这次主要实现设置安全号码的功能，即当发现手机SIM卡信息发生改变时，会自动给安全号码发送一条报警短信。主要包括选择联系人功能。涉及到的知识点包括：带返回
这次主要实现设置安全号码的功能，即当发现手机SIM卡信息发生改变时，会自动给安全号码发送一条报警短信。主要包括选择联系人功能。涉及到的知识点包括：带返回值的Intent，ListView数据适配器。
选择联系人功能
界面
用ListView来对读取的联系人进行展示
/mobilesafe/res/layout/select_contact.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android=""
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/background"
android:orientation="vertical" >
<ListView
android:id="@+id/lv_select_contact"
android:layout_width="match_parent"
android:layout_height="match_parent"
></ListView>
</LinearLayout>
获取
手机联系人数据
联系人数据封装实体
/mobilesafe/src/com/liuhao/mobilesafe/domain/ContactInfo.java
package com.liuhao.mobilesafe.domain;
/**
* 联系人数据
*
* @author liuhao
*
*/
public class ContactInfo {
private String name;
private String phone;
public ContactInfo() {
}
public ContactInfo(String name, String phone) {
this.name = name;
this.phone = phone;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
获取联系人数据业务类
/mobilesafe/src/com/liuhao/mobilesafe/engine/ContactInfoService.java
package com.liuhao.mobilesafe.engine;
import java.util.ArrayList;
import java.util.List;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import com.liuhao.mobilesafe.domain.ContactInfo;
public class ContactInfoService {
private Context context;
public ContactInfoService(Context context) {
this.context = context;
}
public List<ContactInfo> getContactInfos() {
ContentResolver resolver = context.getContentResolver();
// 1.获取联系人的id
// 2.根据联系人的id获取联系人姓名
// 3.根据联系人id 数据的type，，获取对应的数据（电话，email等）
List<ContactInfo> infos = new ArrayList<ContactInfo>();
ContactInfo info;
Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
Uri dataUri = Uri.parse("content://com.android.contacts/data");
Cursor cursor = resolver.query(uri, null, null, null, null);
while (cursor.moveToNext()) {
info = new ContactInfo();
String id = cursor.getString(cursor.getColumnIndex("_id"));
String name = cursor.getString(cursor.getColumnIndex("display_name"));
if(name==null) continue;
//
System.out.println(name);
info.setName(name);
Cursor dataCursor = resolver.query(dataUri, null, "raw_contact_id=?", new String[]{id}, null);
while(dataCursor.moveToNext()){
String type = dataCursor.getString(dataCursor.getColumnIndex("mimetype"));
String phone = dataCursor. getString(dataCursor.getColumnIndex("data1"));
if(phone==null || type==null) continue;
// 若是电话号码才添加
if("vnd.android.cursor.item/phone_v2".equals(type)){
info.setPhone(phone);
}
//
System.out.println(phone);
//
System.out.println(type);
//
System.out.println("-------");
}
infos.add(info);
info = null;
dataCursor.close();
//
System.out.println("####################3");
}
cursor.close();
return infos;
}
}
数据适配
package com.liuhao.mobilesafe.ui;
import java.util.List;
import com.liuhao.mobilesafe.R;
import com.liuhao.mobilesafe.domain.ContactInfo;
import com.liuhao.mobilesafe.engine.ContactInfoService;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
public class SelectContactActivity extends Activity {
private ListView lv;
private List<ContactInfo> infos;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.select_contact);
ContactInfoService service = new ContactInfoService(this);
infos = service.getContactInfos();// 获取到联系人数据
lv = (ListView) this.findViewById(R.id.lv_select_contact);
lv.setAdapter(new SelectContactAdapter());// 将联系人数据适配到ListView中
lv.setOnItemClickListener(new OnItemClickListener() {// 设置点击每个条目时的响应事件
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
String phone = infos.get(position).getPhone();// 获取到该联系人的号码
Intent intent = new Intent();
intent.putExtra("phone", phone);// 将号码数据设置到Intent中
setResult(0, intent);// Call this to set the result that your activity will return to its caller. 将Intent结果返回给调用者
finish();
}
});
}
private class SelectContactAdapter extends BaseAdapter{
@Override
public int getCount() {
return infos.size();
}
@Override
public Object getItem(int position) {
return infos.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ContactInfo info = infos.get(position);
LinearLayout ll = new LinearLayout(SelectContactActivity.this);
ll.setOrientation(LinearLayout.VERTICAL);
TextView tv_name = new TextView(SelectContactActivity.this);
tv_name.setText("联系人：" + info.getName());
tv_name.setTextColor(getResources().getColor(R.color.textcolor));
TextView tv_phone = new TextView(SelectContactActivity.this);
tv_phone.setText("电话：" + info.getPhone());
tv_phone.setTextColor(getResources().getColor(R.color.textcolor));
ll.addView(tv_name);
ll.addView(tv_phone);
return ll;
}
}
}
Activity直接传递数据
package com.liuhao.mobilesafe.ui;
import com.liuhao.mobilesafe.R;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class SetupWizard3Activity extends Activity implements OnClickListener {
private Button bt_select_contact;
private Button bt_next;
private Button bt_prev;
private EditText et_number;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.setup_wizard3);
bt_select_contact = (Button) this.findViewById(R.id.bt_select_contact);
bt_next = (Button) this.findViewById(R.id.bt_next);
bt_prev = (Button) this.findViewById(R.id.bt_previous);
et_number = (EditText) this.findViewById(R.id.et_setup3_phonenumber);
bt_select_contact.setOnClickListener(this);
bt_next.setOnClickListener(this);
bt_prev.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch(v.getId()){
case R.id.bt_select_contact:
Intent intent = new Intent(this, SelectContactActivity.class);
// 激活一个带返回值的界面
startActivityForResult(intent, 0);
break;
case R.id.bt_next:
finish();// 用户点击“后退”时不会再看到这个界面
Intent intent4 = new Intent(this, SetupWizard4Activity.class);
startActivity(intent4);
// 设置Activity切换时的动画效果
overridePendingTransition(R.anim.alpha_in, R.anim.alpha_out);
break;
case R.id.bt_previous:
finish();// 用户点击“后退”时不会再看到这个界面
Intent intent2 = new Intent(this, SetupWizard2Activity.class);
startActivity(intent2);
// 设置Activity切换时的动画效果
overridePendingTransition(R.anim.alpha_in, R.anim.alpha_out);
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(data != null){
String phone = data.getStringExtra("phone");
et_number.setText(phone);
et_number.setTextColor(getResources().getColor(R.color.textcolor));
}
}
}
