EditText输入自动空格，EditText输入空格,package cn.j

EditText输入自动空格，EditText输入空格,package cn.j

package cn.juzhong.util;import android.text.Editable;import android.text.Selection;import android.text.TextWatcher;import android.widget.EditText;public class EditTextUtil implements TextWatcher{    private int beforeTextLength = 0; //输入前的长度    private int onTextLength = 0; //文字的长度    private boolean isChanged = false;     private int location = 0;//记录光标的位置    private char[] tempChar;     private StringBuffer buffer = new StringBuffer();     private int blankNumber = 0;      private EditText editText;    public EditTextUtil(EditText text){        editText = text;    }    @Override    public void afterTextChanged(Editable arg0) {        // TODO Auto-generated method stub        if(isChanged){            location = editText.getSelectionEnd();            int index = 0;            while (index < buffer.length()) {                if (buffer.charAt(index) == ' ') {                    buffer.deleteCharAt(index);                } else {                    index++;                }            }            index = 0;            int konggeNumberC = 0;            while (index < buffer.length()) {                if ((index == 4 || index == 9 || index == 14 || index == 19)) {                    buffer.insert(index, ' ');                    konggeNumberC++;                }                index++;            }            if (konggeNumberC > blankNumber) {                location += (konggeNumberC - blankNumber);            }            tempChar = new char[buffer.length()];            buffer.getChars(0, buffer.length(), tempChar, 0);            String str = buffer.toString();            if (location > str.length()) {                location = str.length();            } else if (location < 0) {                location = 0;            }            editText.setText(str);            Editable etable = editText.getText();            Selection.setSelection(etable, location);            isChanged = false;        }    }    @Override    public void beforeTextChanged(CharSequence text, int arg1, int arg2,            int arg3) {        // TODO Auto-generated method stub        beforeTextLength = text.length();        if(buffer.length() > 0){            buffer.delete(0, buffer.length());        }        blankNumber = 0;        for(int i = 0;i < text.length();i ++){            if(text.charAt(i) == ' '){                blankNumber ++;            }        }    }    @Override    public void onTextChanged(CharSequence text, int arg1, int arg2, int arg3) {        // TODO Auto-generated method stub        onTextLength = text.length();        buffer.append(text.toString());        if(onTextLength == beforeTextLength || onTextLength <= 3                || isChanged){            isChanged = false;            return;        }        isChanged = true;    }}

 在代码中调用

bankNumberEditText.addTextChangedListener(new EditTextUtil(bankNumberEditText));