實現一個android撥號聯絡人

阿新 • • 發佈：2019-01-15

工作之餘搗鼓了一個類似安卓聯絡人的小應用，記錄一下。

能夠匯入手機上的聯絡人並按拼音首字母排序，實現字母的索引。

有的演算法很笨很麻煩，還得加油。

實現效果如下：

首先定義一個PeopleLoader類，用來讀取聯絡人相關的姓名、電話：

public class PeopleLoader {

private static List<PeopleInfo> peopleList = new ArrayList<PeopleInfo>();//儲存聯絡人物件的List

private static PeopleLoader peopleLoader;

private static ContentResolver contentResolver;//使用ContentResolver查詢需要的資料

private Uri contentUri = Contacts.CONTENT_URI;//該URI用來查詢聯絡人資訊

public static PeopleLoader instance(ContentResolver pContentResolver){
if(peopleLoader == null){
contentResolver = pContentResolver;
peopleLoader = new PeopleLoader();
}
return peopleLoader;
}

public List<PeopleInfo> getPeopleList(){
return sort(peopleList);
}

public String getPinYinHeadChar(String str) {//該方法用來獲取聯絡人姓名首個漢字的首個拼音，需要在專案中匯入pinyin4j的包

String convert = "";
char word = str.charAt(0);
String[] pinyinArray = PinyinHelper.toHanyuPinyinStringArray(word);
if(pinyinArray != null){
convert += pinyinArray[0].charAt(0);
}else{
convert += word;
}
return convert;
}

public List<PeopleInfo> sort(List<PeopleInfo> l){//對獲取的PeopleList重新排序

List<PeopleInfo> newList = new ArrayList<PeopleInfo>();
int[] position = new int[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
23, 24, 25, 26, 27};//該陣列是插入資料的標誌位0-26對應a-z、#
for(int i=0; i<27; i++){//該迴圈插入A-Z、#，聯絡人會根據首個拼音插在相應欄目下方
if(i!=26){
char A = (char) (65+i);
newList.add(new PeopleInfo(String.valueOf(A), String.valueOf(A)));
}else{
newList.add(new PeopleInfo("#", "#"));
}
}
for(int i=0; i<l.size(); i++){//將聯絡人插入相應欄目，應該注意各個標誌位的增加（希望有人能教我簡單點的方法，感覺很麻煩）
String first = getPinYinHeadChar(l.get(i).getName());
switch (first){
case "a":
newList.add(position[0], l.get(i));
newList.get(position[0]).setId("a");
for(int j=0; j<27; j++){
position[j]++;
}
break;
case "b":
newList.add(position[1], l.get(i));
newList.get(position[1]).setId("b");
for(int j=0; j<27; j++){
position[j]++;
}
break;
case "c":
newList.add(position[2], l.get(i));
newList.get(position[2]).setId("c");
for(int j=2; j<27; j++){
position[j]++;
}
break;
case "d":
newList.add(position[3], l.get(i));
newList.get(position[3]).setId("d");
for(int j=3; j<27; j++){
position[j]++;
}
break;
case "e":
newList.add(position[4], l.get(i));
newList.get(position[4]).setId("e");
for(int j=4; j<27; j++){
position[j]++;
}
break;
case "f":
newList.add(position[5], l.get(i));
newList.get(position[5]).setId("f");
for(int j=5; j<27; j++){
position[j]++;
}
break;
case "g":
newList.add(position[6], l.get(i));
newList.get(position[6]).setId("g");
for(int j=6; j<27; j++){
position[j]++;
}
break;
case "h":
newList.add(position[7], l.get(i));
newList.get(position[7]).setId("h");
for(int j=7; j<27; j++){
position[j]++;
}
break;
case "i":
newList.add(position[8], l.get(i));
newList.get(position[8]).setId("i");
for(int j=8; j<27; j++){
position[j]++;
}
break;
case "j":
newList.add(position[9], l.get(i));
newList.get(position[9]).setId("j");
for(int j=9; j<27; j++){
position[j]++;
}
break;
case "k":
newList.add(position[10], l.get(i));
newList.get(position[10]).setId("k");
for(int j=10; j<27; j++){
position[j]++;
}
break;
case "l":
newList.add(position[11], l.get(i));
newList.get(position[11]).setId("l");
for(int j=11; j<27; j++){
position[j]++;
}
break;
case "m":
newList.add(position[12], l.get(i));
newList.get(position[12]).setId("m");
for(int j=12; j<27; j++){
position[j]++;
}
break;
case "n":
newList.add(position[13], l.get(i));
newList.get(position[13]).setId("n");
for(int j=13; j<27; j++){
position[j]++;
}
break;
case "o":
newList.add(position[14], l.get(i));
newList.get(position[14]).setId("o");
for(int j=14; j<27; j++){
position[j]++;
}
break;
case "p":
newList.add(position[15], l.get(i));
newList.get(position[15]).setId("p");
for(int j=15; j<27; j++){
position[j]++;
}
break;
case "q":
newList.add(position[16], l.get(i));
newList.get(position[16]).setId("q");
for(int j=16; j<27; j++){
position[j]++;
}
break;
case "r":
newList.add(position[17], l.get(i));
newList.get(position[17]).setId("r");
for(int j=17; j<27; j++){
position[j]++;
}
break;
case "s":
newList.add(position[18], l.get(i));
newList.get(position[18]).setId("s");
for(int j=18; j<27; j++){
position[j]++;
}
break;
case "t":
newList.add(position[19], l.get(i));
newList.get(position[19]).setId("t");
for(int j=19; j<27; j++){
position[j]++;
}
break;
case "u":
newList.add(position[20], l.get(i));
newList.get(position[20]).setId("u");
for(int j=20; j<27; j++){
position[j]++;
}
break;
case "v":
newList.add(position[21], l.get(i));
newList.get(position[21]).setId("v");
for(int j=21; j<27; j++){
position[j]++;
}
break;
case "w":
newList.add(position[22], l.get(i));
newList.get(position[22]).setId("w");
for(int j=22; j<27; j++){
position[j]++;
}
break;
case "x":
newList.add(position[23], l.get(i));
newList.get(position[23]).setId("x");
for(int j=23; j<27; j++){
position[j]++;
}
break;
case "y":
newList.add(position[24], l.get(i));
newList.get(position[24]).setId("y");
for(int j=24; j<27; j++){
position[j]++;
}
break;
case "z":
newList.add(position[25], l.get(i));
newList.get(position[25]).setId("z");
for(int j=25; j<27; j++){
position[j]++;
}
break;
default:
newList.add(position[26], l.get(i));
newList.get(position[26]).setId("#");
position[26]++;
break;
}
}
return newList;//返回排序後的PeopleList

}

private PeopleLoader(){
Cursor cursor = contentResolver.query(contentUri, new String[]{Contacts._ID,Contacts.DISPLAY_NAME}, null, null, null);//獲得所有聯絡人遊標
if(cursor == null){//判斷遊標

}else if(!cursor.moveToFirst()){//將遊標返回到第一項，可以不用else if

}else{
int mName = cursor.getColumnIndex(Contacts.DISPLAY_NAME);//獲取聯絡人名字所在列號
do{//將所有資料存入PeopleList
String name = cursor.getString(mName);//根據列號獲取名字
int ID = cursor.getInt(cursor.getColumnIndex(Contacts._ID));//根據聯絡人id列號獲取聯絡人id
Cursor c1 = contentResolver.query(Phone.CONTENT_URI, new String[]{Phone.NUMBER},
Phone.CONTACT_ID+"="+ID, null, null);//根據id獲取聯絡人電話

PeopleInfo peopleInfo = new PeopleInfo("", name);//以下插入資料到PeopleList
if(c1!=null){
while(c1.moveToNext()){
peopleInfo.setPhone(c1.getString(c1.getColumnIndex(Phone.NUMBER)));
}
}
//peopleInfo.setPhone(c1.getString(c1.getColumnIndex(Phone.NUMBER)));
peopleList.add(peopleInfo);
}while(cursor.moveToNext());

}
cursor.close();
}

//PeopleInfo實現parcelable介面，用來儲存聯絡人的資訊：

static class PeopleInfo implements Parcelable{

private String name;
private String phone;
private String id;//此處id值是後面判斷的一個標誌

public String getId(){
return id;
}

public String getName(){
return name;
}

public String getPhone(){
return phone;
}

public PeopleInfo(){

}

public PeopleInfo(String pId, String pName){
id = pId;
name = pName;
}

public void setId(String id){
this.id = id;
}

public void setName(String name){
this.name = name;
}

public void setPhone(String phone){
this.phone = phone;
}

//要實現的三個方法
@Override
public int describeContents() {
// TODO Auto-generated method stub
return 0;
}

@Override
public void writeToParcel(Parcel dest, int flags) {
// TODO Auto-generated method stub
dest.writeString(id);
dest.writeString(name);
dest.writeString(phone);
}

public static final Parcelable.Creator<PeopleInfo>
CREATOR = new Creator<PeopleLoader.PeopleInfo>(){

@Override
public PeopleInfo createFromParcel(Parcel source) {
// TODO Auto-generated method stub
PeopleInfo peopleInfo = new PeopleInfo();
peopleInfo.setId(source.readString());
peopleInfo.setName(source.readString());
peopleInfo.setPhone(source.readString());
return peopleInfo;
}

@Override
public PeopleInfo[] newArray(int size) {
// TODO Auto-generated method stub
return new PeopleInfo[size];
}

};

}
}

MainActivity中程式碼如下：

public class MainActivity extends Activity {

private GroupListAdapter adapter = null;
private ListView listView = null;
public List<String> listName = new ArrayList<String>();
public static List<String> listPhone = new ArrayList<String>();
private List<PeopleInfo> peopleList;

private LinearLayout layoutIndex;
private boolean flag = false;
private int height;
private String[] indexStr = {"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", "#" };

class GroupListAdapter extends BaseAdapter{//定義一個介面卡繼承BaseAdapter

private View.OnClickListener myListener = new View.OnClickListener() {//實現一個OnClickListener用來監聽點選的物件，避免重複new多個監聽器

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent();
if(v.getId() == R.id.ivPhn){//根據id判斷是撥號還是發簡訊
intent.setAction(Intent.ACTION_CALL);
}else{
intent.setAction(Intent.ACTION_SENDTO);
//intent.putExtra("smsto:", "Hello");
}
intent.setData(Uri.parse(v.getTag().toString()));//去除Tag中存入的相應Uri
startActivity(intent);
}
};

@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;

if(convertView == null){
convertView = LayoutInflater.from(MainActivity.this).inflate(R.layout.group_list_item,null);
ImageView photo = (ImageView) convertView.findViewById(R.id.iv);
TextView name = (TextView) convertView.findViewById(R.id.name);
TextView phone = (TextView) convertView.findViewById(R.id.phone);
ImageView btnCall = (ImageView) convertView.findViewById(R.id.ivPhn);
ImageView btnMsg = (ImageView) convertView.findViewById(R.id.ivMsg);
viewHolder = new ViewHolder(photo, name, phone, btnCall, btnMsg);
convertView.setTag(viewHolder);
}else{
viewHolder = (ViewHolder)convertView.getTag();
}

if(peopleList.get(position).getName().length()==1){//判斷是不是A-Z、#等欄目標題（此處應該有更得體的方法而不是簡單的判定長度，畢竟使用者也有可能輸入長度為1的物件）

viewHolder.name.setText(peopleList.get(position).getName());//設定完顯示的A-Z、#字母后，簡單的將其他物件置為空，應該可以用setVisible一類的方法讓其直接消失
viewHolder.phone.setText(null);
viewHolder.photo.setImageResource(0);
viewHolder.btnCall.setImageResource(0);
viewHolder.btnMsg.setImageResource(0);

viewHolder.btnCall.setOnClickListener(null);
viewHolder.btnMsg.setOnClickListener(null);

viewHolder.name.setTextSize(40);
}else{//不是字母標題欄則插入相應聯絡人資料

viewHolder.name.setTextSize(15);
viewHolder.photo.setImageResource(0);
//viewHolder.photo.setImageResource(R.drawable.list_icon);
viewHolder.btnCall.setImageResource(R.drawable.call);
viewHolder.btnMsg.setImageResource(R.drawable.msg);

viewHolder.name.setText(peopleList.get(position).getName());
viewHolder.phone.setText(peopleList.get(position).getPhone());

viewHolder.btnCall.setTag( "tel:"+peopleList.get(position).getPhone());//將撥號、發簡訊要用到的資料存入Tag

viewHolder.btnMsg.setTag( "smsto:"+peopleList.get(position).getPhone());

viewHolder.btnCall.setOnClickListener(myListener);//設定監聽
viewHolder.btnMsg.setOnClickListener(myListener);
}
return convertView;
}

@Override
public int getCount() {
// TODO Auto-generated method stub
return peopleList.size();
}

@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return peopleList.get(position);
}

@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
}

class ViewHolder{
public ViewHolder(ImageView photo,TextView name, TextView phone, ImageView call, ImageView msg){
this.photo = photo;
this.name = name;
this.phone = phone;
this.btnCall = call;
this.btnMsg = msg;
}
ImageView photo;
TextView name;
TextView phone;
ImageView btnCall;
ImageView btnMsg;
}

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

layoutIndex = (LinearLayout)findViewById(R.id.layout); //該layout用來插入右側字母索引

PeopleLoader peopleLoader = PeopleLoader.instance(getContentResolver());
peopleList = peopleLoader.getPeopleList();

adapter = new GroupListAdapter();
listView = (ListView)findViewById(R.id.group_list);
listView.setAdapter(adapter);


}

@Override
public void onWindowFocusChanged(boolean hasFocus) {
if (!flag) {// flag確保if內容只執行一次，避免重複操作
height = layoutIndex.getMeasuredHeight() / indexStr.length; //高度/資料項數目得到每個TextView的長寬
getIndexView();
flag = true;
}
}

private void getIndexView() {
// TODO Auto-generated method stub
LinearLayout.LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, height);
for (int i = 0; i < indexStr.length; i++) { //此迴圈插入字母索引
final TextView tv = new TextView(this);
tv.setLayoutParams(params); //設定插入TextView引數
tv.setText(indexStr[i]);
tv.setPadding(10, 0, 10, 0);
layoutIndex.addView(tv);

layoutIndex.setOnTouchListener(new OnTouchListener() { //設定監聽，讓觸控某個字母索引時，ListView定位到相應字母欄

@Override
public boolean onTouch(View v, MotionEvent event)

{
float y = event.getY();
int index = (int) (y / height);
if (index > -1 && index < indexStr.length) {// 防止越界
String key = indexStr[index];
for(int i=0; i<peopleList.size(); i++){
if(peopleList.get(i).getName().equalsIgnoreCase(key)&&peopleList.get(i).getId().equalsIgnoreCase(key)){//找到相應的字母欄（此處應有簡單方法，很麻煩）
listView.setSelectionFromTop(i, 0); // 滑動到第一項
break;
}
}


}
return true;
}
});
}
}

}

學到了contentresolver物件、Parcelable介面、介面卡的使用，listview的佈局，根據拼音首字母的索引，側邊索引的實現。

佈局檔案沒貼了，下載連結http://download.csdn.net/detail/u012951394/8938043

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