我的程序可以成功发送和接收短信。现在我想在我的程序中只接收来自特定电话号码的短信，而来自所有其他号码的短信都会进入手机的收件箱。我使用的代码如下。它不起作用，每条短信都会进入手机的收件箱。我认为msg_from在SmsReceiver方法中，无法在for循环中获得价值，并且始终是null.
主要活动.java
public class MainActivity extends Activity {
private TextView showSms;
private String ReceivedSms;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
super.onCreate(savedInstanceState);
// _smsReceiver.onReceive(getBaseContext(), getIntent());
setContentView(R.layout.activity_main);
Intent _intent = getIntent();
ReceivedSms = _intent.getStringExtra("message");
showSms = (TextView) this.findViewById(R.id.txt_Show);
showSms.setText(ReceivedSms);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
短信接收器.java
public class SmsReceiver extends BroadcastReceiver {
public String str = "";
@Override
public void onReceive(Context context, Intent intent) {
// ---get the SMS message passed in---
Bundle bundle = intent.getExtras();
Object messages[] = (Object[]) bundle.get("pdus");
SmsMessage[] msgs = null;
if (bundle != null)
{
Object[] pdus = (Object[]) bundle.get("pdus");
SmsMessage smsMessage[] = new SmsMessage[messages.length];
//msgs = new SmsMessage[pdus.length];
String msg_from[]=null;
for (int n = 0; n < messages.length; n++)
{
smsMessage[n] = SmsMessage.createFromPdu((byte[]) messages[n]);
msg_from[n] = msgs[n].getOriginatingAddress();
}
if(msg_from .equals("+9856874236"))
{
for (int n = 0; n < messages.length; n++)
{
smsMessage[n] = SmsMessage.createFromPdu((byte[]) pdus[n]);
str += "SMS from " + msgs[n].getOriginatingAddress();
str += " :";
str += msgs[n].getMessageBody().toString();
str += "\n";
abortBroadcast();
}
Intent act = new Intent(context, MainActivity.class);
act.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
act.putExtra("message", str);
context.startActivity(act);
}
}
}
}
清单.xml
<uses-permission android:name="android.permission.SEND_SMS">
</uses-permission>
<uses-permission android:name="android.permission.RECEIVE_SMS">
</uses-permission>
<uses-permission android:name="android.permission.READ_SMS" />
<application android:icon="@drawable/ic_launcher" android:label="@string/app_name">
<activity android:name=".SMS"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MainActivity"
android:label="@string/app_name"/>
<receiver
android:name="com.example.sms.SmsReceiver"
class="com.example.sms.SmsReceiver" >
<intent-filter android:priority="100" >
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
</application>
短信.java
public class SMS extends Activity {
Button btnSendSMS;
EditText txtPhoneNo;
EditText txtMessage;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnSendSMS = (Button) findViewById(R.id.btnSendSMS);
txtPhoneNo = (EditText) findViewById(R.id.txtPhoneNo);
txtMessage = (EditText) findViewById(R.id.txtMessage);
btnSendSMS.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
String phoneNo = txtPhoneNo.getText().toString();
String message = txtMessage.getText().toString();
if (phoneNo.length()>0 && message.length()>0)
sendSMS(phoneNo, message);
else
Toast.makeText(getBaseContext(),
"Please enter both phone number and message.",
Toast.LENGTH_SHORT).show();
}
});
}
private void sendSMS(String phoneNumber, 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 arg0, Intent arg1) {
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 arg0, Intent arg1) {
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));
SmsManager sms = SmsManager.getDefault();
sms.sendTextMessage(phoneNumber, null, message, sentPI, deliveredPI);
}
}
主.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Enter the phone number of recipient" />
<EditText
android:id="@+id/txtPhoneNo"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Message" />
<EditText
android:id="@+id/txtMessage"
android:layout_width="fill_parent"
android:layout_height="150px"
android:gravity="top" />
<Button
android:id="@+id/btnSendSMS"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Send SMS" />
<TextView
android:id="@+id/txt_Show"
android:layout_width="119dp"
android:layout_height="wrap_content"
android:layout_weight="0.11"
android:text="@string/soha" />
</LinearLayout>
</RelativeLayout>