android开发笔记之联系人百家姓功能的实现
效果图:
实现原理：
把联系人的姓名的每一个字，保存在一个ArrayList中，去除相同的姓氏，并且保存每个姓氏所对应在联系人列表中的位置，当用户点击相应的姓氏时，就跳转到对应的联系人列表姓氏对应的位置！
实现方法:
1.Hy_family_name_popup_sel.xml(百家姓弹出选择窗口界面的布局文件)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/myPopupViewFamilyNameLL"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#000000"
android:gravity="center"
>
<GridView
android:id="@+id/myPopupViewFamilyNameGV"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:numColumns="5"
android:gravity="center"
android:layout_gravity="center"
android:focusable="false"
android:clickable="false"
android:descendantFocusability="blocksDescendants"
>
</GridView>
</LinearLayout>
2.Hy_family_name_item.xml(GridView item的布局文件)
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/myFamilyNameItem"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:textSize="40sp"
android:textColor="#FFFFFF"
android:clickable="true"
android:focusable="true"
android:focusableInTouchMode="true"
/>
3.HYFamilyNameAdapter.java(GridView 的自定义adapter)：
在这个文件中，我们定义了一个interface OnFamilyNameSelectListener，这个接口的主要作用是，把点击姓氏，进行跳转的操作，此接口可以方便在需要时进行实现，是一个开发的利器噢！！
package com.android.contacts.list;
import java.util.ArrayList;
import android.content.Context;
import android.content.Intent;
import android.content.IntentSender.SendIntentException;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import com.android.contacts.R;
public class HYFamilyNameAdapter extends BaseAdapter{
public static OnFamilyNameSelectListener onFamilyNameSelectListener;
public Context context = null;
public ArrayList<String> data;
public LayoutInflater mLayoutInflater;
public HYFamilyNameAdapter(Context context,ArrayList<String> data){
this.context = context;
this.data = data;
mLayoutInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return data.size();
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return data.get(arg0);
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
@Override
public View getView(final int indext, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
GridViewHolder myGVHolder = null;
if(convertView == null){
Log.i("familiNames","convertView == null:");
convertView = mLayoutInflater.inflate(R.layout.hy_family_name_item, null);
myGVHolder = new GridViewHolder();
myGVHolder.myTextView = (TextView)convertView.findViewById(R.id.myFamilyNameItem);
myGVHolder.myTextView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Log.i("familiNames","onItemClick1:"+indext);
OnFamilyNameSelectListener listener = onFamilyNameSelectListener;
if(listener != null){
listener.onFamilyNameSelect(indext);
Log.i("familiNames","listener.onFamilyNameSelect(indext)");
}
}
});
convertView.setTag(myGVHolder);
}else{
myGVHolder = (GridViewHolder)convertView.getTag();
Log.i("familiNames","convertView != null:");
}
if(data.get(indext) != null){
myGVHolder.myTextView.setText(data.get(indext));
}
return convertView;
}
public final class GridViewHolder{
public TextView myTextView = null;
}
public void setOnFamilyNameSelectListener(OnFamilyNameSelectListener onFamilyNameSelectListener){
this.onFamilyNameSelectListener = onFamilyNameSelectListener;
}
public interface OnFamilyNameSelectListener{
public void onFamilyNameSelect(int indext);
}
}
4.主文件代码:
(1)引进一些包
import android.widget.ScrollView; import android.widget.GridView; import android.widget.Adapter; import com.android.contacts.list.HYFamilyNameAdapter.OnFamilyNameSelectListener; import com.mediatek.common.featureoption.FeatureOption; import android.view.Gravity;
(2)定义一个总开关
public static boolean isOpenFamilyNames = true;
(3)定义一些变量：
private ImageButton btnFooterFamiliNames; private View myPopUpView; private GridView myPopupViewFamilyNameGV; private HYFamilyNameAdapter myGridViewAdapter;
private MyAsyncQueryHandler asyncQuery;
private static final String NAME = "name", NUMBER = "number", SORT_KEY = "sort_key",FAMILY_NAME="family_name";
private HashMap<String, Integer> familyNameIndexer; private ArrayList<String> familyNameSections;
private HashMap<String, Integer> alphaIndexer; private TextView mShowOverlay; private String [] sections;
（4）定义显示开头入口
isOpenFamilyNames = FeatureOption.HY_FAMILY_NAME_SUPPORT;
if(isOpenFamilyNames == true){
btnFooterFamiliNames=(ImageButton)listLayout.findViewById(R.id.btn_footer_familiNames);
btnFooterFamiliNames.setOnClickListener(this);
}else{
btnFooterFamiliNames=(ImageButton)listLayout.findViewById(R.id.btn_footer_familiNames);
btnFooterFamiliNames.setVisibility(View.GONE);
}
(5)快速查询联系人数据：
Uri uri = Uri.parse("content://com.android.contacts/data/phones");
//String[] projection = { "_id", "display_name", "data1", "sort_key" };
String[] projection = { "_id", "display_name", "data1", "sort_key","data3" };
asyncQuery.startQuery(0, null, uri, projection, null, null,
"sort_key COLLATE LOCALIZED asc");
private class MyAsyncQueryHandler extends AsyncQueryHandler {
public MyAsyncQueryHandler(ContentResolver cr) {
super(cr);
alphaIndexer = new HashMap<String, Integer>();
familyNameIndexer = new HashMap<String, Integer>();
}
@Override
protected void onQueryComplete(int token, Object cookie, Cursor cursor) {
int iCount = cursor.getCount();
if (cursor != null && iCount > 0) {
List<ContentValues> list = new ArrayList<ContentValues>();
cursor.moveToFirst();
int i;
ContentValues cv =null;
for (i = 0; i < iCount; i++) {
cv = new ContentValues();
cursor.moveToPosition(i);
//String family_name = cursor.getString(4);
String name = cursor.getString(1);
// String name = cursor.getString(1);
//String number = cursor.getString(2);
String sortKey = cursor.getString(3);
//cv.put(FAMILY_NAME, family_name);
cv.put(NAME, name);
//cv.put(NAME, name);
// cv.put(NUMBER, number);
cv.put(SORT_KEY, sortKey);
list.add(cv);
}
if (list.size() > 0) {
onLoadMap(list);
}
}
}
public void onLoadMap(List<ContentValues> list){
int iCount=list.size();
int i;
sections = new String[iCount];
//familyNameSections = new String[iCount];
familyNameSections = new ArrayList<String>();
for (i = 0; i < iCount; i++) {
String currentStr = getAlpha(list.get(i).getAsString(SORT_KEY));
//String curFamilyName = getFamilyNameIndext(list.get(i).getAsString(FAMILY_NAME));
String curFamilyName = getFamilyNameIndext(list.get(i).getAsString(NAME)).substring(0, 1);
Log.i("familiNames","curFamilyName:"+curFamilyName);
String previewStr = (i - 1) >= 0 ? getAlpha(list.get(i - 1).getAsString(SORT_KEY)) : " ";
//String preFamilyName = (i - 1) >= 0 ? getFamilyNameIndext(list.get(i - 1).getAsString(FAMILY_NAME)) : " ";
String preFamilyName = (i - 1) >= 0 ? (getFamilyNameIndext(list.get(i - 1).getAsString(NAME)).substring(0, 1)) : " ";
Log.i("familiNames","preFamilyName:"+preFamilyName);
if (!preFamilyName.equals(curFamilyName)) {
//String familyName = getFamilyNameIndext(list.get(i).getAsString(FAMILY_NAME));
String familyName = getFamilyNameIndext(list.get(i).getAsString(NAME)).substring(0, 1);
Log.i("familiNames","familyName:"+familyName);
if(familyName != null){
familyNameIndexer.put(familyName, i);
//familyNameSections[i] = familyName;
familyNameSections.add(familyName);
}
}
if (!previewStr.equals(currentStr)) {
String name = getAlpha(list.get(i).getAsString(SORT_KEY));
alphaIndexer.put(name, i);
sections[i] = name;
}
}
}
}
private static String getFamilyNameIndext(String str) {
if (str == null) {
return "#";
}
if (str.trim().length() == 0) {
return "#";
}
return str;
}
private static String getAlpha(String str) {
if (str == null) {
return "#";
}
if (str.trim().length() == 0) {
return "#";
}
char c = str.trim().substring(0, 1).charAt(0);
Pattern pattern = Pattern.compile("^[A-Za-z]+$");
if (pattern.matcher(c + "").matches()) {
return (c + "").toUpperCase();
} else {
return "#";
}
}
（6）实时实现点击姓氏，跳转接口：
private OnFamilyNameSelectListener onFamilyNameSelectListener=new OnFamilyNameSelectListener(){
public void onFamilyNameSelect(int indext){
if(mAllContactsAdapter !=null){
Log.i("familiNames","onFamilyNameSelectListener.onFamilyNameSelect");
String familyName = familyNameSections.get(indext);
int position = familyNameIndexer.get(familyName);
myPopUpView.setVisibility(View.GONE);
mListView.setSelection(position);
}
}
};
（7）显示姓氏选择界面：
private void popUpFamilyNamesSele(){
myPopUpView = LayoutInflater.from(getActivity()).inflate(R.layout.hy_family_name_popup_sel,null);
myPopupViewFamilyNameGV = (GridView)myPopUpView.findViewById(R.id.myPopupViewFamilyNameGV);
myGridViewAdapter = new HYFamilyNameAdapter(getActivity(),familyNameSections);
myGridViewAdapter.setOnFamilyNameSelectListener(onFamilyNameSelectListener);
myPopupViewFamilyNameGV.setAdapter(myGridViewAdapter);
WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_APPLICATION,
WindowManager.LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING | WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE ,
PixelFormat.TRANSLUCENT);
lp.gravity = Gravity.CENTER;
WindowManager windowManager = (WindowManager) this.getActivity().getSystemService(Context.WINDOW_SERVICE);
windowManager.addView(myPopUpView, lp);
}
private void onFamiliNames(){
Log.i("familiNames","onFamiliNames");
popUpFamilyNamesSele();
}
（8）点击监听入口：
public void onClick(View v) {
switch(v.getId()){
case R.id.btn_footer_familiNames:{
onFamiliNames();
break;
}
}
}
参考资料：
1.实现ListView A~Z快速索引
http://blog.csdn.net/appte/article/details/10306341