如何接听手机来电并通过应用程序接听？

Question

我正在构建一个应用程序，在该应用程序中我想接受移动来电，并且需要该代码。如果有人可以帮助我。

public void acceptCall()  {

    try {
        if (tm == null) {
            // this will be easier for debugging later on
            throw new NullPointerException("tm == null");
        }

        // do reflection magic
        tm.getClass().getMethod("answerRingingCall").invoke(tm);
    } catch (Exception e) {
        // we catch it all as the following things could happen:
        // NoSuchMethodException, if the answerRingingCall() is missing
        // SecurityException, if the security manager is not happy
        // IllegalAccessException, if the method is not accessible
        // IllegalArgumentException, if the method expected other arguments
        // InvocationTargetException, if the method threw itself
        // NullPointerException, if something was a null value along the way
        // ExceptionInInitializerError, if initialization failed
        // something more crazy, if anything else breaks

        // TODO decide how to handle this state
        // you probably want to set some failure state/go to fallback
        Log.e(LOG_TAG, "Unable to use the Telephony Manager directly.", e);
    }
}