对手机联系人的一些操作

首先,我们创建布局文件

main的主体布局

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/drawerlayout"
>
<LinearLayout
android:id="@+id/center"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:background="@android:color/holo_blue_light"
android:layout_width="match_parent"
android:layout_height="60dp"></android.support.v7.widget.Toolbar>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="onClick"
android:text="点击添加一个联系人"/>
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent"></android.support.v7.widget.RecyclerView>

</LinearLayout>

<!--Fragment替換該位置-->
<FrameLayout
android:id="@+id/left_layout"
android:layout_width="300dp"
android:layout_height="match_parent"
android:layout_gravity="left"></FrameLayout>
</android.support.v4.widget.DrawerLayout>


这是dialog的布局文件
<?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="match_parent"
android:orientation="vertical" >

<EditText
android:id="@+id/name_et"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</EditText>

<EditText
android:id="@+id/phone_et"
android:layout_width="match_parent"
android:layout_height="wrap_content" />

<EditText
android:id="@+id/email_et"
android:layout_width="match_parent"
android:layout_height="wrap_content" />

</LinearLayout>

这是fragment的布局文件
<FrameLayout 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:background="@android:color/holo_blue_light"
>

<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="抽屜中過的Fragment"/>

</FrameLayout>


这是item布局文件

<?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/display_name_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="TextView"
android:textSize="18sp" />

<TextView
android:id="@+id/phone_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="TextView"
android:textSize="18sp" />

<TextView
android:id="@+id/email_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="TextView"
android:textSize="18sp" />

</LinearLayout>
这是主体代码

import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.DialogInterface;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.v4.app.FragmentManager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.widget.EditText;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

public class MainActivity extends AppCompatActivity {
private Toolbar mToolbar;
private RecyclerView mRecyclerView;
private DrawerLayout mDrawerLayout;
private FragmentManager fm;
private ContentResolver resolver;

private ArrayList<PersonInfo> contacts = new ArrayList<PersonInfo>();
private MyPhoneAdapter adapter;
// raw_contacts 表的Uri
private Uri rawContactsUri = ContactsContract.RawContacts.CONTENT_URI;
// data 表的Uri
private Uri dataUri = ContactsContract.Data.CONTENT_URI;
// data表中的 phone 字段
private Uri phoneUri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
// data 表中的 email 字段
private Uri emailUri = ContactsContract.CommonDataKinds.Email.CONTENT_URI;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
supportRequestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
initView();
initPhoneLink();
}
//获取手机联系人并展示在RecycleView中
private void initPhoneLink() {
resolver = getContentResolver();

contacts.addAll(getContacts());
Log.d("sxl", "initPhoneLink: "+contacts);

adapter = new MyPhoneAdapter(contacts,MainActivity.this,mRecyclerView);
mRecyclerView.setAdapter(adapter);

// 点击 删除 一条联系人数据
adapter.setOnItemClickListener(new MyPhoneAdapter.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
int result = resolver.delete(rawContactsUri, "_id = ?",
new String[] { contacts.get(position).getRawId() });

if (result > 0) {
contacts.remove(position);
adapter.notifyDataSetChanged();
}
}
});
}
// 获取联系人
private ArrayList<PersonInfo> getContacts() {

ArrayList<PersonInfo> list = new ArrayList<PersonInfo>();

Cursor rawCursor = resolver.query(rawContactsUri, new String[] { "_id", "display_name" }, null, null, null);
if (rawCursor != null) {
while (rawCursor.moveToNext()) {
// 用来存储查询到的结果值
Map<String, String> map = new HashMap<String, String>();
PersonInfo info = new PersonInfo();

String rawId = rawCursor.getString(0);
String display_name = rawCursor.getString(1);
info.setRawId(rawId);
info.setDisplay_name(display_name);
// map.put("rawId", rawId);
// map.put("display_name", display_name);

// 根据 拿到的 rawId 查询data 表中的数据
// 获取电话号码
Cursor phoneCursor = resolver.query(phoneUri, new String[] { "data1" }, "raw_contact_id = ?",
new String[] { rawId }, null);
if (phoneCursor != null) {
while (phoneCursor.moveToNext()) {
String phone = phoneCursor.getString(0);
info.setPhone(phone);
// map.put("phone", phone);
}
}

phoneCursor.close();

// 查询 Email
Cursor emailCursor = resolver.query(emailUri, new String[] { "data1" }, "raw_contact_id = ?",
new String[] { rawId }, null);
if (emailCursor != null) {
while (emailCursor.moveToNext()) {
String email = emailCursor.getString(0);
info.setEmail(email);
// map.put("email", email);
}
}

emailCursor.close();
// 一次循环 代表一个联系人
list.add(info);
}
rawCursor.close();

}
return list;
}

public void onClick(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("警告");
builder.setMessage("你确定要添加这个联系人吗？");
View dialogView = View.inflate(this, R.layout.dialog_layout, null);
builder.setView(dialogView);

final EditText name_et = (EditText) dialogView.findViewById(R.id.name_et);
final EditText phone_et = (EditText) dialogView.findViewById(R.id.phone_et);
final EditText email_et = (EditText) dialogView.findViewById(R.id.email_et);

builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {

String name = name_et.getText().toString();
String phone = phone_et.getText().toString();
String email = email_et.getText().toString();
//添加联系人
addContact(name, phone, email);
}

}).setNegativeButton("取消", new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {

}
});
builder.show();
}

// 添加联系人
private void addContact(String name, String phone, String email) {

// 先插入一条数据到 raw_contacts 表中 获取者跳数据的 Id
ContentValues values = new ContentValues();
Uri uri = resolver.insert(rawContactsUri, values);
long id = ContentUris.parseId(uri);

// 插入name
values.clear();
values.put("raw_contact_id", id);
values.put("data1", name);
values.put("mimetype", "vnd.android.cursor.item/name");
resolver.insert(dataUri, values);

// 电话号码
values.clear();
values.put("raw_contact_id", id);
values.put("data1", phone);
values.put("mimetype", "vnd.android.cursor.item/phone_v2");
resolver.insert(dataUri, values);

// email

values.clear();
values.put("raw_contact_id", id);
values.put("data1", email);
values.put("mimetype", "vnd.android.cursor.item/email_v2");
resolver.insert(dataUri, values);

// 刷新一下
contacts.clear();
contacts.addAll(getContacts());
adapter.notifyDataSetChanged();
}

private void initView() {

mToolbar = (Toolbar) findViewById(R.id.toolbar);
mRecyclerView = (RecyclerView) findViewById(R.id.recyclerview);
LinearLayoutManager manager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(manager);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerlayout);
//将fragment添加到占位的位置
fm = getSupportFragmentManager();
fm.beginTransaction().replace(R.id.left_layout,new BlankFragment()).commit();
//设置导航栏图标
mToolbar.setNavigationIcon(R.mipmap.ic_launcher);
//设置导航栏图标监听
mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mDrawerLayout.openDrawer(Gravity.LEFT);
}
});
}
}
这是BlankFragment的代码

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class BlankFragment extends Fragment {

public BlankFragment() {
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_blank, container, false);
}

}

这是MyPhoneAdapter的主体

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.ArrayList;

/**
* Created by 暖阳学长 on 2017/11/6.
*/

public class MyPhoneAdapter extends RecyclerView.Adapter<MyPhoneAdapter.ViewHolder> {
private ArrayList<PersonInfo> mList;
private Context mContext;
private RecyclerView mRecyclerView;
private LayoutInflater mInflater;

public MyPhoneAdapter(ArrayList<PersonInfo> list, Context context, RecyclerView recyclerView) {
mList = list;
mContext = context;
mRecyclerView = recyclerView;
mInflater = LayoutInflater.from(mContext);
}

@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = mInflater.inflate(R.layout.item_layout,parent,false);
return new ViewHolder(view);
}

@Override
public void onBindViewHolder(ViewHolder holder, final int position) {
PersonInfo info = mList.get(position);
holder.display_name_tv.setText(info.getDisplay_name());
holder.email_tv.setText(info.getEmail());
holder.phone_tv.setText(info.getPhone());
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mListener.onItemClick(view,position);
}
});
}

@Override
public int getItemCount() {
return mList.size();
}
private OnItemClickListener mListener;
public interface OnItemClickListener{
public void onItemClick(View view,int position);
}
public void setOnItemClickListener(OnItemClickListener mListener){
this.mListener = mListener;
}

class ViewHolder extends RecyclerView.ViewHolder{
TextView display_name_tv;
TextView phone_tv;
TextView email_tv;

public ViewHolder(View itemView) {
super(itemView);
display_name_tv = (TextView) itemView.findViewById(R.id.display_name_tv);
phone_tv = (TextView) itemView.findViewById(R.id.phone_tv);
email_tv = (TextView) itemView.findViewById(R.id.email_tv);
}
}
}


这是PersonInfo的主体

public class PersonInfo {
private String rawId;

private String display_name;
private String phone;
private String email;

public PersonInfo(String rawId, String display_name, String phone, String email) {
this.rawId = rawId;
this.display_name = display_name;
this.phone = phone;
this.email = email;
}

public PersonInfo() {
}

public String getRawId() {
return rawId;
}

public void setRawId(String rawId) {
this.rawId = rawId;
}

public String getDisplay_name() {
return display_name;
}

public void setDisplay_name(String display_name) {
this.display_name = display_name;
}

public String getPhone() {
return phone;
}

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

public String getEmail() {
return email;
}

public void setEmail(String email) {
this.email = email;
}

@Override
public String toString() {
return "PersonInfo{" +
"rawId='" + rawId + '\'' +
", display_name='" + display_name + '\'' +
", phone='" + phone + '\'' +
", email='" + email + '\'' +
'}';
}
}


最后不要忘了添加依赖

compile 'com.android.support:recyclerview-v7:25.3.1'