jTextField中的同构文本.如何? [英] Fantom-text in jTextField. How?

问题描述

我们遇到了一些受欢迎的网站登录屏幕，其中在用户名文本框中输入了一个模糊的灰色用户名.我不知道可以在java swing中实现吗?

We come across some popular sites login screen, where a faint gray Username is written in username textbox. I wonder can be this implemented in java swings?

我有一些理论，可以通过mouseEvents实现.无法解决该怎么做.

I have theories, implementing by mouseEvents. Couldn't figure out how to to.

推荐答案

查看它允许您显示文本和/或图标，以提示使用文本字段.在文本字段中输入任何字符后，提示将被删除.

It allows you to display text and/or icon as a prompt for the usage of the text field. The prompt will be removed as soon as any characters are entered into the text field.

您还可以控制何时显示提示:

You can also control when the prompt is displayed:

1. ALWAYS –是否显示文本字段是否具有焦点的提示.
2. FOCUS_GAINED –文本字段获得焦点时显示提示(丢失焦点时隐藏)
3. FOCUS_LOST –当文本字段失去焦点时显示提示(并在获得焦点时隐藏)

1. ALWAYS – the prompt is displayed whether the text field has focus or not.
2. FOCUS_GAINED – the prompt is displayed when the text field gains focus (and is hidden when focus is lost)
3. FOCUS_LOST – the prompt is displayed when the text field loses focus (and is hidden when focus is gained)

这篇关于jTextField中的同构文本.如何?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！