【代码笔记】iOS-Label随字自动变大

一，效果图。

二，工程图。

三， 代码。

RootViewController.h

#import <UIKit/UIKit.h>
//添加HPGrowingTextView头文件
#import "HPGrowingTextView.h"

@interface RootViewController : UIViewController
<HPGrowingTextViewDelegate>
{
    HPGrowingTextView *textView;
}

@end

RootViewController.m

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    textView = [[HPGrowingTextView alloc] initWithFrame:CGRectMake(10, 100, 240, 40)];
    textView.isScrollable = NO;
    textView.contentInset = UIEdgeInsetsMake(0, 5, 0, 5);
    textView.minNumberOfLines = 1;
    textView.maxNumberOfLines = 6;
    // you can also set the maximum height in points with maxHeight
    // textView.maxHeight = 200.0f;
    textView.returnKeyType = UIReturnKeyGo; //just as an example
    textView.font = [UIFont systemFontOfSize:15.0f];
    textView.delegate = self;
    textView.internalTextView.scrollIndicatorInsets = UIEdgeInsetsMake(5, 0, 5, 0);
    textView.backgroundColor = [UIColor greenColor];
    textView.placeholder = @"Type to see the textView grow!";
    [self.view addSubview:textView];

}