Android中TextView自动识别url且实现点击跳转

前言

在项目中要在展示展示的文字中，自动匹配url 并且点击实现跳转，看了很多第三方的感觉都很复杂。后来自己写了一个简单的。

实现代码如下

1、创建一个继承uitextview的cjtextview 。

import <uikit/uikit.h>

@interface cjtextview : uitextview
@end

import "cjtextview.h"

@interface cjtextview ()
@property (nonatomic, copy ) nsstring mytext;
@property (nonatomic, assign) nsrange urltange;
@property (nonatomic, copy ) nsstring url;
@end

@implementation cjtextview
-(instancetype)initwithframe:(cgrect)frame{
if (self = [super initwithframe:frame]) {
}
return self;
}
// 重写了text的set 方法
-(void)settext:(nsstring * )text{
self.mytext = text;
[self.textstorage setattributedstring:[[nsattributedstring alloc]initwithstring:text]];
nsrange range = nsmakerange(0, self.mytext.length);
[self.textstorage addattribute:nsfontattributename value:[uifont systemfontofsize:20] range:range];
在这个方法中可以改变网址的颜色字体大小等属性。
[self doing];

}
-(void)layoutsubviews{
[super layoutsubviews];
self.textcontainer.size = self.bounds.size;
}

-(void)touchesbegan:(nsset<uitouch *> )touches withevent:(uievent )event{
cgpoint point = [[touches anyobject] locationinview:self];
nsrange range =self.urltange;
self.selectedrange = range;
nsarray array = [self selectionrectsforrange:self.selectedtextrange];
for (uitextselectionrect obj in array) {
if (cgrectcontainspoint(obj.rect, point)) {
nslog(@"你点击了网址%@",_url);
}
}
}

-(void) doing {
nsdatadetector * datadetector = [nsdatadetector datadetectorwithtypes:nstextcheckingalltypes error:nil];
nsarray res= [datadetector matchesinstring:self.textstorage.string options:nsmatchingreportprogress range:nsmakerange(0, self.textstorage.string.length)];
for (nstextcheckingresultresult in res) {
self.urltange = result.range;
nsstring str = [self.textstorage.string substringwithrange:result.range];
self.url = str;
nsmutableattributedstring *att= [[nsmutableattributedstring alloc]initwithstring:str];
[att addattribute:nsforegroundcolorattributename value:[uicolor bluecolor] range:nsmakerange(0, str.length)];
[att addattribute:nsfontattributename value:[uifont systemfontofsize:20] range:nsmakerange(0, str.length)];
[self.textstorage replacecharactersinrange:result.range withattributedstring:att];
}
}
@end

2、在控制器中实现

include "cjtextview.h"

@interface viewcontroller ()
@end
@implementation viewcontroller

(void)viewdidload {
[super viewdidload];
cjtextview *label = [[cjtextview alloc]init];

关掉弹出键盘

label.editable = no;
label.text = @"123发送的股份大概放到放到地方多福多寿http://baidu.comuiiyiroiqiotioq" ;
label.backgroundcolor = [uicolor yellowcolor];
label.frame = cgrectmake(100, 100, 202, 200);;
[self.view addsubview: label];
}

就是这么简单的代码就实现了

总结

以上就是这篇文章的全部内容了，希望本文的内容对各位android开发者们能带来一定的帮助，如果有疑问大家可以留言交流，谢谢大家对的支持。