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Android手機(jī)聯(lián)系人快速索引(手機(jī)通訊錄)

 更新時(shí)間：2015年12月21日 10:45:12   作者：IT學(xué)無(wú)止境  
最近需要實(shí)現(xiàn)一個(gè)手機(jī)通訊錄的快速索引功能。根據(jù)姓名首字母快速索引功能，下面通過(guò)本篇文章給大家介紹Android手機(jī)聯(lián)系人快速索引(手機(jī)通訊錄)的相關(guān)代碼，需要的朋友參考下

最近需要實(shí)現(xiàn)一個(gè)手機(jī)通訊錄的快速索引功能。根據(jù)姓名首字母快速索引功能。下面是一個(gè)手機(jī)聯(lián)系人快速索引的效果，總體來(lái)說(shuō)代碼不算難，拼音轉(zhuǎn)換的地方略有復(fù)雜。下面上源碼：源碼中有注釋。

下面是效果圖：

MainActivity：

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
/**
 * 這里是主布局
 * @author lxd
 *
 */
public class MainActivity extends Activity {
 private ListView lv_main;
 private FriendAdapter adapter;
 private List<Friend> data = new ArrayList<Friend>();
 private QuickIndexView qiv_main;
 private TextView tv_main_word;
 private Handler handler = new Handler(){
 public void handleMessage(android.os.Message msg) {
  //隱藏word
  tv_main_word.setVisibility(View.GONE);
 }
 };
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 lv_main = (ListView) findViewById(R.id.lv_main);
 qiv_main = (QuickIndexView) findViewById(R.id.qiv_main);
 tv_main_word = (TextView) findViewById(R.id.tv_main_word);
 //設(shè)置監(jiān)聽(tīng)
 qiv_main.setOnIndexChangedListener(new QuickIndexView.OnIndexChangedListener() {
  @Override
  public void onIndexChanged(String word) {
  tv_main_word.setText(word);
  tv_main_word.setVisibility(View.VISIBLE);
  //handler.removeMessages(1);
  //移除未處理的消息
  handler.removeCallbacksAndMessages(null);
  //發(fā)延遲消息
  handler.sendEmptyMessageDelayed(1, 2000);
  //滑動(dòng)listview
  //查找對(duì)應(yīng)的item
  for(int i=0;i<data.size();i++) {
   String fWord = data.get(i).getPinyin().substring(0, 1);
   if(word.equals(fWord)) {
   lv_main.setSelection(i);
   return;
   }
  }
  }
  @Override
  public void onUp() {
  //tv_main_word.setVisibility(View.GONE);
  }
 });
 //顯示列表
 adapter = new FriendAdapter();
 initData();
 lv_main.setAdapter(adapter);
 //lv_main.setSelection(5);
 }
 private void initData() {
 data.add(new Friend("張三"));
 data.add(new Friend("楊九"));
 data.add(new Friend("胡繼群"));
 data.add(new Friend("劉暢"));
 data.add(new Friend("鐘澤興"));
 data.add(new Friend("尹革新"));
 data.add(new Friend("安傳鑫"));
 data.add(new Friend("張騫壬"));
 data.add(new Friend("溫松"));
 data.add(new Friend("李鳳秋"));
 data.add(new Friend("劉甫"));
 data.add(new Friend("婁全超"));
 data.add(new Friend("張猛"));
 data.add(new Friend("王英杰"));
 data.add(new Friend("李振南"));
 data.add(new Friend("孫仁政"));
 data.add(new Friend("唐春雷"));
 data.add(new Friend("牛鵬偉"));
 data.add(new Friend("姜宇航"));
 data.add(new Friend("劉挺"));
 data.add(new Friend("張洪瑞"));
 data.add(new Friend("張建忠"));
 data.add(new Friend("侯亞帥"));
 data.add(new Friend("劉帥"));
 data.add(new Friend("喬競(jìng)飛"));
 data.add(new Friend("徐雨健"));
 data.add(new Friend("吳亮"));
 data.add(new Friend("王兆霖"));
 data.add(new Friend("阿三"));
 Collections.sort(data);
 }
 class FriendAdapter extends BaseAdapter {
 @Override
 public int getCount() {
  return data.size();
 }
 @Override
 public Object getItem(int position) {
  return data.get(position);
 }
 @Override
 public long getItemId(int position) {
  return 0;
 }
 @Override
 public View getView(int position, View convertView, ViewGroup parent) {
  ViewHolder holder = null;
  if(convertView==null) {
  holder = new ViewHolder();
  convertView = View.inflate(MainActivity.this, R.layout.item_main, null);
  holder.wordTV = (TextView) convertView.findViewById(R.id.tv_item_word);
  holder.nameTV = (TextView) convertView.findViewById(R.id.tv_item_name);
  convertView.setTag(holder);//***********?
  } else {
  holder = (ViewHolder) convertView.getTag();
  }
  Friend friend = data.get(position);
  String word = friend.getPinyin().substring(0, 1);
  holder.wordTV.setText(word);
  holder.nameTV.setText(friend.getName());
  //下標(biāo)為0的顯示
  if(position==0) {
  holder.wordTV.setVisibility(View.VISIBLE);
  } else {
  //取出上一個(gè)friend, 并得到的第一個(gè)word
  String preWord = data.get(position-1).getPinyin().substring(0, 1);
  //判斷是否于當(dāng)前行的word是否相同
   //如果相同, 隱藏
  if(word.equals(preWord)) {
   holder.wordTV.setVisibility(View.GONE);
  } else {
   //如果不同, 顯示
   holder.wordTV.setVisibility(View.VISIBLE);
  }
  }
  return convertView;
 }
 class ViewHolder {
  public TextView wordTV;
  public TextView nameTV;
 }
 }
}

主布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 tools:context="${relativePackage}.${activityClass}" >
 <ListView
 android:id="@+id/lv_main"
 android:layout_width="match_parent"
 android:layout_height="match_parent" >
 </ListView>
 <!-- com.atguigu.quickindex.QuickIndexView -->
 <com.atguigu.quickindex.QuickIndexView
 android:id="@+id/qiv_main"
 android:layout_width="40dp"
 android:layout_height="match_parent"
 android:layout_alignParentRight="true"
 android:background="#ffffff" >
 </com.atguigu.quickindex.QuickIndexView>
 <TextView
 android:id="@+id/tv_main_word"
 android:layout_width="100dp"
 android:layout_height="100dp"
 android:layout_centerHorizontal="true"
 android:layout_centerVertical="true"
 android:background="#66666666"
 android:text="A" 
 android:textSize="40sp"
 android:gravity="center"
 android:visibility="gone"/>
</RelativeLayout>

Item：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:orientation="vertical" >
 <TextView
 android:id="@+id/tv_item_word"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:text="A" 
 android:background="#66666666"
 android:textSize="18sp"
 android:padding="5dp"/>
 <TextView
 android:id="@+id/tv_item_name"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:text="某人" 
 android:textSize="18sp"
 android:padding="5dp"/>
</LinearLayout>

自定義View：

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
/**
 * 這里是自定義View
 * @author lxd
 *
 */
public class QuickIndexView extends View {
 private float itemWidth;
 private float itemHeight;
 // private float wordWidth;
 // private float wordHeight;
 private String[] indexArr = { "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 paint;
 public QuickIndexView(Context context, AttributeSet attrs) {
 super(context, attrs);
 paint = new Paint();
 paint.setColor(Color.WHITE);
 paint.setTextSize(16);
 paint.setAntiAlias(true);
 }
 @Override
 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
 super.onMeasure(widthMeasureSpec, heightMeasureSpec);
 itemWidth = this.getMeasuredWidth();
 itemHeight = this.getMeasuredHeight() / 26f;
 }
 @Override
 protected void onDraw(Canvas canvas) {
 //當(dāng)每次觸發(fā)重繪的時(shí)候，就把26個(gè)字母循環(huán)一遍
 for (int i = 0; i < indexArr.length; i++) {
  String word = indexArr[i];
  // 設(shè)置文字的顏色
  if (i == touchIndex) {
  //這里設(shè)置被點(diǎn)擊的字母變化：顏色變灰色、字體變25sp
  paint.setColor(Color.GRAY);
  paint.setTextSize(25);
  } else {
  //其他沒(méi)被點(diǎn)擊的字母，保持原有狀態(tài)：設(shè)置顏色、字體大小為18sp
  paint.setColor(Color.BLACK);
  paint.setTextSize(18);
  }
  // 得到word的寬高
  Rect bounds = new Rect();
  paint.getTextBounds(word, 0, word.length(), bounds);
  //得到字體的寬
  int wordWidth = bounds.width();
  //得到字體的高
  int wordHeight = bounds.height();
  // 計(jì)算word的左上角的坐標(biāo)：字母所在的X坐標(biāo)、Y坐標(biāo)
  float x = itemWidth / 2 - wordWidth / 2;
  float y = itemHeight / 2 + wordHeight / 2 + i * itemHeight;
  // 繪制word
  canvas.drawText(word, x, y, paint);
 }
 }
 // ///////////////////////////////////////////////////////////////////////
 private int touchIndex = -1;// 觸摸的字母的下標(biāo)
 @Override
 public boolean onTouchEvent(MotionEvent event) {
 // 得到事件坐標(biāo)
 float eventY = event.getY();
 switch (event.getAction()) {
 case MotionEvent.ACTION_DOWN:
 case MotionEvent.ACTION_MOVE:
  // 計(jì)算下標(biāo)
  int index = (int) (eventY / itemHeight);
  if (index > 25) {
  index = 25;
  }
  if (index < 0) {
  index = 0;
  }
  // 如果下標(biāo)有改變, 強(qiáng)制重繪
  if (index != touchIndex) {
  // 更新touchIndex
  touchIndex = index;
  // 強(qiáng)制重繪
  invalidate();
  // 通知Activity更新TextView
  if (onIndexChangedListener != null) {
   onIndexChangedListener.onIndexChanged(indexArr[index]);
  }
  }
  break;
 case MotionEvent.ACTION_UP:
  touchIndex = -1;
  // 強(qiáng)制重繪
  invalidate();
  // 通知Activity更新TextView
  if (onIndexChangedListener != null) {
  onIndexChangedListener.onUp();
  }
  break;
 default:
  break;
 }
 return true;// 所有的事件都由當(dāng)前視圖消費(fèi)
 }
 private OnIndexChangedListener onIndexChangedListener;
 /*
 * 設(shè)置監(jiān)聽(tīng)對(duì)象的方法 這個(gè)方法一般是Activity調(diào)用
 */
 public void setOnIndexChangedListener(
  OnIndexChangedListener onIndexChangedListener) {
 this.onIndexChangedListener = onIndexChangedListener;
 }
 interface OnIndexChangedListener {
 // 當(dāng)操作的下標(biāo)改變時(shí)自動(dòng)調(diào)用
 public void onIndexChanged(String word);
 // 當(dāng)up時(shí)調(diào)用
 public void onUp();
 }
}

聯(lián)系人類：

/**
 * 聯(lián)系人類
 * @author lxd
 *
 */
public class Friend implements Comparable<Friend> {
 private String name;
 private String pinyin;
 public Friend(String name) {
 super();
 this.name = name;
 pinyin = PinYinUtils.getPinYin(name);
 }
 public String getName() {
 return name;
 }
 public void setName(String name) {
 this.name = name;
 }
 public String getPinyin() {
 return pinyin;
 }
 public void setPinyin(String pinyin) {
 this.pinyin = pinyin;
 }
 @Override
 public String toString() {
 return "Friend [name=" + name + ", pinyin=" + pinyin + "]";
 }
 @Override
 public int compareTo(Friend another) {
 return this.pinyin.compareTo(another.getPinyin());
 }
}

工具類：用于將漢字轉(zhuǎn)換為拼音

/**
 * 將漢字轉(zhuǎn)換為拼音
 * @author lxd
 *
 */
public class PinYinUtils {
 /**
 * 得到指定漢字的拼音
 * 注意:不應(yīng)該被頻繁調(diào)用，它消耗一定內(nèi)存
 * @param hanzi
 * @return
 */
 public static String getPinYin(String hanzi){
 String pinyin = "";
 HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();//控制轉(zhuǎn)換是否大小寫(xiě)，是否帶音標(biāo)
 format.setCaseType(HanyuPinyinCaseType.UPPERCASE);//大寫(xiě)
 format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
 //由于不能直接對(duì)多個(gè)漢字轉(zhuǎn)換，只能對(duì)單個(gè)漢字轉(zhuǎn)換
 char[] arr = hanzi.toCharArray();
 for (int i = 0; i < arr.length; i++) {
  if(Character.isWhitespace(arr[i]))continue;//如果是空格，則不處理，進(jìn)行下次遍歷
  //漢字是2個(gè)字節(jié)存儲(chǔ)，肯定大于127，所以大于127就可以當(dāng)為漢字轉(zhuǎn)換
  if(arr[i]>127){
  try {
   //由于多音字的存在，單 dan shan
   String[] pinyinArr = PinyinHelper.toHanyuPinyinStringArray(arr[i], format);
   if(pinyinArr!=null){
   pinyin += pinyinArr[0];
   }else {
   pinyin += arr[i];
   }
  } catch (BadHanyuPinyinOutputFormatCombination e) {
   e.printStackTrace();
   //不是正確的漢字
   pinyin += arr[i];
  }
  }else {
  //不是漢字，
  pinyin += arr[i];
  }
 }
 return pinyin;
 }
}

以上代碼是關(guān)于Android手機(jī)聯(lián)系人快速索引(手機(jī)通訊錄)的全部敘述，希望大家喜歡。

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