Android :: Map Not Displaying , Just Tiles Only / Need To Display
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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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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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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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 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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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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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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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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CDE:........
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CODE:...................
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