Android:在TextView中显示部分消息

TextView textView = findViewById(R.id.textView);
SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder("这是一条完整的消息");

// 设置样式和内容
ForegroundColorSpan colorSpan = new ForegroundColorSpan(Color.RED);
spannableStringBuilder.setSpan(colorSpan, 0, 4, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

textView.setText(spannableStringBuilder);

TextView textView = findViewById(R.id.textView);
String htmlText = "<font color='#FF0000'>这是一条完整的消息</font>";
textView.setText(Html.fromHtml(htmlText));

TextView textView = findViewById(R.id.textView);
String originalText = "这是一条完整的消息";
String partialText = originalText.subSequence(0, 4) + "...";
textView.setText(partialText);