Android 2.2根据电话号码查询联系人姓名的方法，,public class

Android 2.2根据电话号码查询联系人姓名的方法，,public class

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);           }       }   }//该片段来自于http://byrx.net