Android : Swap LinearLayouts From XML During Runtime (droid)?
Feb 19, 2010
I am trying to create an option in my code to change layouts using preferences. I already have the two layouts created in XML, but I can't figure out how to swap between the two during runtime. I would like to cause it to check during onResume() since it is called directly after returning from the Preferences screen and when starting up, however I can't figure out the code necessary. I tried just using setContentView() a second time, but it didn't seem to work. What can I do?
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Jul 27, 2010
Is it possible to load my main.xml layout file in onCreate() and then later in the app, switch to a new XML layout? I've tried placing setContentView() later on in the app but that seems to not actually set the new View because my references to objects in the newly set xml layout file are returning as null. I've tried doing some layout inflating using the LayoutInflater but I'm having no luck (I'm probably doing something wrong)... So is there any other way to swap layout xml layouts at runtime?
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Jan 28, 2009
At the moment I'm using the following layout.
http://paste.pocoo.org/show/101642/
Module one and two get added in code. Now I'd like to have a 10px spacing between the two modules. I have tried to set "layout_topMargin" to the parent LinearLayout but it doesn't work. In addition I have tried to set this parameter to the LinearLayout modules. But well it doesn't work. It always looks like this:
http://dl.getdropbox.com/u/287197/Hierarchy%20Viewer.jpg (the two modules are surrounded by a border)
Do I really have to put a dummy (spacer) view between the two LinearLayouts or is there another possibility?
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Aug 6, 2010
Wanna to split a screen for my app with two LinearLayouts. What parameters should I use to make exact splitting in two equal parts - first LinearLayout on the top and the second one is just under it.
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Mar 2, 2009
1) I am developing my app in Eclipse 3.4.1 with Android (ver 1.1_r1) plugin. My app compiles and executes without errors when using the Eclipse IDE.
However, when I export my app (unsigned) using Eclipse (via {select project} >right-click>Android tools>export unsigned application package), sign it, and try to run it on the Emulator, it throws a runtime error when I try to update my sqlite database, at which time the specific error created is: SQLite error#14, unable to open database. It is able to read from the database without problems. (I have also verified that the database is: open, is not readonly, is not locked by another thread, is not in the middle of a transaction.)
I have limited experience, but this seems more like a "system" problem given that the app works OK in Eclipse IDE but then fails as an exported/signed apk. Some googling of SQLite resources revealed a similar error on a non-Android platform which was fixed by: "Set your permissions correctly on /var/tmp, or whatever directory you are using to hold temporary files".
Does Android have temporary files, and if so how does it handle permissions on temporary files? Is there a way to check or set these permissions to see if this fixes my problem here?
2) Not sure if it is related, but after I have run the exported/signed app which causes the runtime error, if I reboot the Emulator, and try to run the program using the Eclipse IDE , the program fails with the same exact error. PLUS I also noticed the following error message while the program is installing/running: 03-01 22:22:29.282: ERROR/PackageManager(53): Package com.northwestradiology has mismatched uid: 0 on disk, 10019 in settings; read messages:
I can restore the Eclipse version of my program to be able to execute without runtime errors by utilizing the -wipe-data option for the emulator. But note that if I run my signed APK using an emulator created with the -wipe-data option, it still throws the runtime error listed above...
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Jul 19, 2010
Can I just swap the SD card from my Droid to my X when I get it today, and restore the apps with Astro File Explorer? Or, is there something specific to the Droid on the card that would cause a problem?
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Dec 29, 2009
I'm from Argentina and this is mi 1st post, sorry for my poor English.
My doubt is if Adobe AIR runtime, for desktop apps, can be installed and run on Android.
Recently i get a smartphone (Droid phone) and i want to use the multi- touch API launch by Adobe, to mobile devices, and is ideal to test on the smartphnoe directly, only if Adobe AIR can be run on Android ..
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Aug 27, 2010
anyone out there, besides me, trying a swap app like Swapper for Root? The logic seems sound, like with computers, to setup a swap file on the SD card since our internal memory is so meager.
I admit, I can't say I have "noticed" much of a difference in the last week. And my lag of app icons showing up - many report this in 2.2 mind you - has not improved, but just curious if others have tried a swap app of some type and noticed a benefit on the Droid D1's?
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Jan 15, 2010
I am getting a new droid on Monday as my gps dose not work on mine anymore and i have read many many post about how when someone swapped out there droid that the apps they purchased didnt transfer over and they had to repurchase them and how nothing at all transferred over to the new phone. has anyone had a swap go with out any problems? everything transfered to new unit just fine? was there anything you did to make sure this happened? repurchasing the apps wont break my bank but why should i have to
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Sep 11, 2010
I've been looking for information about using ext and linux swap partitions today and thought I would ask here from more experienced users. If I understand things right most ppl use the ext partition for apps2sd but with froyo this is build in. So is there any further benefit to creating an ext2/3 partition? I've also read a few items on the linux swap partitions and its usefulness on older phones like the g1 but with the droid is this even needed? Arguments can be made for and against the linux swap but im looking for opinions or experience using it with the droid.
I know some roms make use of these from time to time but is there any benefit to using either type of partition on a rooted droid running the stock os. I try roms from time to time but stock seems to suit me better since I can run the wifi teather and overclock my droid up to 1.2Ghz and then remove the stock apps I don't want.
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Sep 23, 2009
I am writing an widget application for android.
I have a requirement where i need to disable the widget on some intent, i.e., I have the remove the widget from the android home screen and remove from menu options so that the user cannot add the widget further.
I have to enable the widget on some intent, so that, the framework automatically adds the widget to the home screen, by calculating the empty position available on the home screen, and the many option re-appears in order to add the widget further.
Please let me know if this can be possible..
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Feb 15, 2010
I want to display Battery level stats in my app. How can we obtain such information like Battery Power, Battery Voltage, etc.?
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Nov 20, 2010
My application requires 2 screens and for this I have created two different XML layout files using RelativeLayout. One layout file loads whenever I run my Activity. Now I want to load the second layout on to the same Activity , when user click on a button in OptionsMenu and also when user press Back button the first screen loads instead of exiting the application. So that i don't need to create another Intent in my application.
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Mar 7, 2010
I've got some XML resources in my Android app. Each one has a different name like "bicycle.xml" and "car.xml". I'd like to know if there's a way to load resources based on conditions during run time.
As an example...
Say I had a text input in my app. When the user enters "bicycle", my app can look up an XML resource by that name, parse and load it. Whereas if they enter "car", they would end up with the data from the other XML file.
I've noticed so far that to load resources, you have to use the autogenerated "R" class, which restricts you to hard-coding resources at compile time.
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Oct 14, 2009
I trying to understand how a new process is being created based on AndroidManifest.xml, also looking for the possibility of creating/ forking a new Java process/new DVM instance at runtime.
I could find that using Runtime.exec one can issue system commands or launch native applications, but this is not what I am looking for, I am looking for creating an equivalent java process just as the parent java process.
Can I launch an installed android application at runtime from another android application? Whats the way for doing this?
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Jun 14, 2010
I am getting a run time exception
java.lang.RuntimeException: Your content must have a ListView whose id
attribute is 'android.R.id.list'
I don't know what is wrong> code...
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Nov 8, 2009
I would like to know if it is possible to swap the top and bottom pull out menus?
Also, if the phone is shut down will the alarm turn it back on?
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Aug 15, 2010
Right now I have 2 activities (A+B) and what I would like is for only 1 of them ever to be on the stack (If A shows B, I want the back button from B to go to the home screen not A). Is their a good way of doing this with activities Or should I change my app to be a bunch of views?
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Jul 31, 2010
My droid has a broken 'a' key. Is there any way to swap it's function with a less commonly used key, like 'z'?
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Aug 23, 2010
Brand new to android, and loving it. But with the release of the Audible app and various music files, I'm going to fill my little 2GB card soon.
How would I go about switching to a larger capacity card? I'm not worried about data files, I know I can copy all of that stuff off the card, but what about any apps or app settings that might be stored on the card? If I simply copy the entire contents of the card to a new one, will everything "work" when I start the phone up? I confess I don't really know much about the android guts, but I'm willing to learn!
Phone specs:
1.) Model Number: Samsung Intercept SPH-M910
2.) Firmware Version: 2.1-update1
3.) Baseband Version: S:M910.05 S.DF27
4.) Kernel Version 2.6.29
5.) Build Number Samsung ECLAIR.DF27
6.) Carrier - Sprint
7.) US
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May 6, 2013
I created an android application project and have dug through the code and It is unclear how I'm going to set separate views for each list item. The original code is as follows
Code:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_item_detail, container, false);
[code]...
On reviewing this code it is clear that the view hasn't been changed, only the content has been changed from the dummy item. I would prefer to have each dummyItem have its own view, layout, etc.The code for establishing these views are in the dummy content
Code:
static {
// Add 3 sample items.
addItem(new DummyItem("1", "Live"));
addItem(new DummyItem("2", "Settings"));
addItem(new DummyItem("3", "About"));
}
What I would like to do would be more like the following where each item would have its own view and layout.
Code:
static {
// Add 3 sample items.
addItem(new LiveDummyItem("1", "Live"));
addItem(new SettingsDummyItem("2", "Settings"));
addItem(new AboutDummyItem("3", "About"));
}
I thought there may be some type of container I can use to swap views in and out or possibly that I may be able to grab a view from the dummy item itself.
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Nov 6, 2009
I am trying to swap the position of two buttons. My swapping code looks as below.
private void exchangeButtons(Button btn1, Button btn2) {
// Create the animation set AnimationSet exchangeAnimation = new AnimationSet(true);
TranslateAnimation translate = new TranslateAnimation(Animation.RELATIVE_TO_SELF, btn2.getLeft(), Animation.RELATIVE_TO_SELF, btn1.getLeft(),
Animation.RELATIVE_TO_SELF, btn2.getRight(), Animation.RELATIVE_TO_SELF, btn1.getRight() );
translate.setDuration(500); exchangeAnimation.addAnimation(translate);
// int fromX = btn1.getLeft();
// int fromY = btn1.getRight();
// int toX = btn2.getLeft();
// int toY = btn2.getRight();
Log.d("ArrangeMe", "view1 pos:" + btn1.getLeft() + ", " +btn1.getRight() + "view2 pos:" + btn2.getLeft() + ", " + btn2.getRight());
AnimationSet exchangeAnimation1 = new AnimationSet(true);
TranslateAnimation translate1 = new TranslateAnimation(Animation.RELATIVE_TO_SELF, btn1.getLeft(), Animation.RELATIVE_TO_SELF, btn2.getLeft(),
Animation.RELATIVE_TO_SELF, btn1.getRight(), Animation.RELATIVE_TO_SELF, btn2.getRight());
translate1.setDuration(500); exchangeAnimation1.addAnimation(translate1);
// EXECUTE
btn1.startAnimation(exchangeAnimation);
btn2.startAnimation(exchangeAnimation1); }
I call the code as below:
exchangeButtons(button1, button2);
My layout looks as below:
what happens when I execute the code is, instead of the buttons exchanging their positions, they just disappear for sometime[may be 500 ms] and reappear as they were originally.
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May 8, 2009
I need to load several url to a webview in animated transition. i used 2 webviews; prev_view and next_view. if we click on next button, next_view will appear with right to left animation covering the prev_view underneath. on back press. next_view will move left to right showing the prev_view. as i have 100 urls(local html files) to load on webview, each time i need to load new url while animation but it does animate the old one and after animation end shows the new url. is it possible to disable the cache and load new url while animation?
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Jul 21, 2010
Suppose I have the following layout
CODE:......................
How could I swap position of button01 with button02? And would it work also for swapping button01 with button05?
Before asking what I have tried so far, I don't even know where to start. I googled but the only answer I could find was about AbsoluteLayout.
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Oct 27, 2010
What does it buy you?
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May 28, 2010
Probably really simple, but how do you swap calls over if another call is coming in on the hero? All I end up doing is disconnecting both of them?
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Jun 10, 2010
I heard that the 8gb sd card that came with the evo had some files on it that were used to boot the phone. I want to upgrade to a 16gb card. do I have to do anything spiecial to swap them out?
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Dec 13, 2012
is it possible to use swap on a sd-ext partition? I started to use simple 2ext and I don't know if it's that possible.
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Oct 29, 2012
I am using cm7 nightly on my galaxy ace, I have swap partition, ihave A2SDGUI and this script, catch to sd working, but swap not working.
How can I enable swap?
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Nov 10, 2012
I rooted My My micromax A87 with XDA and I was Succeeded in It, and then I Partitioned my SD Card into three,(FAT-32 + EXT 3 + Linux Swap) with Parition Mini Tool.then I Installed Link2SD and Swapper 2 its all fine but microsd is too slow to Link and Swap because its (Class 4).but it run the temple run and some HD Games with Small Lag.
So I Experimented with other swap tools like "MemoryInfo & Swapfile Check and ROEHSOFT RAM-EXPANDER (SWAP)"and then Uninstalled these. but there is the problem starts. Now in my A87 it shows a swap cache always on. I opened adb shell and look for free.
I wonder that there is a swap file generated around 50 MB but I cant see it in my External SD or Internal Memory.So I Removed my SD Card and then check again, Still I see the same swap value 50 MB.
My Internal memory has no change in the value (available space not reduced) it looks like the same value before I Install the MemoryInfo & Swapfile Check + ROEHSOFT RAM-EXPANDER (SWAP).
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