Find \n in Edit Text android

Question

I want to find \n in Edit Text then do something; I don't want to give user error when he use enter in edit text For example in my app nobody allows to write this sentence sentence: "Hello \n world"

I used this code, it worked for characters but didn't work for \n code:

private boolean findn(String t){
    for (int i=0;i<t.length();i++){
        if (t.charAt(i)=='\n'){
            return true;
        }
    }
    return false;
}

http://stackoverflow.com/questions/2163045/how-to-remove-line-breaks-from-a-file-in-java — ecle, Jun 28 '15 at 18:11

score 1 · Answer 1 · answered Jun 28 '15 at 12:01

1

You can use the contains method to determine whether a String contains a given character sequence, like so:

return t.contains("\n");

answered Jun 28 '15 at 12:01

Sam Estep

12,974
2
37
75

Thanks I use contain method like it et.gettext.ToString.contains"/n"; but it doesn't work – Mohammadhossein.Saeb.Shabani Jun 28 '15 at 12:10

score 0 · Accepted Answer · answered Jun 30 '15 at 12:35

0

I fixed this problem with change digits in xml

        android:digits="@string/myAlphaNumeric"

answered Jun 30 '15 at 12:35

Mohammadhossein.Saeb.Shabani

83
1
10

Find \n in Edit Text android

2 Answers2