Created
October 28, 2013 00:36
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If you've got a TextView with clickable links setup using HTML and LinkMovementMethod ( http://stackoverflow.com/questions/2734270/how-do-i-make-links-in-a-textview-clickable/2746708#2746708 ), this class allows you to hide either the underlines or the entire link - useful, for example, if you're showing tweets and need to link to profiles etc.
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/** | |
* Copyright 2013 Adam Speakman | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package nz.net.speakman.android.example; | |
import android.text.Spannable; | |
import android.text.TextPaint; | |
import android.text.style.URLSpan; | |
import android.widget.TextView; | |
/** | |
* Hides links within a text view. | |
*/ | |
public class TextViewLinkHider { | |
class HiddenURLSpan extends URLSpan { | |
public HiddenURLSpan(URLSpan span) { | |
super(span.getURL()); | |
} | |
@Override | |
public void updateDrawState(TextPaint ds) { | |
ds.setUnderlineText(false); | |
} | |
} | |
class NonUnderlinedURLSpan extends URLSpan { | |
public NonUnderlinedURLSpan(URLSpan span) { | |
super(span.getURL()); | |
} | |
@Override | |
public void updateDrawState(TextPaint ds) { | |
super.updateDrawState(ds); | |
ds.setUnderlineText(false); | |
} | |
} | |
/** | |
* Removes underlining from any URLSpans (links) within the supplied TextView. | |
*/ | |
public void hideLinkUnderlines(TextView textView) { | |
Spannable text = (Spannable) textView.getText(); | |
URLSpan[] spansToHide = text.getSpans(0, text.length(), URLSpan.class); | |
for (URLSpan spanToHide : spansToHide) { | |
hideSpan(text, spanToHide, new NonUnderlinedURLSpan(spanToHide)); | |
} | |
} | |
/** | |
* Removes underlining and coloring from any URLSpans (links) within the supplied TextView. | |
*/ | |
public void hideLinks(TextView textView) { | |
Spannable text = (Spannable) textView.getText(); | |
URLSpan[] spansToHide = text.getSpans(0, text.length(), URLSpan.class); | |
for (URLSpan spanToHide : spansToHide) { | |
hideSpan(text, spanToHide, new HiddenURLSpan(spanToHide)); | |
} | |
} | |
private void hideSpan(Spannable text, URLSpan spanToHide, URLSpan hiddenSpan) { | |
int start = text.getSpanStart(spanToHide); | |
int end = text.getSpanEnd(spanToHide); | |
int flags = text.getSpanFlags(spanToHide); | |
text.removeSpan(spanToHide); | |
text.setSpan(hiddenSpan, start, end, flags); | |
} | |
} |
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