Reputation: 590
I tried this code to create a TextView with the string "abcde" where 'b' and 'd' have spanning:
private void testStringSpanning(TextView tv)
{
// blue
ForegroundColorSpan fcs = new ForegroundColorSpan( Color.BLUE );
SpannableString a = new SpannableString( "a" );
SpannableString b = new SpannableString( "b" );
b.setSpan( fcs, 0, 1, Spannable.SPAN_INCLUSIVE_INCLUSIVE );
SpannableString c = new SpannableString( "c" );
SpannableString d = new SpannableString( "d" );
d.setSpan( fcs, 0, 1, Spannable.SPAN_INCLUSIVE_INCLUSIVE );
SpannableString e = new SpannableString( "e" );
SpannableStringBuilder builder = new SpannableStringBuilder();
builder.append(a);
builder.append(b);
builder.append(c);
builder.append(d);
builder.append(e);
tv.setText( builder, BufferType.SPANNABLE);
}
The result is not as I want. a, c and e should be plain white and b d should be blue.
What am I doing wrong?
Upvotes: 2
Views: 2070
Reputation: 1007
Try this:
ForegroundColorSpan fcs = new ForegroundColorSpan( Color.BLUE );
//your strings in case you have most than one
String str1 = new String("a");
String str2 = new String("b");
String str3 = new String("c");
String str4 = new String("d");
//or a single one str = new String ("abcd")
//set all to on a TV
TextView string =(TextView)findViewById(R.id.tvString);
string.setText( str1 + str2 + str3 + str4, TextView.BufferType.SPANNABLE );
//convert all string y a single SpannableString
SpannableString s = (SpannableString)string.getText();
//This variables hepl you counting large strings
int str1_lenght = str1.length();
int str2_lenght = srt2.length();
int str3_lenght = srt3.length();
int str4_lenght = srt4.length();
//setting color on an specific string
s.setSpan(fcs, str1_lenght, str1_lenght + str2_lenght, 0);
s.setSpan(fcs, str1_lenght + str2_lenght + str3_lenght, str1_lenght + str2_lenght + str3_lenght + str4_lenght, 0);
Upvotes: 1
Reputation: 29
If you setSpan to the letters C and E, does it look correct at that point? I have a feeling that the setSpan on letter B is overwriting the 'default' on the remaining characters. That's my shot in the dark.
Upvotes: 0