UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"本次升級(jí)說(shuō)明" message:info preferredStyle:(UIAlertControllerStyleAlert)];
NSMutableParagraphStyle *paraStyle = [[NSMutableParagraphStyle alloc] init];
paraStyle.alignment = NSTextAlignmentLeft;
NSMutableAttributedString *atrStr = [[NSMutableAttributedString alloc] initWithString:info attributes:@{NSParagraphStyleAttributeName:paraStyle,NSFontAttributeName:[UIFont systemFontOfSize:13.0]}];
[alert setValue:atrStr forKey:@"attributedMessage"];
UIAlertAction *action = [UIAlertAction actionWithTitle:@"確定" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction * _Nonnull action) {
//
}];
[alert addAction:action];
[self presentViewController:alert animated:YES completion:nil];
左對(duì)齊demo.png
