Android输入框格式化Edittexthelp（有项目可下载

Screenshot_2019-05-23-18-45-44.png
Android银行卡、手机号、身份证格式化。不支持从中间删除，如果有人愿意完善一下，麻烦联系我，感谢。下载代码​​​​​​​​​​​​​​

 /************ 输入框-全局变量 *********************/
    private SpaceTextWatcher[] asEditTexts = new SpaceTextWatcher[3];
    private EditText[] editTexts = new EditText[3];
    private int beforlong, bhlong = 0;

editTexts[0] = etCardNum;//银行卡
        editTexts[1] = etPhone;//手机号
        editTexts[2] = etIdCardNo;//身份证
        asEditTexts[0] = new SpaceTextWatcher(editTexts[0], 23);
        asEditTexts[0].setSpaceType(SpaceTextWatcher.SpaceType.bankCardNumberType);
        asEditTexts[1] = new SpaceTextWatcher(editTexts[1], 13);
        asEditTexts[1].setSpaceType(SpaceTextWatcher.SpaceType.mobilePhoneNumberType);
        asEditTexts[2] = new SpaceTextWatcher(editTexts[2], 21);
        asEditTexts[2].setSpaceType(SpaceTextWatcher.SpaceType.IDCardNumberType);

public class SpaceTextWatcher implements TextWatcher {
    /**
     * 改变之前text空格数量
     */
    int spaceNumberA = 0;
    /**
     * text改变之前的长度
     */
    private int beforeTextLength = 0;
    private int onTextLength = 0;
    private boolean isChanged = false;
    private StringBuffer buffer = new StringBuffer();
    private EditText editText;
    /**
     * text最大长度限制
     */
    private int maxLenght;
    private SpaceType spaceType;
    /**
     * 记录光标的位置
     */
    private int location = 0;
    /**
     * 是否是主动设置text
     */
    private boolean isSetText = false;

    public SpaceTextWatcher(EditText editText, int maxLenght) {
        this.editText = editText;
        this.maxLenght = maxLenght;
        if (editText == null) {
            new NullPointerException("editText is null");
        }
        spaceType = SpaceType.defaultType;
//        if(maxLenght==48){
//            spaceType = SpaceType.bankCardNumberType;
//        }else if(maxLenght==13){
//            spaceType = SpaceType.mobilePhoneNumberType;
//        }else if(maxLenght == 21){
//            spaceType = SpaceType.IDCardNumberType;
//        }
        editText.setFilters(new InputFilter[]{new InputFilter.LengthFilter(
                maxLenght)});
        editText.addTextChangedListener(this);
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count,
                                  int after) {
        beforeTextLength = s.length();
        if (buffer.length() > 0) {
            buffer.delete(0, buffer.length());
        }
        spaceNumberA = 0;
        for (int i = 0; i < s.length(); i++) {
            if (s.charAt(i) == ' ') {
                spaceNumberA++;
            }
        }
    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
        onTextLength = s.length();

        buffer.append(s.toString());
        if (onTextLength == beforeTextLength || onTextLength > maxLenght
                || isChanged) {
            isChanged = false;
            return;
        }
        isChanged = true;
    }

    @Override
    public void afterTextChanged(Editable s) {
        if (isChanged) {
            location = editText.getSelectionEnd();
//            ToastUtils.showToastCenter("=="+editText.getSelectionEnd());
            int index = 0;
            while (index < buffer.length()) { // 删掉所有空格
                if (buffer.charAt(index) == ' ') {
                    buffer.deleteCharAt(index);
                } else {
                    index++;
                }
            }

            index = 0;
            int spaceNumberB = 0;
            while (index < buffer.length()) { // 插入所有空格
                spaceNumberB = insertSpace(index, spaceNumberB);
                index++;
            }

            String str = buffer.toString();

            // 下面是计算光位置的
            if (spaceNumberB > spaceNumberA) {
//                ToastUtils.showToastCenter("插入空格了");
                location += (spaceNumberB - spaceNumberA);
                spaceNumberA = spaceNumberB;
            }
            if (isSetText) {//ss
                location = str.length();
                isSetText = false;
            } else if (location > str.length()) {
                location = str.length();
            } else if (location < 0) {
                location = 0;
            }
            updateContext(s, str);
            isChanged = false;
        }
    }

    /**
     * 更新编辑框中的内容
     *
     * @param editable
     * @param values
     */
    private void updateContext(Editable editable, String values) {
        if (spaceType == SpaceType.IDCardNumberType||spaceType == SpaceType.mobilePhoneNumberType||spaceType == SpaceType.bankCardNumberType) {
            editable.replace(0, editable.length(), values);
        } else {
            editText.setText(values);
            try {
                editText.setSelection(location);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * 根据类型插入空格
     *
     * @param index
     * @param spaceNumberAfter
     * @return
     * @see [类、类#方法、类#成员]
     */
    private int insertSpace(int index, int spaceNumberAfter) {
        switch (spaceType) {
            case defaultType:// 相隔四位空格
                if (index >= 4
                        && (index % (4 * (spaceNumberAfter + 1)) == spaceNumberAfter)) {
                    buffer.insert(index, ' ');
                    spaceNumberAfter++;
                }
                break;
            case bankCardNumberType:
                if (index >= 4
                        && (index % (4 * (spaceNumberAfter + 1)) == spaceNumberAfter)) {
                    buffer.insert(index, ' ');
                    spaceNumberAfter++;
                }
                break;
            case mobilePhoneNumberType:
                if (index == 3
                        || ((index > 7) && ((index - 3) % (4 * spaceNumberAfter) == spaceNumberAfter))) {
                    buffer.insert(index, ' ');
                    spaceNumberAfter++;
                }
                break;
            case IDCardNumberType:
                if (index == 6
                        || ((index > 10) && ((index - 6) % (4 * spaceNumberAfter) == spaceNumberAfter))) {
                    buffer.insert(index, ' ');
                    spaceNumberAfter++;
                }
                break;
            default:
                if (index > 3
                        && (index % (4 * (spaceNumberAfter + 1)) == spaceNumberAfter)) {
                    buffer.insert(index, ' ');
                    spaceNumberAfter++;
                }
                break;
        }
        return spaceNumberAfter;
    }

    /***
     * 计算需要的空格数
     *
     * @return 返回添加空格后的字符串长度
     * @see [类、类#方法、类#成员]
     */
    private int computeSpaceCount(CharSequence charSequence) {
        buffer.delete(0, buffer.length());
        buffer.append(charSequence.toString());
        int index = 0;
        int spaceNumberB = 0;
        while (index < buffer.length()) { // 插入所有空格
            spaceNumberB = insertSpace(index, spaceNumberB);
            index++;
        }
        buffer.delete(0, buffer.length());
        return index;
    }

    /**
     * 设置空格类型
     *
     * @param spaceType
     * @see [类、类#方法、类#成员]
     */
    public void setSpaceType(SpaceType spaceType) {
        this.spaceType = spaceType;
        if (this.spaceType == SpaceType.IDCardNumberType) {
            editText.setInputType(InputType.TYPE_CLASS_TEXT);
        }else if (this.spaceType == SpaceType.bankCardNumberType) {
            editText.setInputType(InputType.TYPE_CLASS_TEXT);
        }else if (this.spaceType == SpaceType.mobilePhoneNumberType) {
            editText.setInputType(InputType.TYPE_CLASS_PHONE);
        }
    }

    /**
     * 设置输入字符
     *
     * @param charSequence
     * @return 返回设置成功失败
     * @see [类、类#方法、类#成员]
     */
    public boolean setText(CharSequence charSequence) {
        if (editText != null && !TextUtils.isEmpty(charSequence) && computeSpaceCount(charSequence) <= maxLenght) {
            isSetText = true;
            editText.removeTextChangedListener(this);
            editText.setText(charSequence);
            editText.addTextChangedListener(this);
            return true;
        }
        return false;
    }

    /**
     * 得到输入的字符串去空格后的字符串
     *
     * @return
     * @see [类、类#方法、类#成员]
     */
    public String getTextNotSpace() {
        if (editText != null) {
            return delSpace(editText.getText().toString());
        }
        return null;
    }

    /**
     * 得到输入的字符串去空格后的长度
     *
     * @return
     * @see [类、类#方法、类#成员]
     */
    public int getLenghtNotSpace() {
        if (editText != null) {
            return getTextNotSpace().length();
        }
        return 0;
    }

    /**
     * 得到空格数量
     *
     * @return
     * @see [类、类#方法、类#成员]
     */
    public int getSpaceCount() {
        return spaceNumberA;
    }

    /**
     * 去掉字符空格，换行符等
     *
     * @param str
     * @return
     * @see [类、类#方法、类#成员]
     */
    private String delSpace(String str) {
        if (str != null) {
            str = str.replaceAll("\r", "");
            str = str.replaceAll("\n", "");
            str = str.replace(" ", "");
        }
        return str;
    }

    /**
     * 空格类型
     *
     * @author 江钰锋 0152
     * @version [版本号, 2015年4月21日]
     * @see [相关类/方法]
     * @since [产品/模块版本]
     */
    public enum SpaceType {
        /**
         * 默认类型
         */
        defaultType,
        /**
         * 银行卡类型
         */
        bankCardNumberType,
        /**
         * 手机号类型
         */
        mobilePhoneNumberType,
        /**
         * 身份证类型
         */
        IDCardNumberType;
    }

}