- (IBAction)changeText:(id)sender {


NSMutableParagraphStyle*paragraphStyle = [[NSMutableParagraphStylealloc]init];

paragraphStyle.alignment=NSTextAlignmentCenter;

paragraphStyle.paragraphSpacing=12.0f;

NSMutableDictionary*attributes = [NSMutableDictionarydictionary];

attributes[NSParagraphStyleAttributeName] = paragraphStyle;

attributes[NSFontAttributeName] = [UIFontfontWithName:@"Futura"size:20.0f];

attributes[NSForegroundColorAttributeName] = [UIColorcolorWithRed:1.0fgreen:0blue:0alpha:1.0f];

NSAttributedString*attriStr = [[NSAttributedStringalloc]initWithString:self.mytextView.textattributes:attributes];

self.mytextView.attributedText= attriStr;

}