Android实现通讯录功能，排序+字母索引
需要在libs中导入pinyin4j.jar包
Activity布局：
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
android:layout_width="match_parent"
android:layout_height="match_parent">
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
android:id="@+id/side_bar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:paddingRight="10dp"
android:textColor="@color/colorAccent"
android:textSize="15sp" />
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MainActivity
package com.example.e.chengshiliebiao; import android.content.Intent; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import java.util.ArrayList; import java.util.Collections; import se.emilsjolander.stickylistheaders.StickyListHeadersListView; public class MainActivity extends AppCompatActivity { private StickyListHeadersListView listView; private SideBar sideBar; private ArrayListlist; private EditText chaxun; private Button tianjia; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); chaxun = (EditText) findViewById(R.id.shousuo); tianjia = (Button) findViewById(R.id.tianjia); initView(); initData(); String sousuo = chaxun.getText().toString(); tianjia.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(MainActivity.this, TianJiaActivity.class); startActivity(intent); } }); } private void initView() { listView = (StickyListHeadersListView) findViewById(R.id.list); sideBar = (SideBar) findViewById(R.id.side_bar); sideBar.setOnStrSelectCallBack(new SideBar.ISideBarSelectCallBack() { @Override public void onSelectStr(int index, String selectStr) { for (int i = 0; i < list.size(); i++) { if (selectStr.equalsIgnoreCase(list.get(i).getFirstLetter())) { listView.setSelection(i); // 选择到首字母出现的位置 return; } } } }); } private void initData() { list = new ArrayList<>(); list.add(new User("亳州")); // 亳[bó]属于不常见的二级汉字 list.add(new User("蚌埠")); list.add(new User("合肥")); list.add(new User("北京")); list.add(new User("天津")); list.add(new User("苏州")); list.add(new User("宿州")); list.add(new User("淮北")); list.add(new User("淮南")); list.add(new User("黄山")); list.add(new User("阜阳")); list.add(new User("滁州")); list.add(new User("马鞍山")); list.add(new User("芜湖")); list.add(new User("铜陵")); list.add(new User("安庆")); list.add(new User("六安")); list.add(new User("池州")); list.add(new User("巢湖")); list.add(new User("宣城")); list.add(new User("福州")); list.add(new User("南平")); list.add(new User("界首")); list.add(new User("明光")); list.add(new User("天长")); list.add(new User("桐城")); list.add(new User("宁国")); list.add(new User("厦门")); list.add(new User("三明")); list.add(new User("莆田")); list.add(new User("泉州")); list.add(new User("怀远")); list.add(new User("漳州")); list.add(new User("龙岩")); list.add(new User("兰州")); list.add(new User("贵阳")); list.add(new User("石家庄")); list.add(new User("12345")); list.add(new User("54321")); list.add(new User("哈尔滨")); list.add(new User("郑州")); list.add(new User("武汉")); list.add(new User("长沙")); list.add(new User("长春")); list.add(new User("南京")); list.add(new User("南昌")); list.add(new User("沈阳")); list.add(new User("大连")); Collections.sort(list); // 对list进行排序，需要让User实现Comparable接口重写compareTo方法 SortAdapter adapter = new SortAdapter(this, list); listView.setAdapter(adapter); } }
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package com.example.e.chengshiliebiao; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.TextView; import java.util.List; import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter; /** * ListView适配 * 提供一个方法来获得 保存首字母和该首字母城市的第一个出现的位置HashMap * 通过记录前一个首字母与当前首字母是否相同，如果不同加入HashMap中同时显示该字母 * @author acer * */ public class SortAdapter extends BaseAdapter implements StickyListHeadersAdapter { private Listlist = null; private Context mContext; public SortAdapter(Context mContext, List list) { this.mContext = mContext; this.list = list; } public int getCount() { return this.list.size(); } public Object getItem(int position) { return list.get(position); } public long getItemId(int position) { return position; } public View getView(final int position, View view, ViewGroup arg2) { ViewHolder viewHolder; final User user = list.get(position); if (view == null) { viewHolder = new ViewHolder(); view = LayoutInflater.from(mContext).inflate(R.layout.item_city, null); viewHolder.name = (TextView) view.findViewById(R.id.name); view.setTag(viewHolder); } else { viewHolder = (ViewHolder) view.getTag(); } //根据position获取首字母作为目录catalog String catalog = list.get(position).getFirstLetter(); viewHolder.name.setText(this.list.get(position).getName()); return view; } @Override public View getHeaderView(int position, View convertView, ViewGroup parent) { Holder holder; if (convertView==null){ convertView=View.inflate(mContext,R.layout.item,null); holder=new Holder(); holder.title= (TextView) convertView.findViewById(R.id.catalog_sort); convertView.setTag(holder); }else{ holder= (Holder) convertView.getTag(); } holder.title.setText(PinYinUtils.getFirstLetter(list.get(position).getName())); return convertView; } @Override public long getHeaderId(int position) { return PinYinUtils.getFirstLetter(list.get(position).getName()).charAt(0); } final static class ViewHolder { TextView name; } class Holder{ TextView title; } }
2.顶端字母布局：
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="vertical" >
android:id="@+id/catalog_sort"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#E0E0E0"
android:textColor="#454545"
android:textSize="20sp"
android:padding="10dp"/>
3.城市名布局
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="vertical" >
android:id="@+id/name"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:textColor="#336598"
android:textSize="16sp"
android:padding="10dp"/>
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PinYinUtils
package com.example.e.chengshiliebiao; import android.text.TextUtils; import net.sourceforge.pinyin4j.PinyinHelper; import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType; import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat; import net.sourceforge.pinyin4j.format.HanyuPinyinToneType; import net.sourceforge.pinyin4j.format.HanyuPinyinVCharType; import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination; /** * Created by e on 2017/6/24. */ public class PinYinUtils { /** * 返回首字母，大写 * @param str * @return */ public static String getFirstLetter(String str) { if (TextUtils.isEmpty(str)) { return ""; } // 得到一个字符串的拼音的大写 String pinyinStr = getPinyin(str).toUpperCase(); // 取拼音字符串的第一个字母 // String first = pinyinStr.substring(0, 1).toLowerCase(); // if (first.matches("[a-z]")) { // // } else { // // } char firstCahr = pinyinStr.charAt(0); // 不是A-Z字母 if (firstCahr > 90 || firstCahr < 65) { return "#"; }else{ // 代表是A-Z return String.valueOf(firstCahr); } } /** * 得到一个字符串的拼音读音 * * @param chineseStr * @return */ public static String getPinyin(String chineseStr) { StringBuffer sb = new StringBuffer(); // 将汉字拆分成一个个的char char[] chars = chineseStr.toCharArray(); // 遍历汉字的每一个char for (int i = 0; i < chars.length; i++) { try { // 汉字的所有读音放在一个pinyins数组 String[] pinyins = PinyinHelper.toHanyuPinyinStringArray(chars[i], getDefaultFormat()); if (pinyins == null) { sb.append(chars[i]); } else { sb.append(pinyins[0]); } } catch (BadHanyuPinyinOutputFormatCombination badHanyuPinyinOutputFormatCombination) { badHanyuPinyinOutputFormatCombination.printStackTrace(); } } return sb.toString(); } /** * 设置默认的输出格式 * * @return */ public static HanyuPinyinOutputFormat getDefaultFormat() { HanyuPinyinOutputFormat outputFormat = new HanyuPinyinOutputFormat(); // 去除声调 outputFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE); // 小写 outputFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE); // 包含Unicode特殊字符 outputFormat.setVCharType(HanyuPinyinVCharType.WITH_U_UNICODE); return outputFormat; } }-------------------------------------------------------------------------
SideBar
package com.example.e.chengshiliebiao; import android.content.Context; import android.content.res.TypedArray; import android.graphics.Canvas; import android.graphics.Paint; import android.util.AttributeSet; import android.view.MotionEvent; import android.widget.TextView; /** * Created by e on 2017/6/23. */ public class SideBar extends TextView { private String[] letters = new String[]{"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "#"}; private Paint textPaint; private Paint bigTextPaint; private Paint scaleTextPaint; private Canvas canvas; private int itemH; private int w; private int h; /** * 普通情况下字体大小 */ float singleTextH; /** * 缩放离原始的宽度 */ private float scaleWidth; /** * 滑动的Y */ private float eventY = 0; /** * 缩放的倍数 */ private int scaleSize = 1; /** * 缩放个数item，即开口大小 */ private int scaleItemCount = 6; private ISideBarSelectCallBack callBack; public SideBar(Context context) { this(context, null); } public SideBar(Context context, AttributeSet attrs) { this(context, attrs, 0); } public SideBar(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); init(attrs); } private void init(AttributeSet attrs) { if (attrs != null) { TypedArray ta = getContext().obtainStyledAttributes(attrs, R.styleable.SideBar); scaleSize = ta.getInteger(R.styleable.SideBar_scaleSize, 1); scaleItemCount = ta.getInteger(R.styleable.SideBar_scaleItemCount, 6); scaleWidth = ta.getDimensionPixelSize(R.styleable.SideBar_scaleWidth, dp(100)); ta.recycle(); } textPaint = new Paint(Paint.ANTI_ALIAS_FLAG); textPaint.setColor(getCurrentTextColor()); textPaint.setTextSize(getTextSize()); textPaint.setTextAlign(Paint.Align.CENTER); bigTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG); bigTextPaint.setColor(getCurrentTextColor()); bigTextPaint.setTextSize(getTextSize() * (scaleSize + 3)); bigTextPaint.setTextAlign(Paint.Align.CENTER); scaleTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG); scaleTextPaint.setColor(getCurrentTextColor()); scaleTextPaint.setTextSize(getTextSize() * (scaleSize + 1)); scaleTextPaint.setTextAlign(Paint.Align.CENTER); } public void setDataResource(String[] data) { letters = data; invalidate(); } public void setOnStrSelectCallBack(ISideBarSelectCallBack callBack) { this.callBack = callBack; } /** * 设置字体缩放比例 * * @param scale */ public void setScaleSize(int scale) { scaleSize = scale; invalidate(); } /** * 设置缩放字体的个数，即开口大小 * * @param scaleItemCount */ public void setScaleItemCount(int scaleItemCount) { this.scaleItemCount = scaleItemCount; invalidate(); } private int dp(int px) { final float scale = getContext().getResources().getDisplayMetrics().density; return (int) (px * scale + 0.5f); } @Override public boolean onTouchEvent(MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: case MotionEvent.ACTION_MOVE: if (event.getX() > (w - getPaddingRight() - singleTextH - 10)) { eventY = event.getY(); invalidate(); return true; } else { eventY = 0; invalidate(); break; } case MotionEvent.ACTION_CANCEL: eventY = 0; invalidate(); return true; case MotionEvent.ACTION_UP: if (event.getX() > (w - getPaddingRight() - singleTextH - 10)) { eventY = 0; invalidate(); return true; } else break; } return super.onTouchEvent(event); } @Override protected void onDraw(Canvas canvas) { this.canvas = canvas; DrawView(eventY); } private void DrawView(float y) { int currentSelectIndex = -1; if (y != 0) { for (int i = 0; i < letters.length; i++) { float currentItemY = itemH * i; float nextItemY = itemH * (i + 1); if (y >= currentItemY && y < nextItemY) { currentSelectIndex = i; if (callBack != null) { callBack.onSelectStr(currentSelectIndex, letters[i]); } //画大的字母 Paint.FontMetrics fontMetrics = bigTextPaint.getFontMetrics(); float bigTextSize = fontMetrics.descent - fontMetrics.ascent; canvas.drawText(letters[i], w - getPaddingRight() - scaleWidth - bigTextSize, singleTextH + itemH * i, bigTextPaint); } } } drawLetters(y, currentSelectIndex); } private void drawLetters(float y, int index) { //第一次进来没有缩放情况，默认画原图 if (index == -1) { w = getMeasuredWidth(); h = getMeasuredHeight(); itemH = h / letters.length; Paint.FontMetrics fontMetrics = textPaint.getFontMetrics(); singleTextH = fontMetrics.descent - fontMetrics.ascent; for (int i = 0; i < letters.length; i++) { canvas.drawText(letters[i], w - getPaddingRight(), singleTextH + itemH * i, textPaint); } //触摸的时候画缩放图 } else { //遍历所有字母 for (int i = 0; i < letters.length; i++) { //要画的字母的起始Y坐标 float currentItemToDrawY = singleTextH + itemH * i; float centerItemToDrawY; if (index < i) centerItemToDrawY = singleTextH + itemH * (index + scaleItemCount); else centerItemToDrawY = singleTextH + itemH * (index - scaleItemCount); float delta = 1 - Math.abs((y - currentItemToDrawY) / (centerItemToDrawY - currentItemToDrawY)); float maxRightX = w - getPaddingRight(); //如果大于0，表明在y坐标上方 scaleTextPaint.setTextSize(getTextSize() + getTextSize() * delta); float drawX = maxRightX - scaleWidth * delta; //超出边界直接花在边界上 if (drawX > maxRightX) canvas.drawText(letters[i], maxRightX, singleTextH + itemH * i, textPaint); else canvas.drawText(letters[i], drawX, singleTextH + itemH * i, scaleTextPaint); } } } public interface ISideBarSelectCallBack { void onSelectStr(int index, String selectStr); } }----------------------------------------------------------------
User
package com.example.e.chengshiliebiao; /** * Created by e on 2017/6/23. */ public class User implements Comparable{ private String name; // 姓名 private String pinyin; // 姓名对应的拼音 private String firstLetter; // 拼音的首字母 public User() { } public User(String name) { this.name = name; pinyin = PinYinUtils.getPinyin(name); // 根据姓名获取拼音 firstLetter = pinyin.substring(0, 1).toUpperCase(); // 获取拼音首字母并转成大写 if (!firstLetter.matches("[A-Z]")) { // 如果不在A-Z中则默认为“#” firstLetter = "#"; } } public String getName() { return name; } public String getPinyin() { return pinyin; } public String getFirstLetter() { return firstLetter; } @Override public int compareTo(User another) { if (firstLetter.equals("#") && !another.getFirstLetter().equals("#")) { return 1; } else if (!firstLetter.equals("#") && another.getFirstLetter().equals("#")){ return -1; } else { return pinyin.compareToIgnoreCase(another.getPinyin()); } } }