I've shared my ScrollTextView at
http://bear-polka.blogspot.com/2009/01/scrolltextview-scrolling-textview-for.html
Comments are welcomed
On Jan 6, 8:36 pm, Xiongzh <zx.zhangxi...@gmail.com> wrote:
> The TextPaint worked well to measure the text length in pixel.
> I've implemented my ScrollTextView successfully.
> Here's my codes to calculate the scrolling length.
> Just for your information.
>
> private void calculateScrollingLen() {
> TextPaint tp = getPaint();
> Rect rect = new Rect();
> String strTxt = getText().toString();
> tp.getTextBounds(strTxt, 0, strTxt.length(), rect);
> mScrollingLen = rect.width() + getWidth();
> rect = null;
> }
>
> Thank you!
> And your website looks sharp!
>
> On 1月6日, 下午3时11分, "心蓝" <kyowxf2...@gmail.com> wrote:
>
> > U can use TextPaint class ,and the method in this class is measureText, then
> > get one char width!
> > Any question u can post topic inhttp://androidos.cc/bbs,
> > 2009/1/6 Xiongzh <zx.zhangxi...@gmail.com>
>
> > > Hi all,
>
> > > I'll like to know how to calculate the actual pixels a text occupies
> > > in the screen from its font size.
>
> > > Say, my font size of the text in TextView is 20.5px.
> > > It doesn't mean that every character of the text occupies 20.5px in
> > > the screen, does it?
>
> > > I'm inheriting android.widget.TextView to implement a TextView which
> > > text can be scrolled automatically. Just as the behavior of the HTML
> > > <marquee/>.
>
> > > I need to know the actual pixels the text occupied to determine how
> > > far I shall scroll the text.
> > > However the getTextSize() * getText().length() is much longer than the
> > > actual length of the text, so I can't make the text re-displayed on
> > > time.
>
> > > Thank you in advance for helping me.
>
> > > BR
> > > xion...@beijing, China
>
> > > dirtybea...@hotmail.com
>
> > --
> > Welcome to my site about GPhone:http://51gphone.cn
> > I am a GFans！！欢迎你来到我的GPhone网站！！http://51gphone.cn
>
>
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