设置背景和字体颜色RichTextField，文本字段 [英] Setting background and font colors for RichTextField, TextField

问题描述

我们如何设置在RichTextField的背景和字体颜色？我试图覆盖除了已经描述的涂料（）方法<一href=\"http://stackoverflow.com/questions/1426081/creating-custom-layouts-in-blackberry/1428106#1428106\">here,但是当我在向下滚动时，背景被擦除或重置为白色背景

How do we set the background and font colors in a RichTextField? I tried to override the paint() method in addition to what has been described here, but when I scroll down in, the background gets erased or reset to a white background

推荐答案

在RIM 4.6和更大的可使用背景：

In RIM 4.6 and greater you can use Background:

class ExRichTextField extends RichTextField {

	int mTextColor;

	public ExRichTextField(String text, int bgColor, int textColor) {
		super(text);
		mTextColor = textColor;
		Background background = BackgroundFactory
				.createSolidBackground(bgColor);
		setBackground(background);
	}

	protected void paint(Graphics graphics) {
		graphics.setColor(mTextColor);
		super.paint(graphics);
	}
}

有关RIM 4.5和更低的使用Paint事件来绘制背景youreself：

For RIM 4.5 and lower use paint event to draw background youreself:

class ExRichTextField extends RichTextField {

	int mTextColor;
	int mBgColor;

	public ExRichTextField(String text, int bgColor, int textColor) {
		super(text);
		mTextColor = textColor;
		mBgColor = bgColor;
	}

	protected void paint(Graphics graphics) {
		graphics.clear();
		graphics.setColor(mBgColor);
		graphics.fillRect(0, 0, getWidth(), getHeight());
		graphics.setColor(mTextColor);
		super.paint(graphics);
	}
}

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