Android : API For Drawing Chart

Oct 8, 2010

Is there any api for drawing financial chart in android.

Android : API for drawing chart


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Android : Drawing Stock Chart

Oct 8, 2010

How to draw chart like the following image in android.what is the tool can we use?

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Android :: Free Chart Drawing Package For Android

Aug 25, 2009

Could someone recommend a free or cheap Chart drawing package for Android? I found this one, which is quite elegant but pricey ($300/license):
http://www.artfulbits.com/Android/aiCharts.aspx

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Android : Chart Using Scrollview

Sep 8, 2010

I want to draw a chart and I'm using a scrollview to do so. my scrollview holds the chart view. What I've observed is that the scrollview's onDraw calls the onDraw of my chart view. Now I draw the entire chart on the canvas when the onDraw of chart view is called. Also scrollview's onDraw is called everytime I scroll the view. So I end up drawing the entire chart multiple times. Is there any better way to achieve what this

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Android : Wanted Chart API For App

May 9, 2009

I am looking for the .jar file or an api where i can use and draw charts for my android application.i searched net about it couldn't find much results..Kindly help in it to find any chart api that can be for the android applications.

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Android :: Build Pie Chart In Application?

Feb 18, 2010

How can I build a pie chart in my application?

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Android :: Good Chart Engine?

Aug 17, 2009

Can anyone suggest good chart engine for Android?!

I did a small research and found several engines: - Java4Less (http://java4less.com/charts/chart.php?info=android) - Chart4J (http://code.google.com/p/charts4j/) - BlueChart (http://code.google.com/p/bluechart/) is it a port of jFreeChart?! - aChartEngine (http://code.google.com/p/achartengine/) - aiCharts (http://www.artfulbits.com/Android/aiCharts.aspx)

Somebody try them?! Any pros and cons?! Which one is the best for Android?!

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Android : Examples Using Google Chart API?

Feb 16, 2010

Can I use the google chart API in an android project? If so can anyone link some examples?

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Android :: APP That Showed SD Card Usage On A Pie Chart

Sep 4, 2010

I used to have an APP that showed my SD card usage on a pie chart and give a list of what was using how much. Anyone know what this APP is called?

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Android :: Design Flow Chart Scheme For Apps?

Oct 7, 2010

I'm seeing that it would be good to have some sort of charting scheme (or possibly just a table-based design strategy) when designing Android apps.Have any such schemes been proposed?

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Motorola Droid :: Need Iphone / Android Comparison Chart

Oct 30, 2009

Code...

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How To Make Chart / History On Battery Consumption Of Running Application In Android

Jan 24, 2012

how to make battery consumption on running applicaion in android my thesis problem. it's about a battery notification or battery consumption of running application. how can i make it just like a chart/history that will tell how much battery an application consumed.

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Motorola Droid : ROM Comparison / T-Chart Request

Feb 23, 2010

I hope what I'm asking hasn't been asked, but if so, I'd gladly take a link in the right direction.Is there a comparison chart/ T-chart that compares the various roms out there?Something that compares build (2.01 vs 2.1), features (wireless tether, live wallpapers, etc), speed results, strength/weakness narrative etc. similar to what you'd find on a consumer guide, perhaps in a scope and sequence type of alignment that alludes to release dates?I've heard "go with the rom that best suits your need", but a diagram like the one suggested might help the community.Perhaps a knowledgeable veteran would be interested in such a project?If I'm way off, just tell me to go pound sand.

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Android :: Droid - Stock Weather - Line Chart That Had % Chance Of Precip And Temp Forecast Vs Time

May 2, 2010

Just switched from a Motorola Droid to an Incredible after having the Droid for 8 days. Love the Inc but miss the stock weather that the Droid had, specifically the line chart that had % chance of Precip and Temp forecast vs Time. Any way I can get this on my Inc? Thanks.

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Android :: How To Make "pie Chart" With Touchable Wedges?

Sep 1, 2010

I have need to make a sort of "Pie Chart"-style circular display. the wedges of the chart have to be touchable, and the whole circle has to be able to spin 360deg. I'm still an android noob, but I'm guessing that I can't do this with a Layout.. right? preferably, the wedges would be image assets that I create in Photoshop, and not programmaticaly created does anyone have any Idea where to start with this?

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Android : Best Drawing App?

Jul 21, 2010

What is your best drawing app?

I've tried Draw!, Draw(er), and MagicMarker, but I dunno, they each have their pros and cons and can't find one that suits me well. I'm not looking for Photoshop on my phone, but something better than a colored line. So what is your best drawing app?

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Android :: Drawing And Animating?

Nov 5, 2010

This is more of a question about animating than a specific problem coding. i need to fill in the broad strokes left by the research i've been doing.

What i'm trying to do:

The activity should load with only the a togglebutton visible. when the button is touched, a png will be animated to a certain position relative to the togglebutton. also, another button will slide in from off screen and slide off if/when the togglebutton is pressed again.

What i can't figure out:

I can draw an image, but only via xml. creating an imageview and setting the background programmatically does nothing.

When i draw from xml, i can't move the image when the togglebutton is pressed like i want to. when i call getPositionOnScreen() i get a null pointer, even though the complier can see i'm referring to the imageview described in both xml and in code.

I'm calling getPositionOnScreen because via xml, i have the image positioned behind the togglebutton so that it's not visible until the button has been pressed and the image starts moving. the idea is that with different screen sizes i won't know exactly where the view is until runtime. getPostionOnScreen allows me to get the coordinates of the imageview so i know where it has been positioned. when i have a start position, can tell it to "move up" on the screen from behind the togglebutton by simply adding to x or y until it's where i want.

This is the code to draw the image (inserted in the onCreate method).

CODE:.......

This is the code i'm using to animate. when the button is clicked, it calls this method on the view from the listener.

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

I'm well aware that this is horribly wrong and won't work. what i need to understand is why.

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Android : App That 'animates' Drawing?

Apr 18, 2010

I'm trying to learn about Android programming by rewriting a C app I've moved from DOS to X-windows to Windows as a learning tool. It's just a silly little app that draws symmetrical 'game of life' patterns on the screen in a kaleidoscopic fashion. It's structured so that the patterns do their own animations. I.e. there's a 'Life' class that produces the next generation and redraws itself from the center outward, inserting delays to produce a kaleidoscopic effect.

I've got it so that the patterns draw - I took the LunarLander sample as a starting point, and an drawing on a SurfaceView. But my problem is with timing the 'animations'. I'm not doing traditional animation, where I build a whole frame and then draw it, but the surface seems to want to draw itself completely on each iteration of my loop, so my inserted sleep's don't insert delay in the right places.

So my questions:

1. Is there a more direct way to write to the screen than via a SurfaceView? If I did that, would the various steps of my 'animation' occur as I drew them, producing the desired effect. 2. If such a drawing method exists, would I be wasting my time learning how to use it? 3. What's the 'standard' way to do this kind of animation?

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Android :: Drawing Circle In MapView

Oct 29, 2010

Trying to draw a circle at a longitude/latitude position. The circle below doesn't show up, does anybody know why?

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Android :: OpenGL Circle Drawing

Mar 16, 2010

I have to recommend just getting a book on the subject.I learned most everything off of examples and documents on the web.After several months, I finally picked up the blue book and everything I had scoured to find is clearly demonstrated in it.Look for the red book and the blue "superbible."They cover everything you need.There are also books specific to ES.Make sure to get a good 1.1 one and not a 2.0-only one.

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Android :: Return Value Of Get Drawing Cache

Jun 17, 2009

From the JavaDoc, it said it returns 'a bitmap representing this view or null if cache is disabled'. My question is what if the View is longer than the phone screen (you need to scroll vertically), what does the bitmap return? * only the visible portion of the view * everything the view has (both visible + invisible part)

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Android :: Drawing An Image Using OpenGL

Aug 10, 2010

Using OpenGL ES, how do I draw an image from the resources file onto the screen? The image is in png format, if that matters.

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Android :: Drawing A Nine Patch Image

Nov 29, 2009

I'm trying to create on of these images, but Eclipse won't accept it once I've used the draw9patch tool. I've found other people having the same problem, and saw this comment: I discovered later that the problem I was having was caused by the image not being exactly true to the nine-patch spec as defined in the documentation. Once I fixed the image to have a clean (i.e., no gradients etc) one pixel border it was fine. "'m not much good when it comes to image design. What does this mean, how do I create my original png file to meet the specification for Nine Patch?

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Android :: Drawing An EditText On Top Of An Image

Aug 14, 2010

I am creating a custom view which has an image. The image can be of any type. What i want to achieve is that i want to draw an EditText control on top of the image so that the user can add some values to it. I am not sure how to achieve this. The onDraw control will not allow me to draw any view right? I am new to android so any help would be appreaciated.

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Android :: Having Offscreen Drawing Of A View

May 26, 2010

I'm having a small problem with drawing a View offscreen to a Bitmap. The View is created using LayoutInflater.inflate(int resource, ViewGroup root) with null passed to the root parameter. The View has a fixed size (200x180 pixels). I can create a Bitmap for this View either by using the method View.getDrawingCache() or by calling View.draw(Canvas canvas) using a Canvas that in turn has a backing Bitmap. This works fine if the View doesn't change after the inflate. However, if I have a TextView inside my View that I will update, the size of the TextView is never updated regardless of what method I call on the View (requestLayout(), forceLayout() invalidate() etc.). If I display the View on screen directly, everything works fine (sizes are updated as needed, etc.). What is the correct way of drawing Views off screen and being able to update their layout when needed?

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Android :: Why Drawing In View Not Take Effect?

Mar 31, 2009

I'm trying to create a custom widget which looks lick HTML table. I chose to derive from TableLayout, which is the subclass of ViewGroup and View. What's confusing me is that the drawing I put into my override of View.onDraw did not take effect, until I moved the codes to the override of ViewGroup.dispatchDraw. I know dispatchDraw is a good place to draw something, but I'm just wondering why there's such difference in my practice?

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Android :: Drawing Text Upside Down

Apr 5, 2010

I'm trying to build a custom clock view in Android. See image http://twitpic.com/1devk7.So far to draw the time and hour markers I have been using the Canvas.rotate method to get the desired effect. However, notice that it is difficult to interpret the numbers in the lower half of the clock (e.g. 6 or 9?) because of the angle in which they are drawn.When using drawText, is it possible to draw the text at 45/90/180 degrees so that all text appears upright when my onDraw method has finished?

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Android :: Drawing On WVGA Screen?

Jan 7, 2010

I wrote a reading software. I implemented the page turning effect when user tap the screen to turn to next/pre page. The display is ok on G1 (320X200 size) but it can not works well on Droid(480*854 size), the font looks a litter fuzzy, not clear as G1. I explain my codes for page turning:

1) create a canvas A

2) create bitmap.

3) set bitmap on canvas A

4) draw the new page content on canvas A

5) the current showing page has been saved in bitmap before since we do from step 1) to setp 4),

6) In order to implement the turning effect of scrolling from left to right, I draw the old bitmap part and draw the new bitmap part until the whole new bitmap has been drawn. all of bitmaps are drawing by canvas.drawBitmap() in onDraw() function.

7) when step 6) is done, it means the new page has been shown on screen, and the bitmap has been saved to use in next page turning.

The above is the whole actions for my page turning. On G1, no problem. But on Droid phone, the font is not clear, I tried if I directly draw text by canvas in OnDraw() not through bitmap, It is ok, but it can not implement the page turning effect that I need. I don't know why, could you please help me to take a look and tell me where is wrong or miss some steps?

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Android :: How To Add A Line Drawing To ListView

Jul 28, 2009

When I try extending the View class to a subclass that will underline portions of the text drawn by ListView, the code compiles okay but results in a runtime exception apparently due to an improper class cast. Does anyone see what I've done wrong or have suggestions about getting access to the Canvas of ListView items so portions of text can be underlined?

Here is the code, which is the Efficient Adapter View/List example from ApiDemos with an added UnderlinedView class.

CODE:........

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Android :: FrameLayout For Drawing Overlays In Game?

Nov 15, 2010

I've got a game, a custom View class draws my gameboard. I'm thinking of drawing some elements on a separate layer above the gameboard. I could do this in the View's canvas code, but since they won't change frequently, was thinking of introducing a frame layout to display this top layer.I'm not sure which route to take, the only reason I wouldn't do the FrameLayout is because I'm not sure if it has an impact on battery life. Everytime onDraw() is called, the system probably has to do an alpha composition of the two layers. Is that more battery consuming than drawing the elements from that layer myself in my canvas on every frame? Hard to answer since I'm not sure how complex the drawing will be yet, any general opinions?

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