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git-subtree-dir: submodules/AsyncDisplayKit git-subtree-mainline: d06f423e0ed3df1fed9bd10d79ee312a9179b632 git-subtree-split: 02bedc12816e251ad71777f9d2578329b6d2bef6
95 lines
3.0 KiB
Objective-C
95 lines
3.0 KiB
Objective-C
//
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// ViewController.m
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// Texture
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//
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// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
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// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
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// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
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//
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#import "ViewController.h"
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#import <AsyncDisplayKit/AsyncDisplayKit.h>
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@interface ViewController () <ASEditableTextNodeDelegate>
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{
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ASEditableTextNode *_textNode;
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// These elements are a test case for ASTextNode truncation.
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UILabel *_label;
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ASTextNode *_node;
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}
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@end
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@implementation ViewController
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- (instancetype)init
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{
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if (!(self = [super init]))
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return nil;
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// simple editable text node. here we use it synchronously, but it fully supports async layout & display
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_textNode = [[ASEditableTextNode alloc] init];
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_textNode.returnKeyType = UIReturnKeyDone;
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_textNode.backgroundColor = [[UIColor lightGrayColor] colorWithAlphaComponent:0.1f];
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// with placeholder text (displayed if the user hasn't entered text)
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NSDictionary *placeholderAttrs = @{ NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue-LightItalic" size:18.0f] };
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_textNode.attributedPlaceholderText = [[NSAttributedString alloc] initWithString:@"Tap to type!"
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attributes:placeholderAttrs];
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// and typing attributes (style for any text the user enters)
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_textNode.typingAttributes = @{ NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue-Light" size:18.0f] };
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// the usual delegate methods are available; see ASEditableTextNodeDelegate
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_textNode.delegate = self;
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// Do any additional setup after loading the view, typically from a nib.
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NSDictionary *attrs = @{ NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue" size:12.0f] };
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NSAttributedString *string = [[NSAttributedString alloc] initWithString:@"1\n2\n3\n4\n5" attributes:attrs];
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_label = [[UILabel alloc] init];
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_label.attributedText = string;
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_label.backgroundColor = [UIColor lightGrayColor];
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_label.numberOfLines = 3;
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_label.frame = CGRectMake(20, 400, 40, 100);
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_node = [[ASTextNode alloc] init];
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_node.maximumNumberOfLines = 3;
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_node.backgroundColor = [UIColor lightGrayColor];
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_node.attributedText = string;
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_node.frame = CGRectMake(70, 400, 40, 100);
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// [_node measure:CGSizeMake(40, 50)]; No longer needed now that https://github.com/facebook/AsyncDisplayKit/issues/1295 is fixed.
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return self;
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}
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- (void)viewDidLoad
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{
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[super viewDidLoad];
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[self.view addSubnode:_textNode];
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[self.view addSubnode:_node];
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[self.view addSubview:_label];
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[self.view addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tap:)]];
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}
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- (void)viewWillLayoutSubviews
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{
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// place the text node in the top half of the screen, with a bit of padding
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_textNode.frame = CGRectMake(0, 20, self.view.bounds.size.width, (self.view.bounds.size.height / 2) - 40);
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}
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- (void)tap:(UITapGestureRecognizer *)sender
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{
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// dismiss the keyboard when we tap outside the text field
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[_textNode resignFirstResponder];
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}
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@end
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