本文实例介绍了Android开发中对联系人修改、新增联系人的方法，通过本实例代码可实现添加联系人、编辑修改联系人，新增联系人和更新联系人等操作,操作主要放在线程中处理，并且在操作的过程中，显示圆形进度条，在Android系统中，这是种比较常见的进度条风格。

具体功能代码如下所示：

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) { } }}