Android :: Code To Draw Hands On Canvas?
Jun 28, 2010I want to draw hands on the canvas which is smooth and closed arc. How can I draw it? Any code regarding graphics or reference class to draw it will be helpful.
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Android :: Reset Canvas - Draw A New Bitmap Into The Canvas
Jul 7, 2010My 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..
Android :: Draw From Old Canvas
Oct 28, 2010I'm making an App that needs to be able to draw new graphics on top of the last set.
This is my current onDraw() method -
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.WHITE);
if(points.size() > 0) {
//do some stuff here - this is all working ok
canvas.drawLine(p1.x, p1.y, p2.x, p2.y, linePaint);
}
}
Basically, I need to draw the new graphics as a layer on top of the last, so what I'm looking for is a way to carry the image of the last canvas to the current. I have tried to figure it out myself using the canvas.setBitmap() method but it acts very funny.
Android :: Draw Text On Canvas?
Oct 28, 2010i'm trying to develop a simple pie chart class for android. For now, it can take a map of labels and values and draw the pie chart. I'm yet to add the legends for the pie, which is where i need to place the texts near small rectangles on the screen corner. Any help appreciated, since i'm new to Android dev.
View 1 Replies View RelatedAndroid :: How To Repeatedly Draw On A Canvas?
Sep 7, 2010My requirement is to draw a line on canvas for every second. I am able to draw the line but its clearing the previously drawn lines when I call myview.invalidate(). Now my question is how to draw a new line retaining all the previously drawn line on the same canvas.
View 5 Replies View RelatedAndroid :: Drawable Cannot Draw Into Canvas / What To Do?
May 26, 2009I want to load an icon from resource and draw over it. But I cannot get it into a canvas. Can anyone please help me with the code below. If I uncomment c.drawColor(), I get blue color as expected. So the problem is on icon.draw(). code...
View 2 Replies View RelatedAndroid :: Can I Draw Views On Canvas
Sep 28, 2010I want to load e.g. LinearLayout with some Buttons from XML and draw it on Canvas in a way that the Views behave normally (I can set onClick actions for the Buttons and when I press a Button, it changes it's background drawable). Can I do this?
View 1 Replies View RelatedAndroid : Way To Draw Nine Patch Onto Canvas?
Jan 24, 2010I'm trying to draw a nine patch onto a Canvas object on the Android. What seems strange is that although I generated my nine patch using the draw9patch tool, the constructor for NinePatch requires an additional byte array called the "chunk" to construct the nine patch. Why isn't this simpler? What is the "chunk"? And if you have done this yourself, how did you go about it?
View 1 Replies View RelatedAndroid : Can I Draw Outside Bounds Of An Canvas
Oct 26, 2010I'm porting an app written in a graphics environment that allows drawing to happen outside the bounds of the clipping rectangle. Any way to do this in Android?
View 1 Replies View RelatedAndroid :: Using StaticLayout With Canvas To Draw Text
Feb 4, 2010I have figured out the static layout this far, but I have no idea how to make it display my text anywhere else but in the top left corner. StaticLayout layout = new StaticLayout(text, getTextPaint(), 140, android.text.Layout.Alignment.ALIGN_CENTER,(float)1.0, (float)0.0, true); layout.draw(canvas);
View 2 Replies View RelatedAndroid :: How To Increase FPS When Draw On Canvas - Now 20 - Desired 40-50
Jan 18, 2010First I want to say that I have read many articles on this subject in this forum and on some external resources(very helpful was Robert Green's diary at www.rbgrn.net and www.droidnova.com).
However, despite all of this I want to start topic regarding FPS, and ask for advice from experienced game developers on Android platform.
My main question is "How to improve FPS when draw on Canvas?"
I have implemented simple 2D arcade game skeleton for testing purpose. Now I have ~20 FPS and want to increase this value to 40-50 FPS, if this is possible of course. I know about Open GL ES, but so far I am interested in Canvas.
In every frame I draw following stuff on the screen: - Canvas.drawColor(Color.BLACK) - to clear the screen - 1 spaceship PNG 24x24 image 1.25 kb - 5 asteroids PNG 64x64 image ~8 kb each - from 1 to 30 bullets PNG 8x8 image 299 b - 4 30x30 Rectangles - to control objects on the screen
After running my app, in logcat I can see following output data: - Average FPS: 20 (Total frames drawn: 1945 in 97 seconds) - Average onDraw: 32 ms (clear canvas: 3, draw game stuff: 26, draw controls: 1) - Average updatePhysics: 1 ms
From this output I can assume, that my main problem here is "draw game stuff" wich includes: - draw 1 spaceship - draw 5 asteroids - draw from 1 to 30 bullets
Here is my code:........................
Android :: Draw Canvas Using Blur Effect?
Dec 30, 2009I need do draw on Android's Canvas using Blur effect, it is a very simple feature, I need to draw a circular area, which is blurred (the foreground) and the background transparent, I can do everything with manipulating the colour alpha to do it with custom transparency but I need it to be blurred instead of transparent..
View 1 Replies View RelatedAndroid :: How Google Map Draw On Canvas In Droid
Sep 16, 2010Can anybody tell me or send me some links if there is any..which tells how Google map draw on canvas in android. what is the logic behind that.
View 1 Replies View RelatedAndroid :: How To Draw Canvas In Respect Of Phone Orientation?
Oct 11, 2010There is no problem with portrait mode but when i try my app on landscape mode it doesn't look how it should.What is general approach to solve this problem.My first idea is replacing X and Y places.If i am on the right track how should i do this ? Should i use an if statement at the beginning of the onDraw() function and write entire same code twice (one for x,y and other is for y,x) ?
View 2 Replies View RelatedAndroid :: Draw Multiple Shapes Using Loop - Canvas
Aug 7, 2010I am very new to android development and have been trying to draw a square comprised of multiple smaller rectangles of different colours... Like a Mosaic essentially. Basically at the moment I am reading values from a file which assigns the colour to the smaller Rects. I am using a pair of nested for loops to try to draw the small Rects sequentially, line by line. However when the program finishes there is only one small Rect drawn which is the last one to be drawn and its colour corresponds to the first value read from the file. Here is some of my code to show you what I mean:
public SnapshotDraw(Context context) {
super(context);
for(int a = 0; a < 63; a++){
for(int b = 0; b < 63; b++){
fileName = PREFIX + "2" + EXTENSION;..............
Android :: Draw A View On A Canvas By Giving X , Y Postion?
Sep 29, 2010How can i draw a view on a canvas by giving the x,y position in the canvas.
For example,
I have custom view myView, which was created by inflating one of my layout.xml file.
Now i want to draw this myView on the canvas at position (x, y).
How can i do that? code...
Android :: Draw And Scale A Bitmap On A Canvas Using Bicubic Interpolation
Mar 25, 2010I want to draw a bitmap on a canvas with bigger size than it is. I can use canvas.drawBitmap(bitmap, null, destRect, null); but that gives a poor quality, as the result is pixelated, if the source image is sightly smaller than the destination rectangle. How can i draw my bitmap using bilinear or bicubic resampling?
View 1 Replies View RelatedAndroid :: Draw Translucent Bitmaps Using Canvas Without Having To Resort To OpenGL?
Mar 17, 2010I have a Bitmap object and want to render it to a Canvas object with varying levels of translucency (i.e. make the whole bitmap partially see through). For example, I have sprites in a game (that are drawn over the top of a bitmap background) that I want to fade out from being opaque to being invisible. Can I do this without having to resort to OpenGL?
View 2 Replies View RelatedAndroid :: Method To Draw Bitmaps Faster On Droid Canvas / OpenGL?
Jun 15, 2010I currently have a game written using the Android canvas. It is completely 2D, and I draw bitmaps as sprites on the canvas, and it technically works, but I have a few features that I need to add that will require drawing many more bitmaps on the screen, and there will be a lot more movement.
The app needs more power.
What is the best way to go from this method of drawing Bitmaps on a canvas to using OpenGL so I can draw them faster?
Android :: Using SKIA Canvas In Native Code
Oct 4, 2009I set out to use SkCanvas and other native SKIA classes but I could not find any sample code. After a week's of search and diving deep into Android source, I got it working. Below in my blog, I have detailed, how to use SimpleJNI native sample, to get native canvas going. If you find it useful or I did something wrong let me know http://matthiyosi.blogspot.com/2009/10/using-skia-in-android-native-c...
View 6 Replies View RelatedAndroid :: Sample Code To Draw Rectangular Pulse In Droid Screen?
Jul 22, 2010Can some one show me the sample code to draw a rectangular pulse in android screen. I want to generate a bunch of them on x axis (which I imagine as middle of screen).
View 3 Replies View RelatedAndroid :: Sample Code To Draw A Circular Gradient Mask On Bitmap In Droid?
Nov 11, 2010Is there a way to draw a circular gradient mask on a bitmap in Android? Trying to produce something similar to a foggy window. Click the window and a transparent circle shows up revealing whats behind the window. Prefferably using a gradient so the center of the circle is completely transparent and the further out from the center the less transparent. Is this possible?
View 1 Replies View RelatedAndroid :: Draw Route Path Draw Function
Sep 5, 2010In my android application I use this method in "draw" Overlay class for draw route on map. Can someone tell me if this method is good (in terms of performance) for route draw on map or I must to put code in Thread ??
I'm new to android.
public synchronized void draw(Canvas canvas, MapView mapView, boolean shadow) {
if (pointsAndTimes.isEmpty()) {
return;
}
Projection projection = mapView.getProjection();
Paint paint = new Paint();
paint.setARGB(250, 255, 0, 0);.............
Android :: New Hands Free Sms App
Sep 30, 2010Found new app on the news this morning. So much fun! Totally hands free. Just search Google for AdelaVoice. Works good with chompSMS. Be sure to read the command page. Will even send voice text, but I haven't tried that yet. Still in beta but will be the bomb when it is finished!
View 4 Replies View RelatedAndroid :: Hands Free Texting
Feb 7, 2010I just published a Hands-Free texting app called Shout. Just say a phrase like "Text Doug With I am On My Way Home" and Shout will search your contacts for matches, confirm "Sending 'I am on my way home' to 'Doug Hansknecht', correct?". Simply tap the Big Green Yes button and you're done.
There's a video demo here:
How To Send AT Commands Based On BT Hands-Free Profile In Android
May 5, 2014I am trying to establish Bluetooth connection between an Android device with other mobile phone over Handsfree profile. I am using following code -
Code:
private static final UUID MY_UUID = UUID.fromString("0000111F-0000-1000-8000-00805F9B34FB"); // UUID for Hands free profile
// Some code...
// Get Bluetooth Adapter.
m_oBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
// Some code...
// For paired BT device, getting a connection established.
[code]....
I can create RFCOMMSocket using above code.
Now I want to send AT commands based on Bluetooth Hands-Free profile. e.g. If other mobile phone receives a phone call, my Android device can reject this call by sending AT command- "+CHUP". I am not sure whether this is possible or not.
At this point, I am stuck. I have read Bluetooth APIs where I found -
Code:
BluetoothHeadset.ACTION_VENDOR_SPECIFIC_HEADSET_EVENT
Can we use this Intent for sending AT commands? Is this a proper way to send AT command based on Bluetooth Hands-Free profile?
How To Send AT Commands Based On BT Hands Free Profile In Android
May 20, 2013I am trying to establish Bluetooth connection between an Android device with other mobile phone over Handsfree profile. I am using following code -
Code:
private static final UUID MY_UUID = UUID.fromString("0000111F-0000-1000-8000-00805F9B34FB"); // UUID for Hands free profile
// Some code...
// Get Bluetooth Adapter.
m_oBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
[Code]...
I can create RFCOMMSocket using above code.
Now I want to send AT commands based on Bluetooth Hands-Free profile. e.g. If other mobile phone receives a phone call, my Android device can reject this call by sending AT command- "+CHUP". I am not sure whether this is possible or not.
At this point, I am stuck. I have read Bluetooth APIs where I found -
Code:
BluetoothHeadset.ACTION_VENDOR_SPECIFIC_HEADSET_EVENT
Can we use this Intent for sending AT commands? Is this a proper way to send AT command based on Bluetooth Hands-Free profile?
KitKat 4.4 :: Hands Free Driving Mode On Nexus 5 With Android?
Jan 2, 2014I went through all the settings and could not find a way to configure the phone to speak the SMS, the caller id, etc....when I am driving.
On my other phone, a samsung galaxy s3 from verizon with android 4.3, there is a "driving mode". I thought it was a true android capability, but could it be a samsung feature instead ?In any case how do I get the Nexus 5 with Android 4.4 to do the same ? can I get it to do it using an NFC tag...
HTC : Hands On Demo Of EVO 4G
May 19, 2010YouTube - Hands-on demo of the HTC EVO 4G
View 8 Replies View RelatedHTC EVO 4G :: Hands Free Dialing
May 28, 2010Will you be able to use a Bluetooth earpiece to do hands free dialing? I know this is a problem with the Incredible and the Moto Droid.
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