I have a app with 2 activities, A B A has a button that launches a new intent for B. When at B I press home, then launch app again, B is resumed with onResume(). But if after I press home, I use something like taskiller to clear tasks, then I launch app again, it still shows B, but onCreate() is called. What I want for the second situation is for the app to start A instead of B. How can that be done?
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I have an application with contains multiple activities. The main activity will start the others ( use startActivity() ) depends on user event, when an activity close, it calls finish() and return back to main activity. It appears to behavior like that.
However, the "problem" I see is main activity's onCreate function is called every time. I think the the main activity should be placed in the activity stack and simply push to front when others exit, therefore only onResume, onStart are called. Is there some flag I need to set or I misunderstand the activity behaviro?
In child activity, besides calling finish() or startActivity for main activity, what is other way to move main activity to front?
Experts: My MainActivity launches a SubActivity by calling: startActivityForResult(intent, REQ_CODE); The SubActivity shows a dialog that has two buttons: Yes, No For the dialog, I've the following code: public void onClick(DialogInterface dialog, int whichButton) {/* User clicked OK */setResult(DialogInterface. BUTTON_POSITIVE) ;finish();
View 2 Replies View RelatedI have a main screen with buttons to launch other subactivities. I have to press back button each time to go back to the main screen of my application. How do I finish a child activity and automatically return from the caller?
View 5 Replies View RelatedI'm having difficulties handling multiple instances of my root (main) activity for my application. My app in question has an intent filter in place to launch my application when opening an email attatchment from the "Email" app. My problem is if I launch my application first through the the android applications screen and then launch my application via opening the Email attachment it creates two instances of my root activity. steps: Launch root activity A, press home Open email attachment, intent filter triggers launches root activity A Is it possible when opening the Email attachment that when the OS tries to launch my application it detects there is already an instance of it running and use that or remove/clear that instance?
View 1 Replies View Relatedi seem to have a classic task, yet i can't find any examples on how to do it.i want to download something. well i call a web service and get a response but its pretty much the same.in order to do this i have an activity that starts a service that spawns a thread that does the job.now i would like to use the data i got in the activity that started the service.(i assume that starting another activity to handle the job of displaying the result would be simple)my problem is how does the service notify an activity (the one that started it or another one) of something.
View 1 Replies View RelatedI'm looking for a way to resume my activity (which makes phone call) after call ends by user. Currently after user ends a call, it always returns to the phone's native call-log screen instead of the activity that originated the call. Is there any way to prevent or customize this?
View 3 Replies View RelatedIs it possible to configure an android app so that if a user has opened your app, launched numerous activities, then returns to the home screen and relaunches your app again, instead of going to the main activity they will instead be taken to the activity highest on the stack (the most recent activity in your app)?
View 2 Replies View RelatedI have one main activity and one preference Activity. On my first activity I call menu and go on preference Activity by calling startActivityForResult. Code...
View 1 Replies View RelatedI am new in Android. I encounter the following situation, I have a background running service, which will get a keep-updating string from a webpage, I need to show this keep-updating string in my UI through Activity, since this string is get from service, I am wondering, How can the service pass the string to Activity so that activity can render the string on UI.
View 5 Replies View RelatedMy application supports twitter and needs to open browser for OAuth. When the user clicks the Share on Twitter button, the main activity will create another subactivity (TwitterActivity) to handle twitter authentication issues. Here is a flow graph showing how activities are invoked currently. Main is short for MainActivity and Twit for Twitter Activity. startActivity() OAuth intent OAuth callback finish()Main ---------------> Twit ------------> Browser --------------> Twit --------> Browser As you may notice, after the TwitterActivity calls finish() to stop, it will now return back to MainActivity, but Browser instead. How can I make it return back to MainActivity?
View 2 Replies View RelatedAs the title says? Or what situations can cause this method to return null? I would of thought it retained this object always.
View 2 Replies View RelatedNewbie Question from an iPhone developer.
I have called the startActivity(intent) and the new activity loads. How do I go 'back' to the calling activity once a button is pushed. 'Popping' the activity off the stack basically.
I have 3 classes in my example:
Class A, the main activity. Class A calls a startActivityForResult:
Intent intent = new Intent(this, ClassB.class);
startActivityForResult(intent, "STRING");
Class B, this class is a TabActivity:
Intent intent = new Intent(this, ClassC.class);
tabHost.addTab...
Class C, this class is a regular Activity:
Intent intent = this.getIntent();
intent.putExtra("SOMETHING", "EXTRAS");
this.setResult(RESULT_OK, intent);
finish();
onActivityResult is called in Class A, but the resultCode is RESULT_CANCELED instead of RESULT_OK and the returned intent is null. How do I return something from the Activity inside a TabHost?
I realize that the problem is that my Class C is actually running inside of Class B, and Class B is what is returning the RESULT_CANCELED back to Class A. I just don't know a work around yet.
I am trying to launch an activity from another activity .. Within the com.android.SingleLauncher..
I have activity launch code as ..
CODE:...........
I have set the android:multiprocess="true" in the AndroidManifest.xml of TargetSL I don't seem to see the multiple instances of TargetSL, which i am expecting ..
All i see is 2 process, where i was hoping to see an instance of TargetSL, for each launch that was invoked by the singleLauncher!
My MAIN activity is spawning a child activity that contains a ListView. While this ListView is being populated (through an AsyncTask), an indeterminate progress bar is shown.However, assuming that I am an impatient user and I press the BACK button, the progress bar is cancelled but I am left with a blank screen. I have to press BACK one more time to go back to the MAIN activity.I would like the app to go back directly to the MAIN activity by pressing BACK only once. Can somebody point me in the right direction? I am thinking I should call finish() somewhere but I don't know where to put it.
View 3 Replies View RelatedI have a widget that when clicked opens an activity from same app as the widget. When the activity is closed/dismissed via a button, the user will see the full app window IF the app was previously open/in memory. Is there a way for the activity to finish and return to the home screen and not to an existing instance of the app?
Intent i = new Intent(this,RateIt.class);
i.putExtra("com.sporadicsoftware.NetQ.movie_id",aMovie.title_id);
i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET|Intent.FLAG_ACTIVITY_NO_HISTORY|Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(context,
0, i, PendingIntent.FLAG_UPDATE_CURRENT);
updateViews.setOnClickPendingIntent(R.id.movie_one_title, pendingIntent);
How would I force the current thread to wait until another has finished before continuing. In my program the user selects a MODE from an AlertDialog, I want to halt executing of the program before continuing as the mode holds important configuration for the gameplay.
new AlertDialog.Builder(this)
.setItems(R.array.game_modes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case 0:
setMode(TRAINING_MODE);
case 1:
setMode(QUIZ_MODE);
default:
setMode(TRAINING_MODE);
break; ............
//continue loading the rest of onCreate();
contineOnCreate(); } })
.create().show();
If this is impossible can anyone give a possible solution?
I have an android application with a LOT of activities, think of something like a book where every page is a new activity. The user can make changes in each activity, for example highlight certain texts with different colored markers etc. and it's crucial that I'll remember this information as long as the application stays alive (and I don't want/need to remember any of this when it's not). As I understand the best mechanism for storing this kind of information is via onSaveInstanceState(Bundle outState) and onCreate(Bundle)/onRestoreInstanceState(Bundle) rather than lets say, the Preferences mechanism. My only problem is that the user can navigate backwards to previous pages (Activities) and the only way i know of achieving this is by calling finish() which of course kills the current activity without calling onSaveInstanceState(Bundle outState) and even if it did call it, the next time I would launch an activity representing that page it would be an entirely new instance. So my question is: Is there a way to go back to the previous activity without calling finish()? or, is there a better way to save this information? maybe through static variables?
View 1 Replies View RelatedI wrote CustomView Class, and load it in layout. so i trid to find CustomView using findViewById() in activiy to get handle. but findViewById() was return null.
Written Code is like below:
CODE:.........
MapCanvas.java:
CODE:...............
I am currently calling the dialer from within my activity using the following code
"Intent dialIntent = new Intent(Intent.ACTION_DIAL);
startActivity(dialIntent);"
is it possible to return to my activity once the call has ended? When the dialer is shown, i want to block the home button, back button etc. so that user cant go anywhere.. is this possible??
I've had this phone since day one. I was counting down the days until I could get it. I'd gone from an iPhone 3G, to the Aria, to the Captivate. I was loving the Aria, so I was really excited to get a faster, more full-featured phone. And don't get me wrong, 65% of the time it is a great phone, as long as I'm not trying to listen to music (which is what I do 90% of the time on my phones). I love Swype, I love the screen, yada, yada, yada. All the stuff folks love about this phone, I love. But now I'm at a crossroads. I'm an audio professional. Music playback is seriously important to me. Shoddy playback just can't happen. I mean, this is the top of the top of the line when it comes to phones, right? It should do something as simple as playback music flawlessly, right. It should perform basic tasks without freezing, hesitating or any of that, right? My Aria was faster and more responsive than this phone (by far). And a little easier to use overall.
So now I find myself wanting to keep the phone, but if I do something's gotta change. I can't wait for months. I need basic music functionality now. So my choices are: 1. Root (which could damage the phone and put me in a more difficult situation). And I'm not a developer or anything. I'm a guy with a conversational knowledge of computers but way too busy a life to spend as much time as I have with this phone, although I've enjoyed the reading forums and tinkering. 2. Reset. Some say a factory reset has cured all their ills, but I'm skeptical. Do I want to risk having to take the time to re-input all my data on the off chance that it will magically solve the problem? Call me crazy, but I think the phone was at factory reset level when I bought it, and these problems have been around since day one.3. Return. Well, this is almost the same as factory reset, but with a trip to the store, grief from the folks there and the inputting all info again. And nothing guarantees that the new phone is any more or less glitchy than the current one?
Now, let me say that I don't want an iPhone 4. That's the whole reason I went to Android. I don't like the I4. I've been a Mac guy since 1990, I have an iPad, and iTouch, a MacBook, an iMac, a Shuffle, an iPhone 3G. I just don't like where Apple has gone, for the first time in my life.So, I'm asking you all: what the $&^ should I do? I'm at the breaking point with a phone I love.
Here's my use case: The app starts at a login screen. You enter your credentials and hit the "Login" button. Then a progress dialog appears and you wait for some stuff to download. Once the stuff has downloaded, you are taken to a new activity. Exactly which activity you are taken to depends on the server response.
Here's my problem: If you go HOME during this login/download process, at some point in the near future your download will complete and will invoke startActivity(). So then the new activity will be pushed to the foreground, rudely interrupting the user. I can't start the activity before I start the download, because, as I mentioned earlier, the activity I start depends on the result of the download.
I would obviously not like to interrupt the user like this. One way to solve this is to refrain from calling startActivity() until the user returns to the app. I can do this by keeping track of the LoginActivity's onStop() and onRestart(). But I'm wondering, is there any way to create the activity while it is in the background? That way the user returns to the app and he is ready to go. otherwise he would have to wait for the new activity to be created (which could take some time because the new activity also has to download and display some data). Update: Guess what? I LIED! I could have sworn that starting this activity was causing it to come to the foreground, but I went back to test it again and the problem has magically disappeared. I tested in both 1.6 and 2.0.1 and both OSes were smart enough not to bring a backgrounded task to the front.
I'm trying to write a mediaplayer activity launched from browser. But I found if I launch mediaplayer activity from browser, it won't be shown in the task history window(long press home key). And if I launch mediaplayer activity launched from home, it can be shown in the task history window. Is there any way to make mediaplayer activity to be shown in the task history window when launching it from the browser activity?
View 2 Replies View RelatedIf my app is already running, then either Activity1 or Activity2 might be currently on top. How to construct an Intent so that it will simply show whichever Activity is already on top (in the task)? Just like if you touch an icon in the Recent list (long-press home). At the moment, it looks like (for explicit Intents) you need to be explicit about the Activity to launch. But I would rather be explicit about the app (package name). FWIW, I'm thinking of Intents triggered via Notifications.
View 3 Replies View RelatedIs there a non-root task-manager that I can use to end unwanted tasks? I don't really want to root my phone but I would like the ability to end apps (games, maps, etc.) when I'm done with them rather than having them run in the background.
View 1 Replies View RelatedHow to UN unrvoke
How to completely return to stock 2.2 no root no unrevoke
I have been told to use their s-on patch and then just install ruu wiil do it ?
I have three activities. Activity A start activity B by the method startActivityForResult, and Activity B start activity C by the method startActivity. Then, after starting activity C, activity B kill himself by finish(). Now the task stack stored two activities: A and C. My question is: how can I finish activity A when I finish activity C. or how can I clear the whole stack of the task.
View 5 Replies View RelatedI just started developing a simple Android application while I'm still learning its platform. I'm using Eclipse IDE with the ADT plugin 0.9.6 and I need to know if it's possible to view the activity stack that is associated with a Task. Is there any way through the DDMS tool or through any other technique?
Question related to Android Activity Restoration:
In my application there is a background Service from where I am launching Activities, Activity A and B. I am launching Activity A on some external events using "FLAG_ACTIVITY_NEW_TASK" (I need to use this flag to launch Activity A from Service, if did not then my application segments, Don't know why this happens) and Activity B without this flag. Activity Launching Sequence is as follows:
Service --> Activity B --> Activity A (With FLAG_ACTIVITY_NEW_TASK)
When we are in Activity A and we Hit Home key It returns to "Android Home" Screen and then after Selecting Application Icon, android does not launch Activity A again It displays Activity B. When we hit back key on Activity B it gets deleted (as it should) and then after Selecting Application Icon again It displays Activity A.
Why this might be happening? Have I explained it properly?