoutConstraint constraintWithItem:textFieldDefaultCharMax |
| attribute:NSLayoutAttributeTop |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.scrollView |
| attribute:NSLayoutAttributeTop |
| multiplier:1 |
| constant:20] |
| .active = YES; |
| [NSLayoutConstraint constraintWithItem:unstyledTextField |
| attribute:NSLayoutAttributeBottom |
| relatedBy:NSLayoutRelationEqual |
| toItem:self.scrollView |
| attribute:NSLayoutAttributeBottomMargin |
| multiplier:1 |
| constant:-20] |
| .active = YES; |
| #endif |
| |
| // Flip comments from here down in this method for testing |
| // UITextField *appleField = [[UITextField alloc] initWithFrame:CGRectZero]; |
| // [self.scrollView addSubview:appleField]; |
| // appleField.translatesAutoresizingMaskIntoConstraints = NO; |
| // |
| // appleField.placeholder = @"UIKit Text Field"; |
| // appleField.delegate = self; |
| // appleField.clearButtonMode = UITextFieldViewModeWhileEditing; |
| // |
| // NSBundle *bundle = [NSBundle bundleForClass:[TextFieldPresentationStylesExample class]]; |
| // UIImage *image = |
| // [UIImage imageNamed:@"ic_search" inBundle:bundle compatibleWithTraitCollection:nil]; |
| // UIImageView *left = [[UIImageView alloc] initWithImage:image]; |
| // UIImageView *right = [[UIImageView alloc] initWithImage:image]; |
| // |
| // appleField.leftView = left; |
| // appleField.leftViewMode = UITextFieldViewModeAlways; |
| // appleField.rightView = right; |
| // appleField.rightViewMode = UITextFieldViewModeAlways; |
| // |
| // [NSLayoutConstraint constraintWithItem:appleField |
| // attribute:NSLayoutAttributeTop |
| // relatedBy:NSLayoutRelationEqual |
| // toItem:unstyledTextField |
| // attribute:NSLayoutAttributeBottom |
| // multiplier:1 |
| // constant:10] |
| // .active = YES; |
| // [NSLayoutConstraint constraintWithItem:appleField |
| // attribute:NSLayoutAttributeLeading |
| // relatedBy:NSLayoutRelationEqual |
| // toItem:textFieldDefaultCharMax |
| // attribute:NSLayoutAttributeLeading |
| // multiplier:1 |
| // constant:0] |
| // .active = YES; |
| // [NSLayoutConstraint constraintWithItem:appleField |
| // attribute:NSLayoutAttributeTrailing |
| // relatedBy:NSLayoutRelationEqual |
| // toItem:textFieldDefaultCharMax |
| // attribute:NSLayoutAttributeTrailing |
| // multiplier:1 |
| // constant:0] |
| // .active = YES; |
| } |
| |
| #pragma mark - UITextFieldDelegate |
| |
| // All the usual UITextFieldDelegate methods work with MDCTextField |
| - (BOOL)textField:(UITextField *)textField |
| shouldChangeCharactersInRange:(NSRange)range |
| replacementString:(NSString *)string { |
| return YES; |
| } |
| |
| @end |
