PhoneState查看拨号器状态及显示联系人信息
添加权限
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<uses-permissionandroid:name="android.permission.READ_PHONE_STATE" />?
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private TextView myTextView1;public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.phone_state);myTextView1 = (TextView) findViewById(R.id.myTextView1);/* 新增的PhoneStateListener */MyPhoneCallListener myPhoneCallListener = new MyPhoneCallListener();/* 取得电话服务 */TelephonyManager tm = (TelephonyManager) this.getSystemService(Context.TELEPHONY_SERVICE);/* 注册Listener */tm.listen(myPhoneCallListener, PhoneStateListener.LISTEN_CALL_STATE);}/* 内部class继承PhoneStateListener */public class MyPhoneCallListener extends PhoneStateListener {/* 重写onCallStateChanged当状态改变时改变myTextView1的文字及颜色 */public void onCallStateChanged(int state, String incomingNumber) {switch (state) {/* 无任务状态时 */case TelephonyManager.CALL_STATE_IDLE:myTextView1.setTextColor(Color.RED);myTextView1.setText("无任何状态");break;/* 接起电话时 */case TelephonyManager.CALL_STATE_OFFHOOK:myTextView1.setTextColor(Color.BLUE);myTextView1.setText("接起电话时");break;/* 电话进来时 */case TelephonyManager.CALL_STATE_RINGING:getContactPeople(incomingNumber);break;default:break;}super.onCallStateChanged(state, incomingNumber);}}private void getContactPeople(String incomingNumber) {myTextView1.setTextColor(Color.BLUE);ContentResolver contentResolver = getContentResolver();Cursor cursor = null;/* cursor里要放的字段名称 */String[] projection = new String[] { ContactsContract.Contacts._ID,ContactsContract.Contacts.DISPLAY_NAME,ContactsContract.CommonDataKinds.Phone.NUMBER };/* 用来电电话号码查找该联系人 */cursor = contentResolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, projection,ContactsContract.CommonDataKinds.Phone.NUMBER + "=?",new String[] { incomingNumber }, "");/* 找不到联系人 */if (cursor.getCount() == 0) {myTextView1.setText("未知联系人:" + incomingNumber);} else if (cursor.getCount() > 0) {cursor.moveToFirst();/* projection这个数组里 */String name = cursor.getString(1);myTextView1.setText(name + ":" + incomingNumber);}}?
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