linphone-ios/Classes/Utils/TPKeyboardAvoiding/TPKeyboardAvoidingScrollView.m

89 lines
2.5 KiB
Objective-C
Executable file

//
// TPKeyboardAvoidingScrollView.m
//
// Created by Michael Tyson on 30/09/2013.
// Copyright 2013 A Tasty Pixel. All rights reserved.
//
#import "TPKeyboardAvoidingScrollView.h"
@interface TPKeyboardAvoidingScrollView () <UITextFieldDelegate, UITextViewDelegate>
@end
@implementation TPKeyboardAvoidingScrollView
#pragma mark - Setup/Teardown
- (void)setup {
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(TPKeyboardAvoiding_keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(TPKeyboardAvoiding_keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
}
-(id)initWithFrame:(CGRect)frame {
if ( !(self = [super initWithFrame:frame]) ) return nil;
[self setup];
return self;
}
-(void)awakeFromNib {
[self setup];
}
-(void)dealloc {
[[NSNotificationCenter defaultCenter] removeObserver:self];
#if !__has_feature(objc_arc)
[super dealloc];
#endif
}
-(void)setFrame:(CGRect)frame {
[super setFrame:frame];
[self TPKeyboardAvoiding_updateContentInset];
}
-(void)setContentSize:(CGSize)contentSize {
[super setContentSize:contentSize];
[self TPKeyboardAvoiding_updateFromContentSizeChange];
}
- (void)contentSizeToFit {
self.contentSize = [self TPKeyboardAvoiding_calculatedContentSizeFromSubviewFrames];
}
- (BOOL)focusNextTextField {
return [self TPKeyboardAvoiding_focusNextTextField];
}
- (void)scrollToActiveTextField {
return [self TPKeyboardAvoiding_scrollToActiveTextField];
}
#pragma mark - Responders, events
- (void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
[[self TPKeyboardAvoiding_findFirstResponderBeneathView:self] resignFirstResponder];
[super touchesEnded:touches withEvent:event];
}
-(BOOL)textFieldShouldReturn:(UITextField *)textField {
if ( ![self focusNextTextField] ) {
[textField resignFirstResponder];
}
return YES;
}
-(void)textFieldDidBeginEditing:(UITextField *)textField {
[self scrollToActiveTextField];
}
-(void)textViewDidBeginEditing:(UITextView *)textView {
[self scrollToActiveTextField];
}
-(void)layoutSubviews {
[super layoutSubviews];
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) object:self];
[self performSelector:@selector(TPKeyboardAvoiding_assignTextDelegateForViewsBeneathView:) withObject:self afterDelay:0.1];
}
@end