CODEWITHSUNDEEP
androidspannablestring
Christos Thb
Christos Thb

Reputation: 27

Clickable SpannableString in android

I have the bellow code:

SpannableString ss = new SpannableString("Translators");
ClickableSpan myClickableSpan = new ClickableSpan()
{
    @Override
    public void onClick(View v) {
    // do something;
    }
};
ss.setSpan(myClickableSpan, 0, ss.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

But when i add the SpannableString into a String is unclickable and not underline

String thanks="Also thanks the "+ss;

Any ideas?

Upvotes: 0

Views: 1942

Answers (1)

Barend
Barend

Reputation: 17444

This line is the problem:

String thanks="Also thanks the "+ss;

The right-hand side of the + expression is a spannable string, the left hand side is a regular string (with no spanning support). The + operator on strings causes the Java compiler to just put .toString() after your ss variable (in a null-safe way), and converting the spannable string to a normal string discards the spans.

To fix it, get rid of the string concatenation. You could use SpannableStringBuilder in place of SpannableString, and use the insert(...) method to put the "Also thanks to the" in there without losing the spans.

There's a simpler way though, your question code came quite close:

SpannableString ss = new SpannableString("Also thanks to the Translators");
ClickableSpan myClickableSpan = new ClickableSpan() { /*...*/ };

int spanStart = 20; // length of "Also thanks to the "
ss.setSpan(myClickableSpan, spanStart, ss.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

Upvotes: 4

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