Android :: Need Width / Using Paint Object

Jul 1, 2009

I have to get the height of the text for i have specified the text size. is this possible? i need to get the width using the Paint object and without.

Android :: Need width / using Paint object

Android :: Drawable Object Where I Can Store Points For Faster Paint?

Aug 21, 2010

I'm designing a custom view which is an X/Y Plot. It's a moving graph that scrolls to the left with time and new Y values are continuously coming in at 10 per second.

I've been able to make it work with an array of integers where the array index is the X value and the integer value is the Y value, but this seems horribly inefficient (Because every time it comes time to re-paint, I have to loop 800+ times to paint the graph). Then we do it all again 10 times a second. yuck.

Can anybody think of a paintable object that I can draw points to and perform some kind of scroll transformation and then just draw the new points each time, rather than the whole canvas?

Any other ideas out there?

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Android : How To Set A Dialog Themed Activity Width To Screen Width?

Jun 2, 2010

I am followin the method described here to create an EditText input activity. But the view doesn't fill the width of the screen. How can I tell to fit the screen width?

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Android :: How To Set Width Of Buttons To Cover Screen Width?

Mar 1, 2010

i have three button in linear layout with width fill_parentnow how can i set width of these buttons to cover whole screen area equally?

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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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Android :: Gallery Item Width Vs Gallery Width

Jan 10, 2010

I have a Gallery with a set of images that was downloaded at run time.I followed the example here: but instead of using i.setImageResource(this.myImageIds[position]);I used i.setImageBitmap(bitmaps.get(position));This doesn't fill the entire width of the screen, only as much as the width specified here:i.setLayoutParams(new Gallery.LayoutParams(150, 150)); When I increase this number, the item scales with it instead of showing more images per the example. I've even tried to scale the images before adding them to the set. Not sure what I'm missing, or where other examples of this might be. Any help would be great.

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Android :: Paint & OnTouch

Oct 25, 2009

I have a problem with one of my app. I try to make a paint application but nothing is draw on the screen (except the first circle which is draw on the launch).The log Cat seems to be correct and i get the right x/y coordinates.I think i do something wrong on the you see my problem?

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Android :: Paint On A VideoView

Sep 14, 2010

I am trying to code an app where you can paint (Finger paint) free hand on a running video in a VideoView.I have the two things running separately but not together.I can draw my paint on a balance screen and i can play my video on my videoView, which is implementer in an xml layout.Is there a way to overlay the xml videoview View with an other View which can be drawable?

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Android :: Making A Paint App

Jan 12, 2010

I'd like to include a simple draw feature on my app. A friend told me I can't use canvas because I need to control the frame buffer and not redraw the entire screen every for every frame.He suggested I find a openGL 2d engine.I've searched around and I've only found Rokon which doesn't have any documentation and the examples aren't quite what I need.Any suggestions?

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Android :: Wall Paint Preview App

Mar 29, 2010

Is there an app out there that lets you take a picture of your room with the camera,then preview different wall colors?

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Android :: Setting Unit For Paint.set TextSize

Jun 17, 2010

Is it possible to change the unit for Paint.setTextSize?As far as I know,it's pixel but I like to set the text size in DIP for multiple screen support.

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Android :: Implement A Paint-update Loop ?

Sep 8, 2010

I want to create a paint and update loop in android for game animation on a canvas but I am having trouble as I can't seem to get the threading to work appropriately. It seems to crash almost immediately.

Here is what I have tried:


Also when I drop the wait down lower it crashes faster. Is there a more appropriate way to approach this?

Changed to this:


This results in the same error...

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Android :: Create Simple Paint Program With Zoom?

Aug 21, 2010

I'm new to Android and Java programming and I've manage to create a simple paint program, but how do I add a zoom feature? Right now I'm just extending the View class and using the "on Draw()" method. Do I have to use a Drawable to be able to add zooming functionality? I'm not really understanding the differences between the two. If I am way off base then please point me to a good tutorial on paint/zooming.

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Android :: Default Paint Size Too Small On New Device

Jun 2, 2010

My app uses a custom View that does a lot of text drawing.To ensure my text is always readable I've been using the result of calling getTextSize() on a newly-created Paint() instance as the minimum size. Docs say calling 'new Paint()' sets attributes like text size to default values.One of my European users just got a Motorola Milestone phone and reports that some text is unreadably small.I believe I've duplicated this using the WVGA854 skin in a 2.1 emulator.Run in that emulator my app's smallest TextViews look fine, but the text I'm drawing myself using Paint instances where I haven't changed the text size from the default is too small. I confirmed this by commenting out all setTextSize() calls in my View subclass: the text becomes too small to read comfortably.

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Android :: Paint Program / Photoshop (full) Alternative?

Nov 24, 2010

I'm looking for an application that will allow one to open an image (or pdf, preferably) of a worksheet and allow one to "do" that worksheet; in other words draw/write on the image/pdf.

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Android :: How To Paint Transparency - Swiss Cheese Style

Apr 4, 2010

To explain i have a bitmap which is constructed as follows

Paint a rectangle color yellow I want now to paint a smaller circle over the top of the rectangle, but i want to use transparency. so that the circle results as a hole in the rectangle. {like swiss cheese with holes }

So if i painted the bitmap over a background the background would still be visible in the Circle/hole.

setting the drawcolor drawColor(Color.TRANSPARENT) just paints a transparent object. i.e. it doesn't erase the circle area of the rectangle.

How to do...?

One option is to set the circle color to say black and then look for an option to replace black with transparent within the bitmap.... but i can't find a solution for this either.

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Android :: Design A Videogame To Paint Scenario Where Move Character

Sep 28, 2010

I'm trying to develop an RPG for Android, so I need to paint a scenario where I'll move my character.

My idea is to do it 2D. I've developed 3D games and Java games for desktop, but in Android i don't get how to star the scenario.

Could it be developed with a matrix of information, so I could know where my character steps?

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General :: Android - SurfaceView Flickers And Sometimes Does Not Apply Proper Paint

Apr 3, 2012

The issue I am experiencing is that the SurfaceView I am using flickers. Once in a while, the objects I draw flicker and they change their size or colour.

It looks like that sometimes the application skips my calls to 'Paint.setColor()' and the one to 'Paint.setStrokeWidth()'.

I have made methods which change the used paint and then, in order to try to fix this issue, to set it back to the default paint values. Still the issue persists. I have also read that the problem might be due to the double buffering. Is it the case? I am using this code for the DrawingThread:

I also tried to use a dirty Rectangle to try to see if the issue can be fixed, but still nothing. [I might not have understood what it actually does.

class DrawingThread extends Thread {
private SurfaceHolder _surfaceHolder;
private CustomView _cv;
private boolean _run = false;

[Code] .....

I have read somewhere I should draw on a single bitmap and then draw the bitmap on the canvas. I have tried several times but I cannot manage to do so.

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Android : Convert Object To 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.


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Android :: How To Ensure Black Outlines Of Drawing Are Not Colored By Paint Brush

Feb 25, 2009

I'm developing a coloring book app, how do I ensure that the black outlines of my drawing are not colored by the paint brush? I thought of decreasing the alpha value of the paint brush to show the black outlines when painting over them but upon painting the same area again, the black outlines will be painted over.

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Android :: Adjusting Font Size To Fit / Paint Measure Text Returns Too Small Value

Oct 31, 2010

I'm using the FontFitTextView that was posted in this other thread, but it isn't working exactly right for me. The measureText() call is returning a number that is obviously too small to display the string. When it runs through to find a font size that will allow the text to fit, the font size it settles on is still too big. I feel like there is some other kind of padding or margin or some other invisible that is contributing the math that makes up the width which is causing the discrepancy.For example I want to set the text of my FontFitTextView to be "10,000.25".The width of my FontFitTextView is 96 pixels, with 8px padding on both sides, so my available width is 80 pixels. The call to measureText() says that the text "10,000.25" is 64 pixels wide. This means that the current font size should be small enough to display the entire string. However, when the string is actually drawn on the TextView the last 2 characters are chopped off and all I see is "10,000." instead of "10,000.25"

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HTC Droid Eris :: Ear Piece Paint

Feb 3, 2010

Anyone else notice the black paint,on the earpiece, starting to wear off?

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Motorola Droid :: Gold Paint

Jun 10, 2010

Somehow the gold paint has flecked off of my camera button.Anyone deal with this?Any good solutions?I was thinking gold nail polish.

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HTC Incredible :: Earpiece Paint Rubbing Off

Jul 8, 2010

The red paint on the earpiece of my DINC is rubbing off, ever so slightly.Anyone else experience this?

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Samsung Captivate :: Paint 'dent' On Phone Already

Jul 22, 2010

I've had the phone only since Tuesday, and I just noticed a dent in the paint, if that's the correct description, near the bottom right corner (an inch below the Search button, slightly to the right). It looks as if someone pushed their finger nail into the paint really hard. It's the same height as the letter G in "SAMSUNG" printed under the screen.

The phone was dropped by a child on the car mat once before, but I don't think that's what caused it.Any ideas on how to fix it, or if I can get it replaced? (I got it from for free with contract).

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Motorola Droid :: Paint Suggestions For Camera Button

Jan 28, 2010

There seams to be a widespread problem of the gold coated camera button flaking and or wearing over time. The top of my camera button is completely white and looks awful.Other then this,I have no complaints about the phone.Don't feel like dealing with VZ or Moto and getting a new phone for something so small.Has anyone painted the camera button?If so what kind did you use and how does it look?

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Sprint HTC Hero :: Paint Peeling Off Red Hang Up Button

Jan 18, 2010

Am I the only one with this problem?Now I have a big hole in the silver paint that shows red.I use the red button a lot to lock the screen,but did not expect the paint to peel off.

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HTC EVO 4G :: Squeaky - Oil / Lubricant Safe Enough To Use Without Eating Away Paint And Finish?

Jun 10, 2010

It seems as though my kickstand almost needs some lubricant. It sticks somewhat over halfway open, and needs a push to fully open, as well as close. My question: what oil/lubricant would be safe enough to use without eating away the paint and finish on the phone? (I.E. WE-40 is definitely out). It's just annoying because I use it alot to prop up the phone and keep it off its back, and camera lens at that. It's annoying hearing it squeaking every time it opens and closes.

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