Chrome custom tabs and text box

Question

I have a text view with a link inside it. In the code, I call setMovementMethodto open the link when the user clicks on the text. But it opens in the default browser or in the browser.

How can I use custom chrome tabs with interactive text?

Answer 1

This is due to the fact that it TextViewcreates URLSpanwhich ClickableSpanfor each link text template. When it MovementMethodfinds the url, it calls the method onClick URLSpan. This event triggers the intent ACTION_VIEW, so you see the default browser instead.

, URLSpan, onClick CustomTabs.

URLSpan, onClick:

public class CustomTabsURLSpan extends URLSpan {
    public CustomTabsURLSpan(String url) {
        super(url);
    }

    public CustomTabsURLSpan(Parcel src) {
        super(src);
    }

    @Override
    public void onClick(View widget) {
       String url = getUrl();
       //attempt to open in CustomTabs, if that fails call super.onClick(widget);
    }
}

, :

public class LinkTransformationMethod implements TransformationMethod {

    @Override
    public CharSequence getTransformation(CharSequence source, View view) {
        if (view instanceof TextView) {
            TextView textView = (TextView) view;
            Linkify.addLinks(textView, Linkify.WEB_URLS);
            String stringText = textView.getText().toString();
            Spannable text = (Spannable) textView.getText();
            URLSpan[] spans = text.getSpans(0, textView.length(), URLSpan.class);
            for (int i = spans.length - 1; i >= 0; i--) {
                URLSpan oldSpan = spans[i];
                text.removeSpan(oldSpan);
                String url = oldSpan.getURL();
                int startIndex = stringText.indexOf(url);
                int lastIndex = startIndex + url.length();
                text.setSpan(new CustomTabsURLSpan(url), startIndex, lastIndex, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
            }
            return text;
        }
        return source;
    }

    @Override
    public void onFocusChanged(View view, CharSequence sourceText, boolean focused, int direction, Rect previouslyFocusedRect) {

    }
}

: https://medium.com/@nullthemall/make-textview-open-links-in-customtabs-12fdcf4bb684#.ig1chpbbe

Answer 2

Nikola , - .

Patterns.WEB_URL.matcher() , , .

:

textView.setTransformationMethod(new LinkTransformationMethod(Linkify.WEB_URLS | 
    Linkify.EMAIL_ADDRESSES | 
    Linkify.PHONE_NUMBERS));

:

public class LinkTransformationMethod implements TransformationMethod {

    private final int linkifyOptions;

    public LinkTransformationMethod(int linkifyOptions) {
        this.linkifyOptions = linkifyOptions;
    }

    @Override
    public CharSequence getTransformation(CharSequence source, View view) {
        if (view instanceof TextView) {
            TextView textView = (TextView) view;
            Linkify.addLinks(textView, linkifyOptions);
            if (textView.getText() == null || !(textView.getText() instanceof Spannable)) {
                return source;
            }
            Spannable text = (Spannable) textView.getText();
            URLSpan[] spans = text.getSpans(0, textView.length(), URLSpan.class);
            for (int i = spans.length - 1; i >= 0; i--) {
                URLSpan oldSpan = spans[i];
                int start = text.getSpanStart(oldSpan);
                int end = text.getSpanEnd(oldSpan);
                String url = oldSpan.getURL();
                if (!Patterns.WEB_URL.matcher(url).matches()) {
                    continue;
                }
                text.removeSpan(oldSpan);
                text.setSpan(new ChromeTabsUrlSpan(url), start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
            }
            return text;
        }
        return source;
    }

    @Override
    public void onFocusChanged(View view, CharSequence sourceText, boolean focused, int direction, Rect previouslyFocusedRect) {

    }
}