使用SpannableStringBuilder

SpannableStringBuilder builder = new SpannableStringBuilder();

SpannableString str1= new SpannableString("Text1");
str1.setSpan(new ForegroundColorSpan(Color.RED), 0, str1.length(), 0);
builder.append(str1);

SpannableString str2= new SpannableString(appMode.toString());
str2.setSpan(new ForegroundColorSpan(Color.GREEN), 0, str2.length(), 0);
builder.append(str2);

TextView tv = (TextView) view.findViewById(android.R.id.text1);
tv.setText( builder, TextView.BufferType.SPANNABLE);

@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)

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。

使用SpannableStringBuilder

SpannableStringBuilder builder = new SpannableStringBuilder();

SpannableString str1= new SpannableString("Text1");
str1.setSpan(new ForegroundColorSpan(Color.RED), 0, str1.length(), 0);
builder.append(str1);

SpannableString str2= new SpannableString(appMode.toString());
str2.setSpan(new ForegroundColorSpan(Color.GREEN), 0, str2.length(), 0);
builder.append(str2);

TextView tv = (TextView) view.findViewById(android.R.id.text1);
tv.setText( builder, TextView.BufferType.SPANNABLE);

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!

我是这样做的:

通过传递String和Color在文本上设置颜色:

private String getColoredSpanned(String text, String color) {
    String input = "<font color=" + color + ">" + text + "</font>";
    return input;
}

通过调用下面的代码设置TextView / Button / EditText等文本:

TextView:

TextView txtView = (TextView)findViewById(R.id.txtView);

获取彩色字符串:

String name = getColoredSpanned("Hiren", "#800000");
String surName = getColoredSpanned("Patel","#000080");

在TextView上设置两个不同颜色的字符串的文本:

txtView.setText(Html.fromHtml(name+" "+surName));

Done