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May 6, 2024 11:14
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Embedd a Hyperlink within a Text using Jetpack Compose.
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import androidx.compose.foundation.text.ClickableText | |
import androidx.compose.runtime.Composable | |
import androidx.compose.ui.Modifier | |
import androidx.compose.ui.graphics.Color | |
import androidx.compose.ui.platform.LocalUriHandler | |
import androidx.compose.ui.text.SpanStyle | |
import androidx.compose.ui.text.buildAnnotatedString | |
import androidx.compose.ui.text.font.FontWeight | |
import androidx.compose.ui.text.style.TextDecoration | |
import androidx.compose.ui.unit.TextUnit | |
@Composable | |
fun HyperlinkText( | |
modifier: Modifier = Modifier, | |
fullText: String, | |
linkText: List<String>, | |
linkTextColor: Color = Color.Blue, | |
linkTextFontWeight: FontWeight = FontWeight.Medium, | |
linkTextDecoration: TextDecoration = TextDecoration.Underline, | |
hyperlinks: List<String> = listOf("https://stevdza-san.com"), | |
fontSize: TextUnit = TextUnit.Unspecified | |
) { | |
val annotatedString = buildAnnotatedString { | |
append(fullText) | |
linkText.forEachIndexed { index, link -> | |
val startIndex = fullText.indexOf(link) | |
val endIndex = startIndex + link.length | |
addStyle( | |
style = SpanStyle( | |
color = linkTextColor, | |
fontSize = fontSize, | |
fontWeight = linkTextFontWeight, | |
textDecoration = linkTextDecoration | |
), | |
start = startIndex, | |
end = endIndex | |
) | |
addStringAnnotation( | |
tag = "URL", | |
annotation = hyperlinks[index], | |
start = startIndex, | |
end = endIndex | |
) | |
} | |
addStyle( | |
style = SpanStyle( | |
fontSize = fontSize | |
), | |
start = 0, | |
end = fullText.length | |
) | |
} | |
val uriHandler = LocalUriHandler.current | |
ClickableText( | |
modifier = modifier, | |
text = annotatedString, | |
onClick = { | |
annotatedString | |
.getStringAnnotations("URL", it, it) | |
.firstOrNull()?.let { stringAnnotation -> | |
uriHandler.openUri(stringAnnotation.item) | |
} | |
} | |
) | |
} |
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This implementation as many others online does not work well with Accesibility. TalkBack is not reading each link individually and by that they are not triggered. I'm working on this and if I have a solution for it in Compose only i'll share it here. In the meantime you can maybe can be aware of it too :)