从android的edittext框中获取XXX-XXX-XXXX格式的电话号码

问题描述

|| 你好 我正在编写一个Android，其中用户在编辑文本框中输入电话号码。 我希望数字采用xxx-xxx-xxxx的形式，这意味着\'-\'应该在用户输入前3个字母和另一个\'-\'之后自动出现 我用

EditText anum= (EditText)findViewById(R.id.altnum);
        anum.addTextChangedListener(new PhoneNumberFormattingTextWatcher());

但是只有在输入所有数字后，它才会格式化。我希望在用户输入数据时进行更改，例如按123时会自动出现连字符 请告诉我该怎么做。 感谢您 此致 钦妮·克里希纳·科萨帕利     

解决方法

一种选择是实现自己的InputFilter。 您可以在这里使用我的答案：按“。”很多次（在键入时验证EditText中的ip地址），这里：如何设置Edittext视图仅允许两个数字值和两个十进制值（如##。##），以获取有关如何在键入时解析文本的示例。 如果希望破折号自动显示，则需要将其添加到过滤方法的返回中     ,最近，我有同样的要求。我尝试使用TextWatcher。在这里分享，希望以后有人需要。

public class PhoneNumberTextWatcher implements TextWatcher {

private static final String TAG = PhoneNumberTextWatcher.class
        .getSimpleName();
private EditText edTxt;
private boolean isDelete;

public PhoneNumberTextWatcher(EditText edTxtPhone) {
    this.edTxt = edTxtPhone;
    edTxt.setOnKeyListener(new OnKeyListener() {

        @Override
        public boolean onKey(View v,int keyCode,KeyEvent event) {
            if (keyCode == KeyEvent.KEYCODE_DEL) {
                isDelete = true;
            }
            return false;
        }
    });
}

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

public void beforeTextChanged(CharSequence s,int count,int after) {
}

public void afterTextChanged(Editable s) {

    if (isDelete) {
        isDelete = false;
        return;
    }
    String val = s.toString();
    String a = \"\";
    String b = \"\";
    String c = \"\";
    if (val != null && val.length() > 0) {
        val = val.replace(\"-\",\"\");
        if (val.length() >= 3) {
            a = val.substring(0,3);
        } else if (val.length() < 3) {
            a = val.substring(0,val.length());
        }
        if (val.length() >= 6) {
            b = val.substring(3,6);
            c = val.substring(6,val.length());
        } else if (val.length() > 3 && val.length() < 6) {
            b = val.substring(3,val.length());
        }
        StringBuffer stringBuffer = new StringBuffer();
        if (a != null && a.length() > 0) {
            stringBuffer.append(a);
            if (a.length() == 3) {
                stringBuffer.append(\"-\");
            }
        }
        if (b != null && b.length() > 0) {
            stringBuffer.append(b);
            if (b.length() == 3) {
                stringBuffer.append(\"-\");
            }
        }
        if (c != null && c.length() > 0) {
            stringBuffer.append(c);
        }
        edTxt.removeTextChangedListener(this);
        edTxt.setText(stringBuffer.toString());
        edTxt.setSelection(edTxt.getText().toString().length());
        edTxt.addTextChangedListener(this);
    } else {
        edTxt.removeTextChangedListener(this);
        edTxt.setText(\"\");
        edTxt.addTextChangedListener(this);
    }

}
 }

谢谢 JRH     ,以下代码可以添加和删除场景，但是逻辑还需要更长的时间：

public class PhoneNumberTextWatcher implements TextWatcher {

private static final String TAG = \"PhoneNumberTextWatcher\";
private EditText editText;

public PhoneNumberTextWatcher(EditText edTxtPhone) {
    this.editText = edTxtPhone;
}

public void onTextChanged(CharSequence s,int cursorPosition,int count) {

    if(before == 0 && count == 1){  //Entering values

        String val = s.toString();
        String a = \"\";
        String b = \"\";
        String c = \"\";
        if (val != null && val.length() > 0) {
            val = val.replace(\"-\",\"\");
            if (val.length() >= 3) {
                a = val.substring(0,3);
            } else if (val.length() < 3) {
                a = val.substring(0,val.length());
            }
            if (val.length() >= 6) {
                b = val.substring(3,6);
                c = val.substring(6,val.length());
            } else if (val.length() > 3 && val.length() < 6) {
                b = val.substring(3,val.length());
            }
            StringBuffer stringBuffer = new StringBuffer();
            if (a != null && a.length() > 0) {
                stringBuffer.append(a);

            }
            if (b != null && b.length() > 0) {
                stringBuffer.append(\"-\");
                stringBuffer.append(b);

            }
            if (c != null && c.length() > 0) {
                stringBuffer.append(\"-\");
                stringBuffer.append(c);
            }
            editText.removeTextChangedListener(this);
            editText.setText(stringBuffer.toString());
            if(cursorPosition == 3 || cursorPosition == 7){
                cursorPosition = cursorPosition+2;
            }else{
                cursorPosition = cursorPosition+1;
            }
            if(cursorPosition <= editText.getText().toString().length()) {
                editText.setSelection(cursorPosition);
            }else{
                editText.setSelection(editText.getText().toString().length());
            }
            editText.addTextChangedListener(this);
        } else {
            editText.removeTextChangedListener(this);
            editText.setText(\"\");
            editText.addTextChangedListener(this);
        }

    }

    if(before == 1 && count == 0){  //Deleting values

        String val = s.toString();
        String a = \"\";
        String b = \"\";
        String c = \"\";

        if (val != null && val.length() > 0) {
            val = val.replace(\"-\",\"\");
            if(cursorPosition == 3){
                val = removeCharAt(val,cursorPosition-1,s.toString().length()-1);
            }else if(cursorPosition == 7){
                val = removeCharAt(val,cursorPosition-2,s.toString().length()-2);
            }
            if (val.length() >= 3) {
                a = val.substring(0,val.length());
            }
            StringBuffer stringBuffer = new StringBuffer();
            if (a != null && a.length() > 0) {
                stringBuffer.append(a);

            }
            if (b != null && b.length() > 0) {
                stringBuffer.append(\"-\");
                stringBuffer.append(b);

            }
            if (c != null && c.length() > 0) {
                stringBuffer.append(\"-\");
                stringBuffer.append(c);
            }
            editText.removeTextChangedListener(this);
            editText.setText(stringBuffer.toString());
            if(cursorPosition == 3 || cursorPosition == 7){
                cursorPosition = cursorPosition-1;
            }
            if(cursorPosition <= editText.getText().toString().length()) {
                editText.setSelection(cursorPosition);
            }else{
                editText.setSelection(editText.getText().toString().length());
            }
            editText.addTextChangedListener(this);
        } else {
            editText.removeTextChangedListener(this);
            editText.setText(\"\");
            editText.addTextChangedListener(this);
        }

    }



}

public void beforeTextChanged(CharSequence s,int after) {
}

public void afterTextChanged(Editable s) {


}

public static String removeCharAt(String s,int pos,int length) {

    String value = \"\";
    if(length > pos){
        value = s.substring(pos + 1);
    }
    return s.substring(0,pos)+value ;
}
}