How to set the part of the text view is clickable

后端未结

关注

 20  981

I have the text \"Android is a Software stack\". In this text i want to set the \"stack\" text is clickable. in the sense if you click on t

相关标签:

20条回答

长发绾君心

2020-11-22 02:22

i coded an example to solve your question in Kotlin.

This is the Code:

    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;

This is the 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"/>

This is how it looks

enter image description here

0 讨论(0)

逝去的感伤

2020-11-22 02:25

For bold,

mySpannable.setSpan(new StyleSpan(Typeface.BOLD),termStart,termStop,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

0 讨论(0)

眼角桃花

2020-11-22 02:26

The solutions provided are pretty decent. However, I generally use a more simple solution.

Here is a linkify utility function

/**
 * Method is used to Linkify words in a TextView
 *
 * @param textView TextView who's text you want to change
 * @param textToLink The text to turn into a link
 * @param url   The url you want to send the user to
 */
fun linkify(textView: TextView, textToLink: String, url: String) {
    val pattern = Pattern.compile(textToLink)
    Linkify.addLinks(textView, pattern, url, { _, _, _ -> true })
    { _, _ -> "" }
}

Using this function is pretty simple. Here is an example

    // terms and privacy
    val tvTerms = findViewById<TextView>(R.id.tv_terms)
    val tvPrivacy = findViewById<TextView>(R.id.tv_privacy)
    Utils.linkify(tvTerms, resources.getString(R.string.terms),
            Constants.TERMS_URL)
    Utils.linkify(tvPrivacy, resources.getString(R.string.privacy),
            Constants.PRIVACY_URL)

0 讨论(0)

别那么骄傲

2020-11-22 02:29

For those that are looking for a solution in Kotlin here is what worked for me:

private fun setupTermsAndConditions() {
    val termsAndConditions = resources.getString(R.string.terms_and_conditions)
    val spannableString = SpannableString(termsAndConditions)
    val clickableSpan = object : ClickableSpan() {
        override fun onClick(widget: View) {
            if (checkForWifiAndMobileInternet()) {
                // binding.viewModel!!.openTermsAndConditions()
                showToast("Good, open the link!!!")

            } else {
                showToast("Cannot open this file because of internet connection!")
            }

        }

        override fun updateDrawState(textPaint : TextPaint) {
            super.updateDrawState(textPaint)
            textPaint.color = resources.getColor(R.color.colorGrey)
            textPaint.isFakeBoldText = true
        }
    }

    spannableString.setSpan(clickableSpan, 34, 86, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
    binding.tvTermsAndConditions.text = spannableString
    binding.tvTermsAndConditions.movementMethod = LinkMovementMethod.getInstance()
    binding.tvTermsAndConditions.setHighlightColor(Color.TRANSPARENT);

}

0 讨论(0)

我寻月下人不归

2020-11-22 02:31

My function for make multiple links inside TextView

fun TextView.makeLinks(vararg links: Pair<String, View.OnClickListener>) {
    val spannableString = SpannableString(this.text)
    for (link in links) {
        val clickableSpan = object : ClickableSpan() {

            override fun updateDrawState(textPaint: TextPaint) {
                 // use this to change the link color
                 textPaint.color = textPaint.linkColor
                 // toggle below value to enable/disable
                 // the underline shown below the clickable text
                 textPaint.isUnderlineText = true
            }

            override fun onClick(view: View) {
                Selection.setSelection((view as TextView).text as Spannable, 0)
                view.invalidate()
                link.second.onClick(view)
            }
        }
        val startIndexOfLink = this.text.toString().indexOf(link.first)
        spannableString.setSpan(clickableSpan, startIndexOfLink, startIndexOfLink + link.first.length,
                Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
    }
    this.movementMethod = LinkMovementMethod.getInstance() // without LinkMovementMethod, link can not click
    this.setText(spannableString, TextView.BufferType.SPANNABLE)
}

USING

my_text_view.makeLinks(
        Pair("Terms of Service", View.OnClickListener {
            Toast.makeText(applicationContext, "Terms of Service Clicked", Toast.LENGTH_SHORT).show()
        }),
        Pair("Privacy Policy", View.OnClickListener {
            Toast.makeText(applicationContext, "Privacy Policy Clicked", Toast.LENGTH_SHORT).show()
        }))

XML

<TextView
    android:id="@+id/my_text_view"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Please accept Terms of Service and Privacy Policy"
    android:textColorHighlight="#f00" // background color when pressed
    android:textColorLink="#0f0"
    android:textSize="20sp" />

DEMO

Reference

Solution for clear the link highlight selection follow https://stackoverflow.com/a/19445108/5381331

0 讨论(0)

耶瑟儿～

2020-11-22 02:31