通讯录导航栏源码:

1.activity

 package com.anna.contact.activity;

 import java.util.ArrayList;

 import java.util.HashMap;

 import java.util.List;

 import com.anna.contact.R;

 import com.anna.contact.adapter.MyFriendsAdapter;

 import com.anna.contact.entity.Friend;

 import com.anna.contact.view.LetterlistViewForFriend;

 import com.anna.contact.view.LetterlistViewForFriend.OnTouchingLetterChangedListener;

 import com.iflytek.voiceads.AdError;

 import com.iflytek.voiceads.AdKeys;

 import com.iflytek.voiceads.IFLYAdListener;

 import com.iflytek.voiceads.IFLYAdSize;

 import com.iflytek.voiceads.IFLYFullScreenAd;

 import android.app.Activity;

 import android.content.Context;

 import android.graphics.PixelFormat;

 import android.os.Bundle;

 import android.os.Handler;

 import android.view.LayoutInflater;

 import android.view.View;

 import android.view.Window;

 import android.view.WindowManager;

 import android.view.ViewGroup.LayoutParams;

 import android.widget.AdapterView;

 import android.widget.AdapterView.OnItemClickListener;

 import android.widget.ListView;

 import android.widget.TextView;

 import android.widget.Toast;

 public class MyFriendsActivity extends Activity {

     private IFLYFullScreenAd ad;

     ListView lv_friend;

     String[] strings;// 存放存在的汉语拼音首字母

     List<Friend> friends;

     //右边字母导航

     LetterlistViewForFriend letterlistViewForFriend;

     HashMap<String, Integer> alphaIndex;// 存放存在的汉语拼音首字母和与之对应的列表位置

     TextView overlay;

     Handler handler;

     OverlayThread overlayThread; // 隐藏字母提示框

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         // TODO Auto-generated method stub

         super.onCreate(savedInstanceState);

         requestWindowFeature(Window.FEATURE_NO_TITLE);

         createAd();

         setContentView(R.layout.vip_myactivity_myfriend);

         overlayThread = new OverlayThread();

         handler = new Handler();

         /* 初始化右边导航 */

         initOverlay();

         /* 初始化通讯录 */

         initData();

         lv_friend = (ListView) this.findViewById(R.id.vip_myfriend_lv_1);

         lv_friend.setAdapter(new MyFriendsAdapter(MyFriendsActivity.this,

                 friends));

         lv_friend.setOnItemClickListener(new OnItemClickListener() {

             @Override

             public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,

                     long arg3) {

                 // TODO Auto-generated method stub

             }

         });

         letterlistViewForFriend=(LetterlistViewForFriend)this.findViewById(R.id.LetterlistViewForFriend);

         letterlistViewForFriend.setOnTouchingLetterChangedListener(new OnTouchingLetterChangedListener() {

             @Override

             public void onTouchingLetterChanged(String s) {

                 // TODO Auto-generated method stub

                 System.out.println(s);

                 int position = alphaIndex.get(s);

                 if (alphaIndex.get(s) != null) {

                     lv_friend.setSelection(position);

                 }

                 overlay.setText(s);

                 overlay.setVisibility(View.VISIBLE);

                 handler.removeCallbacks(overlayThread);

                 // 延迟一秒后执行，让overlay为不可见

                 handler.postDelayed(overlayThread, 1500);

             }

         });

     }

     // 初始化汉语拼音首字母弹出提示框

     private void initOverlay() {

         LayoutInflater inflater = LayoutInflater.from(this);

         overlay = (TextView) inflater.inflate(R.layout.overlay_layout, null);

         overlay.setVisibility(View.INVISIBLE);

         WindowManager.LayoutParams lp = new WindowManager.LayoutParams(

                 LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT,

                 WindowManager.LayoutParams.TYPE_APPLICATION,

                 WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE

                         | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,

                 PixelFormat.TRANSLUCENT);

         WindowManager windowManager = (WindowManager) this

                 .getSystemService(Context.WINDOW_SERVICE);

         windowManager.addView(overlay, lp);

     }

     public class OverlayThread implements Runnable {

         @Override

         public void run() {

             // TODO Auto-generated method stub

             overlay.setVisibility(View.INVISIBLE);

         }

     }

     private void initData() {

         List<String> list_data = new ArrayList<String>();

         list_data.add("Alex");

         list_data.add("Anna");

         list_data.add("Blic");

         list_data.add("Blpha");

         list_data.add("Clex");

         list_data.add("Clic");

         list_data.add("Clpha");

         list_data.add("Clex");

         list_data.add("Dlic");

         list_data.add("Dlpha");

         list_data.add("Dace");

         list_data.add("Dlpha");

         list_data.add("Elic");

         list_data.add("Elpha");

         list_data.add("Eace");

         list_data.add("Elpha");

         list_data.add("Elea");

         list_data.add("Flpha");

         list_data.add("Flea");

         list_data.add("Glpha");

         list_data.add("Gace");

         list_data.add("Glpha");

         list_data.add("Hlea");

         list_data.add("Ilpha");

         list_data.add("Jace");

         list_data.add("Jlpha");

         list_data.add("Jenney");

         list_data.add("Kitty");

         list_data.add("Klpha");

         list_data.add("Kath");

         list_data.add("Lace");

         list_data.add("Llpha");

         list_data.add("Moon");

         list_data.add("Merry");

         list_data.add("Nice");

         list_data.add("Object");

         list_data.add("Purplegrape");

         list_data.add("Queen");

         list_data.add("Qearl");

         list_data.add("Rose");

         list_data.add("Rain");

         list_data.add("Sunny");

         list_data.add("Sweet");

         list_data.add("Tiger");

         list_data.add("Ternence");

         list_data.add("Uea");

         list_data.add("Uea");

         list_data.add("Wendy");

         list_data.add("Winnie");

         list_data.add("Vivian");

         list_data.add("Vicky");

         list_data.add("Vanessa");

         list_data.add("Yvette");

         list_data.add("Yolanda");

         list_data.add("Yvonne");

         list_data.add("Zoey");

         friends = new ArrayList<Friend>();

         alphaIndex = new HashMap<String, Integer>();

         for (int i = 0; i < list_data.size(); i++) {

             Friend friend = new Friend();

             friend.setName(list_data.get(i));

             friends.add(friend);

         }

         strings = new String[friends.size()];

         for (int i = 0; i < friends.size(); i++) {

             char letter = friends.get(i).getName().substring(0, 1).charAt(0);

             String currentLetter = (letter + "").toUpperCase();

             // 上一个汉语拼音首字母，如果不存在为""

             String lastLetter = (i - 1) > 0 ? (friends.get(i - 1).getName()

                     .substring(0, 1).charAt(0) + "").toUpperCase() : "";

             if (!lastLetter.equals(currentLetter)) {

                 alphaIndex.put(currentLetter, i);

                 strings[i]=currentLetter;

             }

         }

     }

     private void createAd() {

         ad = IFLYFullScreenAd.createFullScreenAd(this,

                 "FDDE8F2023143C2E8702E80CE88B97CA");

         ad.setAdSize(IFLYAdSize.FULLSCREEN);

         ad.setParameter(AdKeys.SHOW_TIME_FULLSCREEN, "6000");

         ad.setParameter(AdKeys.DOWNLOAD_ALERT, "true");

         ad.loadAd(new IFLYAdListener() {

             @Override

             public void onAdReceive() {

                 ad.showAd();

             }

             @Override

             public void onAdFailed(AdError arg0) {

                 Toast.makeText(

                         getApplicationContext(),

                         arg0.getErrorCode() + "****"

                                 + arg0.getErrorDescription(), 0).show();

             }

             @Override

             public void onAdClose() {

             }

             @Override

             public void onAdClick() {

             }

             @Override

             public void onAdExposure() {

                 // TODO Auto-generated method stub

             }

         });

     }

     @Override

     protected void onDestroy() {

         // TODO Auto-generated method stub

         super.onDestroy();

         WindowManager windowManager = (WindowManager) this

                 .getSystemService(Context.WINDOW_SERVICE);

         windowManager.removeView(overlay);

     }

 }

2.Adapter

 package com.anna.contact.adapter;

 import java.util.List;

 import com.anna.contact.R;

 import com.anna.contact.entity.Friend;

 import android.content.Context;

 import android.view.LayoutInflater;

 import android.view.View;

 import android.view.ViewGroup;

 import android.widget.BaseAdapter;

 import android.widget.ImageView;

 import android.widget.TextView;

 public class MyFriendsAdapter extends BaseAdapter {

     LayoutInflater inflater;

     List<Friend> list;

     public MyFriendsAdapter(Context context, List<Friend> list) {

         inflater = LayoutInflater.from(context);

         this.list = list;

     }

     @Override

     public int getCount() {

         // TODO Auto-generated method stub

         return list.size();

     }

     @Override

     public Object getItem(int position) {

         // TODO Auto-generated method stub

         return list.get(position);

     }

     @Override

     public long getItemId(int position) {

         // TODO Auto-generated method stub

         return position;

     }

     @SuppressWarnings("null")

     @Override

     public View getView(int position, View convertView, ViewGroup parent) {

         // TODO Auto-generated method stub

         viewHolder holder;

         if (convertView == null) {

             convertView = inflater.inflate(

                     R.layout.vip_myactivity_myfriend_item, null);

             holder = new viewHolder();

             holder.vip_friend_letter = (TextView) convertView

                     .findViewById(R.id.vip_friend_letter);

             holder.vip_friend_name = (TextView) convertView

                     .findViewById(R.id.vip_friend_item_name);

             convertView.setTag(holder);

         } else {

             holder = (viewHolder) convertView.getTag();

         }

         holder.vip_friend_name.setText(list.get(position).getName());

         char letter = list.get(position).getName().substring(0, 1).charAt(0);

         String currentLetter = (letter + "").toUpperCase();

         String lastLetter = (position - 1) > 0 ? (list.get(position - 1)

                 .getName().substring(0, 1).charAt(0) + "") : "";

         if (!lastLetter.equals(currentLetter)) {

             holder.vip_friend_letter.setText(currentLetter);

             holder.vip_friend_letter.setVisibility(View.VISIBLE);

         } else {

             holder.vip_friend_letter.setVisibility(View.GONE);

         }

         return convertView;

     }

     public class viewHolder {

         TextView vip_friend_letter;

         ImageView vip_friend_logo;

         TextView vip_friend_name;

     }

 }

3.entity

 package com.anna.contact.entity;

 import android.widget.ImageView;

 public class Friend {

     private String name;

     private String letter;

     private ImageView logo;

     public String getName() {

         return name;

     }

     public void setName(String name) {

         this.name = name;

     }

     public String getLetter() {

         return letter;

     }

     public void setLetter(String letter) {

         this.letter = letter;

     }

     public ImageView getLogo() {

         return logo;

     }

     public void setLogo(ImageView logo) {

         this.logo = logo;

     }

 }

4.view

 package com.anna.contact.view;

 import android.content.Context;

 import android.graphics.Canvas;

 import android.graphics.Color;

 import android.graphics.Paint;

 import android.graphics.Typeface;

 import android.util.AttributeSet;

 import android.view.MotionEvent;

 import android.view.View;

 public class LetterlistViewForFriend extends View {

     public LetterlistViewForFriend(Context context, AttributeSet attrs)

     {

         super(context, attrs);

         // TODO Auto-generated constructor stub

     }

     public LetterlistViewForFriend(Context context)

     {

         super(context);

     }

     public LetterlistViewForFriend(Context context, AttributeSet attrs, int defStyle)

     {

         super(context, attrs, defStyle);

     }

     OnTouchingLetterChangedListener onTouchingLetterChangedListener;

     String[] b =

     {"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" };

     int choose = -1;

     Paint paint = new Paint();

     boolean showBkg = false;

     @Override

     protected void onDraw(Canvas canvas)

     {

         super.onDraw(canvas);

         if (showBkg)

         {

             canvas.drawColor(Color.parseColor("#40000000"));

         }

         int height = getHeight();

         int width = getWidth();

         int singleHeight = height / b.length;

         for (int i = 0; i < b.length; i++)

         {

             //paint.setTextSize(19) ;

             paint.setColor(Color.BLACK);

             paint.setTypeface(Typeface.DEFAULT_BOLD);

             paint.setAntiAlias(true);

             if (i == choose)

             {

                 paint.setColor(Color.parseColor("#3399ff"));

                 paint.setFakeBoldText(true);

             }

             float xPos = width / 2 - paint.measureText(b[i]) / 2;

             float yPos = singleHeight * i + singleHeight;

             canvas.drawText(b[i], xPos, yPos, paint);

             paint.reset();

         }

     }

     @Override

     public boolean dispatchTouchEvent(MotionEvent event)

     {

         final int action = event.getAction();

         final float y = event.getY();

         final int oldChoose = choose;

         final OnTouchingLetterChangedListener listener = onTouchingLetterChangedListener;

         final int c = (int) (y / getHeight() * b.length);

         switch (action)

         {

         case MotionEvent.ACTION_DOWN:

             showBkg = true;

             if (oldChoose != c && listener != null)

             {

                 if (c > 0 && c < b.length)

                 {

                     listener.onTouchingLetterChanged(b[c]);

                     choose = c;

                     invalidate();

                 }

             }

             break;

         case MotionEvent.ACTION_MOVE:

             if (oldChoose != c && listener != null)

             {

                 if (c > 0 && c < b.length)

                 {

                     listener.onTouchingLetterChanged(b[c]);

                     choose = c;

                     invalidate();

                 }

             }

             break;

         case MotionEvent.ACTION_UP:

             showBkg = true;

             if (oldChoose != c && listener != null)

             {

                 if (c > 0 && c < b.length)

                 {

                     listener.onTouchingLetterChanged(b[c]);

                     choose = c;

                     invalidate();

                 }

             }

             break;

         }

         return true;

     }

     @Override

     public boolean onTouchEvent(MotionEvent event)

     {

         return super.onTouchEvent(event);

     }

     public void setOnTouchingLetterChangedListener(OnTouchingLetterChangedListener onTouchingLetterChangedListener)

     {

         this.onTouchingLetterChangedListener = onTouchingLetterChangedListener;

     }

     public interface OnTouchingLetterChangedListener

     {

         public void onTouchingLetterChanged(String s);

     }

 }

源码下载:https://yunpan.cn/cr9yS4D6RWwid访问密码 09fa

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