Example usage for android.text SpannableStringBuilder getSpanStart

List of usage examples for android.text SpannableStringBuilder getSpanStart

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Introduction

In this page you can find the example usage for android.text SpannableStringBuilder getSpanStart.

Prototype

public int getSpanStart(Object what)

Source Link

Document

Return the buffer offset of the beginning of the specified markup object, or -1 if it is not attached to this buffer.

Usage

From source file:Main.java

/**
 * Make UI TextView a html link.//from  w w w .  j av  a2 s .  c o  m
 * 
 * @param context the context
 * @param textView the text view
 * @param html the html containing link info
 */
public static void makeTextViewAHTMLLink(final Context context, TextView textView, String html) {
    textView.setLinksClickable(true);
    textView.setMovementMethod(LinkMovementMethod.getInstance());
    CharSequence sequence = Html.fromHtml(html);
    SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder(sequence);
    URLSpan[] urls = spannableStringBuilder.getSpans(0, sequence.length(), URLSpan.class);
    for (final URLSpan urlSpan : urls) {
        int start = spannableStringBuilder.getSpanStart(urlSpan);
        int end = spannableStringBuilder.getSpanEnd(urlSpan);
        int flags = spannableStringBuilder.getSpanFlags(urlSpan);
        ClickableSpan clickable = new ClickableSpan() {
            public void onClick(View view) {
                Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(urlSpan.getURL()));
                context.startActivity(intent);
            }

            @Override
            public void updateDrawState(TextPaint textPaint) {
                super.updateDrawState(textPaint);
                textPaint.setUnderlineText(false);
            }
        };
        spannableStringBuilder.removeSpan(urlSpan);
        spannableStringBuilder.setSpan(clickable, start, end, flags);
    }
    textView.setText(spannableStringBuilder);
}

From source file:com.keylesspalace.tusky.util.LinkHelper.java

/**
 * Finds links, mentions, and hashtags in a piece of text and makes them clickable, associating
 * them with callbacks to notify when they're clicked.
 *
 * @param view the returned text will be put in
 * @param content containing text with mentions, links, or hashtags
 * @param mentions any '@' mentions which are known to be in the content
 * @param listener to notify about particular spans that are clicked
 *//*from ww w  . ja  v a  2s .com*/
public static void setClickableText(TextView view, Spanned content, @Nullable Status.Mention[] mentions,
        final LinkListener listener) {

    SpannableStringBuilder builder = new SpannableStringBuilder(content);
    URLSpan[] urlSpans = content.getSpans(0, content.length(), URLSpan.class);
    for (URLSpan span : urlSpans) {
        int start = builder.getSpanStart(span);
        int end = builder.getSpanEnd(span);
        int flags = builder.getSpanFlags(span);
        CharSequence text = builder.subSequence(start, end);
        if (text.charAt(0) == '#') {
            final String tag = text.subSequence(1, text.length()).toString();
            ClickableSpan newSpan = new ClickableSpan() {
                @Override
                public void onClick(View widget) {
                    listener.onViewTag(tag);
                }

                @Override
                public void updateDrawState(TextPaint ds) {
                    super.updateDrawState(ds);
                    ds.setUnderlineText(false);
                }
            };
            builder.removeSpan(span);
            builder.setSpan(newSpan, start, end, flags);
        } else if (text.charAt(0) == '@' && mentions != null && mentions.length > 0) {
            String accountUsername = text.subSequence(1, text.length()).toString();
            /* There may be multiple matches for users on different instances with the same
             * username. If a match has the same domain we know it's for sure the same, but if
             * that can't be found then just go with whichever one matched last. */
            String id = null;
            for (Status.Mention mention : mentions) {
                if (mention.localUsername.equalsIgnoreCase(accountUsername)) {
                    id = mention.id;
                    if (mention.url.contains(getDomain(span.getURL()))) {
                        break;
                    }
                }
            }
            if (id != null) {
                final String accountId = id;
                ClickableSpan newSpan = new ClickableSpan() {
                    @Override
                    public void onClick(View widget) {
                        listener.onViewAccount(accountId);
                    }

                    @Override
                    public void updateDrawState(TextPaint ds) {
                        super.updateDrawState(ds);
                        ds.setUnderlineText(false);
                    }
                };
                builder.removeSpan(span);
                builder.setSpan(newSpan, start, end, flags);
            }
        } else {
            ClickableSpan newSpan = new CustomURLSpan(span.getURL());
            builder.removeSpan(span);
            builder.setSpan(newSpan, start, end, flags);
        }
    }
    view.setText(builder);
    view.setLinksClickable(true);
    view.setMovementMethod(LinkMovementMethod.getInstance());
}

From source file:com.zulip.android.util.CustomHtmlToSpannedConverter.java

private static void endSpan(SpannableStringBuilder text) {
    int len = text.length();
    Object obj = getLast(text, Href.class);
    int where = text.getSpanStart(obj);
    text.removeSpan(obj);/*from  www. jav  a  2 s .  co m*/
    if (where != len) {
        Href h = (Href) obj;
        if (h != null && h.mHref != null) {
            if (ZulipApp.get().getEmail().equals(h.mHref)) {
                text.setSpan(new ForegroundColorSpan(userMentionSelfColor), where, len,
                        Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            } else {
                text.setSpan(new ProfileSpan(h.mHref, userMentionColor), where, len,
                        Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            }
        }
    }
}

From source file:com.zulip.android.util.CustomHtmlToSpannedConverter.java

private static void end(SpannableStringBuilder text, Class kind, Object repl) {
    int len = text.length();
    Object obj = getLast(text, kind);
    int where = text.getSpanStart(obj);

    text.removeSpan(obj);/*ww  w.java 2  s . co  m*/

    if (where != len) {
        text.setSpan(repl, where, len, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    }

}

From source file:com.zulip.android.util.CustomHtmlToSpannedConverter.java

private static void endFont(SpannableStringBuilder text) {
    int len = text.length();
    Object obj = getLast(text, Font.class);
    int where = text.getSpanStart(obj);

    text.removeSpan(obj);// ww  w .ja va  2s .  c om

    if (where != len) {
        Font f = (Font) obj;

        if (!TextUtils.isEmpty(f.mColor)) {
            if (f.mColor.startsWith("@")) {
                Resources res = Resources.getSystem();
                String name = f.mColor.substring(1);
                int colorRes = res.getIdentifier(name, "color", "android");
                if (colorRes != 0) {
                    ColorStateList colors = res.getColorStateList(colorRes);
                    text.setSpan(new TextAppearanceSpan(null, 0, 0, colors, null), where, len,
                            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                }
            } else {
                int c = getHtmlColor(f.mColor);
                if (c != -1) {
                    text.setSpan(new ForegroundColorSpan(c | 0xFF000000), where, len,
                            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                }
            }
        }

        if (f.mFace != null) {
            text.setSpan(new TypefaceSpan(f.mFace), where, len, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }
    }
}

From source file:com.zulip.android.util.CustomHtmlToSpannedConverter.java

private static void endMultiple(SpannableStringBuilder text, Class kind, Object[] replArray) {
    int len = text.length();
    Object obj = getLast(text, kind);
    int where = text.getSpanStart(obj);

    text.removeSpan(obj);/*from   w w  w  . j  a  v a 2  s.  co  m*/

    if (where != len) {
        for (Object repl : replArray) {
            text.setSpan(repl, where, len, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }
    }

}

From source file:com.nttec.everychan.ui.presentation.HtmlParser.java

private static void endA(SpannableStringBuilder text) {
    int len = text.length();
    Object obj = getLast(text, Href.class);
    int where = text.getSpanStart(obj);

    text.removeSpan(obj);/*from   w  ww.  j av a  2s  .  c om*/

    if (where != len) {
        Href h = (Href) obj;

        if (h.mHref != null) {
            text.setSpan(new URLSpan(h.mHref), where, len, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }
    }
}

From source file:com.nttec.everychan.ui.presentation.HtmlParser.java

private static void endHeader(SpannableStringBuilder text) {
    int len = text.length();
    Object obj = getLast(text, Header.class);

    int where = text.getSpanStart(obj);

    text.removeSpan(obj);//from w ww .j a v a2  s.  c  o m

    // Back off not to change only the text, not the blank line.
    while (len > where && text.charAt(len - 1) == '\n') {
        len--;
    }

    if (where != len) {
        Header h = (Header) obj;

        text.setSpan(new RelativeSizeSpan(HEADER_SIZES[h.mLevel]), where, len,
                Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        text.setSpan(new StyleSpan(Typeface.BOLD), where, len, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    }
}

From source file:com.nttec.everychan.ui.presentation.HtmlParser.java

private static void end(SpannableStringBuilder text, Class<?> kind, Object repl) {
    int len = text.length();
    Object obj = getLast(text, kind);
    int where = text.getSpanStart(obj);

    text.removeSpan(obj);//from   ww  w.ja v  a 2 s . c o  m

    if (where != len) {
        text.setSpan(repl, where, len, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    }
}

From source file:com.nttec.everychan.ui.presentation.HtmlParser.java

private static void endFont(SpannableStringBuilder text) {
    int len = text.length();
    Object obj = getLast(text, Font.class);
    int where = text.getSpanStart(obj);

    text.removeSpan(obj);/*from   www.ja  v  a 2 s  .  c o  m*/

    if (where != len) {
        Font f = (Font) obj;

        if (!TextUtils.isEmpty(f.mColor)) {
            if (f.mColor.startsWith("@")) {
                Resources res = Resources.getSystem();
                String name = f.mColor.substring(1);
                int colorRes = res.getIdentifier(name, "color", "android");
                if (colorRes != 0) {
                    ColorStateList colors = CompatibilityUtils.getColorStateList(res, colorRes);
                    text.setSpan(new TextAppearanceSpan(null, 0, 0, colors, null), where, len,
                            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                }
            } else {
                int c = ColorHidden.getHtmlColor(f.mColor);
                if (c != -1) {
                    text.setSpan(new ForegroundColorSpan(c | 0xFF000000), where, len,
                            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                }
            }
        }

        if (f.mFace != null) {
            text.setSpan(new TypefaceSpan(f.mFace), where, len, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }

        if (f.mStyle != null) {
            List<Object> styleSpans = parseStyleAttributes(f.mStyle);
            for (Object span : styleSpans) {
                text.setSpan(span, where, len, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            }
        }
    }
}