android text view not updating

Question

i have a problem with updating my textview. i am making a c2dm app. the messages i send are being recieved by the device (as i have put the message to display in the notifcation bar. also i have many logs that state a message has been received). however once i click on a message within the notification area to open up my view it only shows my 1 message. e.g i send a message, then i want to send another message only the first message shows.

i have found out i may need an onNewIntent however i'm not sure if i have gone around it in the correct manner.

 public class MessageReceivedActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        setContentView(R.layout.activity_result);
        Bundle extras = getIntent().getExtras();            

        if (extras != null) {
            String message = extras.getString("payload");
            if (message != null && message.length() > 0) {
                TextView view = (TextView) findViewById(R.id.result);
                view.setText(message);
            }
        }

        super.onCreate(savedInstanceState);     
    }
     @Override
     protected void onNewIntent(Intent intent) {             

            setContentView(R.layout.activity_result);
            Bundle extras = getIntent().getExtras();                

            if (extras != null) {
                String message = extras.getString("payload");
                if (message != null && message.length() > 0) {
                    TextView view = (TextView) findViewById(R.id.result);
                     setIntent(intent);
                    view.setText(message);    
                }
            }               
//         setIntent(intent);          
     }
}

my layout is activity_result which contains only 1 textview my text view is called result and payload is the message i send from my server

any help would be appreciated

Tuffy,as i known you require `android:launchMode="singleTop"` for `MessageReceivedActivity` `AndroidManifest' or `Intent.FLAG_ACTIVITY_SINGLE_TOP` if you starting this Activity using `startActivity()` — ρяσѕρєя K, Mar 22 '12 at 10:12
ok then use `Intent intent2=getIntent(); String str=intent2.getData();` instead of `Bundle extras = getIntent().getExtras();` — ρяσѕρєя K, Mar 22 '12 at 10:22
i get this error on getData("payload"); "The method getData() in the type Intent is not applicable for the arguments (String)" — Tuffy G, Mar 22 '12 at 10:28

score 0 · Answer 1 · edited May 23 '17 at 11:48

0

Update Textview from function Android how to change text in Android TextView

Hope they can help. Is there a reason for not using edittext for these kind of situations? I'm new in this.

edited May 23 '17 at 11:48

Community

1
1

answered Mar 22 '12 at 09:54

cagla

538
4
7

score 0 · Answer 2 · answered Mar 22 '12 at 09:58

0

I think you need to lookout at your notification ids. You send messages, but all of them have the same notification id. You should somehow increment the notification id.

answered Mar 22 '12 at 09:58

Dany's

943
1
7
17

its not that. it only displays messages that have been received the first time the app has been opened. i can see the message in the notification however doesnt update my textview – Tuffy G Mar 22 '12 at 10:08

score 0 · Answer 3 · answered Mar 22 '12 at 10:00

0

in onNewIntent() method, you should use setIntent(intent) before Bundle extras = getIntent().getExtras(); or the extras is null

and setContentView(R.layout.activity_result) is not necessary in onNewIntent()

answered Mar 22 '12 at 10:00

mcxiaoke

188
2
8

thats a negative. not working. i tried: protected void onNewIntent(Intent intent) { // setContentView(R.layout.activity_result); setIntent(intent); Bundle extras = getIntent().getExtras(); if (extras != null) { String message = extras.getString("payload"); if (message != null && message.length() > 0) { TextView view = (TextView) findViewById(R.id.result); view.setText(message); } } – Tuffy G Mar 22 '12 at 10:21

score 0 · Answer 4 · answered Mar 22 '12 at 10:41

in Acitity A:

Intent mIntent = new Intent();  
        mIntent.setClass(mContext, MessageReceivedActivity.class);  

        mIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);  

        mIntent.putExtra("payload", "fdfsfnj");  
        mContext.startActivity(mIntent);

in Acitity MessageReceivedActivity :

    @Override  
        protected void onNewIntent(Intent intent)  
        {  

            String message  = intent.getData();  
            //Or you can use
            String message  = getIntent().getStringExtra("payload", ""); 
super.onNewIntent(intent);  
        }

score 0 · Accepted Answer · answered Mar 22 '12 at 14:54

for all those with this problem. i had a look on another stack overflow question heres the answer. in message receiver inside createNotification add this

    PendingIntent pendingIntent = PendingIntent.getActivity(context, 0,intent, 
            PendingIntent.FLAG_CANCEL_CURRENT);

dont forget the flag at the end that cancels the current view

android text view not updating

5 Answers5