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：
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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) {
}
}
}
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