通过正则表达式，为指定文本添加点击操作和定义样式。
packagecom.example.haozai.myapplication;
importandroid.graphics.Color;
importandroid.support.v7.app.AppCompatActivity;
importandroid.os.Bundle;
importandroid.text.SpannableString;
importandroid.text.Spanned;
importandroid.text.TextPaint;
importandroid.text.method.LinkMovementMethod;
importandroid.text.style.ClickableSpan;
importandroid.text.style.ForegroundColorSpan;
importandroid.view.View;
importandroid.widget.TextView;
importandroid.widget.Toast;
importjava.util.ArrayList;
importjava.util.List;
importjava.util.regex.Matcher;
importjava.util.regex.Pattern;
importorg.jsoup.Jsoup;
importorg.jsoup.nodes.Document;
importorg.jsoup.select.Elements;
public classMainActivityextendsAppCompatActivity {
@Override
protected voidonCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String text ="Hi~\n"+"\n"+
"我这是测试例子~\n"+"\n"+
"巴啦啦（新增）：\n"+"\n"
+"更多查看 藏宝箱。";
TextView tv= (TextView)findViewById(R.id.textview);
tv.setMovementMethod(LinkMovementMethod.getInstance());
tv.setText(getStyle(text));
}
privateSpannableString getStyle(finalString content){
String result="";
//是完全通配的意思，\s是指空白，包括空格、换行、tab缩进等所有的空白，而\S刚好相反
//这样一正一反下来，就表示所有的字符，完全的，一字不漏的。
String pattern="[\\s\\S]*?<\\/a>";
Pattern p=Pattern.compile(pattern);
Matcher m=p.matcher(content);
List htmlDatas=newArrayList<>();
intstart=0;
while(m.find()){
String group=m.group();
result+=content.substring(start, m.start());
Document document = Jsoup.parse(group);
Elements elements=document.select("a");
String text=elements.text();
String type=elements.attr("type");
String id=elements.attr("id");
String name=elements.attr("name");
String icon=elements.attr("icon");
String subType=elements.attr("sub_type");
String url=elements.attr("url");
HtmlData data=newHtmlData();
data.setType(type);
data.setId(id);
data.setName(name);
data.setIcon(icon);
data.setSubType(subType);
data.setUrl(url);
data.start=result.length();
result+=text;
data.end=result.length();
htmlDatas.add(data);
start=m.end();
}
result+=content.substring(start,content.length());
SpannableString msp=newSpannableString(result);
intsize=htmlDatas.size();
for(inti=0;i
finalHtmlData data=htmlDatas.get(i);
msp.setSpan(getSpan(data), data.start, data.end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
msp.setSpan(newForegroundColorSpan(Color.parseColor("#2e9fff")), data.start, data.end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}
returnmsp;
}
privateClickableSpan getSpan(finalHtmlData data){
ClickableSpan span=newClickableSpan() {
@Override
public voidupdateDrawState(TextPaint ds) {
super.updateDrawState(ds);
ds.setUnderlineText(true);
}
@Override
public voidonClick(View widget) {
Toast.makeText(MainActivity.this,"type :"+data.getType()+" name :"+data.getName(),Toast.LENGTH_SHORT).show();
}
};
returnspan;
}
public static classHtmlData{
privateStringtype;
privateStringsubType;
privateStringid;
privateStringname;
privateStringicon;
private intstart;
private intend;
privateStringurl;
publicString getType() {
returntype;
}
public voidsetType(String type) {
this.type= type;
}
publicString getSubType() {
returnsubType;
}
public voidsetSubType(String subType) {
this.subType= subType;
}
publicString getId() {
returnid;
}
public voidsetId(String id) {
this.id= id;
}
publicString getName() {
returnname;
}
public voidsetName(String name) {
this.name= name;
}
publicString getIcon() {
returnicon;
}
public voidsetIcon(String icon) {
this.icon= icon;
}
public intgetStart() {
returnstart;
}
public voidsetStart(intstart) {
this.start= start;
}
public intgetEnd() {
returnend;
}
public voidsetEnd(intend) {
this.end= end;
}
publicString getUrl() {
returnurl;
}
public voidsetUrl(String url) {
this.url= url;
}
}
}
