mirror of
https://github.com/material-components/material-components-ios.git
synced 2026-01-24 00:11:47 +08:00
ebac2a8eb7
In many cases this is the only thing being done in - (void)dealloc, so we can remove the whole thing. PiperOrigin-RevId: 307663440
416 lines
19 KiB
Objective-C
416 lines
19 KiB
Objective-C
// Copyright 2019-present the Material Components for iOS authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#import "MaterialTextFields.h"
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@interface TextFieldCustomFontExample : UIViewController <UITextFieldDelegate, UITextViewDelegate>
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@property(nonatomic) MDCTextInputControllerOutlined *systemFontController;
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@property(nonatomic) MDCTextInputControllerOutlined *systemFontDynamicController;
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@property(nonatomic) MDCTextInputControllerOutlined *customFontController;
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@property(nonatomic) MDCTextInputControllerOutlined *customFontDynamicController;
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@property(nonatomic) MDCTextInputControllerOutlinedTextArea *multilineController;
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@property(nonatomic) MDCTextInputControllerOutlinedTextArea *multilineDynamicController;
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@property(nonatomic) MDCTextInputControllerOutlinedTextArea *multilineCustomFontDynamicController;
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@property(nonatomic) UIFont *normalTextFont;
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@property(nonatomic) UIScrollView *scrollView;
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@end
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@implementation TextFieldCustomFontExample
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- (void)viewDidLoad {
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[super viewDidLoad];
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self.view.backgroundColor = [UIColor whiteColor];
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[self registerKeyboardNotifications];
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[self setupScrollView];
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// Create a System Font TextField.
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MDCTextField *systemFontTextField = [self setupSystemFontTextField];
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// Create a System Font Dynamic TextField.
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MDCTextField *systemFontDynamicTextField = [self setupSystemFontDynamicTextField];
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// Create a Custom Font TextField.
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MDCTextField *customFontTextField = [self setupCustomFontTextField];
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;
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// Create a Custom Font Dynamic TextField.
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MDCTextField *customFontDynamicTextField = [self setupCustomFontDynamicTextField];
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;
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// Create a System Multiline TextField.
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MDCMultilineTextField *multilineTextField = [self setupSystemMultilineTextField];
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// Create a System Multiline Dynamic TextField.
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MDCMultilineTextField *multilineDynamicTextField = [self setupSystemMultilineDynamicTextField];
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// Create a Custom Multiline Dyamic TextField.
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MDCMultilineTextField *multilineCustomDynamicTextField =
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[self setupCustomMultilineDynamicTextField];
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NSDictionary *views = @{
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@"t1" : systemFontTextField,
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@"t2" : systemFontDynamicTextField,
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@"t3" : customFontTextField,
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@"t4" : customFontDynamicTextField,
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@"t5" : multilineTextField,
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@"t6" : multilineDynamicTextField,
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@"t7" : multilineCustomDynamicTextField
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};
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NSMutableArray<NSLayoutConstraint *> *constraints = [NSMutableArray
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arrayWithArray:[NSLayoutConstraint
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constraintsWithVisualFormat:@"V:[t1]-[t2]-[t3]-[t4]-[t5]-[t6]-[t7]"
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options:NSLayoutFormatAlignAllLeading |
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NSLayoutFormatAlignAllTrailing
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metrics:nil
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views:views]];
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[constraints addObject:[NSLayoutConstraint constraintWithItem:systemFontTextField
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attribute:NSLayoutAttributeLeading
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relatedBy:NSLayoutRelationEqual
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toItem:self.view
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attribute:NSLayoutAttributeLeadingMargin
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multiplier:1
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constant:0]];
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[constraints addObject:[NSLayoutConstraint constraintWithItem:systemFontTextField
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attribute:NSLayoutAttributeTrailing
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relatedBy:NSLayoutRelationEqual
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toItem:self.view
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attribute:NSLayoutAttributeTrailingMargin
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multiplier:1
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constant:0]];
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if (@available(iOS 11.0, *)) {
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[NSLayoutConstraint activateConstraints:@[
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[NSLayoutConstraint constraintWithItem:systemFontTextField
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attribute:NSLayoutAttributeTop
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relatedBy:NSLayoutRelationEqual
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toItem:self.scrollView.contentLayoutGuide
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attribute:NSLayoutAttributeTop
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multiplier:1
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constant:20],
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[NSLayoutConstraint constraintWithItem:multilineCustomDynamicTextField
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attribute:NSLayoutAttributeBottom
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relatedBy:NSLayoutRelationEqual
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toItem:self.scrollView.contentLayoutGuide
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attribute:NSLayoutAttributeBottomMargin
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multiplier:1
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constant:-20]
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]];
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} else {
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[NSLayoutConstraint activateConstraints:@[
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[NSLayoutConstraint constraintWithItem:systemFontTextField
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attribute:NSLayoutAttributeTop
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relatedBy:NSLayoutRelationEqual
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toItem:self.scrollView
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attribute:NSLayoutAttributeTop
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multiplier:1
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constant:20],
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[NSLayoutConstraint constraintWithItem:multilineCustomDynamicTextField
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attribute:NSLayoutAttributeBottom
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relatedBy:NSLayoutRelationEqual
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toItem:self.scrollView
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attribute:NSLayoutAttributeBottomMargin
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multiplier:1
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constant:-20]
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]];
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}
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[NSLayoutConstraint activateConstraints:constraints];
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}
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- (void)setupScrollView {
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self.scrollView = [[UIScrollView alloc] initWithFrame:CGRectZero];
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self.scrollView.translatesAutoresizingMaskIntoConstraints = NO;
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[self.view addSubview:self.scrollView];
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id<UILayoutSupport> topGuide = self.topLayoutGuide;
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NSArray *constraints = [NSLayoutConstraint
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constraintsWithVisualFormat:@"V:|[topGuide]-[scrollView]|"
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options:0
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metrics:nil
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views:@{@"topGuide" : topGuide, @"scrollView" : self.scrollView}];
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[NSLayoutConstraint activateConstraints:constraints];
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constraints = [NSLayoutConstraint constraintsWithVisualFormat:@"H:|[scrollView]|"
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options:0
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metrics:nil
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views:@{@"scrollView" : self.scrollView}];
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[NSLayoutConstraint activateConstraints:constraints];
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UIEdgeInsets margins = UIEdgeInsetsMake(0, 16, 0, 16);
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self.scrollView.layoutMargins = margins;
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UITapGestureRecognizer *tapGestureRecognizer =
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[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapDidTouch:)];
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[self.scrollView addGestureRecognizer:tapGestureRecognizer];
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}
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- (MDCTextField *)setupSystemFontTextField {
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MDCTextField *systemFontTextField = [[MDCTextField alloc] init];
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self.normalTextFont = systemFontTextField.font;
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systemFontTextField.translatesAutoresizingMaskIntoConstraints = NO;
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[self.scrollView addSubview:systemFontTextField];
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systemFontTextField.delegate = self;
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systemFontTextField.clearButtonMode = UITextFieldViewModeUnlessEditing;
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systemFontTextField.backgroundColor = [UIColor whiteColor];
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self.systemFontController =
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[[MDCTextInputControllerOutlined alloc] initWithTextInput:systemFontTextField];
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self.systemFontController.placeholderText = @"System Font";
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self.systemFontController.mdc_adjustsFontForContentSizeCategory = NO;
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return systemFontTextField;
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}
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- (MDCTextField *)setupSystemFontDynamicTextField {
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MDCTextField *systemFontDynamicTextField = [[MDCTextField alloc] init];
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systemFontDynamicTextField.translatesAutoresizingMaskIntoConstraints = NO;
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[self.scrollView addSubview:systemFontDynamicTextField];
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systemFontDynamicTextField.delegate = self;
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systemFontDynamicTextField.clearButtonMode = UITextFieldViewModeUnlessEditing;
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systemFontDynamicTextField.backgroundColor = [UIColor whiteColor];
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self.systemFontDynamicController =
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[[MDCTextInputControllerOutlined alloc] initWithTextInput:systemFontDynamicTextField];
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self.systemFontDynamicController.placeholderText = @"System Font - Dynamic";
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self.systemFontDynamicController.mdc_adjustsFontForContentSizeCategory = YES;
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return systemFontDynamicTextField;
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}
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- (MDCTextField *)setupCustomFontTextField {
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MDCTextField *customFontTextField = [[MDCTextField alloc] init];
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customFontTextField.translatesAutoresizingMaskIntoConstraints = NO;
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[self.scrollView addSubview:customFontTextField];
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customFontTextField.delegate = self;
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customFontTextField.clearButtonMode = UITextFieldViewModeUnlessEditing;
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customFontTextField.backgroundColor = [UIColor whiteColor];
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self.customFontController =
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[[MDCTextInputControllerOutlined alloc] initWithTextInput:customFontTextField];
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self.customFontController.placeholderText = @"Custom Font";
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self.customFontController.mdc_adjustsFontForContentSizeCategory = NO;
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self.customFontController.leadingUnderlineLabelFont = [UIFont fontWithName:@"AmericanTypewriter"
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size:12];
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self.customFontController.trailingUnderlineLabelFont = [UIFont fontWithName:@"Chalkduster"
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size:12];
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self.customFontController.inlinePlaceholderFont = [UIFont fontWithName:@"AmericanTypewriter"
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size:12];
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self.customFontController.textInputFont = [UIFont fontWithName:@"Chalkduster" size:16];
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return customFontTextField;
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}
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- (MDCTextField *)setupCustomFontDynamicTextField {
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MDCTextField *customFontDynamicTextField = [[MDCTextField alloc] init];
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customFontDynamicTextField.translatesAutoresizingMaskIntoConstraints = NO;
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customFontDynamicTextField.delegate = self;
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customFontDynamicTextField.clearButtonMode = UITextFieldViewModeUnlessEditing;
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customFontDynamicTextField.backgroundColor = [UIColor whiteColor];
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self.customFontDynamicController =
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[[MDCTextInputControllerOutlined alloc] initWithTextInput:customFontDynamicTextField];
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self.customFontDynamicController.placeholderText = @"Custom Font - Dynamic";
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self.customFontDynamicController.helperText = @"Helper";
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self.customFontDynamicController.leadingUnderlineLabelFont = [UIFont fontWithName:@"Zapfino"
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size:12];
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self.customFontDynamicController.trailingUnderlineLabelFont = [UIFont fontWithName:@"Chalkduster"
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size:12];
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self.customFontDynamicController.inlinePlaceholderFont = [UIFont fontWithName:@"Zapfino" size:12];
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self.customFontDynamicController.textInputFont = [UIFont fontWithName:@"Zapfino" size:16];
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self.customFontDynamicController.mdc_adjustsFontForContentSizeCategory = YES;
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[self.scrollView addSubview:customFontDynamicTextField];
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return customFontDynamicTextField;
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}
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- (MDCMultilineTextField *)setupSystemMultilineTextField {
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MDCMultilineTextField *multilineTextField = [[MDCMultilineTextField alloc] init];
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multilineTextField.translatesAutoresizingMaskIntoConstraints = NO;
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[self.scrollView addSubview:multilineTextField];
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multilineTextField.textView.delegate = self;
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self.multilineController =
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[[MDCTextInputControllerOutlinedTextArea alloc] initWithTextInput:multilineTextField];
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self.multilineController.placeholderText = @"Multiline Text";
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self.multilineController.mdc_adjustsFontForContentSizeCategory = NO;
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return multilineTextField;
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}
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- (MDCMultilineTextField *)setupSystemMultilineDynamicTextField {
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MDCMultilineTextField *multilineDynamicTextField = [[MDCMultilineTextField alloc] init];
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multilineDynamicTextField.translatesAutoresizingMaskIntoConstraints = NO;
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[self.scrollView addSubview:multilineDynamicTextField];
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multilineDynamicTextField.textView.delegate = self;
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self.multilineDynamicController =
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[[MDCTextInputControllerOutlinedTextArea alloc] initWithTextInput:multilineDynamicTextField];
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self.multilineDynamicController.placeholderText = @"Multiline Dynamic Text";
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self.multilineDynamicController.mdc_adjustsFontForContentSizeCategory = YES;
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return multilineDynamicTextField;
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}
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- (MDCMultilineTextField *)setupCustomMultilineDynamicTextField {
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MDCMultilineTextField *multilineCustomDynamicTextField = [[MDCMultilineTextField alloc] init];
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multilineCustomDynamicTextField.translatesAutoresizingMaskIntoConstraints = NO;
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[self.scrollView addSubview:multilineCustomDynamicTextField];
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multilineCustomDynamicTextField.textView.delegate = self;
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self.multilineCustomFontDynamicController = [[MDCTextInputControllerOutlinedTextArea alloc]
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initWithTextInput:multilineCustomDynamicTextField];
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self.multilineCustomFontDynamicController.placeholderText = @"Multiline Custom Font Dynamic Text";
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self.multilineCustomFontDynamicController.leadingUnderlineLabelFont =
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[UIFont fontWithName:@"AmericanTypewriter" size:12];
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self.customFontDynamicController.trailingUnderlineLabelFont = [UIFont fontWithName:@"Chalkduster"
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size:12];
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self.multilineCustomFontDynamicController.inlinePlaceholderFont = [UIFont fontWithName:@"Zapfino"
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size:12];
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self.multilineCustomFontDynamicController.textInputFont =
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[UIFont fontWithName:@"AmericanTypewriter" size:16];
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self.multilineCustomFontDynamicController.mdc_adjustsFontForContentSizeCategory = YES;
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return multilineCustomDynamicTextField;
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}
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#pragma mark - UITextFieldDelegate
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- (BOOL)textFieldShouldReturn:(UITextField *)textField {
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[textField resignFirstResponder];
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return NO;
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}
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- (BOOL)textField:(UITextField *)textField
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shouldChangeCharactersInRange:(NSRange)range
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replacementString:(NSString *)string {
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NSString *finishedString = [textField.text stringByReplacingCharactersInRange:range
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withString:string];
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if (textField == (UITextField *)self.systemFontController.textInput) {
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if ([finishedString rangeOfCharacterFromSet:[NSCharacterSet decimalDigitCharacterSet]].length &&
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![self.systemFontController.errorText isEqualToString:@"Error: You cannot enter numbers"]) {
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// The entered text contains numbers and we have not set an error
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[self.systemFontController setErrorText:@"You cannot enter numbers"
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errorAccessibilityValue:nil];
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// Since we are doing manual layout, we need to react to the expansion of the input that will
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// come from setting an error.
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[self.view setNeedsLayout];
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} else if (self.systemFontController.errorText != nil) {
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// There should be no error but error text is being shown.
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[self.systemFontController setErrorText:nil errorAccessibilityValue:nil];
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// Since we are doing manual layout, we need to react to the contraction of the input that
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// will come from setting an error.
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[self.view setNeedsLayout];
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}
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}
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if (textField == (UITextField *)self.customFontController.textInput) {
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if ([finishedString rangeOfCharacterFromSet:[[NSCharacterSet letterCharacterSet] invertedSet]]
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.length > 0) {
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[self.customFontController setErrorText:@"Error: City can only contain letters"
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errorAccessibilityValue:nil];
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} else {
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[self.customFontController setErrorText:nil errorAccessibilityValue:nil];
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}
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}
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return YES;
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}
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#pragma mark - UITextViewDelegate
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- (void)textViewDidChange:(UITextView *)textView {
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NSLog(@"%@", textView.text);
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}
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#pragma mark - Gesture Handling
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- (void)tapDidTouch:(UIGestureRecognizer *)sender {
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[self.view endEditing:YES];
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}
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#pragma mark - Keyboard Handling
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- (void)registerKeyboardNotifications {
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NSNotificationCenter *defaultCenter = [NSNotificationCenter defaultCenter];
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[defaultCenter addObserver:self
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selector:@selector(keyboardWillShow:)
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name:UIKeyboardWillShowNotification
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object:nil];
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[defaultCenter addObserver:self
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selector:@selector(keyboardWillShow:)
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name:UIKeyboardWillChangeFrameNotification
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object:nil];
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[defaultCenter addObserver:self
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selector:@selector(keyboardWillHide:)
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name:UIKeyboardWillHideNotification
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object:nil];
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}
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- (void)keyboardWillShow:(NSNotification *)notif {
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CGRect keyboardFrame = [notif.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
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self.scrollView.contentInset = UIEdgeInsetsMake(0, 0, CGRectGetHeight(keyboardFrame), 0);
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}
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- (void)keyboardWillHide:(NSNotification *)notif {
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self.scrollView.contentInset = UIEdgeInsetsZero;
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}
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#pragma mark - Phone Number Validation
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- (BOOL)isValidPhoneNumber:(NSString *)inputString partially:(BOOL)isPartialCheck {
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// In real life there would be much more robust validation that takes locale into account, checks
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// against invalid phone numbers (like those that begin with 0), and perhaps even auto-inserts the
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// hyphens so the user doesn't have to.
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if (inputString.length == 0) {
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return YES;
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}
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NSCharacterSet *characterSet = [NSCharacterSet characterSetWithCharactersInString:@"0123456789-"];
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characterSet = [characterSet invertedSet];
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BOOL isValid = ![inputString rangeOfCharacterFromSet:characterSet].length;
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if (!isPartialCheck) {
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isValid = isValid && inputString.length == 12;
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} else {
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isValid = isValid && inputString.length <= 12;
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}
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return isValid;
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}
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@end
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@implementation TextFieldCustomFontExample (CatalogByConvention)
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+ (NSDictionary *)catalogMetadata {
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return @{
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@"breadcrumbs" : @[ @"Text Field", @"Custom Fonts" ],
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@"primaryDemo" : @NO,
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@"presentable" : @NO,
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};
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}
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@end
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