Android :: How To Complete Tab Layout Tutorial?
Feb 23, 2010
I've been trying to implement the tab UI described in this tutorial: http://developer.android.com/intl/de/resources/tutorials/views/hello-tabwidget.html I follow all the steps described in the process but I keep getting a runtime exception which I believe has something to do with the fact that nowhere in the tutorial I added the extra activities (songs, artists and albums) related to the content of each tab into the android manifest file. Am I correct? is this tutorial (like many others) faulty or incomplete?
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Nov 19, 2010
Where to find complete tutorial for posting twitter status from android?
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Jul 1, 2010
I'm dealing with a problem you guys might not have faced earlier. I'm having a use-case in my Android application where the actual screen that I want to show to user is not stored in any layout file of my application. The layout of the of the screen is designed by server in this case, based on selection made by user on first screen.
Let me elaborate here,
1st Screen : List of check box with different biller names. (Imagine I've selected 2 billers from this screen)
2nd Screen : (The screen that server has decided how it should look like)
* Header,
* 1st Biller name (Label)
* Amount for 1st Biller TextBox
* Image (a Separator image)
* 2st Biller name (Label)
* Amount for 2st Biller TextBox.
* Here there can be a checbox/radio/another TextBox anything.
* Image (a Separator image)
* Button (to submit above form back to server)
I hope makes some sense in what I'm planning to design. The current issues I'm dealing with are as below.
1). How to draw this dynamic widgets?
2). How to fetch user Inputs from this dynamically created widgets?
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Aug 14, 2010
While developing for Android, I am unable to open more than one main.xml file in an Eclipse editor at a time.Each time I open one, it simply replaces the editor (tab) of the first main.xml with the new one, instead of opening a new tab - even if the contents of the existing tab were unsaved.Even stranger, I can open multiple main.xml files from different projects with no problems.This only happens when they're within the same project.
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May 4, 2010
I am new in android, i am having few problem in layout alignment. I have divide the screen into three layout,as header, body and footer. I am giving the height dynamically for the three layout in java file, so i need to give 12% of height to header and footer layout, and the remaining 75% i need to assign height to body layout. For that i have made the calculation as follow
first i am getting the height and width for the screen. With the help of the screen height i am getting the 12.5% height for header and footer layout
WindowManager w = getWindowManager(); Display d = w.getDefaultDisplay(); int totalwidth_screen = d.getWidth(); int totalheight_screen = d.getHeight();..................
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Jan 23, 2009
Is it possible to build a GridView object in XML with 3 columns and 4 rows of Image buttons? It doesn't seem to have similar containment relationship like LinearLayout or RelativeLayout viewgroups.
I want to do this entirely in an xml layout file. When I put ImageButton xml tags inside a GridView xml body, The layout panel in eclipse is throwing an exception: UnsupportedOperationException:addView(View, LayoutParams) is not supported in AdapterView.
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May 6, 2010
I have an Activity which uses a layout with a LinearLayout in it. Now I want to create in runtime a subactivity which loads some other layout and add this layout as item of my LinearLatout.
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Sep 27, 2010
I have following in xml
I wanna put the second linear layout at the bottom of the screen.
I have set the property of second Relative layout to bottom but still not showing at bottom..
code:...................
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Sep 6, 2010
I have LinearLayout. Inside to that i have added one more Linearyout ( checkbox & text ).
(LinearLayout) one textView, (LinearLayout) Checkbox,textview , one textview
Now whenever clicks the checkbox, i need to dynamically display EditBox after the checkbox.
code:..........
On the click of checkbox listener i added a code like below.
code:.........
I want to the layout which was added earlier.
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Nov 13, 2010
I'm on Mac OS X Leopard and installed the ADT plugin into Eclipse Galileo. I followed all these steps to get started:
http://developer.android.com/sdk/index.html
My SDK version is 2.2 API 8 revision 2 and I just used the Hello World tutorial found here:
[url]
When I first created the Android application, I saw this error in the Eclipse console:
[2010-11-13 18:20:43 - HelloAndroid] ERROR: Unable to open class file / Users/mydirectory/Documents/workspace/HelloAndroid/gen/com/example/ helloandroid/R.java: No such file or directory
I commented out this line to fill in the few lines from the tutorial:
setContentView(R.layout.main);
When I ran the app, it launched my emulator but all I saw was a vertical screen on the left that said "ANDROID" and phone buttons on the right. I did not see the "Hello, Android" text from the tutorial.
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Apr 17, 2010
I need to display contents of a list of objects. Capture the selected items and later process it. I have been trying to find a tutorial on net but in vain. Could some one please advise me when can I find a tutorial. I know how to display a list but I want the CheckedTextView option.
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Mar 5, 2010
I was working through the Notepad tutorial... http://developer.android.com/guide/tutorials/notepad/index.html ...and I seem to either have a misunderstanding of what is supposed to be happening, or the code is not working.
Below are two snippets of code from the tutorial to illustrate my questions/concerns:
It looks like this is the "menu" that is brought up when you have no items selected and you press the Menu key...
CODE:...........
This is the behavior that I expected and saw.
However, when I have one of the notes selected, I would expect this code snippet to run...
CODE:.............
But it doesn't. I can never get the "delete" option to show up in the tutorial.
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Apr 5, 2010
I've never used bettercut and am after a tutorial. I have this homescreen. want to change the GMail icon to the same green as everything else.
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Nov 11, 2009
Android has a limit to rum at MAX 20 concurrent AsyncTask. To handle this limit I created a AsyncTaskPool.java utility. Its not a pool in true sense but a kind of scheduler.
CODE:..................
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Nov 15, 2010
I'm on Mac OS X Leopard and installed the ADT plugin into Eclipse Galileo. I followed all these steps to get started:
http://developer.android.com/sdk/index.html
My SDK version is 2.2 API 8 revision 2 and I just used the Hello World tutorial found here:
[url]
When I first created the Android application, I saw this error in the Eclipse console:
[2010-11-13 18:20:43 - HelloAndroid] ERROR: Unable to open class file / Users/mydirectory/Documents/workspace/HelloAndroid/gen/com/example/ helloandroid/R.java: No such file or directory
I commented out this line to fill in the few lines from the tutorial:
setContentView(R.layout.main);
When I ran the app, it launched my emulator but all I saw was a vertical screen on the left that said "ANDROID" and phone buttons on the right. I did not see the "Hello, Android" text from the tutorial.
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Sep 3, 2009
I am using eclipse 3.5 with the ADT plugin.when I view layout xml files, i get two tabs in the view the source code view and a graphical view.the graphical view almost never works for any of my layouts.it usually shows "NullPointerException: null" at the top and nothing else. when it does work, it often does not match what i get in the simulator or device.it seems like this thing simply is not ready for prime time; although the idea is very cool.has anyone else had much success with it?
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Mar 15, 2009
I have defined the layout which you can see at the end of this message. I do not understand, why the button is not displayed. If I move the button to the top that the rendering works.
CODE:......................
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Nov 4, 2009
In android, there are different sub-directory under 'res'
* layout
* layout-finger
* layout-land-finger
Can you please explain what are the difference between these directories?
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Dec 23, 2009
I'm trying to run the Android Hello Map View tutorial app on the Android emulator. The Google Map view displays, but the tiles are blank.
Judging by the errors below (taken from LogCat) the app is unable to connect to the internet. The web browser on the emulator connects without problems. I've also double-checked the API key.I'm using the 1.5 Google APIs SDK, from Eclipse Galileo, on Windows XP SP3, behind a corporate firewall. I've tried two methods to add proxy information:Add -http-proxy http://www.foo.co.uk:80 to Additional Emulator Command Line Options in the Target Page in Debug Configurations.
Remove settings in 1. and add proxy information at Home > Menu > Settings > Wireless Controls > Mobile Networks > Access Point Names.
Neither seems to help. Any other ideas? Should I be adding proxy information within the app? If so, how? Sam Dutton, AMENDMENT: internet permission has been added to the manifest application element:
<uses-permission android:name="android.permission.INTERNET" />
12-23 16:43:31.624: INFO/System.out(717): waiting for debugger to settle...
12-23 16:43:31.828: INFO/System.out(717): debugger has settled (1480)
12-23 16:43:32.299: ERROR/ActivityThread(717): Failed to find provider info for com.google.settings
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Sep 21, 2010
I have followed the tutorial and can't seem to get it to work.
Here's my code:
CODE:...........
All I get are error message everywhere. What did I do wrong?
I followed everything the tutorial said to do.
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Apr 6, 2010
How to use list view in android. Basically I have an array with names of people which I wanna display on the screen. The user can click and select multiple names, the selections are to be noted down for further processing.
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Oct 8, 2010
Is there any documentation around how to interpret adb bugreport
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Apr 5, 2010
I would like to make an navigation application, but I don't want to use an openSource, because I want my to be payable. I have some question, what would be great if you can give me some answers or tips where can I check them :
- If I set my Target marker on the map How can the application know what is the way ? Why not set the route across buildings, park,etc... how are the other navigation application knows where are the streets, corners ? So How can link the graph nodes to corners and How can the graph ways to be streets ?
- I would like to use OpenStreetMaps or Google Maps for the mapping. Are these know the Traffic rules ? For example One Way streets ?
I'm looking for a tutorial witch may teach about navigation?
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Jan 12, 2010
Android 2.1 has API support for creating live wallpapers. This means that we can implemente our own live wallpapers w00t!
However what i like to see is a Tutorial on creating such a live wallpaper. Is there going to be added one? What about battery live?
Or maybe a link to the sourcecode to one of the live wallpapers in Nexus One?
When i run a 2.1 emulator and choose a live wallpaper it says: "No live wallpapers"
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Apr 7, 2010
I'm having some difficulty figuring out the best ways to pause and resume my application. Is there any comprehensive tutorial or something similar that would help me make sure that I'm not missing any important steps?Mostly I'm just worried about not dealing with the memory being used by my application. There's a few apps I own that when you minimize them slow down the rest of the phone to a stand still and I want to make sure to avoid that.
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Feb 1, 2010
Does not compile. Indeed: even in 1.5, this api, getIntent(), is already listed as deprecated. The error message I get complains that getIntent() does not return a String, but setCurrentTab() expects a string. If I guess and change the line to read: tabHost.setCurrentTab(1); // was setCurrentTab(getIntent())", then it compiles, builds, but does not run. I get the "stopped unexpectedly" error message from the emulator. I cannot even get Log.d to output, so it seems that it stops 'unexpectedly' very early. So the first and main question is: what is the correct fix to "tabHost.setCurrentTab(getIntent())" in the final line of On Create() in http://developer.android.com/resources/tutorials/views/hello-tabwidget.html? The second and simpler question is: did I guess right in replacing 'mTabHost' with tabHost in the one place where that occurs?
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Sep 27, 2010
I'm working with the HelloGoogleMaps tutorial on the Android Developers' Resource page (http://developer.android.com/resources/tutorials/views/hello-mapview.html) and when I run part 1 of the application ("Creating a Map Activity") on my emulator, I get the message "The application HelloGoogleMaps (process com.example) has stopped unexpectedly. Please try again." I'm pretty sure that I followed all of the instructions correctly, however I'm not sure that I set up my emulator environment correctly.
Here's the output from logcat:
CODE:......................
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Sep 27, 2010
I am new in android devlopment
i want to know how to upload an image in android
i don't found any useful tutorial for this
can u give me some instruction.
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Mar 22, 2010
If i wanna use the opengl interface in android ndk， then will it be possible to show
me a simple tutorial to let me master the android ndk？
i just wanna know how to operate in android ndk first.
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Oct 29, 2009
Could you recommend a tutorial for custom Layouts / ViewGroups? I couldn't find one.
My first project is to move the functionality of a GridView + Adapter to a ViewGroup, to put the enclosed Views in a grid.
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