我编写了接收短信的应用程序。
在 AndroidManifest.xml 我写道:
<receiver
android:name=".SmsReceiver">
<intent-filter>
<action
android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
所有接收到的 SMS-es 都由类 SmsReceiver 进行分析。
类短信接收器:
public class SmsReceiver extends BroadcastReceiver
{
private static final String SMS_RECEIVED = "com.example.remotecontrol.SMS_RECEIVED";
private static final String SMS_CONTENT_KEY = "com.example.remotecontrol.SMS_CONTENT_KEY";
@Override
public void onReceive(Context context, Intent intent)
{
Bundle bundle = intent.getExtras();
SmsMessage[] message = null;
String contentMessage = "";
if(bundle != null)
{
Object[] pdus = (Object[]) bundle.get("pdus");
message = new SmsMessage[pdus.length];
for(int i=0; i<message.length; i++)
{
message[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
contentMessage += "SMS from " + message[i].getOriginatingAddress() + ": ";
contentMessage += message[i].getMessageBody() + "\n";
}
Toast.makeText(context, contentMessage, Toast.LENGTH_LONG).show();
}
Intent intentSmsReceived = new Intent();
intentSmsReceived.setAction(SMS_RECEIVED);
intentSmsReceived.putExtra(SMS_CONTENT_KEY, contentMessage);
context.sendBroadcast(intentSmsReceived);
}
}
它接收 SMS 并向程序发送意图。
registerReceiver(new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent)
{
String contentMessage = intent.getExtras().getString(SMS_CONTENT_KEY);
Toast.makeText(context, contentMessage + "text", Toast.LENGTH_LONG).show();
//TODO
//process SMS
unregisterReceiver(this);
}
}, new IntentFilter(SMS_RECEIVED));
这部分代码获取意图并处理 SMS 并与应用程序交互。
如何注销用 Android Manifest 编写的接收器?它处理所有 SMS-es,我希望它只处理一个正确和关闭。