如何在android中更改删除线的颜色? [英] How to change color of a strikethrough in android?

问题描述

我是安卓新手.我尝试使用以下代码进行删除线.但是我怎样才能改变删除线的颜色(目前是黑色，我想要红色).我知道它可能更简单，但即使在谷歌搜索之后我也找不到它.请帮忙.提前致谢.

I am new to android. I tried the below code for strikethrough. But how can I change the color of the strikethrough(currently it is BLACK, I want it RED). I know its probably simpler but I could not find it even after googling much. Please help.Thanks in advance.

txtview.setText("Hello");
txtview.setPaintFlags(txtview.getPaintFlags()|Paint.STRIKE_THRU_TEXT_FLAG);

推荐答案

我认为这对于简单的 textview 是不可能的，所以您必须执行以下操作:-

I think this is not possible for simple textview so you have to do the following:-

1.通过扩展View类创建自定义TextView

2.在 XML 布局中声明这个自定义文本视图，就像我们对 TextView 所做的一样.

最后编写一个 onDraw() 方法，如下所示.

And at last write an onDraw() method like following.

    @Override
       protected void onDraw(Canvas canvas) {
        Paint paint = new Paint();
        paint.setColor(strikeThroughColor);
        paint.setStyle(Paint.Style.FILL); 
        paint.setStrikeThruText(true);
        paint.setStrokeWidth(strikeThroughWidth);
        paint.setFlags(Paint.ANTI_ALIAS_FLAG);
        super.onDraw(canvas);
        float width = getWidth();
        float heigh = getHeight();
        canvas.drawLine(width/10, heigh/10, (width-width/10),(heigh-heigh/10), paint);
}

希望对你有帮助.

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