mirror of
https://github.com/material-components/material-components-ios.git
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ebac2a8eb7
In many cases this is the only thing being done in - (void)dealloc, so we can remove the whole thing. PiperOrigin-RevId: 307663440
276 lines
13 KiB
Objective-C
276 lines
13 KiB
Objective-C
// Copyright 2017-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 MultilineTextFieldLegacyExample : UIViewController <UITextViewDelegate>
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// Be sure to keep your controllers in memory somewhere like a property:
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@property(nonatomic, strong) MDCTextInputControllerLegacyDefault *textFieldControllerDefaultCharMax;
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@property(nonatomic, strong) MDCTextInputControllerLegacyDefault *textFieldControllerFloating;
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@property(nonatomic, strong) MDCTextInputControllerLegacyFullWidth *textFieldControllerFullWidth;
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@property(nonatomic, strong) UIScrollView *scrollView;
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@end
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@implementation MultilineTextFieldLegacyExample
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- (void)viewDidLoad {
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[super viewDidLoad];
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self.view.backgroundColor = [UIColor colorWithWhite:(CGFloat)0.97 alpha:1];
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self.title = @"Legacy Multi-line Styles";
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self.scrollView = [[UIScrollView alloc] initWithFrame:CGRectZero];
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[self.view addSubview:self.scrollView];
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self.scrollView.translatesAutoresizingMaskIntoConstraints = NO;
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UIEdgeInsets margins = UIEdgeInsetsMake(0, 16, 0, 16);
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self.scrollView.layoutMargins = margins;
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[NSLayoutConstraint
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activateConstraints:[NSLayoutConstraint
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constraintsWithVisualFormat:@"V:|[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
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activateConstraints:[NSLayoutConstraint
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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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MDCMultilineTextField *multilineTextFieldUnstyled = [[MDCMultilineTextField alloc] init];
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[self.scrollView addSubview:multilineTextFieldUnstyled];
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multilineTextFieldUnstyled.translatesAutoresizingMaskIntoConstraints = NO;
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multilineTextFieldUnstyled.placeholder = @"No Controller (unstyled)";
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multilineTextFieldUnstyled.textView.delegate = self;
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multilineTextFieldUnstyled.leadingUnderlineLabel.text = @"Leading";
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multilineTextFieldUnstyled.trailingUnderlineLabel.text = @"Trailing";
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MDCMultilineTextField *multilineTextFieldUnstyledArea = [[MDCMultilineTextField alloc] init];
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[self.scrollView addSubview:multilineTextFieldUnstyledArea];
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multilineTextFieldUnstyledArea.translatesAutoresizingMaskIntoConstraints = NO;
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multilineTextFieldUnstyledArea.placeholder = @"No Controller (unstyled) minimum of 3 lines";
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multilineTextFieldUnstyledArea.textView.delegate = self;
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multilineTextFieldUnstyledArea.leadingUnderlineLabel.text = @"Leading";
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multilineTextFieldUnstyledArea.trailingUnderlineLabel.text = @"Trailing";
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multilineTextFieldUnstyledArea.minimumLines = 3;
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multilineTextFieldUnstyledArea.expandsOnOverflow = NO;
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MDCMultilineTextField *multilineTextFieldFloating = [[MDCMultilineTextField alloc] init];
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[self.scrollView addSubview:multilineTextFieldFloating];
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multilineTextFieldFloating.translatesAutoresizingMaskIntoConstraints = NO;
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multilineTextFieldFloating.textView.delegate = self;
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self.textFieldControllerFloating =
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[[MDCTextInputControllerLegacyDefault alloc] initWithTextInput:multilineTextFieldFloating];
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self.textFieldControllerFloating.placeholderText = @"Floating Controller";
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MDCMultilineTextField *multilineTextFieldCharMaxDefault = [[MDCMultilineTextField alloc] init];
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[self.scrollView addSubview:multilineTextFieldCharMaxDefault];
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multilineTextFieldCharMaxDefault.translatesAutoresizingMaskIntoConstraints = NO;
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multilineTextFieldCharMaxDefault.textView.delegate = self;
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self.textFieldControllerDefaultCharMax = [[MDCTextInputControllerLegacyDefault alloc]
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initWithTextInput:multilineTextFieldCharMaxDefault];
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self.textFieldControllerDefaultCharMax.characterCountMax = 30;
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self.textFieldControllerDefaultCharMax.floatingEnabled = NO;
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self.textFieldControllerDefaultCharMax.placeholderText = @"Inline Placeholder Only";
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MDCMultilineTextField *multilineTextFieldCharMaxFullWidth = [[MDCMultilineTextField alloc] init];
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[self.scrollView addSubview:multilineTextFieldCharMaxFullWidth];
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multilineTextFieldCharMaxFullWidth.translatesAutoresizingMaskIntoConstraints = NO;
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multilineTextFieldCharMaxFullWidth.textView.delegate = self;
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self.textFieldControllerFullWidth = [[MDCTextInputControllerLegacyFullWidth alloc]
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initWithTextInput:multilineTextFieldCharMaxFullWidth];
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self.textFieldControllerFullWidth.characterCountMax = 140;
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self.textFieldControllerFullWidth.placeholderText = @"Full Width Controller";
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id<UILayoutSupport> topGuide = self.topLayoutGuide;
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[NSLayoutConstraint
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activateConstraints:[NSLayoutConstraint
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constraintsWithVisualFormat:
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@"V:[topGuide]-[unstyled]-[area]-[floating]-[charMax]-[fullWidth]"
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options:0
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metrics:nil
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views:@{
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@"topGuide" : topGuide,
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@"unstyled" : multilineTextFieldUnstyled,
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@"area" : multilineTextFieldUnstyledArea,
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@"charMax" : multilineTextFieldCharMaxDefault,
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@"floating" : multilineTextFieldFloating,
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@"fullWidth" :
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multilineTextFieldCharMaxFullWidth
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}]];
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[NSLayoutConstraint
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activateConstraints:[NSLayoutConstraint
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constraintsWithVisualFormat:@"H:|-[unstyled]-|"
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options:0
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metrics:nil
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views:@{
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@"unstyled" : multilineTextFieldUnstyled
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}]];
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[NSLayoutConstraint
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activateConstraints:[NSLayoutConstraint
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constraintsWithVisualFormat:@"H:|-[area]-|"
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options:0
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metrics:nil
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views:@{
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@"area" : multilineTextFieldUnstyledArea
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}]];
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[NSLayoutConstraint
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activateConstraints:[NSLayoutConstraint
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constraintsWithVisualFormat:@"H:|-[floating]-|"
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options:0
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metrics:nil
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views:@{
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@"floating" : multilineTextFieldFloating
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}]];
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[NSLayoutConstraint
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activateConstraints:[NSLayoutConstraint
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constraintsWithVisualFormat:@"H:|-[charMax]-|"
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options:0
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metrics:nil
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views:@{
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@"charMax" : multilineTextFieldCharMaxDefault
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}]];
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if (@available(iOS 11.0, *)) {
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[NSLayoutConstraint activateConstraints:@[
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[NSLayoutConstraint constraintWithItem:multilineTextFieldUnstyled
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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:multilineTextFieldCharMaxFullWidth
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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:multilineTextFieldUnstyled
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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:multilineTextFieldCharMaxFullWidth
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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 constraintWithItem:multilineTextFieldCharMaxFullWidth
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attribute:NSLayoutAttributeLeading
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relatedBy:NSLayoutRelationEqual
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toItem:self.view
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attribute:NSLayoutAttributeLeading
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multiplier:1
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constant:0]
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.active = YES;
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[NSLayoutConstraint constraintWithItem:multilineTextFieldCharMaxFullWidth
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attribute:NSLayoutAttributeTrailing
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relatedBy:NSLayoutRelationEqual
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toItem:self.view
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attribute:NSLayoutAttributeTrailing
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multiplier:1
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constant:0]
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.active = YES;
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[NSLayoutConstraint
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activateConstraints:[NSLayoutConstraint
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constraintsWithVisualFormat:@"H:|[fullWidth]|"
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options:0
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metrics:nil
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views:@{
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@"fullWidth" :
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multilineTextFieldCharMaxFullWidth
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}]];
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UITapGestureRecognizer *tapRecognizer =
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[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapDidTouch)];
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[self.view addGestureRecognizer:tapRecognizer];
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[self registerKeyboardNotifications];
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}
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- (void)tapDidTouch {
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[self.view endEditing:YES];
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}
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#pragma mark - CatalogByConvention
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+ (NSDictionary *)catalogMetadata {
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return @{
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@"breadcrumbs" : @[ @"Text Field", @"[Legacy] Multi-line" ],
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@"primaryDemo" : @NO,
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@"presentable" : @NO,
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};
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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:UIKeyboardDidChangeFrameNotification
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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 *)notification {
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CGRect frame = [[notification.userInfo valueForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
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self.scrollView.contentInset = UIEdgeInsetsMake(0, 0, CGRectGetHeight(frame), 0);
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}
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- (void)keyboardWillHide:(NSNotification *)notification {
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self.scrollView.contentInset = UIEdgeInsetsMake(0, 0, 0, 0);
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}
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@end
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@implementation MultilineTextFieldLegacyExample (UITextViewDelegate)
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- (void)textViewDidChange:(UITextView *)textView {
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NSLog(@"%@", textView.text);
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}
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@end
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