Android 2.2根据电话号码查询联系人姓名的方法，

Android 2.2根据电话号码查询联系人姓名的方法，

找到一个关于联系人和电话查寻的方法，和大家分享一下

1.[Java]代码

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);   
        }   
    }   
       
}