Android EditText 格式化手机号 xxx xxxx xxxx
16lz
2021-01-23
一晚上的工作成果。。。不废话，直接上代码！
layout文件
public class TextWatcherUtil { public interface Callback{ void callback(); } public static void addPhoneNumberTextWatcher(final EditText editText, final Callback callback) { TextWatcher textWatcher = new TextWatcher() { private int start = 0; private int before = 0; private int count = 0; @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { this.start = start; this.before = before; this.count = count; } @Override public void afterTextChanged(Editable s) { try { filterPhoneNumber(s); } catch (Exception e) { } } public void filterPhoneNumber(Editable s) throws Exception { String temp = s.toString(); int selection = editText.getSelectionStart(); char[] arr = temp.toCharArray(); boolean isMatch = true; if (count > 0) { for (int i = start; i < start + count; i++) { int c = arr[i]; if (!(c == 32 || (c >= 48 && c <= 57))) {//不是空格 并且 不是数字 isMatch = false; break; } } } if (isMatch) { boolean needReset = false; if (arr.length >= 4) { if (arr[3] != 32) { needReset = true; } } if (!needReset && arr.length >= 9) { if (arr[8] != 32) { needReset = true; } } if (!needReset) { for (int i = 0; i < arr.length; i++) { if (arr[i] == 32) { if (i != 3 && i != 8) { needReset = true; break; } } } } if (needReset) { temp = temp.replace(" ", ""); if (count > 0) { if (temp.length() >= 7) { s.clear(); s.append(temp.substring(0, 3) + " " + temp.substring(3, 7) + " " + temp.substring(7, temp.length())); editText.setSelection(selection - 1); } else if (temp.length() >= 3) { s.clear(); s.append(temp.substring(0, 3) + " " + temp.substring(3, temp.length())); editText.setSelection(selection - 1); } } else if (before > 0) { if (selection == 3) { s.clear(); if (temp.length() >= 8) { s.append(temp.substring(0, 2) + temp.substring(3, 4) + " " + temp.substring(4, 7) + " " + temp.substring(7, temp.length())); } else if (temp.length() >= 4) { s.append(temp.substring(0, 2) + temp.substring(3, 4) + " " + temp.substring(4, temp.length())); } editText.setSelection(selection - 1); } else if (selection == 8) { s.clear(); if (temp.length() >= 8) { s.append(temp.substring(0, 3) + " " + temp.substring(3, 6) + " " + temp.substring(7, temp.length())); } editText.setSelection(selection - 1); } else if (temp.length() >= 7) { s.clear(); s.append(temp.substring(0, 3) + " " + temp.substring(3, 7) + " " + temp.substring(7, temp.length())); editText.setSelection(selection); } else if (temp.length() >= 3) { s.clear(); s.append(temp.substring(0, 3) + " " + temp.substring(3, temp.length())); editText.setSelection(selection); } } } else { if (count > 0) { if (temp.length() == 3 || temp.length() == 8) { s.append(" "); } } else if (before > 0) { if (temp.length() == 3 || temp.length() == 8) { s.delete(temp.length() - 1, temp.length()); } } } if (callback != null) callback.callback(); } else { s.delete(start, start + count); } } }; editText.addTextChangedListener(textWatcher); } public static void addPasswordTextWatcher(final EditText editText, final Callback callback) { TextWatcher textWatcher = new TextWatcher() { private int start = 0; private int count = 0; @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { this.start = start; this.count = count; } @Override public void afterTextChanged(Editable s) { try { String temp = s.toString(); char[] arr = temp.toCharArray(); boolean isMatch = true; if (count > 0) { for (int i = start; i < start + count; i++) { int c = arr[i]; if (!((c >= 48 && c <= 57) || (c >= 65 && c <= 90) || (c >= 97 && c <= 122))) {//不是数字 && 不是小写字母 && 不是大写字母 isMatch = false; break; } } } if (isMatch) { if (callback != null) callback.callback(); } else { s.delete(start, start + count); } } catch (Exception e) { } } }; editText.addTextChangedListener(textWatcher); }}工具类里一个是验证手机号，一个是验证密码
使用方法如下
TextWatcherUtil.addPhoneNumberTextWatcher(phoneNumberEditText, new TextWatcherUtil.Callback() { @Override public void callback() { //todo edittext changed后回调 }});更多相关文章
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