如何使用自动布局动态更改字体大小？

Question

我想使用每个设备的代码动态更改每个设备的字体大小。我知道可以使用大小类来做到这一点/但我不想使用大小类。

Answer 1

@property int fontSize;

+(NSString *)getDeviceModel
{
    //Device Model
    NSString *phoneModel = [[UIDevice currentDevice] model];
    return phoneModel;
}

- (void)setLabelFontSize {
    NSString *hardware = [self getDeviceModel];
    if ([hardware isEqualToString:@"iPhone5,1"]) {
        self.fontSize = 10.0
    }else if ([hardware isEqualToString:@"iPhone6,1"]) {
        self.fontSize = 14.0
    }
    [_timeLabel setFont:[UIFont systemFontOfSize:self.fontSize]];
}

//I only list two device models, you can get other models through the Internet.

Answer 2

为uilabel提供宽高比约束，它将自动处理字体大小。

Answer 3

You may change font size base on size classes . Below link will help you regarding this. Font size using size class . Thanks