android textview自动链接和<a href>可点击</a>

Question

我有这样的文本视图：

<TextView
        android:id="@+id/tvComment"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:autoLink="web" />

tvComment.setText(Html.fromHtml(message));

这是我的文字：

<a href='myapp://293482'>Jack </a> http://google.com

问题是<a href>不可点击。 如果我删除android:autoLink="web" ，它是可点击的，但链接http://google.com不起作用。
我怎样才能让它们都可点击？

Answer 1

请试试这个：

XML

<TextView
    android:id="@+id/tvHello"
    android:text="@string/hello_world"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:linksClickable="true"
    />

爪哇

@Override
protected void onCreate(Bundle savedInstanceState) {
{
    ...
    String html = "<a href='myapp://293482'>Jack </a> http://google.com";
    tvHello = (TextView) findViewById(R.id.tvHello);
    tvHello.setText(linkifyHtml(html, Linkify.ALL));
    tvHello.setMovementMethod(LinkMovementMethod.getInstance());
}

public static Spannable linkifyHtml(String html, int linkifyMask) {
    Spanned text = Html.fromHtml(html);
    URLSpan[] currentSpans = text.getSpans(0, text.length(), URLSpan.class);

    SpannableString buffer = new SpannableString(text);
    Linkify.addLinks(buffer, linkifyMask);

    for (URLSpan span : currentSpans) {
        int end = text.getSpanEnd(span);
        int start = text.getSpanStart(span);
        buffer.setSpan(span, start, end, 0);
    }
    return buffer;
}

Answer 2

根据Linkify.addLinks javadoc：

...它还删除了附加到 Spannable 的任何现有 URLSpans，以避免在同一文本上重复调用它时出现问题。

这是基于@nuuneoi 回答的 Kotlin 风格：

private fun String.toSpannableWithHtmlAndAutoLink() =
    Html.fromHtml(this, Html.FROM_HTML_MODE_COMPACT).let { text ->
        text.toSpannable().apply {
            Linkify.addLinks(this, Linkify.ALL)
            text.getSpans<URLSpan>().forEach {
                setSpan(it, text.getSpanStart(it), text.getSpanEnd(it), text.getSpanFlags(it))
            }
        }
    }


@BindingAdapter("textWithLinks")
fun setTextWithLinks(view: TextView, message: String?) = view.apply {
    text = message?.toSpannableWithHtmlAndAutoLink()
    movementMethod = LinkMovementMethod.getInstance()
}

Answer 3

/**
 * This method is used to set clickable part in text
 * Don't forget to set android:textColorLink="@color/link" (click selector) and
 * android:textColorHighlight="@color/window_background" (background color while clicks)
 * in the TextView where you will use this.
 */
   
 

    fun TextView.makeLinks(text: Spanned, conditionMatch: Boolean, action: () -> Unit) {
            this.text = text
            if (conditionMatch) {
                val startIndex = text.lastIndexOf(Constants.COMMA)
                val endIndex = text.lastIndexOf(Constants.DOT_DELIMITER)
                this.movementMethod = LinkMovementMethod.getInstance()
                this.setText(text, TextView.BufferType.SPANNABLE)
                val clickableSpan: ClickableSpan = object : ClickableSpan() {
                    override fun onClick(widget: View) {
                        action.invoke()
                    }
                }
                val mySpannable: Spannable? = this.text as Spannable?
                mySpannable?.setSpan(clickableSpan, startIndex + Constants.NumericConstants.TWO, endIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
            }