Android :: How To Display Each View Once As They Are Loaded
Apr 6, 2010
I have an Android application that works off of a smaller database, around 300 entries. To view the database, I have created a custom view that contains individual rows of data. Then I query the database, and add each line to a newly created custom view.
The problem is that it takes a little white for all of this to be created/loaded, so when you open the application, it sits for a few seconds.
How can I load one line of data, then display it, then the next, append it, etc.?
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Apr 13, 2010
I have a huge UI, in which I have about 300 to 500 rows of data (Horizontal Linear Layout), with each row containing 3 to 4 views. If I load all the UI at once, it takes a long time. How best I can display this UI?
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May 4, 2010
Is it possible to disable title bar display dynamically after setting the content view by setting the NoTitlebar theme?
All the posts I have read told that any title bar changes we can make only before setContentView() call.
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Jul 21, 2010
I use http://stackoverflow.com/questions/541966/android-how-do-i-do-a-lazy-load-of-images-in-listview/3068012#3068012 to load images in a ListView and a GridView. It works but the images are loaded form bpttom to top. How to fix that?
Bonus Question: Can I use a loading animation in a image view while the real image is loaded? Right now it's just a default image.
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Aug 5, 2009
I have been working on an application which deals with maps. I would like to know how to generate infowindow [popup window like we seen on google maps and also on the google maps app on android too]. Can anyone here help me with this ? Also how can we get an image from the street view for a particular latLng, i.e like the one which is seen on the google maps app on android, if you do a longpress we can c an image.
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Jul 11, 2010
Is there any way to get navigation to display in a 2D view like google maps our are we stuck with the 3D view?
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Jul 19, 2010
I've made a customAdapter that accepts an ArrayList. The ArrayList contains a title and then a link. code...
I'm wanting to display the title and then have the on click listener to have the link. I'm having trouble however figuring out a way to do this.
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Jul 29, 2010
I want to display the grid view elements in only one row that means i want horizontal scrolling in grid view.Each time i want to display only 5 elements only in one row.
Below is the my layout code
CODE:.....
In that above code now i want to remove the that 2 image view and set the horizontal scroll to that grid view elements.For this give me some suggestions,Thanks in advance
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Aug 30, 2010
I am generating a custom View that contains a number of drawables that are added to the View dynamically. This means the View's size could be anything, and is likely to stretch off the screen. Where it does stretch off the screen I want scrolling to be enabled.
So far I have tried:
adding the custom view directly to my Activity - this displays the drawables ok, but with no scrolling
adding the custom view as a child to a ScrollView and setting the ScrollView as the content in the Activity - this doesn't display anything.
How do I generate a custom view of arbitrary size, display it and have scrolling where it is too big for the screen?
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Dec 21, 2009
I'm trying to process text which i'm receiving from a RSS feed. In this feed all special characters are defined as numeric entities. When i try to display these texts in a Text- or Web View, it stops displaying anything after encountering the numeric entity.
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May 15, 2009
Surrently I am developing a quiz application. the quiz pattern is one question and four answers. for answer cell i am using text area. and its working fine , but now i want to show some images in Answer cell. how i can do this ? can use different view ? which view able to show text as well as image at same time.
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Aug 4, 2010
I want to display the number of images according to one number.That means if number is 1 i want to display only one imageview in grid,if number is 3 i want to display the 3 images in grid .But i take only one image that means depending on the number that image will be displayed.
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Sep 21, 2010
Can anybody tell how to display background image in a TextView in android?
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May 13, 2009
I am trying to add a webview in my app to display a web page. However, every time I click link on the web page, Browser will be launched to display content in that link. I understand it is something about intent but I am still wondering is there any simpler method to ask webview to display link content within its View ?
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Feb 13, 2010
I have a list view having several items and it is multichoice list. I want to display the checked item of list view. how i can do this.can anyone help me?
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Sep 18, 2009
can any one tell how to display the List with an Image in the left side of the view.
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Sep 26, 2010
For an Android application, I'm trying to use a Spinner which, when an option is selected, will hide/display relevant View objects. For my application, these objects are an EditText and an associated TextView label for the field. Unfortunately, I can't seem to get the EditText to hide/display, and when I add it code to hide/display the TextView, I get a NullPointerException. I presume that since I am laying out the view objects in a RelativeLayout, by hiding one of the view objects, I am removing its relationship with other view objects, hence the NullPointer.
Can anyone figure out why this might be happening? Here's my code...
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Sep 15, 2010
I want to show Error(log) messages from catch block. How can I show all messages(stack) on a single Screen, so that user can get an idea?
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Jul 12, 2010
I am calling one webservice.Result of webservice I am storing in an Array list. Result of webservice I want to display as list view. For ListView I am using SimpleAdapter. and SimpleAdapter is something like this:- SimpleAdapter adapter = new SimpleAdapter(this,hashmap, layout, from, to);
I am not able to put array list into hashmap. Is there anyway to do this?
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Sep 29, 2010
I never do graphics type programming. I'm designing a screen that will need to look good on all phones, and all resolutions. It's for displaying in a list view, and there will be a small graphic for the summary view, and a larger graphic for the detail view. Normally I use a 32x32 (res 72x72ppi).png for the summary view which looks good on my G1. The second image is for the detail view and it basically should fill the entire width of the screen (roughly, it's ok if it doesn't use the entire width as long as none of it is chopped off). The size I use for my G1 is 468x60.
So, the question for the guys that really know this stuff is: What sizes do I need to make these images to support all screens and densities with the fewest number of images? I know that the answer is a little subjective, but I remember seeing a post with a link to a page that recommended 3 different images for the different screens (and it seemed to make sense when I read it), and I think but don't remember for sure that then you would need 6 layouts to support those with both landscape and portrait orientations.
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Nov 3, 2010
Often, a simple of ArrayAdapter does what I want and during early development I will provide the android.R.simple_list_item_1 for the view id required by the ArrayAdapter constructor. Is it possible to provide a customized view which is based on the android.R.simple_list_item_1 to the ArrayAdapter constructor?
I do not fully understand Android's 'include' functionality, but what I would like to do is something like:
Define a new TextView based on customizing the android.R.simple_list_item_1.
(I have no idea what the valid syntax would be)
code...
Reference my customized TextView. I assume that something like this would go into my layout directory. Then in my code I would do something like:
LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.id.MyTextView, null);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, view.getId(), myArrayOfData);
Is this possible and if it is, what is the appropriate syntax to accomplish what I want?
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Jul 8, 2010
I am a new to Android stuff. I am creating an application that contains a list view that will get dynamically populated. My requirement is when the list is empty, I would like to show a message. I don't want to create additional views just for displaying this message. Is there any nice way to do this? Any suggestions?
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Nov 19, 2010
I have parsed the xml file. now aim is to display contents using list view as dynamically..
How it is possible?
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Mar 4, 2010
Is there any way to show a message such as "No results" when i filter a list?
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Oct 7, 2010
When using this class I get this strange exception. It is used to print out a nice timer display for my game, and is created when my main GameView class is created. The error gets thrown at line 26: super(s*1000,1000);
package tommedley.android.game;
import android.content.Context;
import android.graphics.Canvas;...
public static int MODE_COUNTING = 0;
public static int MODE_PAUSED = 1;
public static int MODE_FINISHED = 2;...
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Jun 8, 2012
I have a png file in my res/drawable-ldpi folder. I'm working in Eclipse with the emulator, but I've tried this on my 2.2.1 Android phone and I get the same behavior. I have an ImageView and I want to set the src programatically, based on a database call. If I just put
Code:
src="@drawable.norusdpyr"
in the Activity's XML file, the file displays fine. BUT, if I put
Code:
String imageresource = "R.drawable." + parsedData[4].toString();
chart.setImageURI(Uri.parse(imageresource));
where parsedData[4].toString() = "nor_usdpyr" I don't see anything. I've also tried
Code:
String imageresource = "android.resource://" + getPackageName() + "/R.drawable." + parsedData[4].toString();
chart.setImageURI(Uri.parse(imageresource));
and
Code:
InputStream is = getClass().getResourceAsStream("/drawable/" + parsedData[4].toString());
chart.setImageDrawable(Drawable.createFromStream(is, ""));
and
Code:
String imageresource = "R.drawable." + parsedData[4].toString();
File file = new File(imageresource);
chart.setImageDrawable(Drawable.createFromPath(file.getAbsolutePath()));
and
Code:
Context context = getApplicationContext();
int ResID = context.getResources().getIdentifier(imageresource, "drawable", "com.KnitCard.project");
chart.setImageResource(ResID);
finally,
Code:
chart.setImageURI(Uri.parse("android.resource://" + getPackageName() + "/R.drawable.nor_usdpyr"));
doesn't work.
None of these work. What am I doing wrong?
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Sep 24, 2012
I have two list view which is display data from the web service.
List 1 -- with different background
List 2 -- with different background
I have two ArrayAdapter<String> to handle the values. I have issue in the display. my xml file is structured as
<Linear Layout>
<ListView> </ListView>
<ListView> </ListView>
<Linear Layout>
its displays the two list items by dividing the screen into two equal parts and scrolls within the list individually.
I wanted the List 1 to be displayed fully and then followed by List 2 and also it should screen should be scroll not with in the list but full screen so that List 2 could be seen below.
i tired many ways but still the results are not fine.
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Aug 22, 2010
The date is not displayed in the notification bar of my Samsung Moment, only the time, connection, and notifications. Does anyone know how to change this so that the notification bar displays the month, day, and day of the week?
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May 5, 2010
i want to display images on android screen.and the images should be scrolled in vertical way.how should i do the coding?
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Sep 20, 2010
Helloworld tutorial sample builds and runs just fine, except it doesn't show the text (i.e. loads apps). The only thing I see is that Emulator (Target 2.2 API level 8) comes up with just the "Android" in it. and then the emulator shows up a locked up screen in a while. Here is output from the console [2010-09-20 10:36:55 - HelloAndroid] Android Launch! [2010-09-20 10:36:55 - HelloAndroid] adb is running normally. [2010-09-20 10:36:55 - HelloAndroid] Performing com.example.HelloAndroid.HelloAndroid activity launch [2010-09-20 10:36:55 - HelloAndroid] Automatic Target Mode: Preferred AVD 'my_avd' is not available. Launching new emulator. [2010-09-20 10:37:56 - HelloAndroid] WARNING: Application does not specify an API level requirement! [2010-09-20 10:37:56 - HelloAndroid] Device API version is 8 (Android 2.2) [2010-09-20 10:37:56 - HelloAndroid] HOME is up on device 'emulator-5554' [2010-09-20 10:38:23 - HelloAndroid] Uploading HelloAndroid.apk onto device 'emulator-5554' [2010-09-20 10:38:27 - HelloAndroid] Installing HelloAndroid. apk.After I exit the emulator, I get the following errors. [2010-09-20 09:02:24 - DeviceMonitor] Sending jdwp tracking request failed! [2010-09-20 09:38:46 - ddms]null java.lang.NullPointerException at
com.android.ddmlib.JdwpPacket.writeAndConsume(Jdwp Packet.java:213) at com.android.ddmlib.Client.sendAndConsume(Client.ja va:573) at com.android.ddmlib.HandleHello.sendHELO(HandleHell o.java:142) at com.android.ddmlib.HandleHello.sendHelloCommands(H andleHello.java: 65) at com.android.ddmlib.Client.getJdwpPacket(Client.jav a:670) at com.android.ddmlib.MonitorThread.processClientActi vity(MonitorThread.java:317) at com.android.ddmlib.MonitorThread.run(MonitorThread .java:263)
[2010-09-20 09:38:47 - ddms]null java.lang.NullPointerException at com.android.ddmlib.JdwpPacket.writeAndConsume(Jdwp Packet.java:213) at com.android.ddmlib.Client.sendAndConsume(Client.ja va:573) at com.android.ddmlib.HandleHello.sendHELO(HandleHell o.java:142) at com.android.ddmlib.HandleHello.sendHelloCommands(H andleHello.java: 65) at com.android.ddmlib.Client.getJdwpPacket(Client.jav a:670) at com.android.ddmlib.MonitorThread.processClientActi vity(MonitorThread.java:317) at com.android.ddmlib.MonitorThread.run(MonitorThread .java:263)
[2010-09-20 09:50:11 - DeviceMonitor]Sending jdwp tracking request failed! [2010-09-20 09:59:29 - DeviceMonitor]Sending jdwp tracking request failed! [2010-09-20 09:59:31 - Logcat]device not found com.android.ddmlib.AdbCommandRejectedException: device not found at com.android.ddmlib.AdbHelper.setDevice(AdbHelper.j ava:736) at com.android.ddmlib.AdbHelper.executeRemoteCommand( AdbHelper.java: 373) at com.android.ddmlib.Device.executeShellCommand(Devi ce.java:285) at com.android.ddmuilib.logcat.LogPanel$3.run(LogPane l.java:516)
[2010-09-20 10:40:46 - DeviceMonitor]Sending jdwp tracking request failed!
Also, is there a way to capture the TEXT from CMD window that runs while the Emulator is coming up
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