Android实现新增及编辑联系人的方法

package huahua.contactsfragment;
import java.util.Collections;
import huahua.huahuacontacts.R;
import huahua.huahuacontacts.Utils;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.CommonDataKinds.StructuredName;
import android.provider.ContactsContract.RawContacts;
import android.provider.ContactsContract.RawContacts.Data;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class AddContactsActivity extends Activity{
 private Button m_SaveBtn;
 private EditText m_EditName;
 private EditText m_EditNum;
 private TextView m_TextTitle;
 private String m_ContactId;
 private int m_Type;
 ProgressDialog m_dialogLoading;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 this.requestWindowFeature(Window.FEATURE_NO_TITLE);
 setContentView(R.layout.add_contacts);
 Intent intent = getIntent();
 Bundle bundle = intent.getBundleExtra("person");
 m_TextTitle = (TextView)findViewById(R.id.text_title);
 m_EditName = (EditText)findViewById(R.id.edit_name);
 m_EditNum = (EditText)findViewById(R.id.edit_num);
 m_Type = bundle.getInt("tpye");
 m_EditName.setText(bundle.getString("name"));
 m_EditNum.setText(bundle.getString("number"));
 if(m_Type == 0)//新增联系人
 {
  m_TextTitle.setText("新增联系人");
 }
 else if(m_Type == 1)//编辑联系人
 {
  m_ContactId = bundle.getString("id");
  m_TextTitle.setText("编辑联系人");
 }
 m_SaveBtn = (Button)findViewById(R.id.btn_save_contact);
 m_SaveBtn.setOnClickListener(new View.OnClickListener() {
  @Override
  public void onClick(View v) {
  if("".equals(m_EditName.getText().toString()))
  {
   Toast.makeText(AddContactsActivity.this, "请输入联系人姓名", Toast.LENGTH_SHORT).show();
  }
  else if("".equals(m_EditNum.getText().toString()))
  {
   Toast.makeText(AddContactsActivity.this, "请输入联系人电话", Toast.LENGTH_SHORT).show();
  }
  else if(m_Type == 0)
  {
   //新增联系人操作,放在线程中处理
   new SaveContactTask().execute();
  }
  else if(m_Type == 1)
  {
   //更新联系人操作,放在线程中处理
   new ChangeContactTask().execute();
  }
  }
 });
 }
 class SaveContactTask extends AsyncTask<Void, Integer, Void>{
 @Override
 protected Void doInBackground(Void... params) {
  Utils.AddContact(m_EditName.getText().toString(), m_EditNum.getText().toString());
  return null;
 }
 @Override
 protected void onPostExecute(Void result) {
  if(m_dialogLoading!= null)
  {
  m_dialogLoading.dismiss();
  finish();
  }
 }
 @Override
 protected void onPreExecute() {
  m_dialogLoading = new ProgressDialog(AddContactsActivity.this);
     m_dialogLoading.setProgressStyle(ProgressDialog.STYLE_SPINNER);//设置风格为圆形进度条
     m_dialogLoading.setMessage("正在保存联系人");
     m_dialogLoading.setCancelable(false);
      m_dialogLoading.show();
 }
 @Override
 protected void onProgressUpdate(Integer... values) {
 }
 }
 class ChangeContactTask extends AsyncTask<Void, Integer, Void>{
 @Override
 protected Void doInBackground(Void... params) {
  Utils.ChangeContact(m_EditName.getText().toString(), m_EditNum.getText().toString(),m_ContactId);
  return null;
 }
 @Override
 protected void onPostExecute(Void result) {
  if(m_dialogLoading!= null)
  {
  m_dialogLoading.dismiss();
  finish();
  }
 }
 @Override
 protected void onPreExecute() {
  m_dialogLoading = new ProgressDialog(AddContactsActivity.this);
     m_dialogLoading.setProgressStyle(ProgressDialog.STYLE_SPINNER);//设置风格为圆形进度条
     m_dialogLoading.setMessage("正在保存联系人");
     m_dialogLoading.setCancelable(false);
      m_dialogLoading.show();
 }
 @Override
 protected void onProgressUpdate(Integer... values) {
 }
 }
}