怎么在Android中利用EditText对内容进行分割输入

public class ContentWithSpaceEditText extends EditText {  public static final int TYPE_PHONE = 0;  public static final int TYPE_CARD = 1;  public static final int TYPE_IDCARD = 2;  private int maxLength = 100;  private int contentType;  private int start, count, before;  private String digits;  public ContentWithSpaceEditText(Context context) {    this(context, null);  }  public ContentWithSpaceEditText(Context context, AttributeSet attrs) {    super(context, attrs);    parseAttributeSet(context, attrs);  }  public ContentWithSpaceEditText(Context context, AttributeSet attrs, int defStyleAttr) {    super(context, attrs, defStyleAttr);    parseAttributeSet(context, attrs);  }  private void parseAttributeSet(Context context, AttributeSet attrs) {    TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.ContentWithSpaceEditText, 0, 0);    contentType = ta.getInt(R.styleable.ContentWithSpaceEditText_type, 0);    ta.recycle();    initType();    setSingleLine();    addTextChangedListener(watcher);  }  private void initType() {    if (contentType == TYPE_PHONE) {      maxLength = 13;      digits = "0123456789 ";      setInputType(InputType.TYPE_CLASS_NUMBER);    } else if (contentType == TYPE_CARD) {      maxLength = 23;      digits = "0123456789 ";      setInputType(InputType.TYPE_CLASS_NUMBER);    } else if (contentType == TYPE_IDCARD) {      maxLength = 21;      digits = "0123456789xX ";      setInputType(InputType.TYPE_CLASS_TEXT);    }    setFilters(new InputFilter[]{new InputFilter.LengthFilter(maxLength)});  }  @Override  public void setInputType(int type) {    super.setInputType(type);    // setKeyListener要在setInputType后面调用，否则无效    if (!TextUtils.isEmpty(digits)) {      setKeyListener(DigitsKeyListener.getInstance(digits));    }  }  private TextWatcher watcher = new TextWatcher() {    @Override    public void beforeTextChanged(CharSequence s, int start, int count, int after) {    }    @Override    public void onTextChanged(CharSequence s, int start, int before, int count) {      ContentWithSpaceEditText.this.start = start;      ContentWithSpaceEditText.this.before = before;      ContentWithSpaceEditText.this.count = count;    }    @Override    public void afterTextChanged(Editable s) {      if (s == null) {        return;      }      //判断是否是在中间输入，需要重新计算      boolean isMiddle = (start + count) < (s.length());      //在末尾输入时，是否需要加入空格      boolean isNeedSpace = false;      if (!isMiddle && isSpace(s.length())) {        isNeedSpace = true;      }      if (isMiddle || isNeedSpace || count > 1) {        String newStr = s.toString();        newStr = newStr.replace(" ", "");        StringBuilder sb = new StringBuilder();        int spaceCount = 0;        for (int i = 0; i < newStr.length(); i++) {          sb.append(newStr.substring(i, i + 1));          //如果当前输入的字符下一位为空格(i+1+1+spaceCount)，因为i是从0开始计算的，所以一开始的时候需要先加1          if (isSpace(i + 2 + spaceCount)) {            sb.append(" ");            spaceCount += 1;          }        }        removeTextChangedListener(watcher);        s.replace(0, s.length(), sb);        //如果是在末尾的话,或者加入的字符个数大于零的话（输入或者粘贴）        if (!isMiddle || count > 1) {          setSelection(s.length() <= maxLength &#63; s.length() : maxLength);        } else if (isMiddle) {          //如果是删除          if (count == 0) {            //如果删除时，光标停留在空格的前面，光标则要往前移一位            if (isSpace(start - before + 1)) {              setSelection((start - before) > 0 &#63; start - before : 0);            } else {              setSelection((start - before + 1) > s.length() &#63; s.length() : (start - before + 1));            }          }          //如果是增加          else {            if (isSpace(start - before + count)) {              setSelection((start + count - before + 1) < s.length() &#63; (start + count - before + 1) : s.length());            } else {              setSelection(start + count - before);            }          }        }        addTextChangedListener(watcher);      }    }  };  private boolean isSpace(int length) {    if (contentType == TYPE_PHONE) {      return isSpacePhone(length);    } else if (contentType == TYPE_CARD) {      return isSpaceCard(length);    } else if (contentType == TYPE_IDCARD) {      return isSpaceIDCard(length);    }    return false;  }  private boolean isSpacePhone(int length) {    return length >= 4 && (length == 4 || (length + 1) % 5 == 0);  }  private boolean isSpaceCard(int length) {    return length % 5 == 0;  }  private boolean isSpaceIDCard(int length) {    return length > 6 && (length == 7 || (length - 2) % 5 == 0);  }  public void setContentType(int contentType) {    this.contentType = contentType;    initType();  }  public String getTextWithoutSpace() {    return super.getText().toString().replace(" ", "");  }    public boolean isContentCheck() {    String text = getTextWithoutSpace();    if (contentType == TYPE_PHONE) {      if (TextUtils.isEmpty(text)) {        ToastUtil.showText(UIUtils.getString(R.string.phone_number_not_empty));      } else if (text.length() < 11) {        ToastUtil.showText(UIUtils.getString(R.string.phone_number_incorrect_length));      } else {        return true;      }    } else if (contentType == TYPE_CARD) {      if (TextUtils.isEmpty(text)) {        ToastUtil.showText(UIUtils.getString(R.string.bank_card_not_empty));      } else if (text.length() < 16) {        ToastUtil.showText(UIUtils.getString(R.string.bank_card_incorrect_length));      } else {        return true;      }    } else if (contentType == TYPE_IDCARD) {      if (TextUtils.isEmpty(text)) {        ToastUtil.showText(UIUtils.getString(R.string.identity_number_not_empty));      } else if (text.length() < 18) {        ToastUtil.showText(UIUtils.getString(R.string.identity_number_incorrect_length));      } else {        return true;      }    }    return false;  }}