SpannableStringBuilder、SpannableString设置文字样式、设置文案中部分文字样式（颜色、字体样式、点击事件）

• SpannableStringBuilder和SpannableString区别：类似于String和StringBuilder一样
• 部分文字添加点击事件以及文字样式修改

/**使用SpannableStringBuilder*/
val str = "今天晚上下雨啦！"
val value1 = "今天"
val start1 =  str.indexOf(value1)
val end1 = start1 + value1.length
val value = "下雨"
val start =  str.indexOf(value)
val end = start + value.length
val spannableBuild = SpannableStringBuilder(str)
//指定value添加点击事件
spannableBuild.setSpan(object: ClickableSpan(){
    override fun onClick(widget: View) {
        Toast.makeText(this@MainActivity, value1, Toast.LENGTH_SHORT).show()
    }

    override fun updateDrawState(ds: TextPaint) {
        super.updateDrawState(ds)
        ds.isUnderlineText = false
    }
},start1, end1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
spannableBuild.setSpan(object: ClickableSpan(){
    override fun onClick(widget: View) {
        Toast.makeText(this@MainActivity, value, Toast.LENGTH_SHORT).show()
    }
    
    override fun updateDrawState(ds: TextPaint) {
        super.updateDrawState(ds)
        ds.isUnderlineText = false
    }
},start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
//设置字体颜色
val spanColor1 = ForegroundColorSpan(resources.getColor(R.color.purple_700, null))
val spanColor2 = ForegroundColorSpan(resources.getColor(R.color.purple_700, null))
spannableBuild.setSpan(spanColor1,start1, end1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
spannableBuild.setSpan(spanColor2,start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
//value斜体加粗 --- Typeface.BOLD:加粗；Typeface.BOLD_ITALIC:斜体加粗
spannableBuild.setSpan(StyleSpan(Typeface.BOLD_ITALIC), start1, end1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
spannableBuild.setSpan(StyleSpan(Typeface.BOLD_ITALIC), start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
//设置字体大小
spannableBuild.setSpan(AbsoluteSizeSpan(resources.getDimensionPixelSize(R.dimen.dp_30)),start1,end1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
spannableBuild.setSpan(AbsoluteSizeSpan(resources.getDimensionPixelSize(R.dimen.dp_30)),start,end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
bind.tv02.text = spannableBuild
bind.tv02.movementMethod = LinkMovementMethod.getInstance()
//注意：如果点击事件和字体样式同时添加，点击事件顺序在前，字体样式顺序在后
//注意：添加点击事件时，需对TextView添加：tv.movementMethod = LinkMovementMethod.getInstance()



/**使用SpannableStringBuilder+SpannableString*/
val value = "下雨"
val spannableBuild = SpannableStringBuilder()
val spannableString = SpannableString("下雨")
//指定value添加点击事件
spannableString.setSpan(object: ClickableSpan(){
    override fun onClick(widget: View) {
        Toast.makeText(this@MainActivity, value, Toast.LENGTH_SHORT).show()
    }

    override fun updateDrawState(ds: TextPaint) {
        super.updateDrawState(ds)
        ds.isUnderlineText = false
    }
},0, value.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
//设置字体颜色
val spanColor = ForegroundColorSpan(resources.getColor(R.color.purple_700, null))
spannableString.setSpan(spanColor,0, value.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
//value斜体加粗 --- Typeface.BOLD:加粗；Typeface.BOLD_ITALIC:斜体加粗
spannableString.setSpan(StyleSpan(Typeface.BOLD_ITALIC), 0, value.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
//设置字体大小
spannableString.setSpan(AbsoluteSizeSpan(resources.getDimensionPixelSize(R.dimen.dp_30)),0,value.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
spannableBuild.append("今天晚上").append(spannableString).append("啦！")
bind.tv02.text = spannableBuild
bind.tv02.movementMethod = LinkMovementMethod.getInstance()

最后

以上就是昏睡鞋子为你收集整理的SpannableStringBuilder、SpannableString设置文字样式、设置文案中部分文字样式（颜色、字体样式、点击事件）的全部内容，希望文章能够帮你解决SpannableStringBuilder、SpannableString设置文字样式、设置文案中部分文字样式（颜色、字体样式、点击事件）所遇到的程序开发问题。

如果觉得靠谱客网站的内容还不错，欢迎将靠谱客网站推荐给程序员好友。