mirror of
https://gitlab.linphone.org/BC/public/linphone-iphone.git
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Update HPGrowingTextView for iOS7 compatibility.
From https://github.com/HansPinckaers/GrowingTextView
This commit is contained in:
Guillaume BIENKOWSKI
parent
dd5e1d7245
commit
217350708c
4 changed files with 181 additions and 29 deletions
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@ -27,6 +27,12 @@
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#import <UIKit/UIKit.h>
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#if __IPHONE_OS_VERSION_MAX_ALLOWED < 60000
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// UITextAlignment is deprecated in iOS 6.0+, use NSTextAlignment instead.
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// Reference: https://developer.apple.com/library/ios/documentation/uikit/reference/NSString_UIKit_Additions/Reference/Reference.html
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#define NSTextAlignment UITextAlignment
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#endif
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@class HPGrowingTextView;
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@class HPTextViewInternal;
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@ -60,10 +66,11 @@
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int minNumberOfLines;
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BOOL animateHeightChange;
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NSTimeInterval animationDuration;
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//uitextview properties
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NSObject <HPGrowingTextViewDelegate> *__unsafe_unretained delegate;
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NSTextAlignment textAlignment;
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NSTextAlignment textAlignment;
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NSRange selectedRange;
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BOOL editable;
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UIDataDetectorTypes dataDetectorTypes;
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@ -75,7 +82,12 @@
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//real class properties
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@property int maxNumberOfLines;
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@property int minNumberOfLines;
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@property (nonatomic) int maxHeight;
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@property (nonatomic) int minHeight;
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@property BOOL animateHeightChange;
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@property NSTimeInterval animationDuration;
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@property (nonatomic, strong) NSString *placeholder;
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@property (nonatomic, strong) UIColor *placeholderColor;
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@property (nonatomic, strong) UITextView *internalTextView;
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@ -84,12 +96,13 @@
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@property(nonatomic,strong) NSString *text;
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@property(nonatomic,strong) UIFont *font;
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@property(nonatomic,strong) UIColor *textColor;
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@property(nonatomic) NSTextAlignment textAlignment; // default is UITextAlignmentLeft
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@property(nonatomic) NSTextAlignment textAlignment; // default is NSTextAlignmentLeft
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@property(nonatomic) NSRange selectedRange; // only ranges of length 0 are supported
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@property(nonatomic,getter=isEditable) BOOL editable;
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@property(nonatomic) UIDataDetectorTypes dataDetectorTypes __OSX_AVAILABLE_STARTING(__MAC_NA, __IPHONE_3_0);
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@property (nonatomic) UIReturnKeyType returnKeyType;
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@property (assign) UIEdgeInsets contentInset;
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@property (nonatomic) BOOL isScrollable;
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@property(nonatomic) BOOL enablesReturnKeyAutomatically;
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//uitextview methods
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@ -101,4 +114,7 @@
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- (BOOL)hasText;
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- (void)scrollRangeToVisible:(NSRange)range;
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// call to force a height change (e.g. after you change max/min lines)
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- (void)refreshHeight;
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@end
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@ -37,15 +37,19 @@
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@implementation HPGrowingTextView
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@synthesize internalTextView;
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@synthesize delegate;
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@synthesize maxHeight;
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@synthesize minHeight;
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@synthesize font;
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@synthesize textColor;
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@synthesize textAlignment;
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@synthesize selectedRange;
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@synthesize editable;
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@synthesize dataDetectorTypes;
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@synthesize dataDetectorTypes;
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@synthesize animateHeightChange;
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@synthesize animationDuration;
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@synthesize returnKeyType;
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@dynamic placeholder;
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@dynamic placeholderColor;
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// having initwithcoder allows us to use HPGrowingTextView in a Nib. -- aob, 9/2011
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- (id)initWithCoder:(NSCoder *)aDecoder
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@ -82,10 +86,14 @@
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minNumberOfLines = 1;
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animateHeightChange = YES;
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animationDuration = 0.1f;
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internalTextView.text = @"";
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[self setMaxNumberOfLines:3];
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[self setPlaceholderColor:[UIColor lightGrayColor]];
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internalTextView.displayPlaceHolder = YES;
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}
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-(CGSize)sizeThatFits:(CGSize)size
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@ -101,10 +109,9 @@
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[super layoutSubviews];
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CGRect r = self.bounds;
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r.origin.y = contentInset.top;
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r.origin.x = contentInset.left;
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r.origin.y = 0;
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r.origin.x = contentInset.left;
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r.size.width -= contentInset.left + contentInset.right;
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r.size.height -= contentInset.top + contentInset.bottom;
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internalTextView.frame = r;
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}
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@ -114,10 +121,9 @@
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contentInset = inset;
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CGRect r = self.frame;
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r.origin.y = contentInset.top;
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r.origin.x = contentInset.left;
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r.size.width -= contentInset.left + contentInset.right;
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r.size.height -= contentInset.top + contentInset.bottom;
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r.origin.y = inset.top - inset.bottom;
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r.origin.x = inset.left;
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r.size.width -= inset.left + inset.right;
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internalTextView.frame = r;
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@ -132,6 +138,8 @@
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-(void)setMaxNumberOfLines:(int)n
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{
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if(n == 0 && maxHeight > 0) return; // the user specified a maxHeight themselves.
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// Use internalTextView for height calculations, thanks to Gwynne <http://blog.darkrainfall.org/>
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NSString *saveText = internalTextView.text, *newText = @"-";
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@ -143,13 +151,13 @@
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internalTextView.text = newText;
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maxHeight = internalTextView.contentSize.height;
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maxHeight = [self measureHeight];
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internalTextView.text = saveText;
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internalTextView.hidden = NO;
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internalTextView.delegate = self;
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//[self sizeToFit];
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[self sizeToFit];
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maxNumberOfLines = n;
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}
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@ -159,8 +167,16 @@
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return maxNumberOfLines;
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}
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- (void)setMaxHeight:(int)height
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{
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maxHeight = height;
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maxNumberOfLines = 0;
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}
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-(void)setMinNumberOfLines:(int)m
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{
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if(m == 0 && minHeight > 0) return; // the user specified a minHeight themselves.
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// Use internalTextView for height calculations, thanks to Gwynne <http://blog.darkrainfall.org/>
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NSString *saveText = internalTextView.text, *newText = @"-";
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@ -172,13 +188,13 @@
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internalTextView.text = newText;
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minHeight = internalTextView.contentSize.height;
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minHeight = [self measureHeight];
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internalTextView.text = saveText;
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internalTextView.hidden = NO;
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internalTextView.delegate = self;
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//[self sizeToFit];
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[self sizeToFit];
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minNumberOfLines = m;
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}
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@ -188,13 +204,43 @@
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return minNumberOfLines;
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}
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- (void)setMinHeight:(int)height
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{
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minHeight = height;
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minNumberOfLines = 0;
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}
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- (NSString *)placeholder
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{
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return internalTextView.placeholder;
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}
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- (void)setPlaceholder:(NSString *)placeholder
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{
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[internalTextView setPlaceholder:placeholder];
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}
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- (UIColor *)placeholderColor
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{
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return internalTextView.placeholderColor;
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}
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- (void)setPlaceholderColor:(UIColor *)placeholderColor
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{
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[internalTextView setPlaceholderColor:placeholderColor];
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}
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- (void)textViewDidChange:(UITextView *)textView
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{
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{
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[self refreshHeight];
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}
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- (void)refreshHeight
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{
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//size of content, so we can set the frame of self
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NSInteger newSizeH = internalTextView.contentSize.height;
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NSInteger newSizeH = [self measureHeight];
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if(newSizeH < minHeight || !internalTextView.hasText) newSizeH = minHeight; //not smalles than minHeight
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if(newSizeH > maxHeight) newSizeH = maxHeight; // not taller than maxHeight
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if (internalTextView.frame.size.height > maxHeight) newSizeH = maxHeight; // not taller than maxHeight
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if (internalTextView.frame.size.height != newSizeH)
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{
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@ -212,7 +258,7 @@
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if ([UIView resolveClassMethod:@selector(animateWithDuration:animations:)]) {
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#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 40000
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[UIView animateWithDuration:0.1f
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[UIView animateWithDuration:animationDuration
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delay:0
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options:(UIViewAnimationOptionAllowUserInteraction|
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UIViewAnimationOptionBeginFromCurrentState)
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@ -227,7 +273,7 @@
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#endif
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} else {
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[UIView beginAnimations:@"" context:nil];
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[UIView setAnimationDuration:0.1f];
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[UIView setAnimationDuration:animationDuration];
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[UIView setAnimationDelegate:self];
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[UIView setAnimationDidStopSelector:@selector(growDidStop)];
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[UIView setAnimationBeginsFromCurrentState:YES];
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@ -244,7 +290,6 @@
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}
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}
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}
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// if our new height is greater than the maxHeight
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// sets not set the height or move things
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@ -260,15 +305,77 @@
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internalTextView.scrollEnabled = NO;
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}
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// scroll to caret (needed on iOS7)
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if ([self respondsToSelector:@selector(snapshotViewAfterScreenUpdates:)])
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{
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CGRect r = [internalTextView caretRectForPosition:internalTextView.selectedTextRange.end];
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CGFloat caretY = MAX(r.origin.y - internalTextView.frame.size.height + r.size.height + 8, 0);
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if(internalTextView.contentOffset.y < caretY && r.origin.y != INFINITY)
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internalTextView.contentOffset = CGPointMake(0, MIN(caretY, internalTextView.contentSize.height));
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}
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}
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// Display (or not) the placeholder string
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BOOL wasDisplayingPlaceholder = internalTextView.displayPlaceHolder;
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internalTextView.displayPlaceHolder = self.internalTextView.text.length == 0;
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if (wasDisplayingPlaceholder != internalTextView.displayPlaceHolder) {
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[internalTextView setNeedsDisplay];
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}
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// Tell the delegate that the text view changed
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if ([delegate respondsToSelector:@selector(growingTextViewDidChange:)]) {
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if ([delegate respondsToSelector:@selector(growingTextViewDidChange:)]) {
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[delegate growingTextViewDidChange:self];
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}
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}
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// Code from apple developer forum - @Steve Krulewitz, @Mark Marszal, @Eric Silverberg
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- (CGFloat)measureHeight
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{
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#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000
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if ([self respondsToSelector:@selector(snapshotViewAfterScreenUpdates:)])
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{
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CGRect frame = internalTextView.bounds;
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CGSize fudgeFactor;
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// The padding added around the text on iOS6 and iOS7 is different.
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fudgeFactor = CGSizeMake(10.0, 16.0);
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frame.size.height -= fudgeFactor.height;
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frame.size.width -= fudgeFactor.width;
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NSMutableAttributedString* textToMeasure;
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if(internalTextView.attributedText && internalTextView.attributedText.length > 0){
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textToMeasure = [[NSMutableAttributedString alloc] initWithAttributedString:internalTextView.attributedText];
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}
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else{
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textToMeasure = [[NSMutableAttributedString alloc] initWithString:internalTextView.text];
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[textToMeasure addAttribute:NSFontAttributeName value:internalTextView.font range:NSMakeRange(0, textToMeasure.length)];
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}
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if ([textToMeasure.string hasSuffix:@"\n"])
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{
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[textToMeasure appendAttributedString:[[NSAttributedString alloc] initWithString:@"-" attributes:@{NSFontAttributeName: internalTextView.font}]];
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}
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// NSAttributedString class method: boundingRectWithSize:options:context is
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// available only on ios7.0 sdk.
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CGRect size = [textToMeasure boundingRectWithSize:CGSizeMake(CGRectGetWidth(frame), MAXFLOAT)
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options:NSStringDrawingUsesLineFragmentOrigin
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context:nil];
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return CGRectGetHeight(size) + fudgeFactor.height;
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}
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else
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{
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return self.internalTextView.contentSize.height;
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}
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#else
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return self.internalTextView.contentSize.height;
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#endif
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}
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-(void)resizeTextView:(NSInteger)newSizeH
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{
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if ([delegate respondsToSelector:@selector(growingTextView:willChangeHeight:)]) {
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@ -283,15 +390,14 @@
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internalTextViewFrame.origin.x = contentInset.left;
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internalTextViewFrame.size.width = internalTextView.contentSize.width;
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internalTextView.frame = internalTextViewFrame;
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if(!CGRectEqualToRect(internalTextView.frame, internalTextViewFrame)) internalTextView.frame = internalTextViewFrame;
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}
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-(void)growDidStop
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- (void)growDidStop
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{
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if ([delegate respondsToSelector:@selector(growingTextView:didChangeHeight:)]) {
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[delegate growingTextView:self didChangeHeight:self.frame.size.height];
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}
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}
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-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
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@ -401,6 +507,18 @@
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///////////////////////////////////////////////////////////////////////////////////////////////////
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- (void)setIsScrollable:(BOOL)isScrollable
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{
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internalTextView.scrollEnabled = isScrollable;
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}
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- (BOOL)isScrollable
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{
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return internalTextView.scrollEnabled;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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-(void)setEditable:(BOOL)beditable
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{
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internalTextView.editable = beditable;
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@ -28,7 +28,10 @@
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#import <UIKit/UIKit.h>
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@interface HPTextViewInternal : UITextView {
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}
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@interface HPTextViewInternal : UITextView
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@property (nonatomic, strong) NSString *placeholder;
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@property (nonatomic, strong) UIColor *placeholderColor;
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@property (nonatomic) BOOL displayPlaceHolder;
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@end
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@ -30,6 +30,10 @@
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@implementation HPTextViewInternal
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@synthesize placeholder;
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@synthesize placeholderColor;
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@synthesize displayPlaceHolder;
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-(void)setText:(NSString *)text
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{
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BOOL originalValue = self.scrollEnabled;
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[self setScrollEnabled:originalValue];
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}
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- (void)setScrollable:(BOOL)isScrollable
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{
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[super setScrollEnabled:isScrollable];
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}
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-(void)setContentOffset:(CGPoint)s
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{
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if(self.tracking || self.decelerating){
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@ -89,7 +98,13 @@
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[super setContentSize:contentSize];
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}
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- (void)drawRect:(CGRect)rect
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{
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[super drawRect:rect];
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if (displayPlaceHolder && placeholder && placeholderColor) {
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[placeholderColor set];
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[placeholder drawInRect:CGRectMake(8.0f, 8.0f, self.frame.size.width - 16.0f, self.frame.size.height - 16.0f) withFont:self.font];
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}
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}
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@end
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