在TextView中显示的转义字符

Question

In an Android app I'm making, I construct a TextView programmatically and pass a String to setText . The String I'm passing is obtained from another source, and it contains escape characters. Here's an example String:

AxnZt_35\/435\/46\/34

The \\/ should in fact be just / . But the TextView displays the whole thing exactly as in the above example.

The code I'm using to construct the TextView :

TextView textView = new TextView(context);
textView.setText(text);
textView.setTextColor(color);
textView.setTypeface(Typeface.DEFAULT_BOLD);
textView.setTextSize(14);

So my question is, how can I not display the extra \\ ? I just want the above example displayed as:

AxnZt_35/435/46/34

Thanks.

EDIT

The String I provided above is just an example. There might be other characters in the String. For example, the character / or \\ by itself is perfectly valid. The problem is that / is displayed as \\/ .

Answer 1

The answer from @Numan1617 is close, but for escape characters and replaceAll() , you have to escape them twice.

See This Post .

So, the correct code in this case would be:

    String str = "AxnZt_35\\/435\\/46\\/34";

    System.out.println(str); //prints AxnZt_35\/435\/46\/34

    String s2 = str.replaceAll("\\\\/", "/"); 

    System.out.println(s2); //prints AxnZt_35/435/46/34

Answer 2

您必须使用Strings replaceAll方法设置文本之前，替换所有\\的出现：

textView.setText(text.replaceAll("\\", ""));

Answer 3

Run this as plain Java

public class Klass{

    public static void main(String[] args) {
        System.out.println(new String("\\/"));
        System.out.println(new String("\\/").replaceAll("/", ""));
        System.out.println(new String("\\/").replaceAll("\\/", ""));
        System.out.println(new String("\\/").replaceAll("\\\\/", ""));
    }

}

The regex for \\ is "\\\\": in regex one pair of \\ is equal to one \\ in the new String()