相关疑难解决方法(0)

我已经弄明白了如何发送和接收短信.要发送短信,我必须调用该类的sendTextMessage()和sendMultipartTextMessage()方法SmsManager.要接收SMS消息,我必须在AndroidMainfest.xml文件中注册接收器.然后我不得不重写onReceive()方法BroadcastReceiver.我在下面列举了一些例子.

MainActivity.java

public class MainActivity extends Activity {
    private static String SENT = "SMS_SENT";
    private static String DELIVERED = "SMS_DELIVERED";
    private static int MAX_SMS_MESSAGE_LENGTH = 160;

    // ---sends an SMS message to another device---
    public static void sendSMS(String phoneNumber, String message) {

        PendingIntent piSent = PendingIntent.getBroadcast(mContext, 0, new Intent(SENT), 0);
        PendingIntent piDelivered = PendingIntent.getBroadcast(mContext, 0,new Intent(DELIVERED), 0);
        SmsManager smsManager = SmsManager.getDefault();

        int length = message.length();          
        if(length > MAX_SMS_MESSAGE_LENGTH) …

我有一些代码可以从我的应用程序发送短信，但此代码只能发送 160 个字符，并且不能发送超过 160 个字符。这是我的代码：

protected void sendMessage(String message){

        String phoneNumber = "xxxx";

        try {

            if(message.length() < 161){
                SmsManager smsManager = SmsManager.getDefault();
                smsManager.sendTextMessage(phoneNumber, null, message, null, null);

                Toast.makeText(getApplicationContext(), "SMS Send !", Toast.LENGTH_LONG).show();
            }else{
                Toast.makeText(getApplicationContext(), "Character too long !", Toast.LENGTH_LONG).show();
            }

        }catch (Exception e){
            Toast.makeText(getApplicationContext(), "SMS Failed !", Toast.LENGTH_LONG).show();
            e.printStackTrace();
        }

    }

如何发送超过160个字符的短信？