Android :: Which Function I Have To Call On Cancel Button In User Inferface (activity)?
Nov 10, 2010
I have various activitys on my app. I have a configuration Activity, and i want to put a cancel button, that, when user press this button, the configuration window get's closed and turn back into the previous activity.i search in google and i find something about calling cancel or dismiss functions, but i can't call them cause this is not a dialog, it's an activity
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Sep 5, 2009
I'm trying to show a simple layout where I can call this activity and fill in some values, then hit the save or cancel button. Unfortunately the save and cancel buttons never appear. Can someone help please?
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/ android" android:layout_width="fill_parent" android:layout_height="wrap_content"
android:paddingLeft="8dp" android:paddingRight="8dp" android:paddingTop="8dp">
<TableLayout android:orientation="horizontal" android:layout_width="fill_parent"
android:layout_height="wrap_content"> <TableRow>
<TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/band" android:textStyle="bold" android:textSize="16px" android:paddingRight="5dp" />
<EditText android:id="@+id/band" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1"/>
</TableRow> <TableRow>
<TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/members" android:textStyle="bold" android:textSize="16px" android:paddingRight="5dp" />
<EditText android:id="@+id/members" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1"/>
</TableRow> </TableLayout>
<TableLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent">
<TableRow> <Button android:id="@+id/save" android:text="@string/save" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" />
<Button android:id="@+id/cancel" android:text="@string/cancel" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" />
</TableRow> </TableLayout> </LinearLayout>
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May 16, 2010
I have an Activity (A) and a Service (S) which gets started by A like this:
Intent i = new Intent();
i.putExtra("updateInterval", 10);
i.setClassName("com.blah", "com.blah.S");
startService(i);
A have a function like this one in A: public void someInfoArrived(Info i) Now I want to call A.someInfoArrived(i) from within S. Intent.putExtra has no version where I could pass an Object reference etc.
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Jan 31, 2010
can u tell me how to call a java script method from android activity...
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Sep 28, 2009
My activity bind a service. I want to call the service's function in activity's onStart/onCreate function, but it doesn't work. The service started sunless but the connection is null. When I just call the service's function in other function (onClick for example),
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Feb 19, 2010
I understand that trying to capture home button clicks is a hack, but I need to atleast close my current activity when the user clicks on home button. Is there anyway I can tell the system to close this activity is the user clicks on home button? If so how can I do that? I need to do it as I am listening for location updates and I want to stop the updates and also need to trash any location that was available to me previously. I need to do this just in case any user while in that activity clicks on home button and changes the location settings.
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Sep 27, 2009
When I currently have my activity on the font of the screen, how can I make Android to 'destory' my activity when user clicks 'back' button? (i.e. onDestory of my Activity gets called)?
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May 2, 2010
I have an Activity with a list that is bound to a ListAdapter reading data into a ArrayList from a database. All is well when the data is first loaded. While the Activity is open and the list is being displayed it is possible and likely that the data in the database will be updated by a service but the list does not reflect the changes because the ArrayList does not know about the changes. If the Activity is no longer in the foreground as would be the case if the user goes to the home screen and then is brought back to the foreground I would like for the Activity to not display what it did prior but rather reload the data using the ListAdapter the view is bound to. I think something needs to call finish() but I am not sure what.
This is what I have in the Activity.
CODE:.......................
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Jul 19, 2010
Newbie Question from an iPhone developer.
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Dec 2, 2009
Is it possible to get an intent when the user receives a mail and to cancel the gmail notification?
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Feb 4, 2010
I currently have an application that naturally gets pushed to the background when the home key is pressed.
The activity losses focus but continues running in the background.
So I want to know is it possible to bring the application back to the foreground when the user presses the green key (call button) on the device?
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Sep 8, 2010
implicit intent with class name as action defined in intentfilter. is not working. Only it it is defined as "android.intent.action." it is picked up ? is it so ?
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CODE:.............
In app B, i tried to call the activity in A using below code.
CODE:.............
This code works. But not above line.
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Jul 14, 2009
I'm facing the same head-scratching moment similar to what this person (from Jan 2008) experienced when I realize that there is no cancel button in Android's progress dialog or spinners. It is now July 2009 and I've just installed the cupcake version of Android. Has this thing changed ? If not, are you adding a cancel button into the dialogs and how do you do it ?
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Jun 26, 2010
I'm using a datepicker in Android to let the user to choose the date. I want it to do one thing if the user picks a date and sets it (I have that working fine) and then to clear a certain text field if the user pushes the cancel button on the datepicker (open up the datepicker but then cancel out of it).
The way I've been trying is by making a code...
to attach the listener.
My problem is that the listener works if the user pushes the back button, but not if they push the cancel button. I tried using a dismiss listener, and that works, except for the fact that it goes off even whether I set or cancel the datepicker!
What do I need to do so something goes off if and only if I push the cancel button on my datepicker?
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Aug 9, 2009
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May 2, 2010
Is anyone else's "Cancel" button missing the bottom piece when the phone is in landscape mode and you choose Voice Input?
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Nov 18, 2009
I made the upgrade to Google Voice today. But, after uninstalling Verizon's Visual Voicemail I am still getting text messages from Verizon that I have visual voicemail activity. Do I have to call them to cancel the service?
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Aug 11, 2010
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CODE:................
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Jun 10, 2010
say for example I have this code in my activity:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Thread cThread = new Thread(new Runner());
cThread.start();
}
private NotifyMe(){
//do something here
}
and this is my Runner class:
public class TCPClient implements Runnable {
public void run(){
//call NotifyMe() [THIS IS MY QUESTION]
}
}
I have a thread on my activity that runs the Runner Class. Once the thread start, I would like to call the NotifyMe() function that is located at the activity. Is this possible?
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Sep 21, 2010
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Sep 2, 2010
I have 3 activities in my app: Activity1 -> Activity2 -> Activity3. Inside Activity3, if the user presses Back, I would like to return to Activity2. In Activity3's onPause event, I added a finish() statement. That's probably not even necessary, but I wanted to make sure this Activity gets cleaned up. This works fine.
However, while in Activity3, if the user presses Home or starts a new app (through notification bar or some other means), I want both Activity3 and Activity2 to finish. If the user returns to this app, he should resume with Activity1.
I have figured out how to do one or the other, but I can't figure out how to handle both cases, if it's even possible. Can I trap the "Back" button in Activity3 and send a message back to Activity2 telling it not to finish()? It seems like the Activities follow the same lifecycle flow (Pause, Stop) regardless of what you do to send them to the background. Just to answer the question of why I want this behavior, imagine that Activity1 is a login screen, Activity2 is a selection screen, and Activity3 is a content screen. If I press Back from the content page, I want to be able to make a new selection. If I exit via any other means (Home, notification bar), I want the user to be "logged out".
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I am trying to pass 2 parameters to a javascript function.This code webview.loadUrl("javascript: function_to_call();"); works fine without parameters but i couldn't use it with parameters. code...
And this is how i call it from java . code...
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