A）MainActivity部分的代码1 package com.example.cms.systemcontentprovider;
2
3 import android.app.ExpandableListActivity;
4 import android.content.ContentUris;
5 import android.content.ContentValues;
6 import android.database.Cursor;
7 import android.net.Uri;
8 import android.provider.ContactsContract;
9 import android.support.v7.app.AlertDialog;
10 import android.support.v7.app.AppCompatActivity;
11 import android.os.Bundle;
12 import android.view.Gravity;
13 import android.view.SurfaceHolder;
14 import android.view.View;
15 import android.view.ViewGroup;
16 import android.widget.AbsListView;
17 import android.widget.BaseExpandableListAdapter;
18 import android.widget.Button;
19 import android.widget.EditText;
20 import android.widget.ExpandableListAdapter;
21 import android.widget.ExpandableListView;
22 import android.widget.TextView;
23 import android.widget.Toast;
24
25 import org.w3c.dom.Text;
26
27 import java.util.ArrayList;
28
29 public class MainActivity extends AppCompatActivity {
30 private Button searchButton;
31 private Button addButton;
32 private EditText inputname;
33 private EditText inputnummber;
34 private EditText inputemail;
35
36 @Override
37 protected void onCreate(Bundle savedInstanceState) {
38 super.onCreate(savedInstanceState);
39 setContentView(R.layout.activity_main);
40 searchButton= (Button) findViewById(R.id.searchButton);
41 addButton= (Button) findViewById(R.id.addButton);
42 inputname= (EditText) findViewById(R.id.inputname);
43 inputnummber= (EditText) findViewById(R.id.inputnumber);
44 inputemail= (EditText) findViewById(R.id.inputemail);
45
46 searchButton.setOnClickListener(new View.OnClickListener() {
47 @Override
48 public void onClick(View v) {
49 //定义两个List来封装里联系人信息 指定联系人的电话号码 Email等详情
50 final ArrayList<String> names=new ArrayList<String>();
51 final ArrayList<ArrayList<String>> details=new ArrayList<ArrayList<String>>();
52 //使用ContentResolver获取系统所有联系人
53 Cursor cursor=getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,null,null,null,null);
54 //遍历查询结果
55 while(cursor.moveToNext()){
56 //获取联系人的姓名
57 String name=cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
58 names.add(name);
59 //获取联系人对应的ID号
60 String contactId=cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
61 //查找该联系人的电话号码
62 Cursor phones=getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null,ContactsContract.CommonDataKinds.Phone.CONTACT_ID+"="+contactId,null,null);
63 //将每个联系人的信息封装成一个LIST
64 ArrayList<String>detail=new ArrayList<String>();
65 //可能一个联系人都多个电话号码 所以需要遍历
66 while(phones.moveToNext()){
67 //获取查询结果中电话号码列中的数据
68 String phoneNumber=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
69 detail.add("电话号码："+phoneNumber);
70 }
71 phones.close();
72 //查找该联系人的Email信息
73 Cursor emails=getContentResolver().query(ContactsContract.CommonDataKinds.Email.CONTENT_URI,null,ContactsContract.CommonDataKinds.Email.CONTACT_ID+"="+contactId,null,null);
74 while(emails.moveToNext()){
75 String emailsAddress=emails.getString(emails.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
76 detail.add("邮件地址："+emailsAddress);
77 }
78 emails.close();
79 details.add(detail);
80 }
81 cursor.close();
82
83 //加载布局文件
84 View resultDialog=getLayoutInflater().inflate(R.layout.result,null);
85 ExpandableListView list= (ExpandableListView) resultDialog.findViewById(R.id.list);
86
87 ExpandableListAdapter adapter=new BaseExpandableListAdapter() {
88 //返回所有分组的数目（即联系人的数目）
89 @Override
90 public int getGroupCount() {
91 return names.size();
92 }
93
94 //返回groupPosition对应位置的联系人底下包含的电话号码数和邮件数
95 @Override
96 public int getChildrenCount(int groupPosition) {
97 return details.get(groupPosition).size();
98 }
99
100 //返回groupPosition对应的联系人分组
101 @Override
102 public Object getGroup(int groupPosition) {
103 return names.get(groupPosition);
104 }
105 //返回groupPosition对应联系人的childPosition位置的对应信息
106 @Override
107 public Object getChild(int groupPosition, int childPosition) {
108 return details.get(groupPosition).get(childPosition);
109 }
110 @Override
111 public long getGroupId(int groupPosition) {
112 return groupPosition;
113 }
114
115 @Override
116 public long getChildId(int groupPosition, int childPosition) {
117 return childPosition;
118 }
119 private TextView getTextView(){
120 TextView textView=new TextView(MainActivity.this);
121 AbsListView.LayoutParams lp=new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,64);
122 textView.setLayoutParams(lp);
123 textView.setGravity(Gravity.CENTER_VERTICAL|Gravity.LEFT);
124 textView.setPadding(36,0,0,0);
125 textView.setTextSize(20);
126 return textView;
127 }
128 //决定每个联系人分组选项外观的方法
129 @Override
130 public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
131 TextView textView=getTextView();
132 textView.setText(getGroup(groupPosition).toString());
133 return textView;
134 }
135 //决定每个子选项外观的方法
136 @Override
137 public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
138 TextView textView=getTextView();
139 textView.setText(getChild(groupPosition,childPosition).toString());
140 return textView;
141 }
142
143 @Override
144 public boolean hasStableIds() {
145 return true;
146 }
147
148 @Override
149 public boolean isChildSelectable(int groupPosition, int childPosition) {
150 return true;
151 }
152 };
153 list.setAdapter(adapter);
154 new AlertDialog.Builder(MainActivity.this).setView(resultDialog).setPositiveButton("确定",null).show();
155 }
156 });
157
158 //为add添加联系人按钮绑定监听事件
159 addButton.setOnClickListener(new View.OnClickListener() {
160 @Override
161 public void onClick(View v) {
162 //获取用户输入的联系人信息
163 String name=inputname.getText().toString();
164 String number=inputnummber.getText().toString();
165 String email=inputemail.getText().toString();
166 //创建一个空的ContentValues 然后向RawContacts.CONTENT_URI执行一个空值插入 这样就能返回一个rawContactId 从而得到插入的位置
167 ContentValues values=new ContentValues();
168 Uri rawContactUri=getContentResolver().insert(ContactsContract.RawContacts.CONTENT_URI,values); 169 long rawContactId= ContentUris.parseId(rawContactUri); 170 values.clear(); 171 //设置联系人姓名模块 172 values.put(ContactsContract.Data.RAW_CONTACT_ID,rawContactId); 173 values.put(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE); 174 values.put(ContactsContract.CommonDataKinds.StructuredName.GIVEN_NAME,name); 175 getContentResolver().insert(ContactsContract.Data.CONTENT_URI,values); //向联系人URI添加联系人名字 176 177 values.clear(); 178 //设置联系人电话号码模块 179 values.put(ContactsContract.Data.RAW_CONTACT_ID,rawContactId); 180 values.put(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE); 181 values.put(ContactsContract.CommonDataKinds.Phone.NUMBER,number); 182 values.put(ContactsContract.CommonDataKinds.Phone.TYPE, ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE);//设置电话号码类型 183 getContentResolver().insert(ContactsContract.Data.CONTENT_URI,values); 184 185 values.clear(); 186 //设置联系人邮件地址模块 187 values.put(ContactsContract.Data.RAW_CONTACT_ID,rawContactId); 188 values.put(ContactsContract.Data.MIMETYPE, ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE); 189 values.put(ContactsContract.CommonDataKinds.Email.DATA,email); 190 values.put(ContactsContract.CommonDataKinds.Email.TYPE, ContactsContract.CommonDataKinds.Email.TYPE_WORK); 191 getContentResolver().insert(ContactsContract.Data.CONTENT_URI,values); 192 Toast.makeText(MainActivity.this,"添加联系人成功", Toast.LENGTH_SHORT).show(); 193 } 194 }); 195 } 196 } B）activity_main.xml 布局文件代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
tools:context="com.example.cms.systemcontentprovider.MainActivity">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/searchButton"
android:text="查看所有联系人"
/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/inputname"
android:hint="请输入联系人的姓名"
/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/inputnumber"
android:hint="请输入联系人的电话号码"
/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/inputemail"
android:hint="请输入联系人的Email"
/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/addButton"
android:layout_below="@+id/searchButton"
android:text="添加联系人"
/>
</LinearLayout>
C)result.xml代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ExpandableListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/list"
></ExpandableListView>
</LinearLayout>
D）AndroidManifest.xml代码
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.cms.systemcontentprovider">
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<uses-permission android:name="android.permission.WRITE_CONTACTS"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity"
android:exported="true"
>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
时间： 2024-08-27 07:48:46