Question

我想自动放一个＆＃34; - ＆＃34;在我的EditText中输入6个字母后，我希望用户可以在＆＃34; - ＆＃34;之后继续写。（我希望用户写道：1234562，它在EditText中显示为123456-2。）

但我不知道如何做到这一点，如果有可能的话。如果你能帮助我，谢谢

Answer 1

添加textwatcher。然后使用以下代码：

@Override
public void afterTextChanged(Editable text) {     


    if (text.length() == 6) {
        text.append('-');
    }


}

您还可以在if语句中使用多个条件，如：

 if (text.length() == 3 || text.length() == 6) {
        text.append('-');
    }

Answer 2

EditText editText = (EditText) findViewById(R.id.search);

editText.addTextChangedListener(new TextWatcher() {          
                    @Override
                    public void onTextChanged(CharSequence s, int start, int before, int count) {                                   


                    }                       
                    @Override
                    public void beforeTextChanged(CharSequence s, int start, int count,
                            int after) {
                        // TODO Auto-generated method stub                          
                    }                       
                    @Override
                    public void afterTextChanged(Editable text) {
                        // TODO Auto-generated method stub                          
                          if (text.length() == 6) {
                          text.append('-');
    }  
                    }
                });

Answer 3

EditText editText = (EditText) findViewById(R.id.editText1);
editText.addTextChangedListener(new TextWatcher() {
    @Override
    public void afterTextChanged(Editable s) { 
        String text = editText.getText().toString(); 
        if(text.length() == 6){
            editText.append("-");
        }
    }

    @Override
    public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {

    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {

    }
});

Answer 4

you can also delete characters with this:

text.addTextChangedListener(new TextWatcher() {
        int first = 0;
        int second;

        @Override
        public void afterTextChanged(Editable s) {
            second = first;
            first = s.length();

            if(text.length()==6 && first>second){
                text.append("-");
            }
        }

Answer 5

我使用发现的here代码来回答这个问题，它对我来说非常有效，我真的希望这可以对其他人有所帮助。这是针对此特定问题修改的代码：

def to_representation(self, instance):
    data = super(UserSerializer, self).to_representation(instance)
    userprofile = data.pop('userprofile')
    for key, val in userprofile.items():
        data.update({key: val})
    return data

Answer 6

这是我对 Kotlin 的看法：

type DimensionMemberIntersection string

type Account struct {
    ID         string 
    Name       string 
    Reference  string 
    MembersIntersection []DimensionMemberIntersection
    // This assumes the underlying type of DimensionMemberIntersection is string
}

account := Account{}

for _, col := range account.MembersIntersection {
    if !db.Migrator().HasColumn(&Account{}, col) {
        db.Migrator().AddColumn(&Account{}, col)
    }
}

在6个字母后自动在EditText中添加字符

6 个答案: