如何在Android 8.0中以编程方式接受振铃呼叫？

<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.ANSWER_PHONE_CALLS" />

TelecomManager telecomManager = (TelecomManager) getSystemService(Context.TELECOM_SERVICE);

if (telecomManager != null) {
    telecomManager.acceptRingingCall();
}

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
    if (ContextCompat.checkSelfPermission(this, Manifest.permission.ANSWER_PHONE_CALLS) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ANSWER_PHONE_CALLS}, REQUEST_PERMISSION_CODE);
    } else {
        // 已经有权限，直接接听电话
        if (telecomManager != null) {
            telecomManager.acceptRingingCall();
        }
    }
} else {
    // Android 8.0以下版本直接接听电话
    if (telecomManager != null) {
        telecomManager.acceptRingingCall();
    }
}