フォント ピッカーが正常に動作するようになりました。
欠けているのは、フォント サイズとスタイル (太字、斜体、下線付き) の PickerView の 2 つの余分なセクションだけです。
これらの値を変更する方法がわかりません。
これは私のピッカーのコードです:
#import "ViewController.h"
@interface ViewController ()
{
}
@end
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
fontNames = [NSMutableArray array];
for(NSString *familyName in [UIFont familyNames]) {
for(NSString *fontName in [UIFont fontNamesForFamilyName:familyName]) {
[fontNames addObject:fontName];
}
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)numberOfComponentsInPickerView:
(UIPickerView *)pickerView
{
return 1;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView
numberOfRowsInComponent:(NSInteger)component
{
return fontNames.count;
}
- (NSString *)pickerView:(UIPickerView *)pickerView
titleForRow:(NSInteger)row
forComponent:(NSInteger)component
{
return [fontNames objectAtIndex:row];
}
- (UIView *)pickerView:(UIPickerView *)pickerView
viewForRow:(NSInteger)row
forComponent:(NSInteger)component
reusingView:(UIView *)view {
UILabel *pickerLabel = (UILabel *)view;
CGRect frame = CGRectMake(0.0, 0.0, 80, 32);
pickerLabel = [[UILabel alloc] initWithFrame:frame];
pickerLabel.backgroundColor = [UIColor clearColor];
pickerLabel.textAlignment = NSTextAlignmentLeft;
pickerLabel.text = [NSString stringWithFormat:@"%@",[fontNames objectAtIndex:row]];
pickerLabel.font = [UIFont fontWithName:[fontNames objectAtIndex:row] size:15];
return pickerLabel;
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row
inComponent:(NSInteger)component
{
_fontLabel.text = [fontNames objectAtIndex:row];
_fontLabel.font = [UIFont fontWithName:[fontNames objectAtIndex:row] size:15];
}
@end