I followed the instructions in Dick Wall's tutorial in the Android
Blog - Linkify your Text.
I wanted to match text in a TextField that looks like this "[geocode:
latitude:38.898748, longitude:-77.037684]" and construct a Content URI
and link for this text that would be used to load an Activity that
would display a map.
I could not get the links to show up....does anybosy have any idea
where I could be going wrong.....is there something I am
missing.......
I am able to get the Linkify.addLinks(TextField, Linkify.ALL) version
of the method to work OK and show the links but the regex version of
the method call just does not want to coorporate with me!
The code I used is as follows:
String pattern = "\\[geocode:.*latitude:[0-9]+\\.
[0-9]+,.*longitude:-*[0-9]+\\.[0-9]+]";
Pattern geocodeMatcher = Pattern.compile(pattern);
String geocodeViewURL = "content://
com.threespaces.android.browser/geocode/";
Linkify.addLinks((TextView)findViewById(R.id.userfield2),
geocodeMatcher, geocodeViewURL, new geocodeMatchFilter(), new
geocodeTransform());
//inner classes
public class geocodeTransform implements TransformFilter {
public String transformUrl(Matcher match, String url) {
int startLatitude = match.group().indexOf("latitude:", 0) + 9;
int endLatitude = match.group().indexOf(",", startLatitude);
String latitude = match.group().substring(startLatitude,
endLatitude);
int startLongitude = match.group().indexOf("longitude:", 0) +
10;
int endLongitude = match.group().indexOf("]", startLongitude);
String longitude = match.group().substring(startLongitude,
endLongitude);
return latitude + "/" + longitude;
}
}
public class geocodeMatchFilter implements MatchFilter {
public boolean acceptMatch(CharSequence s, int start, int end) {
return true;
}
}
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