java在发送电子邮件时更改文本（字符串）的颜色

Question

当我将文本（字符串）输出到电子邮件时，我试图改变文本的颜色。我的代码是：

String appdata = "%" + txtFromSpinner + location.getText() + "%" + date.getText()+ "%" + start.getText() + "%" + finish.getText() + "%" + lunch.getText() + "%" + details.getText();
Intent emailIntent = new Intent(Intent.ACTION_SEND);
emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[]{"payrolldirectgib@gmail.com"});
emailIntent.putExtra(Intent.EXTRA_SUBJECT, "Timesheet/Parte de horas");
emailIntent.putExtra(Intent.EXTRA_TEXT, appdata +sep+ "Please send this email."+sep+ "Your timesheet details are included in it."+sep+ "Thank you."+sep+ "Regards,"+sep+ "Admin Department."+sep+ "Payroll Direct.");
emailIntent.setType("message/rfc822");
startActivity(emailIntent);

我希望字符串“appdata”在电子邮件框中显示为红色

这能做到吗？如何做到

先谢谢你

Answer 1

使用如下所示的代码：

emailIntent.putExtra(Intent.EXTRA_TEXT, Html.fromHtml("<font color='#FE2B3C'>"+appdata+"</font>"+sep+"Please send this email."));

Answer 2

有两种方法

方法1

SpannableStringBuilder builder = new SpannableStringBuilder();
SpannableString redSpannable= new SpannableString(appdata);
redSpannable.setSpan(new ForegroundColorSpan(Color.RED), 0, appdata.length(), 0);
builder.append(redSpannable);

方法2

appdata_in_red = Html.fromHtml("<font color=#ff0000>" + appdate + "</font>");

我采用了最简单的方法，并将其集成到您的代码中，如下所示：

String appdata = "%" + txtFromSpinner + location.getText() + "%" + date.getText()+ "%" + start.getText() + "%" + finish.getText() + "%" + lunch.getText() + "%" + details.getText();

Intent emailIntent = new Intent(Intent.ACTION_SEND);
emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[]{"payrolldirectgib@gmail.com"});
emailIntent.putExtra(Intent.EXTRA_SUBJECT, "Timesheet/Parte de horas");
//this line below
emailIntent.putExtra(Intent.EXTRA_TEXT, Html.fromHtml("<font color=#ff0000>" + appdata + "</font>") +sep+ "Please send this email."+sep+ "Your timesheet details are included in it."+sep+ "Thank you."+sep+ "Regards,"+sep+ "Admin Department."+sep+ "Payroll Direct.");
emailIntent.setType("message/rfc822");
startActivity(emailIntent);

我希望我的回答能帮助你