TouchInstinct
/
ISEmojiView
301
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add delete button

This commit is contained in:
isaced 2014-12-30 17:13:37 +08:00
parent 065dfb5954
commit 70fe2a76ff
3 changed files with 91 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Example/ISEmojiViewSample/ViewController.m
View File

@ -40,4 +40,11 @@
self.textView.text = [self.textView.text stringByAppendingString:emoji];
}
-(void)emojiView:(ISEmojiView *)emojiView didPressDeleteButton:(UIButton *)deletebutton{
if (self.textView.text.length > 0) {
NSRange lastRange = [self.textView.text rangeOfComposedCharacterSequenceAtIndex:self.textView.text.length-1];
self.textView.text = [self.textView.text substringToIndex:lastRange.location];
}
}
@end

5
ISEmojiView/ISEmojiView.h
View File

@ -19,5 +19,10 @@
@protocol ISEmojiViewDelegate <NSObject>
-(void)emojiView:(ISEmojiView *)emojiView didSelectEmoji:(NSString *)emoji;
-(void)emojiView:(ISEmojiView *)emojiView didPressDeleteButton:(UIButton *)deletebutton;
@end
@interface ISDeleteButton : UIButton
@end

99
ISEmojiView/ISEmojiView.m
View File

@ -31,8 +31,8 @@ static const CGFloat EmojiFontSize = 32;
self.emojis = [NSArray arrayWithContentsOfFile:plistPath];
//
NSInteger rowNum = (CGRectGetWidth(frame) / EmojiWidth);
NSInteger colNum = (CGRectGetHeight(frame) / EmojiHeight);
NSInteger rowNum = (CGRectGetHeight(frame) / EmojiHeight);
NSInteger colNum = (CGRectGetWidth(frame) / EmojiWidth);
NSInteger numOfPage = ceil((float)[self.emojis count] / (float)(rowNum * colNum));
// init scrollview
@ -51,9 +51,36 @@ static const CGFloat EmojiFontSize = 32;
NSInteger column = 0;
NSInteger page = 0;
for (int i = 0; i < [self.emojis count]; i++) {
NSInteger emojiPointer = 0;
for (int i = 0; i < [self.emojis count] + numOfPage - 1; i++) {
NSString *emoji = self.emojis[i];
// Pagination
if (i % (rowNum * colNum) == 0) {
page ++; // Increase the number of pages
row = 0; // the number of lines is 0
column = 0; // the number of columns is 0
}else if (i % colNum == 0) {
// NewLine
row += 1; // Increase the number of lines
column = 0; // The number of columns is 0
}
CGRect currentRect = CGRectMake(((page-1) * frame.size.width) + (column * EmojiWidth),
row * EmojiHeight,
EmojiWidth,
EmojiHeight);
if (row == (rowNum - 1) && column == (colNum - 1)) {
// last position of page, add delete button
ISDeleteButton *deleteButton = [ISDeleteButton buttonWithType:UIButtonTypeCustom];
[deleteButton addTarget:self action:@selector(deleteButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
deleteButton.frame = currentRect;
deleteButton.tintColor = [UIColor blackColor];
[self.scrollView addSubview:deleteButton];
}else{
NSString *emoji = self.emojis[emojiPointer++];
// init Emoji Button
UIButton *emojiButton = [UIButton buttonWithType:UIButtonTypeCustom];
@ -61,24 +88,11 @@ static const CGFloat EmojiFontSize = 32;
[emojiButton setTitle:emoji forState:UIControlStateNormal];
[emojiButton addTarget:self action:@selector(emojiButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
// Pagination
if (i % (rowNum * colNum) == 0) {
page ++; // Increase the number of pages
row = 0; // the number of lines is 0
column = 0; // the number of columns is 0
}else if (i % rowNum == 0) {
// NewLine
row += 1; // Increase the number of lines
column = 0; // The number of columns is 0
emojiButton.frame = currentRect;
[self.scrollView addSubview:emojiButton];
}
emojiButton.frame = CGRectMake(((page-1) * frame.size.width) + (column * EmojiWidth),
row * EmojiHeight,
EmojiWidth,
EmojiHeight);
column++;
[self.scrollView addSubview:emojiButton];
}
// add PageControl
@ -94,6 +108,8 @@ static const CGFloat EmojiFontSize = 32;
pageControlSize.height);
[self.pageControl addTarget:self action:@selector(pageControlTouched:) forControlEvents:UIControlEventValueChanged];
[self addSubview:self.pageControl];
}
return self;
}
@ -128,4 +144,49 @@ static const CGFloat EmojiFontSize = 32;
}
}
- (void)deleteButtonPressed:(UIButton *)button{
// Add a simple scale animation
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
animation.toValue = @0.9;
animation.duration = 0.1;
animation.autoreverses = YES;
[button.layer addAnimation:animation forKey:nil];
// Callback
if ([self.delegate respondsToSelector:@selector(emojiView:didPressDeleteButton:)]) {
[self.delegate emojiView:self didPressDeleteButton:button];
}
}
@end
@implementation ISDeleteButton
-(void)drawRect:(CGRect)rect{
// Rectangle Drawing
UIBezierPath* rectanglePath = UIBezierPath.bezierPath;
[rectanglePath moveToPoint: CGPointMake(5, 25.05)];
[rectanglePath addLineToPoint: CGPointMake(20.16, 36)];
[rectanglePath addLineToPoint: CGPointMake(45.5, 36)];
[rectanglePath addLineToPoint: CGPointMake(45.5, 13.5)];
[rectanglePath addLineToPoint: CGPointMake(20.16, 13.5)];
[rectanglePath addLineToPoint: CGPointMake(5, 25.05)];
[rectanglePath closePath];
[self.tintColor setStroke];
rectanglePath.lineWidth = 1;
[rectanglePath stroke];
// Bezier Drawing
UIBezierPath* bezierPath = UIBezierPath.bezierPath;
[bezierPath moveToPoint: CGPointMake(26.5, 20)];
[bezierPath addLineToPoint: CGPointMake(36.5, 29.5)];
[bezierPath moveToPoint: CGPointMake(36.5, 20)];
[bezierPath addLineToPoint: CGPointMake(26.5, 29.5)];
[self.tintColor setStroke];
bezierPath.lineWidth = 1;
[bezierPath stroke];
}
@end