ReadSmsService.java 文件源码

@Nullable
private SmsMessage[] getSmsUnder19(Intent intent) {
    SmsMessage[] messages;
    Bundle bundle = intent.getExtras();
    // 相关链接:https://developer.android.com/reference/android/provider/Telephony.Sms.Intents.html#SMS_DELIVER_ACTION
    Object[] pdus = (Object[]) bundle.get("pdus");

    if ((pdus == null) || (pdus.length == 0)) {
        return null;
    }

    messages = new SmsMessage[pdus.length];
    for (int i = 0; i < pdus.length; i++) {
        messages[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
    }
    return messages;
}