一、效果图。

二、工程图。

三、代码。

rootviewcontroller.h

? 1 2 3 4 5 6 7 8 9 10 11 #import <uikit/uikit.h> //添加hpgrowingtextview头文件 #import "hpgrowingtextview.h" @interface rootviewcontroller : uiviewcontroller <hpgrowingtextviewdelegate> { hpgrowingtextview *textview; } @end

rootviewcontroller.m

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 - (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服务器之家。