芬兰湾的科特林回答

fun setTextColor(tv:TextView, startPosition:Int, endPosition:Int, color:Int){
    val spannableStr = SpannableString(tv.text)

    val underlineSpan = UnderlineSpan()
    spannableStr.setSpan(
        underlineSpan,
        startPosition,
        endPosition,
        Spanned.SPAN_INCLUSIVE_EXCLUSIVE
    )

    val backgroundColorSpan = ForegroundColorSpan(this.resources.getColor(R.color.agreement_color))
    spannableStr.setSpan(
        backgroundColorSpan,
        startPosition,
        endPosition,
        Spanned.SPAN_INCLUSIVE_EXCLUSIVE
    )

    val styleSpanItalic = StyleSpan(Typeface.BOLD)
    spannableStr.setSpan(
        styleSpanItalic,
        startPosition,
        endPosition,
        Spanned.SPAN_INCLUSIVE_EXCLUSIVE
    )

    tv.text = spannableStr
}

之后，调用上述函数。你可以拨打多个电话:

setTextColor(textView, 0, 61, R.color.agreement_color)
setTextColor(textView, 65, 75, R.color.colorPrimary)

输出: 你可以看到下划线和不同的颜色。

我不知道，因为这是可能的，但你可以简单地添加<font> </font>到你的string.xml，这将自动改变每个文本的颜色。不需要添加任何额外的代码，如可扩展的文本等。

例子

<string name="my_formatted_text">
    <font color="#FF0707">THIS IS RED</font>
    <font color="#0B132B">AND NOW BLUE</font>
</string>

是的，如果你用html的font-color属性格式化字符串，然后把它传递给方法html . fromhtml(你的文本在这里)

String text = "<font color=#cc0029>First Color</font> <font color=#ffcc00>Second Color</font>";
yourtextview.setText(Html.fromHtml(text));

很棒的答案!我能够使用Spannable构建彩虹色的文本(所以这可以重复为任何颜色的数组)。这是我的方法，如果它能帮助到任何人的话:

private Spannable buildRainbowText(String pack_name) {
        int[] colors = new int[]{Color.RED, 0xFFFF9933, Color.YELLOW, Color.GREEN, Color.BLUE, Color.RED, 0xFFFF9933, Color.YELLOW, Color.GREEN, Color.BLUE, Color.RED, 0xFFFF9933, Color.YELLOW, Color.GREEN, Color.BLUE, Color.RED, 0xFFFF9933, Color.YELLOW, Color.GREEN, Color.BLUE};
        Spannable word = new SpannableString(pack_name);
        for(int i = 0; i < word.length(); i++) {
            word.setSpan(new ForegroundColorSpan(colors[i]), i, i+1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }
        return word;
    }

然后我只是setText(buildRainboxText(pack_name)); 注意，我传入的所有单词都在15个字符以下，这只是重复5种颜色3次-你需要根据你的使用调整数组的颜色/长度!

@Swapnil Kotwal回答的Kotlin版本。

Android Studio 4.0.1, Kotlin 1.3.72

val greenText = SpannableString("This is green,")
greenText.setSpan(ForegroundColorSpan(resources.getColor(R.color.someGreenColor), null), 0, greenText.length, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
yourTextView.text = greenText

val yellowText = SpannableString("this is yellow, ")
yellowText.setSpan(ForegroundColorSpan(resources.getColor(R.color.someYellowColor), null), 0, yellowText.length, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
yourTextView.append(yellowText)

val redText = SpannableString("and this is red.")
redText.setSpan(ForegroundColorSpan(resources.getColor(R.color.someRedColor), null), 0, redText.length, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
yourTextView.append(redText)

让普通函数转换你的字符串是可扩展的，像这样。

//pass param textviewid ,start,end,string
//R.color.Red it's your color you can change it as requirement

fun SpannableStringWithColor(view: TextView,start:Int,end:Int, s: String) {
    val wordtoSpan: Spannable =
        SpannableString(s)
    wordtoSpan.setSpan(
        ForegroundColorSpan(ContextCompat.getColor(view.context, R.color.Red)),
        start,
        end,
        Spannable.SPAN_EXCLUSIVE_EXCLUSIVE
    )
    view.text = wordtoSpan
    }

像这样的要求我们可以在任何地方使用。

 SpannableStringWithColor(tvMobileNo,0,14,"Mobile Number :   " + "123456789")

 SpannableStringWithColor(tvEmail,0,5,"Email :   " + "abc@gmail.com" "))

 SpannableStringWithColor(tvAddress,0,8,"Address :   " + "Delhi India")