在 Eclipse 中向 TextView 添加空格以使每列固定长度
我使用的文本文件存储 3 列数据，每列数据的长度各不相同。
这是我迄今为止尝试过的以下代码。我希望每一列都左对齐。由于某种原因，如果我使用星号，它会起作用，而如果我尝试手动插入空格，则它不会起作用。
（行从我的文本文件中读取 3 个单词）
尝试#2：
while((line = buf.readLine())!= null){
StringTokenizer st = new StringTokenizer(line);
int length = 12;
a = st.nextToken();
while (a.length() <= length)
{
a = a + "*";
}
b = st.nextToken();
while (b.length() <= length)
{
b = b + "*";
}
c = st.nextToken();
text.append(a + b + c + '\n');
}
这是我最初的尝试，但这也不起作用： text.append(String.format("%-15s\t %-10s\t %-5s\t \n", a, b, c));
任何想法将不胜感激。
I am using a text file that stores 3 columns of data, each having varying length.
This is the following code I have tried so far. I want each column to be left justified. For some reason it works if I use an asterisk and not if I try to manually insert a whitespace.
(line is reading in 3 words from my text file)
Attempt #2:
while((line = buf.readLine())!= null){
StringTokenizer st = new StringTokenizer(line);
int length = 12;
a = st.nextToken();
while (a.length() <= length)
{
a = a + "*";
}
b = st.nextToken();
while (b.length() <= length)
{
b = b + "*";
}
c = st.nextToken();
text.append(a + b + c + '\n');
}
This was my original attempt but this did not work either:
text.append(String.format("%-15s\t %-10s\t %-5s\t \n", a, b, c));
Any ideas would be greatly appreciated.
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这里的关键是不要仅对三列使用单个 TextView。您希望为每一列使用不同的 TextView，并单独控制每个 TextView 的格式。您使用什么类型的布局？如果您切换到表格布局，应该很容易左边证明你想要什么。如果您的文件长度可变，请使用 ListView每行有三个不同的文本视图，然后左对齐每个文本视图。
The key here is not to use just a single TextView for your three columns. You want to use a different TextView for each column and the control the formatting of each TextView individually. What type of layout are you using? If you switch to a table layout, it should be easy to left justify what ever you want. If your file will have a variable length, use a ListView which has three different text views in each row and then left justify each textview.