react-native/React/Views/RCTSegmentedControl.m

56 lines
1.3 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTSegmentedControl.h"
#import "RCTConvert.h"
#import "RCTEventDispatcher.h"
#import "UIView+React.h"
@implementation RCTSegmentedControl
- (instancetype)initWithFrame:(CGRect)frame
{
if ((self = [super initWithFrame:frame])) {
_selectedIndex = self.selectedSegmentIndex;
[self addTarget:self action:@selector(didChange)
forControlEvents:UIControlEventValueChanged];
}
return self;
}
- (void)setValues:(NSArray<NSString *> *)values
{
_values = [values copy];
[self removeAllSegments];
for (NSString *value in values) {
[self insertSegmentWithTitle:value atIndex:self.numberOfSegments animated:NO];
}
super.selectedSegmentIndex = _selectedIndex;
}
- (void)setSelectedIndex:(NSInteger)selectedIndex
{
_selectedIndex = selectedIndex;
super.selectedSegmentIndex = selectedIndex;
}
- (void)didChange
{
_selectedIndex = self.selectedSegmentIndex;
if (_onChange) {
_onChange(@{
@"value": [self titleForSegmentAtIndex:_selectedIndex],
@"selectedSegmentIndex": @(_selectedIndex)
});
}
}
@end