得到的TextView的字符宽度 [英] get width of textview in characters

问题描述

我觉得这是相反的 TextView的在人物方面设置宽度

I think this is the opposite of Set width of TextView in terms of characters

我在这里我展示了一些报告的数据一个TextView。我使用的是等宽TypefaceSpan为它的一部分，因为我想列排队。

I have a TextView where I'm showing some report data. I use a monospace TypefaceSpan for a portion of it because I want columns to line up.

我用我的测试Android设备找出多少列，我可以适应，但Android模拟器似乎有一个确切的少列，这使得事情包装在一个丑陋的方式在纵向模式下。

I used my test Android device to figure out how many columns I could fit, but the Android emulator seems to have exactly one less column, which makes things wrap in an ugly way in portrait mode.

有没有办法找出多少个字应该适合在1号线？

Is there a way to find out how many characters should fit on 1 line?

推荐答案

答案是使用你的TextView的Paint对象的breakText（）。这里是一个示例，

The answer would be to use the breakText() of your textView's Paint Object. Here is a Sample ,

int totalCharstoFit= textView.getPaint().breakText(fullString,  0, fullString.length(), 
 true, textView.getWidth(), null);

现在 totalCharstoFit 包含准确的字符，可以配入一行。而现在你可以让你满弦的子字符串，并将其追加到像这样的TextView，

Now totalCharstoFit contains the exact characters that can be fit into one line. And now you can make a sub string of your full string and append it to the TextView like this,

String subString=fullString.substring(0,totalCharstoFit);
textView.append(substring);

和计算剩余的字符串，你可以做到这一点，

And to calculate the remaining string, you can do this,

fullString=fullString.substring(subString.length(),fullString.length());

现在满code，

在while循环做到这一点，

Do this in a while loop,

while(fullstirng.length>0)
{
int totalCharstoFit= textView.getPaint().breakText(fullString,  0, fullString.length(), 
     true, textView.getWidth(), null);
 String subString=fullString.substring(0,totalCharstoFit);
    textView.append(substring);
 fullString=fullString.substring(subString.length(),fullString.length());

}

这篇关于得到的TextView的字符宽度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！