Android 获取联系人和电话号码详解手机开发

  private void queryContactPhoneNumber() { 
        String[] cols = {ContactsContract.PhoneLookup.DISPLAY_NAME, ContactsContract.CommonDataKinds.Phone.NUMBER}; 
        Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, 
                cols, null, null, null); 
        for (int i = 0; i < cursor.getCount(); i++) { 
            cursor.moveToPosition(i); 
            // 取得联系人名字 
            int nameFieldColumnIndex = cursor.getColumnIndex(ContactsContract.PhoneLookup.DISPLAY_NAME); 
            int numberFieldColumnIndex = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER); 
            String name = cursor.getString(nameFieldColumnIndex); 
            String number = cursor.getString(numberFieldColumnIndex); 
            Toast.makeText(this, name + " " + number, Toast.LENGTH_SHORT).show(); 
        } 
    }

public class AndroidTest extends Activity {    
private static final String TAG = "AndroidTest";    
private TextView m_TextView;    
private EditText m_EditText;    
private String mNumber;    
@Override   
public void onCreate(Bundle savedInstanceState){    
super.onCreate(savedInstanceState);    
setContentView(R.layout.main);    
m_TextView = (TextView) findViewById(R.id.TextView01);    
m_EditText = (EditText) findViewById(R.id.EditText01);    
m_TextView.setTextSize(20);    
/**   
* 设置当m_EditText中为空时提示的内容     
* 在XML中同样可以实现：android:hint="请输入账号"   
*/   
m_EditText.setHint("请输入账号");    
/* 设置EditText事件监听 */   
m_EditText.setOnKeyListener(new EditText.OnKeyListener() {    
public boolean onKey(View arg0, int arg1, KeyEvent arg2)    
{    
// TODO Auto-generated method stub    
// 得到文字，将其显示到TextView中    
//          m_TextView.setText("文本框中内容是：" + m_EditText.getText().toString());    
return false;    
}    
});    
m_EditText.setOnFocusChangeListener(new OnFocusChangeListener() {    
public void onFocusChange(View v, boolean hasFocus) {    
// TODO Auto-generated method stub    
mNumber = ((EditText)v).getText().toString();    
Log.d(TAG, "mNumber = " + mNumber);    
getPeople();    
}    
});    
m_EditText.addTextChangedListener(new TextWatcher() {    
public void afterTextChanged(Editable s) {    
// TODO Auto-generated method stub    
                     
}    
public void beforeTextChanged(CharSequence s, int start, int count,    
int after) {    
// TODO Auto-generated method stub    
                     
}    
public void onTextChanged(CharSequence s, int start, int before,    
int count) {    
// TODO Auto-generated method stub    
// 得到文字，将其显示到TextView中    
m_TextView.setText("文本框中内容是：" + m_EditText.getText().toString());    
}    
});    
}    
/*   
* 根据电话号码取得联系人姓名   
*/   
public void getPeople() {    
String[] projection = { ContactsContract.PhoneLookup.DISPLAY_NAME,    
ContactsContract.CommonDataKinds.Phone.NUMBER};    
Log.d(TAG, "getPeople ---------");    
// 将自己添加到 msPeers 中    
Cursor cursor = this.getContentResolver().query(    
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,    
projection,    // Which columns to return.    
ContactsContract.CommonDataKinds.Phone.NUMBER + " = '" + mNumber + "'", // WHERE clause.    
null,          // WHERE clause value substitution    
null);   // Sort order.    
if( cursor == null ) {    
Log.d(TAG, "getPeople null");    
return;    
}    
Log.d(TAG, "getPeople cursor.getCount() = " + cursor.getCount());    
for( int i = 0; i < cursor.getCount(); i++ )    
{    
cursor.moveToPosition(i);    
// 取得联系人名字    
int nameFieldColumnIndex = cursor.getColumnIndex(ContactsContract.PhoneLookup.DISPLAY_NAME);       
String name = cursor.getString(nameFieldColumnIndex);    
Log.i("Contacts", "" + name + " .... " + nameFieldColumnIndex); // 这里提示 force close    
m_TextView.setText("联系人姓名：" + name);    
}    
}    
}