iOS Label随字自动变大效果

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];
 
 
 
 
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。