santaevpavel / outlinespan

Android library for outlining text

OutlineSpan

Library (just one class) for outlining TextView.

How to use

Use android's Spannable class for changing style of part of text.

val outlineSpan = OutlineSpan(
    strokeColor = Color.RED,
    strokeWidth = 4F
)
val text = "Outlined text"
val spannable = SpannableString(text)
spannable.setSpan(outlineSpan, 0, 8, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)

// Set text of TextView
binding.outlinedText.text = spannable 

Result:

Download (Gradle)

Add Jitpack repository:

repositories {
    maven { url 'https://jitpack.io' }
}

Add dependency:

dependencies {
    implementation 'com.github.santaevpavel:OutlineSpan:0.1.1'
}

If you don't want to add dependency, you can copy class OutlineSpan to your project.

Sample

Link

outlinespan's Issues

When set span on whole text the text becomes invisible

I am setting the span on whole text but there is a problem if a set it on complete text length then the text becomes invisible.

spannableString.setSpan(testSpan,0,txt.length(),Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
If i set like this then it works:
spannableString.setSpan(testSpan,2,txt.length(),Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
just set srtart to any other numbe than 0.

Text with length <= 2 become invisible

All works perfectly, if text length is 3 or more, but with 2 or less text length TextView's width become 0

OutlineSpan with StaticLayout and less width

I am using this OutlineSpan with StaticLayout.

It works fine when I pass the width to the static layout by measuring like that

StaticLayout.getDesiredWidth(txt, textPaint);

But When i set less width than the actual width that will wrap the text then It is the property of static layout that it automatically increases the number of lines of the text and keeps the width the one that we provide.

But when I use OutlineSpan and decrease the width it doesn't increase the number of lines instead it just draw the text with its complete width that will wrap the text.

In short, using OutlineSpan and StaticLayout with less width does not affect anything it just draws the text with actual width.

I hope you will understand my problem if you have worked with StaticLayout. Otherwise please ask me questions.
Thanks