我有文本“Android是一个软件堆栈”。在这个文本中,我想设置“堆栈”文本为可点击。所以,如果你点击它,它将重定向到一个新的活动(不在浏览器中)。

我试过了,但没有找到解决办法。


当前回答

您可以使用示例代码。您希望了解关于ClickableSpan的详细信息。请检查这份文件

  SpannableString myString = new SpannableString("This is example");
            
            ClickableSpan clickableSpan = new ClickableSpan() {
                    @Override
                    public void onClick(View textView) {
                        ToastUtil.show(getContext(),"Clicked Smile ");
                    }
                };
        
        //For Click
         myString.setSpan(clickableSpan,startIndex,lastIndex,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        
        //For UnderLine
         myString.setSpan(new UnderlineSpan(),startIndex,lastIndex,0);
        
        //For Bold
        myString.setSpan(new StyleSpan(Typeface.BOLD),startIndex,lastIndex,0);
        
        //Finally you can set to textView. 
        
        TextView textView = (TextView) findViewById(R.id.txtSpan);
        textView.setText(myString);
        textView.setMovementMethod(LinkMovementMethod.getInstance());

其他回答

我编写了一个例子来解决你的问题在Kotlin。

这是准则:

    val completeText = getString(R.string.terms_description)
    val textToFind = getString(R.string.show_terms)
    val spannableString: Spannable = SpannableString(completeText)
    val startFocus = completeText.indexOf(textToFind)
    val endFocus = startFocus + textToFind.length

    spannableString.setSpan(object: ClickableSpan() {
        override fun onClick(p0: View) {
            showMessage()
        }
    }, startFocus, endFocus, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
    show_terms.text = spannableString
    show_terms.movementMethod = LinkMovementMethod.getInstance();
    show_terms.highlightColor = Color.TRANSPARENT;

这是XML

    <CheckBox
            android:id="@+id/check_agree_terms"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"/>

    <TextView
            android:id="@+id/show_terms"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColorLink="@color/colorPrimary"
            android:layout_toEndOf="@id/check_agree_terms"/>

这就是它的样子

在这里输入图像描述

这是一个Kotlin方法,使TextView的部分可点击:

private fun makeTextLink(textView: TextView, str: String, underlined: Boolean, color: Int?, action: (() -> Unit)? = null) {
    val spannableString = SpannableString(textView.text)
    val textColor = color ?: textView.currentTextColor
    val clickableSpan = object : ClickableSpan() {
        override fun onClick(textView: View) {
            action?.invoke()
        }
        override fun updateDrawState(drawState: TextPaint) {
            super.updateDrawState(drawState)
            drawState.isUnderlineText = underlined
            drawState.color = textColor
        }
    }
    val index = spannableString.indexOf(str)
    spannableString.setSpan(clickableSpan, index, index + str.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
    textView.text = spannableString
    textView.movementMethod = LinkMovementMethod.getInstance()
    textView.highlightColor = Color.TRANSPARENT
}

它可以被多次调用,在TextView中创建几个链接:

makeTextLink(myTextView, str, false, Color.RED, action = { Log.d("onClick", "link") })
makeTextLink(myTextView, str1, true, null, action = { Log.d("onClick", "link1") })

Phan Van Linh回答的版本。

请注意它有一些小的改动。

fun makeLinks(textView: TextView, links: Array<String>, clickableSpans: Array<ClickableSpan>) {
    val spannableString = SpannableString(textView.text)

    for (i in links.indices) {
        val clickableSpan = clickableSpans[i]
        val link = links[i]

        val startIndexOfLink = textView.text.indexOf(link)

        spannableString.setSpan(clickableSpan, startIndexOfLink, startIndexOfLink + link.length,
                Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
    }

    textView.movementMethod = LinkMovementMethod.getInstance()
    textView.setText(spannableString, TextView.BufferType.SPANNABLE)
}

fun setupClickableTextView() {
    val termsOfServicesClick = object : ClickableSpan() {
        override fun onClick(p0: View?) {
            Toast.makeText(applicationContext, "ToS clicked", Toast.LENGTH_SHORT).show()
        }
    }

    val privacyPolicyClick = object : ClickableSpan() {
        override fun onClick(p0: View?) {
            Toast.makeText(applicationContext, "PP clicked", Toast.LENGTH_SHORT).show()
        }
    }

    makeLinks(termsTextView, arrayOf("terms", "privacy policy"), arrayOf(termsOfServicesClick, privacyPolicyClick))
}
 t= (TextView) findViewById(R.id.PP1);

 t.setText(Html.fromHtml("<bThis is normal text </b>" +
                "<a href=\"http://www.xyz-zyyx.com\">This is cliclable text</a> "));
 t.setMovementMethod(LinkMovementMethod.getInstance());

使用URLSpan类获取url

val spans: Array<URLSpan> = result.getSpans(0, result.length, URLSpan::class.java)

方法

fun TextView.createClickable(string: String, action:(String)->Unit ) {
      text = HtmlCompat.fromHtml(string, HtmlCompat.FROM_HTML_MODE_LEGACY)
      val result = SpannableString(text)
      val spans = result.getSpans(0, result.length, URLSpan::class.java)
      for (span in spans) {
          val link:Pair<String, View.OnClickListener> = Pair(span.url, View.OnClickListener {
              action(span.url)
          })
          val start = result.getSpanStart(span)
          val end = result.getSpanEnd(span)
          val flags = result.getSpanFlags(span)
          result.removeSpan(span)
          val clickableSpan: ClickableSpan = object : ClickableSpan() {
              override fun onClick(textView: View) {
                  textView.invalidate()
                  link.second.onClick(textView)
              }
              override fun updateDrawState(textPaint: TextPaint) {
                  super.updateDrawState(textPaint)
                  textPaint.isUnderlineText = false
              }
          }
          result.setSpan(clickableSpan, start, end, flags)
          this.movementMethod = LinkMovementMethod.getInstance()
          this.setText(result, TextView.BufferType.SPANNABLE)
      }
  }

Use

示例文本:Android是一个软件堆栈,它非常棒

包装你的可点击的文本内锚标签

比如:Android是一个软件<a href='https://example.com/stack'> Stack </a>和它' <a href='https://example.com/awesome'> Awesome </a>。

 val str = "Android is a Software <a href='https://example.com/stack'> Stack </a> and it' <a href='https://example.com/awesome'> Awesome </a>."

textView.createClickable(str) {
    when(it) {
        "https://example.com/stack"->{
  startActivity(Intent(this,StackActivity::class.java))
                  }
        "https://example.com/awesom"->{
            startActivity(Intent(this,AwesomeActivity::class.java))
        }
    }
}