Phone number format in android

Question

In my application, I have a editText which will accept phone number from the user, My target is, as soon as user enters the phone number it should be formatted (Like by appl

Answer 1

This code works in both case delete and edit.

 public class PhoneNumberFormattingTextWatcher implements TextWatcher {
EditText Edt;
int keyDel=0;
public PhoneNumberFormattingTextWatcher(EditText edt){
 Edt =edt;
}
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

}

@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
    Edt.setOnKeyListener(new View.OnKeyListener() {
        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {

            if (keyCode == KeyEvent.KEYCODE_DEL)
                keyDel = 1;
            return false;
        }
    });

    if (keyDel == 0) {
        int len = Edt.getText().length();
        String input=Edt.getText().toString();
        if(len == 4) {
            Edt.setText( input.substring(0,3)+"-"+ input.substring(3) );
            Edt.setSelection(Edt.getText().length());
        }
        if(len == 8) {
            Edt.setText( input.substring(0,7)+"-"+ input.substring(7) );
            Edt.setSelection(Edt.getText().length());
        }
    } else if(keyDel==1){
        int len = Edt.getText().length();
        if(len == 4||len==8) {
            Edt.setText(Edt.getText().delete(Edt.getText().length()-1,Edt.getText().length()) );
            Edt.setSelection(Edt.getText().length());
        }
        keyDel = 0;
    }
}

@Override
public void afterTextChanged(Editable editable) {

}

}

Answer 2

You can use foolowing code it will work.

String number="5129892680";
String formattedNumber = PhoneNumberUtils.formatNumber(number);

Answer 3

Supposing that you wanna format the phone number as per US format.

+1 (###) ###-####,1 (###) ###-####,###-####,###-###-####,011 $

The following will serve your purpose:

phoneEditText.addTextChangedListener(new TextWatcher() {
    private boolean mFormatting; // a flag that prevents stack overflows.
    private int mAfter;

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

    //called before the text is changed...
    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        mAfter = after; // flag to detect backspace.
    }

    @Override
    public void afterTextChanged(Editable s) {
    // Make sure to ignore calls to afterTextChanged caused by the work done below
        if (!mFormatting) {
            mFormatting = true;
            // using US formatting.
            if(mAfter != 0) // in case back space ain't clicked.
                PhoneNumberUtils.formatNumber(
                    s,PhoneNumberUtils.getFormatTypeForLocale(Locale.US));
            mFormatting = false;
        }
    }
});

If you need location specific services, i.e. for each location, you need specific format of that place (refer to this link). If you need only the format you needed, then write a custom function in the place of line in the above code snippet.

PhoneNumberUtils.formatNumber(
    s, PhoneNumberUtils.getFormatTypeForLocale(Locale.US));