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[attributedlabel] Add support for inline images.
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| // | ||
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| #import "BasicInstantiationAttributedLabelViewController.h" | ||
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| #import "NimbusAttributedLabel.h" | ||
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| // | ||
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examples/catalog/Catalog/ImagesAttributedLabelViewController.h
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| // | ||
| // Copyright 2011-2012 Jeff Verkoeyen | ||
| // | ||
| // 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. | ||
| // | ||
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| #import <UIKit/UIKit.h> | ||
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| @interface ImagesAttributedLabelViewController : UIViewController | ||
| @end |
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examples/catalog/Catalog/ImagesAttributedLabelViewController.m
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| // | ||
| // Copyright 2011-2012 Jeff Verkoeyen | ||
| // | ||
| // 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. | ||
| // | ||
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| #import "ImagesAttributedLabelViewController.h" | ||
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| #import "NimbusAttributedLabel.h" | ||
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| // | ||
| // What's going on in this file: | ||
| // | ||
| // This controller shows how to add inline images to NIAttributedLabel. | ||
| // | ||
| // You will find the following Nimbus features used: | ||
| // | ||
| // [attributedlabel] | ||
| // NIAttributedLabel | ||
| // | ||
| // This controller requires the following frameworks: | ||
| // | ||
| // Foundation.framework | ||
| // UIKit.framework | ||
| // CoreText.framework | ||
| // QuartzCore.framework | ||
| // | ||
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| @interface ImagesAttributedLabelViewController () | ||
| @end | ||
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| @implementation ImagesAttributedLabelViewController | ||
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| - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { | ||
| self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; | ||
| if (self) { | ||
| self.title = @"Images"; | ||
| } | ||
| return self; | ||
| } | ||
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| - (void)viewDidLoad { | ||
| [super viewDidLoad]; | ||
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| NIAttributedLabel* label = [[NIAttributedLabel alloc] initWithFrame:CGRectZero]; | ||
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| // When we assign the text we do not include any markup for the images. | ||
| label.text = @"This is Nimbus:He's a red panda.\nThis is a star:"; | ||
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| label.autoresizingMask = UIViewAutoresizingFlexibleDimensions; | ||
| label.lineBreakMode = UILineBreakModeWordWrap; | ||
| label.font = [UIFont systemFontOfSize:20]; | ||
| label.textColor = [UIColor blackColor]; | ||
| label.frame = CGRectInset(self.view.bounds, 20, 20); | ||
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| // We want to insert an image directly after the string "Nimbus:" in the above string, so find its | ||
| // range and then use NSMaxRange to get the last index. | ||
| NSRange range = [label.text rangeOfString:@"Nimbus:"]; | ||
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| // When we insert an image we have the option to provide margins and vertical text alignment. | ||
| // | ||
| // Experiment: | ||
| // Try changing the values of the margins and seeing the effects it has. | ||
| // | ||
| [label insertImage:[UIImage imageNamed:@"Icon"] | ||
| atIndex:NSMaxRange(range) | ||
| margins:UIEdgeInsetsMake(5, 5, 5, 5)]; | ||
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| // We're going to add an image to the end of the string, so we pass the length of the string. | ||
| // Why not length - 1? Because the image gets inserted at the given index, so if we passed | ||
| // length - 1 the image would be immediately before the last character. | ||
| // | ||
| // Experiment: | ||
| // Try changing the index to other arbitrary values and seeing how it affects the way the text is | ||
| // drawn. | ||
| // | ||
| [label insertImage:[UIImage imageNamed:@"star"] | ||
| atIndex:label.text.length | ||
| margins:UIEdgeInsetsMake(5, 5, 5, 5)]; | ||
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| [self.view addSubview:label]; | ||
| } | ||
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| - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { | ||
| return NIIsSupportedOrientation(interfaceOrientation); | ||
| } | ||
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| @end |
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