Android :: Make Sure An Activity Is Displayed Before Another?
Aug 19, 2010
I have some activities and I have to display a fullscreen ad image before displaying the activity... all my activities extends a custom activity and I thought it was a great idea to implement that advertisement there, so I did: code...
This works nice... the ad is displayed for 3 seconds and it closes automatically. The problem is that the activity that should be hide for the ad is being created faster, so the user can see it for a second before the ad is created. How can I avoid that behavior? How to make sure the ad activity starts before the another does?
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Apr 9, 2009
When MountService received event from HAL and start a notification, it would display an AlertActivity after user's click. However, I found the AlertActivity is created and can't be displayed.
I got some log as below:
CODE:........
Is it related to "FLAG_ACTIVITY_NEW_TASK"? however, how to solve it?
I've tried to use "launchmode as singleTask", but is doesn't work.
Is there anyone give me a hand? Why my activity can be created but can't be displayed?
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Apr 22, 2009
Is it possible to get listed the apps or activity which are actually displayed on the screen of the android mobile. I need to display a text box on some event when no acitivity is displayed, excepting the home screen.
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Mar 31, 2010
I was wondering if anyone understood how to make your application be displayed when you unlock the screen. I have an application where the user turns on a Bluetooth device, it connects to the phone, and the user should be presented with a UI. Having them hunt for the app or using the notification menu is not a workable option (too much work and not the obvious behavior).
The problem is that:
When the screen is unlocked:
- you can popup the activity from the background service when Bluetooth connects to a device
- User is happy because the UI is right there
When the screen is locked:
- The application gets started but is destroyed
- User unlocks the phone and nothing is there but the homescreen
One work around would be to disable the keyguard when the application gets woken up but the nuclear option is a pretty bad option. I know the standard Android assumption is that you shouldn't do this. In the normal case this behavior is fine, but in this case I explicitly did something I want the phone to respond without adding more work for the user to do. As per Google's guidelines if you don't like this behavior there can be an option for you to turn this off or you can not use the application.
A few more details, so after looking at this a bit more the problem isn't necessarily that you can't have an activity running when the screen is locked, unlock and expect it to be waiting. That does work if you do something like the following: lock your device run an app through Eclipse while the phone is locked/off unlock and it will be waiting for you.
But in the case the Activity is already running and I'm brining up a new window (which happens to be a transparent one, saying you're connected and asking what they want to do).
The problem is that it gets killed
CODE:..................
The setup here is as follows:
MyBackgroundService is a serivce that handles Bluetooth state (waits for connections, turns on Bluetooth if the user starts the app, etc.). It triggers a popup BackgroundPOPUP activity that runs a ViewFlipper.
MyBackgroundService starts BackgroundPOPUP through an intent.
BackgroundPOPUP is an activity with a Translucent theme (Theme.Translucent to be precise), it shows a ViewFlipper with some instructions and presents some options.
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Apr 9, 2009
Step 1: I am subclassing WebView and rendering html content properly. The intial content is very small with a div and image /link This is displayed in a LInear Layout along with a TextView and ListView. That is my first screen/activity of the application.
Step 2: When I click on a link on this webview, it goes through the webViewclient and expands to full screen to fit the content of the requested page.
After Step 2, I am not able to go back to my activity screen once the content is displayed. When I click on the back button to getback to my activity screen close my activity and goes to the phone's applications desktop. (i.e goes out of my application).
Step 3: In order to fix this issue, I stopped setting my own subclasssed WebViewClient. After doing this, the it seems to render the clicked page in a webView as subactivity. Now When I click on backbutton, it goes back to the activity screen. But, the issue now is, I am not catch event when a link is clicked. How can I catch click events in this case.
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Aug 4, 2009
i have a set of activities on my stack Say A-->B-->C. when i launch the activity named 'D' it should get fired as the root activity of my application and all the other activities(A,B,C) should get cleared from my stack once Activity D is launched.Can any one tell me as how to do this
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Aug 21, 2009
when I click on launcher it does not show displayed activity log for launcher, it shows it way before during boot up stage. why is this happening?
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Nov 1, 2009
Our application displays widgets that update every minute through Alarm. It works fine under 1.5 and 1.6 but since 2.0, widget is not displayed at all. Only initial layout is displayed.
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Jan 7, 2010
Is it possible to make 2 MapView on one Activity ?
If so, How to make it ?
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Sep 25, 2010
I want my activity to appear in the list of activities (gallery. live wallpapers, etc) that you see when you try to choose a wallpaper from the home screen. Im assuming this is done with intents but cant seem to find one that works. The closest one I can find is:
<action android:name="android.intent.action.ACTION_SET_WALLPAPER>
but that doesn't work and seems to be used for something else.
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May 19, 2010
How do I make an activity full screen? I mean without the notification bar. Any ideas?
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Jan 11, 2010
How can i make an activity go to background without calling its finish() method and return to the Parent activity that started this .I tried so much but it really dint help.So if you guys could help i would be very thankful.
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Apr 23, 2010
I wish to go from my home screen in my app to a second screen. where i can develop som kind off settings menu. i can't find any kind off guide to it. and the help cos i find normaly don't work.
Question: I goth this code with make a textview to rise ore go down but i with to dublicate it. his is my code. for button for minus. but if i wish to dublicate it what is the code for that?
CODE:...............................
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May 26, 2010
I have activities A and B. The A is the one with LAUNCHER intent-filter (i.e. the activity that is started when we click the app icon on home screen). A launches B using start Activity(new Intent(A.this, B.class)). When the user has the B activity open, and then put my application into the background, and later my application's process is killed, when the user starts my application again, B is opened instead of A. This caused a force close in my app, because A is the activity that initializes the resources my app needs, and when B tried to access the uninitialized resources, B crashes.
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Mar 14, 2010
Is 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)?
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Jul 19, 2010
For some reason, one activity (launched in a new process) often takes longer than 10 seconds to start, which exceeds the LAUCH_TIMEOUT defined in ActivityManagerService.How do I make the VM tolerate longer launch time without giving up wake lock?
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Feb 15, 2009
Ben Williamson wrote: > I'm working on a social bookmarking tool and I was hoping someone > could help me figure out how to give an option to make my application > the default application for bookmarking. I've noticed Steel has the > option to set it as the default web browser, Exact call log has the > same ability for the call history.... anyone know how this is > accomplished?
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Feb 24, 2010
I am currently firing an Intent to a Broadcast Receiver which in turns starts an Activity.
Then from the same Service another Intent is fired to a Broadcast Receiver thats in the Activity.
The problem is that the Activity isn't getting the Intent meant for it because it is fired before it is alive and the Broadcast Reciever is registered.
I was wondering is there anyway to make sure an Activity is alive before sending an Intent?
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Oct 18, 2010
I have list activity with custom array adapter and I can't to get context menu when make long press on list item.
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp">
<ListView
android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
Why I do not see context menu? What I do wrong? How to get context menu with array adapter and ListActivity.
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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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Jan 29, 2009
I was making a location based service applictaion but i was not getting maps rendered in to my mapview . i checked the ddms log i saw an error in mapactivty tags "couldnt get connection factory client"
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Nov 10, 2009
Is anyone else goggle voice displaying in the app as Name: Name - message? it's not that big of a deal it just kind of bugs me that the name is displayed twice.
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Jun 22, 2010
I have got a LG GW620 T-Mobile UK version running Android 1.5. I have setup my hotmail account but can only see the Inbox folder. Is there anyway to display all the other sub folders I have created e.g. Sent. So I can move email to the subfolders.
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Feb 28, 2010
My program doesn't work correctly with Android 1.6 (running on Acer), it works correctly with others devices. Apparently, my xml view is not correctly understood with this device (or Android version). With Android 2.1 all is ok, but with Android 1.6 I've a second scroll bars displayed (one for webview another for the scroll view), my last relative layout covers the webview which is not displayed completely. I know that an issue was existing with Android 1.5.
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Feb 23, 2010
For a particular activity - what is the best way to store data that needs to be displayed. The issue is that when the user changes orientation, you need to be able to re-render your activity which means you need to get back at that data that you use to render. I understand the MVC design pattern, but I guess I'm wondering where the M should be stored. Global variables? Static members of your activity? Serialized to private storage?
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Nov 12, 2010
I have a list view with array adapter to show user some information that retrieved from Internet, As we all know reading data from Internet requires some time to finish, but if I try to read data on getView(), it means user must wait and he/she cannot see anything at that time, the screen is black for long a time because it will cost too much time to finish. This is unacceptable.
So I think maybe I can show user a empty list view first and then display a progress dialog to let user know I'm now just reading data. The background task will read data and send message to UI thread when job is done. But there's one problem: I don't know how to get notified when list view is displayed. I mean, I want to know when & where to show that progress dialog when I first show user an empty list?
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Aug 5, 2010
I have a service class written which gives notification(Toast dialog) on every life cycle method call back. when i run my application all works well. but when run this service class from my test project the toast message are not displayed.
It give the following log for the toast message
CODE:.............
I want that the toast message should also be displayed on subsequent calls to life cycle methods
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Oct 27, 2010
I have created a textview with the below code:
CODE:.........
As above, i have set the 5 Lines as maximum for the textview.
But my doubt is: if the string which i am going to display in Textview if it exceeds 5 lines, then it will be fitted upto 5 lines ending with "..." characters.
e.g.
Hello this is the demo of
string which i have
created especially for
the demo of textview
and setting maximum...
As same as above, i want to display in TextView output.
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Sep 8, 2010
I have the following situation. Attached is a snippet of code that appears in the OnCreate of my Activity.
CODE:..........
The issue is that my layout never gets displayed until the OnCreate method has compoleted. Since my 3 functions takes about 10 secs to complete, I have a blank screen being displayed for 10 secs. This layout has a progress bar which meant to show the progress thru each function.
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Jul 17, 2009
This is with reference to http://groups.google.com/group/android-developers/browse_thread/threa....
Large gif images of size more than 4MB can not displayed in android.
Is this is a known issue in android?
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