哦，伙计，我已经用谷歌搜索了我的裤子，几天来都没有遇到错误。
简而言之，我想收到一条带有消息设备的短信：命令，例如 SPA:ON
我的应用程序非常简单，我要做的就是更改在 MainActivity 中显示设备状态的文本（即更改 XML 中的 @string/somevalue），以便当我收到 SPA:ON 消息时，我的 TextView从 OFF 的初始字符串变为 ON 的新命令文本。
鉴于下面的代码，最好的方法是什么？
如果不可能 - 我该怎么办？
谢谢
public class MainActivity extends Activity {
private static Button buttonSend;
private static EditText textPhoneNo;
private static EditText textSMS;
private static Context context;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
buttonSend = (Button) findViewById(R.id.buttonSend);
textPhoneNo = (EditText) findViewById(R.id.editTextPhoneNo);
textSMS = (EditText) findViewById(R.id.editTextSMS);
buttonSend.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String phoneNo = textPhoneNo.getText().toString();
String sms = textSMS.getText().toString();
if (phoneNo.length()>0 && sms.length()>0)
{
sendSMS(phoneNo, sms);
}
else
{
Toast.makeText(getBaseContext(),
"Please enter both phone number and message.",
Toast.LENGTH_SHORT).show();
}
}
});
}
//---sends a SMS message to another device---
public void sendSMS(String phoneNo, String message) {
String SENT = "SMS_SENT";
String DELIVERED = "SMS_DELIVERED";
PendingIntent sentPI = PendingIntent.getBroadcast(this, 0,
new Intent(SENT), 0);
PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0,
new Intent(DELIVERED), 0);
//---when the SMS has been sent---
registerReceiver(new BroadcastReceiver(){
@Override
public void onReceive(Context context, Intent intent) {
switch (getResultCode())
{
case Activity.RESULT_OK:
Toast.makeText(getBaseContext(), "SMS sent",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
Toast.makeText(getBaseContext(), "Generic failure",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_NO_SERVICE:
Toast.makeText(getBaseContext(), "No service",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_NULL_PDU:
Toast.makeText(getBaseContext(), "Null PDU",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_RADIO_OFF:
Toast.makeText(getBaseContext(), "Radio off",
Toast.LENGTH_SHORT).show();
break;
}
}
}, new IntentFilter(SENT));
//---when the SMS has been delivered---
registerReceiver(new BroadcastReceiver(){
@Override
public void onReceive(Context context, Intent intent) {
switch (getResultCode())
{
case Activity.RESULT_OK:
Toast.makeText(getBaseContext(), "SMS delivered",
Toast.LENGTH_SHORT).show();
break;
case Activity.RESULT_CANCELED:
Toast.makeText(getBaseContext(), "SMS not delivered",
Toast.LENGTH_SHORT).show();
break;
}
}
}, new IntentFilter(DELIVERED));
try
{
SmsManager sms = SmsManager.getDefault();
sms.sendTextMessage(phoneNo, null, message, sentPI, deliveredPI);
}
catch (Exception e)
{
Toast.makeText(getApplicationContext(),
"SMS faild, please try again.",
Toast.LENGTH_LONG).show();
e.printStackTrace();
}
}
}
要接收（并尝试进行文本更新）的 SMS 代码是：
public class SmsReceiver extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
//---get the SMS message passed in---
Bundle bundle = intent.getExtras();
SmsMessage[] msgs = null;
String str = "";
if (bundle != null)
{
//---retrieve the SMS message received---
Object[] pdus = (Object[]) bundle.get("pdus");
msgs = new SmsMessage[pdus.length];
for (int i=0; i<msgs.length; i++){
msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);
str += "SMS from :" + msgs[i].getOriginatingAddress();
str += " :";
str += msgs[i].getMessageBody().toString();
str += "\n";
}
//---display the new SMS message---
Toast.makeText(context, str, Toast.LENGTH_LONG).show();
//---update the device status from the command---
/* SOME HOW I WANT TO DO:
String toast_msg = "None";
String temp[];
temp = str.split("\\:");
String device = temp[0];
String cmd = temp[1];
TextView t = (TextView) findViewById(R.id.textViewSPAStatus);
t.setText(cmd);
Toast.makeText(getBaseContext(),
toast_msg,
Toast.LENGTH_SHORT).show();
*/
}
}
}