Android拦截黑名单（简易版）

public class MyPhoneState extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if ("android.intent.action.PHONE_STATE".equals(intent.getAction())) {
//获取电话号码
String phone = intent.getStringExtra("incoming_number");
Log.i("test", "有电话进来了," + phone);
//获取电话管理者
TelephonyManager manager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);

//得到电话的状态
int s = manager.getCallState();
switch (s) {
case TelephonyManager.CALL_STATE_RINGING:
Log.i("tt", "电话打入:" + phone);
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
Log.i("tt", "电话接通:" + phone);
break;
case TelephonyManager.CALL_STATE_IDLE:
Log.i("tt", "电话挂断:" + phone);
break;
}
if ("15616033302".equals(phone)) {
//得到TelephonyManager class对象
Class<TelephonyManager> telephonyManagerclass = TelephonyManager.class;
//获取TelephonyManager.getITelephony的方法Method对象
Method method = null;
try {
method = telephonyManagerclass.getDeclaredMethod("getITelephony", new  Class[ 0 ]);
//允许访问使用方法
method.setAccessible(true);
//调用方法
try {
ITelephony telephony = (ITelephony) method.invoke(manager, new  Object[]{});
try {
//调用挂断方法
telephony.endCall();
} catch (RemoteException e) {
e.printStackTrace();
}
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
}
}
}
}

<!--电话状态的权限-->
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>