电话黑名单

使用系统ITelephony.aidl

    <!-- 挂断电话 -->
    <uses-permission android:name="android.permission.CALL_PHONE"/>
    <!-- 读取电话状态 -->
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    
    public void startListenCall(View v) {
        startService(new Intent(this, ListenCallService.class));
    }
    
    public void stopListenCall(View v) {
        stopService(new Intent(this, ListenCallService.class));
    }
}

public class ListenCallService extends Service {

    private TelephonyManager tm;
    private PhoneStateListener listener = new PhoneStateListener() {

        // 当通话状态发生改变时调用
        /**
         * Callback invoked when device call state changes.
         *
         * @see TelephonyManager#CALL_STATE_IDLE
         * @see TelephonyManager#CALL_STATE_RINGING
         * @see TelephonyManager#CALL_STATE_OFFHOOK
         */
        public void onCallStateChanged(int state, String incomingNumber) {
            switch (state) {
            case TelephonyManager.CALL_STATE_IDLE:// 空闲 (挂断电话/未来电之前)
                Log.e("TAG", "空闲 (挂断电话/未来电之前)");
                break;
            case TelephonyManager.CALL_STATE_RINGING:// 响铃
                Log.e("TAG", "响铃");
                // 如果来电电话是黑名单号(110), 就挂断电话
                if ("110".equals(incomingNumber)) {
                    try {
                        endCall();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
                break;
            case TelephonyManager.CALL_STATE_OFFHOOK:// 接通
                Log.e("TAG", "接通");

                break;
            default:
                break;
            }
        }
    };

    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }

    /**
     * 挂断电话
     * @throws Exception 
     */
    private void endCall() throws Exception {
        // 通过反射调用隐藏的API
        // 得到隐藏类的Class对象
        Class c = Class.forName("android.os.ServiceManager");
        // 得到方法所对应的Method对象
        Method method = c.getMethod("getService", String.class);
        // 调用方法
        IBinder iBinder = (IBinder) method.invoke(null,
                Context.TELEPHONY_SERVICE);
        // 得到接口对象
        ITelephony telephony = ITelephony.Stub.asInterface(iBinder);
        // 结束通话
        telephony.endCall();
    }

    @Override
    public void onCreate() {
        super.onCreate();
        Log.e("TAG", "Service onCreate()");

        // 得到电话管理器
        tm = (TelephonyManager) this
                .getSystemService(Context.TELEPHONY_SERVICE);
        // 监听电话状态
        tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.e("TAG", "Service onDestroy()");
        // 停止电话监听
        tm.listen(listener, PhoneStateListener.LISTEN_NONE);
    }

}