package com.hwtt.android.oa.tool;import android.content.Context;import android.text.InputFilter;import android.text.Spanned;import android.widget.EditText;import android.widget.Toast;/*** 字符串处理* @author Administrator**/public class StringUtils {/*** 提示输入内容超过规定长度 * @param context* @param editText* @param max_length* @param err_msg*/public static void lengthFilter( final Context context, EditText editText,final int max_length, final String err_msg){InputFilter[] filters = new InputFilter[1];filters[0] = new InputFilter.LengthFilter(max_length){@Overridepublic CharSequence filter(CharSequence source, int start, int end,Spanned dest, int dstart, int dend) {// TODO Auto-generated method stub//获取字符个数(一个中文算2个字符)int destLen = StringUtils.getCharacterNum(dest.toString());int sourceLen = StringUtils.getCharacterNum(source.toString());if(destLen + sourceLen > max_length){Toast.makeText(context, err_msg,Toast.LENGTH_SHORT).show();return "";}return source;}};editText.setFilters(filters);}/*** * @param content* @return*/public static int getCharacterNum(String content){if(content.equals("")||null == content){return 0;}else {return content.length()+getChineseNum(content);}}/*** 计算字符串的中文长度* @param s* @return*/public static int getChineseNum(String s){int num = 0;char[] myChar = s.toCharArray();for(int i=0;i<myChar.length;i++){if((char)(byte)myChar[i] != myChar[i]){num++;}}return num;}}
//超过长度提醒StringUtils.lengthFilter(AddHolidayApplyActivity.this,etReason, Constants.MAX_INPUT_LENGTG,getString(R.string.max_length_holiday_warm));
如果觉得《android edittext 限制文本框输入的长度和提示信息》对你有帮助，请点赞、收藏，并留下你的观点哦！
