我正在尝试构建一个显示SMS接收通知的代码。我的问题是如何在我的主要活动中实现广播接收器,因为在我的主要活动中我还有其他功能正常工作。如果我尝试创建另一个扩展广播接收器的类,那么如何从主类中调用它?它是在收到消息后立即自动启动该功能还是需要从主活动中激活?
答案 0 :(得分:1)
你看到this的问题了吗? 无论如何试试这个:
public class SmsListener extends BroadcastReceiver{
private SharedPreferences preferences;
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
if(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")){
Bundle bundle = intent.getExtras(); //---get the SMS message passed in---
SmsMessage[] msgs = null;
String msg_from;
if (bundle != null){
//---retrieve the SMS message received---
try{
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]);
msg_from = msgs[i].getOriginatingAddress();
String msgBody = msgs[i].getMessageBody();
}
}catch(Exception e){
// Log.d("Exception caught",e.getMessage());
}
}
}
}
}
注意:在清单文件中添加BroadcastReceiver -
<receiver android:name=".listener.SmsListener">
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
添加此权限:
<uses-permission android:name="android.permission.RECEIVE_SMS" />
您也可以使用Notification.Builder
答案 1 :(得分:0)
如果我是你,我会在你传递捆绑值的广播接收器的onReceive方法中放置一个intent调用,然后在mainactivity上查看是否存在该bundle,如果是,你做什么动作你想做什么(例如,显示对话框,吐司等)。
答案 2 :(得分:0)
广播接收器将由Android调用。您将获得访问者回调中context
的访问权限。从该上下文中,您可以创建通知(基于此问题的标题)或访问applicationContext
,这将是您在清单xml中声明的Application
子类 IF
答案 3 :(得分:-1)
@another,尝试按以下方式实施:
public class MyActivity extends Activity {
private BroadcastReceiver receiver = new BroadcastReceiver() {
// Get the object of SmsManager
final SmsManager sms = SmsManager.getDefault();
public void onReceive(Context context, Intent intent) {
// Retrieves a map of extended data from the intent.
final Bundle bundle = intent.getExtras();
try {
if (bundle != null) {
final Object[] pdusObj = (Object[]) bundle.get("pdus");
for (int i = 0; i < pdusObj.length; i++) {
SmsMessage currentMessage = SmsMessage.createFromPdu((byte[]) pdusObj[i]);
String phoneNumber = currentMessage.getDisplayOriginatingAddress();
String senderNum = phoneNumber;
String message = currentMessage.getDisplayMessageBody();
Log.i("SmsReceiver", "senderNum: "+ senderNum + "; message: " + message);
// Show Alert
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context,
"senderNum: "+ senderNum + ", message: " + message, duration);
toast.show();
} // end for loop
} // bundle is null
} catch (Exception e) {
Log.e("SmsReceiver", "Exception smsReceiver" +e);
}
}
});
public void onResume() {
super.onResume();
IntentFilter filter = new IntentFilter();
filter.addAction(BROADCAST_ACTION);
this.registerReceiver(this.receiver, filter);
}
public void onPause() {
super.onPause();
this.unregisterReceiver(this.receiver);
}
}