I'm wondering how vector drawing in Android with the Shape class may resemble another vector drawing standard. Since Shape is a Drawable, and Drawables are usually defined as XML, it sounds a lot like the vector drawing commands in SVG. My question is this: Has anybody created an XSLT transformation, or other mechanism, for converting an SVG drawing description into Android Shapes?
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I got this code from another post and modified it to work for me as a TextView. I tried using the code below but no transformation is happening? I trying to draw the canvas of the TextView with the given Matrix transformation.
import android.content.Context; import android.graphics.Canvas; import android.graphics.Matrix; import android.util.AttributeSet; import android.view.MotionEvent; import android.widget.TextView;
public class CTextView extends TextView { private Matrix mForward = new Matrix(); private Matrix mReverse = new Matrix(); private float[] mTemp = new float[2];
public CTextView(Context context) { super(context); mForward.postRotate(90); mForward.invert(mReverse); } public CTextView(Context context, AttributeSet attrs) { super(context, attrs);
mForward.postRotate(90); mForward.invert(mReverse); } public CTextView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle);
mForward.postRotate(90); mForward.invert(mReverse); }
@Override protected void dispatchDraw(Canvas canvas) { canvas.save(); canvas.concat(mForward); canvas.restore(); super.dispatchDraw(canvas); }
@Override public boolean dispatchTouchEvent(MotionEvent event) { final float[] temp = mTemp; temp[0] = event.getX(); temp[1] = event.getY();
mReverse.mapPoints(temp); event.setLocation(temp[0], temp[1]); return super.dispatchTouchEvent(event); }
In need in my application to fetch remote HTML document and parse some parts out of it. As I don't want to play with string parsing, which would be really lots of work, I thought about using XSLT, which would let me build small XML document out of HTML and then read it easy.Seems there is no XSLT support in Android? What other ways I could parse HTML without parsing content as simple string directly?
View 1 Replies View RelatedI would like to obtain the transformation matrix of an animation to calculate the position of the view that was animated.It seems the Animation class has a method called getTransformation that can be used to obtain the transformation applied to the view.However, if I use getTransformation before starting the animation I obtain the identity matrix.The program enters an infite loop because getTransformation seems to trigger onAnimationEnd (why?).How should I use getTransformation to obtain the transformation matrix of an animation? Is there another way to do this?
View 1 Replies View RelatedI 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.
I have a layout in which I resize an image by doing a transformation with prescale. After the scale the image has the right size, but the layout container around it cuts its size of. I want the layout container arround it to show to complete image. I just tried invalidate on the image, the container as well as requestLayout().
View 1 Replies View RelatedIf I have my app fetching content from my server, what mechanism should I use on my server to ensure that its my app making the request? Is there any way that I can sign the request to using my app's signature to show its come from my app and not from a stolen version or copycat?
View 4 Replies View RelatedPer the current implementation in Sensor Manager, the SensorThread is polling data per below code, final int sensor = sensors_data_poll(values, status, timestamp); it then checks the sensor type if it is registered and processes the data further. For an application which has registered for only one sensor, still to get that particular sensor data, SensorThread has to execute for atleast N-1 loop most of the time. Can anybody provide the insight as to, why SensorThread is waiting to check the sensor type to be returned by the HAL instead of sending sensor information which is currently registered by that application. Wouldn't that increase the performance?
View 2 Replies View RelatedI would like to know about the 'service discovery' mechanisms supported by android - particularly, Printer Discovery. Does android provide such a discovery option? example: support for snmp broadcast? I tried out an application "PrinterShare" link:
http://www.printeranywhere.com/mobile.sdf where Printer Discovery is achieved through ipp.
What I need is to perform some network operations in background inside a service. I want them to run in a service because, as pointed out in the "developing rest client application" talk from google io, I don't want to loose the result if the activity is brought in background. What sounds quite obvious is to use an Intent Service, and get the result as a broadcast. In this way I am sure the service will die and no consume any other resources when its done, but I need to convert the actions I want to perform to intents and back. Well, I was now wondering if it makes sense to bind to the service instead, at least for getting the result. And a more general question: is the bind mechanism suitable for one shot services, or it just make sense for persistent services? What happens if I call the startService method but the service is already active? Will it start another service, or will it call the onStartCommand of the same service? I am asking this because if I use "regular" non sticky service, it could happen that I need it to perform some action and I don't know if it is already active (and I don't want to have a queue of action waiting for onServiceConnected to be called.
View 7 Replies View RelatedIs there any article/paper that describes the transaction mechanism, why it is needed and how it works? eg: the ActivityManagerService class..
View 2 Replies View RelatedI want to use SMPP for sms sending rather then standard mechanism. Can I programmatically replace mechanism of SMS sending to my own?
View 1 Replies View RelatedJust curious, how does every feel about the build quality of their D2? I remember with the D1 a lot of people had problems with the keyboard coming up and also a problem with the slide mechanism feeling loose when the phone was closed. Any similar problems with the D2 out there?
View 8 Replies View RelatedWhat 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?
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.
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?
Is there any api for drawing financial chart in android.
View 2 Replies View RelatedI'm new to Android and smartphones in general, have lots of PC experience.What is the best method to convert a movie (DVD) so it can be played on my Captivate?Please mention details when answering, greatly appreciate it.
View 2 Replies View RelatedI would like to convert a Bitmap to a grayscale array of bytes (one byte per pixel). At the same time I want to just crop at section from the middle. Having looked though the various api's it is not clear to me what the best way would be.
1) What is ALPHA_8? is that grayscale? I have a feeling that the grayscale effect should be done via some "saturation" on the paint object, right?
2) once I have the Bitmap in grayscale and the right size, what is the best way to get that to a byte[] of pixels (one byte per pixel)?
I have a JSON Object with a latitude and longitude String on which I get the values doing this: String latitude = picInfo.getString("latitude"); String longitude = picInfo.getString("longitude");Then I convert them to floats like this: float latInt = Float.valueOf(latitude).floatValue(); float longInt = Float.valueOf(longitude).floatValue();And place them on a GeoPoint like this: GeoPoint X = new GeoPoint((int) (latInt*1E6),(int) (longInt*1E6) ); Debugging this values I can see JAVA approximates the values, is there anyway to keep them exactly the same?
View 6 Replies View RelatedIs it possible to convert a Canvas to Drawable?I may be really off in my solution, so if you have a better suggestion, please do tell me. This is what I'm trying to do.I'm trying to create a custom RadioButton. to set different states of the radio button, I need to use this parameter and one of the parameter to addState is Drawable. I know I can easily provide an image file and use it as a Drawable, but I want to do some image manipulation to the image before using it.There is a tutorial in ApiDemo called AlphaBitmap. It uses the onDraw method of a View to change a PNG file to full red and draw something with a gradient. So I customized it to shade an icon with gradient. So the problem now is that this is a View, and the View works perfectly fine if I add this View to the main view. But i want to convert this View to Drawable so I can use it as one of the parameter in addState. What I really want to achieve is to have different colour shades for different state of the RadioButton without providing different images to do so.
View 6 Replies View RelatedI have a picture taken using the phone's camera and in bitmap format. I want to send it over HTTP usinf Http post in ASCII.Any idea how to do it?
View 4 Replies View RelatedIs there a way to convert milliseconds to minutes using java.util.concurrent.TimeUnit?
This answer seems to suggest that you can use a TimeUnit.MILLISECONDS.toMinutes() method, and the documentation suggests that you could use the TimeUnit.MILLISECONDS.convert() method with TimeUnit.MINUTES - the problem is that neither TimeUnit.MINUTES or TimeUnit.MILLISECONDS.toMinutes() seem to actually exist.
Is There Anyway we can change .ipa to .apk?
View 2 Replies View RelatedI Have a Java application and I need to convert it to an Android application is there any resources to show how ? in Android developer site I didnt found anything like that! I need to use the Java methods and classes in android ,How it can be done?
View 1 Replies View RelatedI want to know if exists a converter for a j2me source-code to android. Listen, itīs not a runner, like a midp runner for android, it īs a converter for a source code. A tool for translate a source code for a new plataform, from j2me to android.
View 6 Replies View RelatedI it possible to Convert MP3 to EPUB format ?
View 7 Replies View RelatedGot a T-mobile pulse with unlimited txt's and data.
When i type a txt message, as soon as i hit 4 txt,s in length a message flags us saying 'converting message to mms'. Which it promptly does. If i send the message it does indeed send it as an mms. Anything under 4 in length is sent as a txt message
I spoke to T-mobile and they said update software to fix it. Which i did. And it did not fix it.
Phoned them back and they did not have a clue.
Not being able to send long text messages without being charged mms service rate.
Trying to draw a circle at a longitude/latitude position. The circle below doesn't show up, does anybody know why?
View 5 Replies View RelatedI 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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