Android :: Put Together Tiles In Sdk And Use As Background
Apr 4, 2010
In a feeble attempt to learn some Android development am I stuck at graphics. My aim here is pretty simple:Take n small images and build a random image, larger than the screen with possibility to scroll around.Have an animated object move around on it.I have looked at the SDK examples, Lunar Lander especially but there are a few things I utterly fail to wrap my head around. I've got a birds view plan (which in my head seems reasonably sane):How do I merge the tiles into one large image?t each onDraw redraw the background of the previous spot of the moving object, and the moving object at its new location
The problem is the hands on things. I load the small images with "Bitmap img1 = BitmapFactory.decodeResource (res, R.drawable.img1)", but then what? Should I make a canvas and draw the images on it with "canvas.drawBitmap (img1, x, y, null);"? If so how to get a Drawable/Bitmap from that?I'm totally lost here, and would really appreciate some hands on help (I would of course be grateful for general hints as well, but I'm primarily trying to understand the Graphics objects).
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Mar 15, 2010
I'll start by saying that I'm REALLY new to OpenGL ES (I started yesterday =), but I do have some Java and other languages experience. I've looked a lot of tutorials, of course Nehe's ones and my work is mainly based on that. As a test, I started creating a "tile generator" in order to create a small Zelda-like game (just moving a dude in a textured square would be awesome So far, I have achieved a working tile generator, I define a char map[][] array to store which tile is on :Code...
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Apr 13, 2009
I tried to display map in emulator. But its showing just tiles only. I am attaching the screenshot and the log message is like this.
04-13 22:30:06.934: INFO/ActivityManager(48): Start proc org.me.map for activity org.me.map/.MapAct: pid=615 uid=10022 gids={3003} 04-13 22:30:06.944: DEBUG/dalvikvm(607): VM cleaning up 04-13 22:30:06.954: DEBUG/dalvikvm(607): LinearAlloc 0x0 used 541500 of 4194304 (12%) 04-13 22:30:06.976: ERROR/dalvikvm(607): pthread_setspecific failed, err=22 04-13 22:30:07.425: INFO/System.out(615): #### #### Setting locale to en_US 04-13 22:30:07.466: WARN/Maps_Persistence(615): Couldn't find file: /data/data/org.me.map/files/DATA_Preferences 04-13 22:30:07.545: INFO/jdwp(615): received file descriptor 27 from ADB 04-13 22:30:07.645: WARN/Maps_Persistence(615): Couldn't find file: /data/data/org.me.map/files/DATA_Tiles 04-13 22:30:07.675: WARN/Maps(615): Couldn't restore map info, data == null 04-13 22:30:07.995: INFO/MapActivity(615): Handling network change notification:CONNECTED 04-13 22:30:08.015: ERROR/MapActivity(615): Couldn't get connection factory client 04-13 22:30:08.194: INFO/ActivityManager(48): Displayed activity org.me.map/.MapAct: 1400 ms
Please tell whats wrong with this, My source code is very simple, I ididnt try anything special,
public class MapAct extends MapActivity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } @Override protected boolean isRouteDisplayed() { // TODO Auto-generated method stub return false; } }
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Jan 30, 2010
I am having some issues getting tiles to load into my MapView in android development. I have searched and looked at similar problems on here but with no luck so far.
I have looked at the instructions here and have got hold of my debug API key. I have entered this into my MapView.
I have checked that my emulator and my debug device have got an internet connection.
I have move my Internet permission tag in my manifest file to be before the application tag.
I don't know what else to check.
I am also unsure of the best way to develop this. It seems that I can't debug with a properly signed app as the debug keystore needs the same password - android. This would imply that each time I go to do a release build I have to change the key - which seems very fragile!
Is there any way of developing and releasing builds with my own generated maps API key?
Some code for you to look at:
Main.xml:
CODE:.......................
AndroidManifest.xml:
CODE:.........................
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Jun 29, 2009
For some reason I cannot get my first maps application to work. I have gone though the full process of getting the MD5 fingerprint for the debug.keystore, registered for the key on the website, put it into the xml file. Even had changed my computer's locale to US English. I also signed the application with my private key and pushed it via ADB to the emulator. All attempts so far resulted only in the grey Google Maps background with the tiles not loading. JAVA_HOME environment variable points to my JDK file. Not sure what else I can do. Even upgraded from SDK 1.1 to 1.5. No improvement. I am really stuck here. I am running WIN XP, Eclipse ganymede, SDK 1.5 r2, with the latest ADT. Here is my class file code: package com.mellagio.maps; import com.google.android.maps.MapActivity; import com.google.android.maps.MapController; import com.google.android.maps.MapView; import android.app.Activity; import android.os.
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Jul 6, 2010
I am using a gutted version of the Snake Android sample. Pretty much I am using the TileView class verbatim and am only trying to display a few tiles on the screen. Instead of the SnakeView class I am using a GameView class in which I only included the code I thought necessary to display a tile on the screen.
Here is the class
CODE:...............
Now what is happening is that when the updateWalls() method is called, the tiles are placed within the View and comes up like this:
Now when I uncomment out the updateCellularArray() method and comment out the updateWalls() the program force closes and throws a NullPointerException. After some debugging I figured out that when the updateCellular array method is called, the mTileGrid array in the TileView class is not initialized, but it is when updateWalls() is called. I am completely baffled as to why this is happening. It doesn't matter if i replace the for loop with a simple setTile(GREEN_STAR, 3, 3); it still force closes.
Here is the TileView class I am using (again this is the same one in the Snake sample that comes with the Android SDK):
CODE:.......
simplified GameView class
Alright after modifying the updateCellularArray() method to the following:
CODE:........
It finally placed the tile where I wanted it to...
I'm starting to wonder if it has something to do with the RefreshHandler. Possibly when the RedrawHandler's sleep method is called in the update method of the GameView class. I'm not quite sure how it works so I am going to try playing around with it and see what I can come up with.
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May 18, 2010
Is it possible to determine the coordinates of the tiles that are visible in a MapView, relative to the first tile in the upper left corner of the entire map (including the invisible part)? I can't seem to find a way to get the tile coordinates.
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Nov 23, 2010
The Maps API always had its issues... since updating my Nexus One to 2.2.1 FRG83D earlier today, I see a problem more serious than anything prior. This applies to both Google Maps and (any) app that uses the Maps API (that I have tested). It's pretty obvious and simple, and cannot be remedied by rebooting the device: When panning the map view (no zooming that would trigger a complete re-load), map tiles that were already loaded, are cleared and reloaded. This can occur multiple times until the map view settles down. Looks pretty wild.
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Apr 14, 2010
I followed this guide here perfectly and have gone through it again but when I run the program on my google avd the page loads but only Grey tiles appear and it doesn't show a map which it should.
Does anyone have any ideas?
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Jul 10, 2010
There are a number of posts (both here & elsewhere) about why a MapView might not be displaying tile info (personally, I've liked http://stackoverflow.com/questions/1809507/android-hello-mapview-tutorial-map-tiles-do-not-load, but there are other good ones, too).
My question is slightly different: I'm not getting tile info to show up (on my handset or in the emulator), and I'm looking for advice on what to try in order to debug this problem. As far as I can tell I've correctly located my debug.keystore, and used the Java JDK keytool to get the signature from it, which I then plugged into the Google web page, and then plugged THAT key back into my XML file. The app runs ok, it just doesn't display any tiles.
I was hoping that if I did something wrong here I'd see an error message in, say, logcat (or an exception that Eclipse might catch) that would confirm that this is the source of the error.
So here's my question - what would y'all recommend someone try in order to figure out what the actual problem is?
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Nov 1, 2013
I just bought my nexus 5 and its pretty awesome but i was wondering if i could change a couple of questions...
Do you know the menu which appears when you press the lock button(i think its called power menu), is there a way of changing what icons appear there?
Can the tiles also in quick settings panel be changed?
Finally, if you press the middle button you see the google logo to laung google search, can that be changed to show other apps?
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Jul 20, 2012
I'm trying to create an app to plot our mountain bike trails on a Google map. I've got the Google map part working. However, once I try to plot a couple of geopoints and connect them it does displays the geopoints and connects them, but the Google map stops displaying. Only grey tiles show. Here is my code before I plot the points which works. import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.Point;
import android.os.Bundle;
[Code]....
Then I change my code to this to plot and connect a couple of geopoint and it turns map tiles grey.
import java.util.List;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
[Code]....
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Nov 16, 2012
I just got this samsung galaxy s relay 4g. I've gone and disabled the really nasty stuff. But i'm left with one real remaining problem.
most programs that have a single icon widget, end up taking up 2 tiles vertically. some 2x1's end up taking up 2x2. Here's some examples:
The task killer icon, and juice plotter should be taking up one tile, and they're taking up two.
The battery status icon is taking up four tiles, and should only take up two.
So how do I address this?
I suppose the next question, is it sane to try to get the vanilla launcher on here? Or should I just wait for a full cyanogen release for it?
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Nov 18, 2010
How to add a background theme and/or background wallpaper to my app? Right now my app background is plane.
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Jun 24, 2010
How can i make the background 50% transparent? Let's say the background of an AbsoluteLayout so it's dark but you can still see through it?
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Aug 8, 2010
why does the background becomes low quality in the emulator?
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Nov 11, 2009
I define a setBackgroundDrawable with a png resource that's 2px wide and 50px high. Android fills the background with this resource. The question I have: Does Android replicate the resource to fill the width of the screen or does it stretch it? The png is not 9-patch.
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Jul 27, 2010
Is it possible to set a background image on a PreferenceScreen? I have tried the tag android: background= "@ drawable/some_background" which can be set in for example a LinearLayout XML, but it doesn't work in the PreferenceScreen.
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Jul 22, 2010
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can anyone please suggest how to capture the keys while application is in background. and also without DDMS how can we capture the screen .Is there any API's
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Apr 23, 2010
I am working in a Gps app. the Gps is working fine, but i don't know when i am doing other operations in device the Gps is keep tracking or not.
so, how to run the specified Gps class in background,so that what ever i do with my device or nothing the Gps should always keep running(keep tracking).
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Nov 21, 2009
I have some requirement as given below:
I have to write an email app that should send a mail to the particular mail id.
I have written a code like this...
It is working fine, I mean sending the mail to the receiver.
But it is launching another Email app (android default app I guess). But I don't want it to be launched, I want directly send the mail to recipient.
My mail goal is that, the user should not know that the mail is sending. The default Email app (android's) should not be visible to the user. The mail sent process should be done in background.
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Nov 19, 2010
Is there a way to 'preload' a user interfaces but to not display it until I am ready?
I have a service which has a receiver to listen for action_screen_on to occur. When that occurs, I would like to load an activity. However, as it is now, it takes about 1 second to load. I would like to preload the layout in advance so that when the screen is turned on the layout loads as soon as possible.
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Jan 6, 2010
I want to develop an application in which if SIM card is changed then the application should sent SMS to a predefined number from the new SIM. User should not know that SMS are being send from his/ her mobile. For this application needs to run in background. How can I achieve it?
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Jan 5, 2010
I am new to Android, and I need some advices for start up. I want to build an application, which will show up, when the user gets into some hot situation. How to get started? How do I make sure my app won't be shut down?
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Apr 2, 2010
I am in the process of creating an app that is similar to the build-in SMS app. What I have tried: - running a regular service which worked just fine until android kills the service - using the AlarmManager the make the 5 min. interval call to a service. But I was not able to make this work.
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Nov 27, 2009
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Nov 6, 2009
I was wondering if I was doing something wrong or if there is a way to get the NFL Mobile App to playu gameday radio in the background. It seems when I hit the red button it kills it. Anyone else getting this to work?
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Apr 11, 2010
I don't understand why I'm getting this error. I'm using AsyncTask to run some processes in the background. I have:
protected void onPreExecute()
{
connectionProgressDialog = new ProgressDialog(SetPreference.this);
connectionProgressDialog.setCancelable(true);
connectionProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
connectionProgressDialog.setMessage("Connecting to site...");
connectionProgressDialog.show();
downloadSpinnerProgressDialog = new ProgressDialog(SetPreference.this);
downloadSpinnerProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
downloadSpinnerProgressDialog.setMessage("Downloading wallpaper...");....
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May 13, 2009
I'm trying to do a program and I wanna know how do I put the program in background.But it's no put the program in background, the program will start in background and close when the user open again and press close. Somebody knows where I can find?I looked in the references and I didn't find.
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May 25, 2010
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