package com.example.testfocus;import com.example.testfocus.OtherActivity.EditTextManagerWatcher;import android.content.Context;import android.text.Editable;import android.text.TextWatcher;import android.util.AttributeSet;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnFocusChangeListener;import android.widget.EditText;import android.widget.LinearLayout;import android.widget.TextView;public class Other extends LinearLayout implements OnFocusChangeListener{private EditText editText1;private EditText editText2;private EditText editText3;private TextView test1;private TextView test2;private TextView test3;public Other(Context context) {super(context);// TODO Auto-generated constructor stub}public Other(Context context, AttributeSet attrs) {super(context, attrs);LayoutInflater.from(context).inflate(R.layout.other, this, true); init();}private void init() {editText1 =(EditText) findViewById(R.id.editText1);editText2 =(EditText) findViewById(R.id.editText2);editText3 =(EditText) findViewById(R.id.editText3);test1 =(TextView) findViewById(R.id.test1);test2 =(TextView) findViewById(R.id.test2);test3 =(TextView) findViewById(R.id.test3);test1.setTextColor(this.getResources().getColor(R.color.other));editText1.setOnFocusChangeListener(this);editText2.setOnFocusChangeListener(this);editText3.setOnFocusChangeListener(this);}/** * 设置焦点位置 */@Overridepublic void onFocusChange(View v, boolean hasFocus) {Editable editable;int len;switch (v.getId()) {case R.id.editText1:if(hasFocus){editText1.addTextChangedListener(new EditTextManagerWatcher(3, editText1)); test1.setTextColor(getResources().getColor(R.color.other));}else{test1.setTextColor(getResources().getColor(R.color.white));}break;case R.id.editText2:if(hasFocus){editText2.addTextChangedListener(new EditTextManagerWatcher(3, editText2));test2.setTextColor(getResources().getColor(R.color.other));}else{test2.setTextColor(getResources().getColor(R.color.white));}break;case R.id.editText3:if(hasFocus){editText3.addTextChangedListener(new EditTextManagerWatcher(3, editText3)); test3.setTextColor(getResources().getColor(R.color.other));}else{test3.setTextColor(getResources().getColor(R.color.white));}break;}}/** * * <P> [功能] 监听输入内容是否超出最大长度，控制输入类型，</P> * <P> [说明] </P> * <P> [备注] </P> * @author nWX212045 * @2014-03-3 上午09:48:27 */public class EditTextManagerWatcher implements TextWatcher {//最大长度private int maxLen;//监听改变的文本框private EditText editText;/** * 构造函数 */public EditTextManagerWatcher(int maxLen,EditText editText){this.maxLen = maxLen;this.editText = editText;}@Overridepublic void onTextChanged(CharSequence ss, int start, int before, int count) {Editable editable = editText.getText();int len = editable.length();//大于最大长度if(len == maxLen){/*int selEndIndex = Selection.getSelectionEnd(editable);String str = editable.toString();//截取新字符串String newStr = str.substring(0, maxLen);editText.setText(newStr);editable = editText.getText();//新字符串长度int newLen = editable.length();//旧光标位置超过字符串长度if(selEndIndex > newLen){selEndIndex = editable.length();}//设置新的光标所在位置Selection.setSelection(editable, selEndIndex);*/if(editText==editText1){editText2.setFocusable(true);editText2.setFocusableInTouchMode(true);editText2.requestFocus();//test1.setTextColor(getResources().getColor(R.color.white));test2.setTextColor(getResources().getColor(R.color.other));}else{if(editText==editText2){editText3.setFocusable(true);editText3.setFocusableInTouchMode(true);editText3.requestFocus();//test2.setTextColor(getResources().getColor(R.color.white));test3.setTextColor(getResources().getColor(R.color.other));}}}else if(len>maxLen){return;}}@Overridepublic void afterTextChanged(Editable s) {try {String temp = s.toString();String tem = temp.substring(temp.length()-1, temp.length());char[] temC = tem.toCharArray();int mid = temC[0];if(mid>=48&&mid<=57){//数字return;}/*if(mid>=65&&mid<=90){//大写字母return;}if(mid>97&&mid<=122){//小写字母return;}*///s.delete(temp.length()-1, temp.length());} catch (Exception e) {// TODO: handle exception}}@Overridepublic void beforeTextChanged(CharSequence s, int start, int count,int after) {}}}
<com.example.testfocus.Other android:layout_width="match_parent" android:layout_height="wrap_content" ></com.example.testfocus.Other>
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