Android :: Get Pixel Color Values Of Canvas / How To Check That Object Reached Upto Boundary

Jun 16, 2009

How can I get Pixel color of a coordinate? There is no method like canvas.getColor(x,y).

Actually, I am new to game developement. I am developing a Game which will restrict object if it comes to that boundary like in pac-man. How can I check that object has reached upto the boundary?

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Android :: Way To Get Pixel Values From Droid Canvas

Jul 9, 2010

I'm currently writing an Android game using surfaceView. I've optimized the game as much as possible and it runs quite smoothly. However, I have collision detection incorporated which is a bit messy. I would like to do collision detection by reading pixels directly from the canvas. Is this possible to do? The closest to this that I have found was to attach a new bitmap to the canvas using setBitmap. Then when I drew to the canvas, the bitmap would be updated. Would this be the way to go?

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Android :: Color Class Can Be Used To Extract Rgb Values From A Pixel - 32 Bit Int

May 22, 2009

Before I submit this I just wanted to check it's not a java nuiance.

The Color class can be used to extract rgb values from a pixel (32 bit int).

I implemented a lookup table filter and used a byte to store each individual r g & b value to save a bit of space.

Long story short;

CODE:...........

137 is the magic number causing the error in my case, there may be more.

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Android :: How Do I Antialias Clip Boundary On Canvas?

Apr 27, 2010

I'm using Android's android.graphics.Canvas class to draw a ring. My onDraw method clips the canvas to make a hole for the inner circle, and then draws the full outer circle over the hole:
clip = new Path();
clip.addRect(outerCircle, Path.Direction.CW);
clip.addOval(innerCircle, Path.Direction.CCW);
canvas.save();
canvas.clipPath(clip);
canvas.drawOval(outerCircle, lightGrey);
canvas.restore();
The result is a ring with a pretty, anti-aliased outer edge and a jagged, ugly inner edge:What can I do to antialias the inner edge?I don't want to cheat by drawing a grey circle in the middle because the dialog is slightly transparent. (This transparency isn't as subtle on on other backgrounds.)

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Android :: Faster Way To Set A (PNG) Bitmap Color Instead Of Pixel By Pixel

Nov 22, 2010

I have some png files that I am applying a color to. The color changes depending on a user selection. I change the color via 3 RGB values set from another method. The png files are a random shape with full transparency outside the shape. I don't want to modify the transparency, only the RGB value. Currently, I'm setting the RGB values pixel by pixel (see code below).I've come to realize this is incredibly slow and possibly just not efficient enough do in an application. Is there a better way I could do this? Here is what I am currently doing. You can see that the pixel array is enormous for an image that takes up a decent part of the screen

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Android :: How To Obtain Pixel's Rgb Values In An Image

Jul 21, 2010

I am working on a little side project (program for Android platform)and I don't exactly have a problem, but I don't really know where to start. The project I am working on has to do with getting the info and manipulating a pixel's RGB values inside an image. I know this is a very basic program (not going to disclose all the information about the project), but I am a beginning android programmer.

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Android :: Extract Color Of A Pixel Of Screen

Jul 28, 2010

I want to get the color of one pixel of screen

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Android :: Randomly Change The Color Of Every Pixel On The Screen

Nov 9, 2010

I want each pixel on the screen to flash between red, blue, green, white, and black but independently of each other. Is this possible? I have been searching everywhere with out any luck. Any help on where to start would be greatly appreciated.

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Android :: Canvas And Its Transformation Matrix Have Different Translation Values

Aug 31, 2010

I might be completely off-base here, but I've spent the last two days trying to figure this out and, without success, you're my only hope.What I'm doing is simple:

* I have a canvas where I draw a circle with center on (10, 10), with radius = 5;

* Then, I obtain the canvas transformation matrix

* And then I create a new rectangle, I map it using the matrix and I use the canvas to draw it.

My problem: basically, the rectangle is being drawn in a different position along the Y-axis.I outputed the transformation matrix and, by default, it is translated by zero in the X-axis and by 25.0 in the Y-axis. Please note that I made NO transformations, either translate, scale or rotate. I am unable to understand why this is happening and how to avoid it.

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Android :: AvoidXferMode To Replace A Color On Canvas

Jan 15, 2010

I'm trying to replace a color for something that is drawn on a Canvas using AvoidXferMode.

From the android docs it looks like it's exactly what I need:

AvoidXfermode xfermode will draw the src everywhere except on top of the opColor or, depending on the Mode, draw only on top of the opColor.

What I'm trying is something like this:

CDE:.......

However, this just gives a red screen, not green as I would expect (replacing the red with green). I guess I'm missing the point some where...

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Android :: Java - How To Check If Object Is Null

Jan 9, 2010

I am creating an application which retrieves images from the web. In case the image cannot be retrieved another local image should be used.

While trying to execute the following lines:

CODE:................

The line if(drawable.equals(null)) throws an exception if drawable is null.

Does anyone know how should the value of drawable be checked in order not to throw an exception in case it is null and retrieve the local image (execute drawable = getRandomDrawable())?

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Android :: Defined Color Under Res / Values Not Usable In Code

Jul 15, 2010

I defined a white color in mycolors.xml under res/values as below:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="my_white">#ffffffff</color>
</resources>

In my code, I set the text color of a TextView as the white color I defined:

TextView myText = (TextView) findViewById(R.id.my_text);
myText.setTextColor(R.color.my_white);

But the text in the TextView turned out to be a black color. When I use @color/my_white in layout xml files, it works fine. I check the generate R.java, and see: public static final int my_white=0x7f070025;

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Android :: How To Fill Bitmap Object With Color In Droid?

Jul 17, 2010

I'm working on Android game and there are some problem appear I want to fill a color on bitmap object but can not I tried bitmap.setPixel but my Image is PNG format (like a circle or unsharp, surrounded with transparent color) and android can not getHeight() or getWidth(), ie.

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Android :: Bugs Of WebView - Could Not Handle Color Values When Use HTML Code

Feb 11, 2009

I don't know where to put the bug report of APIs.

I use WebView to display some pages in my dictionary software. I met some problems with WebView.

1) could not handle the color values When I use the HTML code: <font color="#00FF00"></font> the WebView could not handle this type of tags. But <font color="red"></font> can work well.

This bug exist both in SDK1.0 & SDK1.1

2) Chinese Char: I use UTF-8 as the charset, and if there exist some Chinese chars, then this HTML code could not be displayed in WebView: <html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head> <body> <p><font color="red">[-------- 美国 统词典[双解] --------]</font></p> </body> </html>

This bug exists in SDK1.1.

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HTC Desire :: Make LED Lights Stay On Until I Check It / Apps That Can Change Color Of It?

Nov 2, 2010

I thank HTC for trying to take Blackberry's notification LED and implementing on our Desire
However, I have yet to find it useful because the LED light (other than battery indication) stops functioning after few minutes for missed calls, text msgs

I was hoping once they update it to 2.2, they would fix this problem.
Is there ANY way to make the LED lights stay on until I check it?
Also, are there any apps that can change the color of the LED light?

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Android :: Why To Setup Boundary String In HttpURLConnection?

Nov 19, 2010

Why we have to setup a boundary string?What is the purpose for? any rules on it?

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HTC Desire : Memory - Takes A Micro Sd Upto 32 Gig

Jul 27, 2010

Can anyone tell me what the desire is like for memory. i know that it takes a micro sd upto 32 gig but what can be saved on that is it just music ext or will the downloaded apps save to this also? what is the phone memory like im sorry im due upgrade and my choice is between this and the samsung galaxy s.

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Android :: Can I Restrict Backbutton Functionality Upto 3 / 4 Levels?

Sep 3, 2010

I am fighting with android hardware backbutton now my question to you is can i restrict its functionality upto 3 or 4 levels? right now for example, i have 1,2,3,4,5,6,7,8,9,10 activities i go to 1 then 2 then 3 .... upto 10 and start pressing backbutton it takes me to 9 then 8 then 7 upto end i want to keep track of only last three levels is this possible or not?

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Android :: Reset Canvas - Draw A New Bitmap Into The Canvas

Jul 7, 2010

My loadMap() method generate a canvas.throwIfRecycled exception when i try to load a new map.
When i start the game, the initial map loads and work fine though,
its only when i try to load a new map that i get the exception ..

How can i "reset" canvas and the bitmap i use to draw into, so i can startover fresh with them ?
here's what i use to create and draw my maps:

CODE:.........

So basicaly once i created and used picDest and canvas, i cannot figure how to reset it all for when i want to load a new map..

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General :: How To Edit Default Values Of Memory Min-free Values Of Rom Reside

Apr 9, 2014

I want to ask where does the defaults values of memory min-free values of a Rom reside? I mean what file I would have to edit to edit those values?

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Android :: How Can I Get Current Activity Object In Instrumentation Object?

Sep 9, 2009

I want to do some automated testcase with Instrumentation . Suggest that my AUT has 2 Activity. After clicking the button in ther first Activity, the second one will be shown with new content base on what we enter in the first Activity.) Instrumentation provides us the function called startActivitySync() and return the Activity object for processing. My question is how we can get the pointer of the second Activity after the it is shown by clicking the button on the first activity.?

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Android :: Cast Picture Object To Bitmap Object

Jun 8, 2009

I would like to convert a Picture object to Bitmap object in memory, without writing data to disk.

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Android : Get Activity Object From Intent Object

Sep 21, 2009

I have an Activity that running on system. I can get the Intent that is used to start the activity. But i don't know how to get the Activity object from the Intent object or something else. Can anyone tell me how to do this??? Note that, I don't use Instrumentation object.

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Motorola Droid :: Reached Data Limit?

Dec 1, 2009

Yesterday (which was the last day of the month), I got a message in the browser saying that I had reached my data limit. It would not load anything. It would still access data over Facebook, Twidroid and Sportstrack, but not the browser. Today, all is fine. So, was that message just in error, or does it sound as if I actually hit my limit? I heard around here that they were not really going to be monitoring the usage unless you were on the business plan. I suppose I could find out if I could see my total usage numbers, if I was around the 5 GB mark.

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Android :: How To Determine When Scroll View Has Reached Bottom

Apr 9, 2009

I have a TextView inside a ScrollView and I have loaded it with a bunch of text. When the ScrollView gets to the bottom/top I would like to load the TextView with new data BUT there doesn't appear to be any way to find out when you have reached either location. Could some one help me out with this? How can this be done?

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HTC Desire :: Reached Limit On Internal Memory / How To Free Up Space?

Jun 9, 2010

I have pretty much reached my limit on internal space, but while looks at my apps list on which to delete because I don't use I found only two. I was wondering what will happen if I clear data on the contacts storage i.e. will I loose my contacts, and with the facebook. Is there a way of clearing the data not uninstalling apps if so what data does it clear?

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General :: Can't Send Videos - Message Limit Size Has Been Reached

Jan 1, 2013

Whenever I try to attach a video I take with my Rezound they won't attach. I always get a message that says "cannot attach video. Message limit size has been reached ". The videos are the lowest resolution and only about 5 seconds.

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Motorola Droid :: Facebook App Error - Application Request Limit Reached

Jan 5, 2010

Facebook app has been acting up on my Droid since evening. I can get to mobile site but the app says "application request limit reached" and will not get data from FB.

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General :: Unable To Download Apps From Market - Storage Limit Reached

May 29, 2012

i'm no longer able to download apps from the market.. my phone gives a warning like, "storage limit reached".. or something like that. how do i fix this?

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HTC Hero :: Picture Messaging - Tried To Send - Error - Message Size Limit Reached

Oct 15, 2009

I recently bought a HTC Hero with sprint. i took a picture and tried to send it via text message..i receive error of " Message size limit reached...sorry, you cannot attach this your message" Also, i cannot view a picture message sent to me. i tried also saving it to my 4gb card but cannot find where to view the files in my sd card...

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Android :: SDK Installation Error - No Buffer Space Available - Maximum Connections Reached? - Recv Failed

Feb 3, 2010

I am trying to get my environment setup to develop an android app so I downloaded the SDK(http://developer.android.com/sdk/installing.html). After unpacking the files and running the SDK Setup.exe, the Android SDK and AVD manager opens up.

During the installation process, I got an error stating the following: Failed to fetch URL https://dl-ssl.google.com/android/repository/repository.xml, reason: HTTPS SSL error. You might want to force download through HTTP in the settings.

So then I proceed to the SETTINGS tab and activated the check box which states: Force https://... sources to be fetched using http://

Then click save and apply. A box flashes on screen, which appears to be the previous box which showed the error, except this time, the progress bar races from 0 to 100% in about a second and then disappears. So clicking the FORCE option seemed to have worked for that issue.

Now, I click on the AVAILABLE PACKAGES tab which is where the Android manager actually downloads all the available resources including every "SDK Platform Android Vx.x" and every "Google API by Google Inc., API x, revision x"

There are green check marks in every check box indicating that I need to download every update.
SO I click INSTALL SELECTED.

The confirmation page comes up. Again, I click INSTALL ACCEPTED.

The INSTALLATION ARCHIVES box pops up and this is where I get stuck. I receive the following errors and I'm not sure what to do from here..


CODE:..................

I did some googling on "No buffer space available (maximum connections reached?)" and apparently it is a socket issue that typically occurs when a database query is called and there are a large number of TCP connections.

But beyond that I'm completely stuck. Can't find anything on my issue relating to Android SDK installation and I don't really know where to turn to continue with the SDK installation.

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Android :: Unable To Select - Check - Check Box In CheckboxView

May 21, 2009

I've got the following row xml file which consists of CheckboxView and TextView;

CODE:............

When the app run, i'm unable to "tick" any of the check boxes...

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HTC Incredible :: Check For System Updates Doesn't Check

Sep 2, 2010

Check for system updates doesn't check.

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HTC Hero :: Enabling GPS Satellites - To Check Or Not To Check

Nov 6, 2009

Menu - Settings - Location - Enable GPS satellites

It states that enabling this will "require more battery plus view of sky"

When checked, it states "deselect to conserve battery"

So, the question is, should this be enabled?

I imagine for some applications, knowing your precise location should be useful, especially if the turn-by-turn maps are installed and used.

I'm thinking to deselect this, and selecting it at times when I need it.

So, to check or not to check?

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Android :: ListView With Alternate Color And On Focus Color

Jun 17, 2010

I need to set alternate color in list view rows but when i do that it removes/ disables the on focus default yellow background

I tried with backgroundColor
rowView.setBackgroundColor(SOME COLOR);

also with backgrounddrwable.

CODE:.........

But it wont work. is there any way we can set background color and on focus color simultaneously which will work.

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Android :: Selection Color And Text Color In Whole Project

Apr 22, 2010

Is there any process to change the default text color white to "Black" and default selection color of android "orange" to "Blue" for whole project. i am using Eclipse for Android development.

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Android :: Use Own Color Instead Of Default Orange Color For Selection

May 23, 2009

1. I want to use my own color for selecting ui views.

By default, android shows the selected view with background as orange. I want to show the view background color as red.

2. In the same way, I want the same behaviour should be applied to whole application.

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Android :: Setting Color In Two Different Ways Color/color1

Mar 19, 2010

I have seen this example:

@*android:color/secondary_text_light

What's that * asterisk doing there? What is the difference when using or not?

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Android :: Customize Color Of CheckMark Color In A Dialog

Aug 16, 2010

How to customize the color of the CheckMark color in android in a dialog. Currently , By default, the color of the checkmark is green by default. I would like to customize it to a different color of choice

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HTC EVO 4G :: Got A Dead Pixel What Should I Do?

Jun 30, 2010

I got my evo last Friday and I have noticed a dead pixel. It's on the e key when the keyboard is up and can only be seen on a white screen. My question is should I exchange it or is one dead pixel nothing to worry about? It looks like a little purple or red speck.

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Sprint HTC Hero :: Picture Messaging - Error - Message Size Limit Reached - Sorry Cannot Attach This Your Message

Oct 15, 2009

I recently bought a HTC Hero with sprint. i took a picture and tried to send it via text message..i receive error of " Message size limit reached...sorry, you cannot attach this your message" Also, i cannot view a picture message sent to me. i tried also saving it to my 4gb card but cannot find where to view the files in my sd card...

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Motorola Droid :: 'Application Request Limit Reached' On Droid

Jan 5, 2010

so i went on facebook and that msg popped up tried refreshing it but the same msg pops up.everything else is working perfectly fine but its the facebook.any1 else having the same problem??

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Android : Convert Android.net.Uri Object To Java.net.URI Object

Feb 18, 2009

I am trying to get a FileInputStream object on an image that the user selects from the picture gallery.

This is the android URI returned by android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI content://media/external/images/media/3

When I try to construct a java URI object from this object, I get an IllegalArgumentException with the exception description Expected file scheme in URI: content://media/external/images/media/3 whereas the android URI shows the scheme as content

Never found a solution for the original question. But if you want the byte stream of an image in the pictures gallery, this piece of code will do that.

CODE:...................

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HTC EVO 4G :: Dead / Black Pixel

Jun 8, 2010

So when I bought the Evo, the first unit had a crack on the bottom of the LCD, then I got a replacement that same day and it had a dead pixel. Sprint said they couldn't exchange three in one day, so they said they will call me when my replacement unit comes in, but I want to know if there is anyway to fix this one dead pixel?
This is a dead pixel, not a stuck one. I can only see it on a white background and its a black dot. Any thoughts?

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Android :: Get Pixel Value From Display?

Jul 14, 2010

I'm not even concerned with the camera per se. I want at the closest thing to the display screen. Meaning: it could even be the desktop the user is looking at, completw w/ the background and the icons she moves back and forth.

Let's say, at time t=1 sec, the app goes to pixel (78, 300) on that display and obtains its value. What may be at (78, 300) could be a portion of the icon or some speck of tree leaf on the photo being used as desktop background.

I'm familiar with BitmapFactory.decodeFile() for getting at the pixel contents of a file. But what about the display?

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