I'm getting an html from a service that I need to print in a textview. In this case the html has two links the first one works bt the second one doesn't.

XML:

<TextView
                        android:id="@ id/_doctor_comments"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:gravity="start"
                        android:orientation="horizontal"
                        android:paddingStart="16dp"
                        android:paddingTop="12dp"
                        android:paddingEnd="16dp"
                        android:paddingBottom="12dp"
                        android:textSize="14dp"
                        app:textType="regular"/>

Print code in textview:

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            val result = Html.fromHtml(HtmlCompat.fromHtml(data.consultationData.doctorAnswer, HtmlCompat.FROM_HTML_MODE_LEGACY).toString())
            txtDoctorComments.text = result
            txtDoctorComments.movementMethod = LinkMovementMethod.getInstance()
        } else {
            txtDoctorComments.text = Html.fromHtml(Html.fromHtml(data.consultationData.doctorAnswer).toString())
            txtDoctorComments.movementMethod = LinkMovementMethod.getInstance()
        }

This is what I get from the service:

Esto es lo que debes hacer <a href="https://www.google.com">link aqui</a>

esto es otra prueba solo con el texto https://www.google.com

And here you can see what it's print in the textview:

And as you can see the htts://www.google.com will not behave as a link and it isn't highlighted and neither clickable. If anyone has a clue of why this happens please give me any advice.

CodePudding user response：

So there are two things.

1. Your other link is just added as plain text. It does not have a <a href which can be detected by HtmlCompat.fromHtml. So if you want that second text is also displayed as a link. You've to modify the response.

Example:

val sampleText =
            "Esto es lo que debes hacer <a href="https://www.google.com">link aqui</a>\n"  
                "\n"  
                "esto es otra prueba solo con el texto <a href="https://www.google.com">https://www.google.com</a>"

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            val result = HtmlCompat.fromHtml(
                HtmlCompat.fromHtml(
                    sampleText,
                    HtmlCompat.FROM_HTML_MODE_LEGACY
                ).toString(), HtmlCompat.FROM_HTML_MODE_LEGACY
            )
            txtDoctorComments.text = result
            txtDoctorComments.movementMethod = LinkMovementMethod.getInstance()
        } else {
            txtDoctorComments.text =
                Html.fromHtml(Html.fromHtml(sampleText).toString())
            txtDoctorComments.movementMethod = LinkMovementMethod.getInstance()
        } 

Output:

2. If you want an automatic way to detect links from plain text which does not have anchor text then you can use Linkify.addLinks(txtDoctorComments,Linkify.WEB_URLS).

Example:

val sampleText =
            "Esto es lo que debes hacer <a href="https://www.google.com">link aqui</a>\n"  
                "\n"  
                "esto es otra prueba solo con el texto https://www.google.com"


        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            val result = HtmlCompat.fromHtml(
                HtmlCompat.fromHtml(
                    sampleText,
                    HtmlCompat.FROM_HTML_MODE_LEGACY
                ).toString(), HtmlCompat.FROM_HTML_MODE_LEGACY
            )
            txtDoctorComments.text = result
            Linkify.addLinks(txtDoctorComments, Linkify.WEB_URLS)
        } else {
            txtDoctorComments.text =
                Html.fromHtml(Html.fromHtml(sampleText).toString())
            txtDoctorComments.movementMethod = LinkMovementMethod.getInstance()
        } 

Output:

Note: You can either have an anchor tag "<a" or a plain-text link. Unfortunately, both can't be combined directly.