I have several textviews in an activity. I then have a button that I want to be able to click that will update the textview.
I want to do this without having to create multiple activities.
How do I go about I guess refreshing the current screen with new information?
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After implementing some Android Apps, including several Map activities, I try to refresh the activity when the GPS listener's onLocationChanged() mehtod is called. I have no idea how to tell the map activity to refresh on its own and display the new coords. the coords to store will have to be in global values, so that the location listener will have access to it. In my sample GPS-class (see code below) I just changed the text of a text view....but how to do that in map view?
View 2 Replies View RelatedWhat is the way to fresh an activity without calling finish- >startActivity all over again?
View 4 Replies View RelatedI have a START and STOP button in the main screen of an App. there are some GUI and threads that are instantiated when I click on START. When I click on stop, I want everything to be stopped and the activity should come back to its origin state. To the state that is exactly same like when launched (when we tapped on App icon in mobile).Is it possible to do this? I tried with finish() , this killed the app and exited . I don't want to exit from main screen. rather, on clicking STOP I want app to come back to origin or born state.
View 2 Replies View RelatedI have one activity. OnCreate the activity gets the source (html) of a web page to a string and presents the result (after parsing it a bit) in a textview. I would like the activity to reload/refresh periodically to always present the latest information.
View 1 Replies View RelatedI have created map view using XML layout in MapActivity and want to use this map view in another Activity group. I got mapview object in Acitivity group using GetWindow.Decorview(), MAP view is also displayed in the same layout of Activity Group. But without any image, only white background with some grid. Map view is not getting refreshed when i scroll on Map view. But if i launch independently MapActivity , i am able to see the map and it is getting refreshed when i scroll on the map. May I know how can i use and refresh Map view in an activity group? As Mapview can only be created/inflated in MapActivity.
View 2 Replies View RelatedI'm writing an application for Android and have multiple Activities, there are three to be exact. When a user drills down to the record they would like to view, they can modify it.
The issues is that when I click the back button to move to the previous screen, i'd like to refresh it to reflect the update performed by the end user. I can't figure out how to hook onto the appropriate event and then refresh my data on that view.
I have an Android Activity with a RelativeLayout and I have implemented the following method to prevent the activity from being recreated on change of Orientation:
CODE:..............
I am obviously not doing anything in this method, but it worked perfect when using a LinearLayout. Now however, using RelativeLayout, my layout is all messed up when changing to landscape orientation.
What is the most efficient way to have the screen redraw correctly without having the activity restarted again with a call to onCreate?
I have a ListView that contains some data from sqllite table.the table is updated by some other process, and I would like to refresh it's data.The strange thing is that if I open another activity, then go back -it WILL refresh itself.
View 2 Replies View RelatedI have been practicing with android for a while and read a few books but there is something I can not find anywhere even on the net. I am interesting in the activity manager and how it works. Especially how the activities are pushed on the stack then pulled, etc... I looked everywhere I could for such documents but the only things I could find were overall documents with not much details. I have downloaded the entire source code (cupcake branch) and started to have a look at it but obviously the code is big and very complicated. I was just wondering if an android google engineer somewhere or even somebody else who could let me know where I could find such information (whether it is a document, a link, etc...).
View 2 Replies View RelatedI need to pass a value back to the same activity and refresh the activity to generate new data. Can anyone please provide me some ideas/guidance on how to do it?
I had try using intent to call the same activity but it doesn't work. Here is the code which i tried to use intent code...
I am trying to create a simple Android application that has a ActivityList of information, when the application starts, I plan to start a Service that will be constantly calculating the data (it will be changing) and I want the ActivityList to be in sync with the data that the service is calculating for the life of the app. How can I set up my Activity to be listening to the Service? Is this the best way to approach this problem? For example, if you imagine a list of stock prices - the data would be being changed regularly and need to be in sync with the (in my case) Service that is calculating/fetching the data constantly.
View 3 Replies View RelatedI'm new to Android, and event driven code in general. Rather than embed loads of anonymous event listener classes in my Activity to handle onClick events etc, I defined separate classes to keep the code clean. Then I use them e.g. like this
myButton.setOnClickListener(new MyEventListener());
So, when 'myButton' gets clicked, MyEventListener's onClick method does some stuff.
I wanted to know the best practice for
a) accessing things in my Activity from the event listener. For example to change the text of a label. The onClick event takes a View in, but this is the view for the button that's been clicked, so if the label is NOT a child of my button, I can't use findViewById to get a handle to it. I've modified the constructor to pass in a reference to the label, so that the event has a handle to it but not sure if this is the most elegant way of doing it.
b) Passing information back e.g. when my event fires, I might want to disable some EditText fields. I'm thinking the proper way to do this is probably to dispatch another event from my event listener, that the Activity listens for, and when it sees the event, disables the fields in question. Is that the way to do it in Android?
I want to get the size of a view that is in my activity but I am not able to get that information in any of the activity lifecycle callbacks (onCreate, onStart, onResume). I'm assuming this is because the views have not been drawn yet. At what point are views drawn and is there a callback I can put my code so I can get the size of the view?
View 2 Replies View RelatedI basically have three activities X, Y, Z and I want only one instance of each but I want control over the navigation and I can't do that by putting all three activities in one task because of the stack structure.
Here is a scenario, from X I launch Y given a certain "id" which correspondence to specific data in the DB, Y inflates and populates it's views, then I go back to X and launch Y again with a different "id" in the intent, I don't want the overhead of launching the activity and inflating the views again, anyone know how to do this?
I tried using singleInstance, but the problem is that I can't send the result code back to an activity in a different task.
I want to display the status of the activity execution on the screen using the TextView while activity is executing. I am appending the String messages at different stages of execution in the TextView, which is defined in the Layout main.xml (e.g. TextView.append("Server started..").
For e.g. I am running socket communication application in which my android application is the server and it is receiving the messages from the local desktop. So in this application I want to show "Server started.." message when socket server on android started , then a messge "waiting for message.." and then "message receivied.." when message received by android server.All 3 steps are the part of a single activity.
But in my case, I am getting all 3 messages at a time after activity execution completed. Is there any API available, using which I can show the status during the execution also.
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 am a Mac user (photographer/ videographer). I also rely heavily on my iPod Touch when mobile (i can often find a wifi signal when i am out and about). I use iCal on the Touch and iCal on my Mac as well as the address book on both everyday and as a Mobile Me user, my two devices sync so everything is mirrored and up to date. I also HATE AT&T for their terrible signal strength and coverage and have been a loyal Verizon customer for many years and this is why I don't have an iPhone. Okay, all that being said, is there an easy way to still use everything I love and rely on with my Mac (the calender and address book, mainly) and easily sync all of my existing information and future info to an Android based device? How easy is it to use an Android device with a Mac? I don't want to have to manually re-enter my entire address book into a new device.
View 8 Replies View RelatedI knew how to refresh a web page by long press but that does not seem to work on the evo. Anyone got it to work?
View 12 Replies View RelatedI purchased the pro version about two weeks ago, and got a few themes that night. Now when I look in the theme gallery, the newest ones are from that date. Any ideas on why new themes won't refresh?
View 1 Replies View RelatedI am trying to root my EVO and getting stuck at a certain point.I am following the instructions/videos found here:[GUIDE] How to root Android 2.2 on the EVO 4G - xda-developers.I have followed the directions successfully up until I am instructed to me to boot with HBOOT USB and then remove the battery to restart, and run reflash.exe.I am stuck running unrevoked (reflash); the phone does not display the console but rather boots normally. The first time running reflash seems to be working normally until it reboots and searches for the phone, at which point hangs. Any attempt to restart the process will hang at Pushing Recovery Image. I have waited patiently over 10 minutes for each.After the phone fully boots it my computer lists in Device Manager now lists my phone under ADB Interface.I am using windows 7. I have USB debugging I have removed HTC sync (still have HTC drivers installed) and installed the Android Bootloader Drivers. I also am running reflash.exe as Admin.
View 12 Replies View RelatedIs there a way to refesh sdcard without turning off the phone?
View 5 Replies View RelatedI've got a bunch of live wallpapers for sale, and have a lot of 1-star comments that just say "Doesn't open". This is because there's no launcher activity, so the open button is greyed out after download. I'm attempting to fix this by including an activity that explains what to do, and I'm trying to avoid useless app clutter by disabling that activity once they've successfully used the wallpaper. This seems to work fine, the problem is the app icon doesn't go away right away. It stays in the app drawer and if you tap it you get a "this has been disabled" message. Eventually it will be removed if the phone is rebooted or if the home app is restarted. I'd like to clean this up. Is there a way to tell Home to refresh this list, or to otherwise tell it to remove the icon from the listing? It seems a bit rude to process kill Home for this purpose, and clearly something like this happens when an app is installed/ uninstalled.
View 2 Replies View RelatedI'm facing to one problem with ListView. I would like to refresh the ListView every time I change the base data.
View 2 Replies View RelatedI am developing file browser to my media player UI i have written in my OnItemClickListener() in that i called the method like adapter.notifyDataSetInvalidated() method but it is not working please help me to refresh my list.based on onItemClickListener() method.
View 2 Replies View RelatedI have looked EVERYWHERE and my little brain just can't understand a better way to refresh an activity. Any suggestions that I can understand would be great.Code...
View 2 Replies View RelatedHas anyone been able to refresh their stock browsers? If so, how did you do it. On my Hero would long press the screen and it would give you the option. No clue on the EVO.
View 3 Replies View RelatedI have an activity with a HorizontalScrollView. When it opens, I start filling this view (or rather, a container layout inside it) with another views. This is done from another thread by using handler.post.
The views are added in bunches of 15, and when there are no more views to add, I start updating them with new data (this is a kind of streaming data from a server).
The problem is that the scrollview is empty until all of the views are added. As soon as they are all added and start updating, the scrollview gets drawn.
How do I refresh it in the process of adding views? I don't want the screen to be empty for 3 seconds while all of the views are added.
I would like to make a Linear Layout that was created from xml invisible, and another Linear Layout visible to replace it. The replacement layout starts out as invisible. When I make the originally visible layout invisible, it still leaves space for it on the screen. How can I refresh the screen so that space is gone?
View 2 Replies View RelatedMy htc weather aplication does not refresh itself every hour like i tell it to! i have set it so it refreshes every hourut when i check it again the automatic update is not selected
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