Android :: Rotate Particular Image Among Multiple Images Drawn To Canvas In Droid
Jun 16, 2010
I need a small help on rotating one image around its center of axis among multiple images which are drawn to canvas in android.
I am loading images to canvas like below.
canvas.drawBitmap(mMachineBackground, 0, 0, null);
canvas.drawBitmap(mMachineRotator, 0, 0, null);
I want to rotate only the second bitmap around its center of axis instead of rotating the entire canvas(which includes first bitmap also).
View 2 Replies
Nov 10, 2010
Rotate image on canvas around its center . i tried some example from net but i am failed
if i am using bitmap.creatbitmpa with matrix i am getting error
Please suggest me which is better
View 1 Replies
View Related
Sep 24, 2010
As we know, we can rotate a bitmap through 2 ways. The 1st way is: Matrix mt = new Matrix(); mt. postRotate (degree);Bitmap bitmap = CreateBitmap(src, 0, 0, w, h, mt, true); canvs.drawBitmap(bitmap, 0, 0, paint); In this way, we always need create new bitmap for every rotation, it is not good way for high performance game or app.The 2nd way is: canvas.save(); canvas.rotate(degree); canvas.drawBitmap(bitmap, 0, 0, paint); canvas.restore();In this way, we avoid creating new bitmap frequently, but the rotation bitmap is distortion, the bitmap quality is worse than first way.So, Is there 3rd way to rotate bitmap with high performance and good quality? Your any comments are really appreciated!
View 3 Replies
View Related
Sep 23, 2010
I have a gray gradient drawable (png image in res/drawable). If I draw it on a white Canvas it looks banded (not smooth). If I put the gradient on white background in GIMP, and then draw this drawable on the Canvas, it looks great. What's the problem? I tested this on Nexus One. Calling setDither(true) on the drawable has no noticable effect.
View 2 Replies
View Related
Jul 15, 2010
Is there a method which returns the width ( in pixels ) of a text to be drawn on an Android canvas using the drawText() method according to the Paint used to draw it.
View 1 Replies
View Related
Sep 6, 2010
Any straight forward way to measure the height of text? The way I am doing it now is by using Paint's measureText() to get the width, then by trial and error finding a value to get an approximate height. I've also been messing around with FontMetrics, but all these seem like approximate methods that suck. I am trying to scale things for different resolutions. I can do it, but I end up with incredibly verbose code with lots of calculations to determine relative sizes. I hate it! There has to be a better way.
View 1 Replies
View Related
Sep 27, 2010
I am trying to rotate a canvas with canvas.rotate and move an object on it at the same time. The problem is that with the rotation, the coordinate system of the canvas rotates as well, so I get cases when my object is supposed to be moving along the y axis, but the y axis is rotated on place of the x axis. It is a mess. Is there a way to go around this?
View 1 Replies
View Related
Oct 12, 2010
i want to create a bitmap / image which has many images like "Collage" which has more then one images in a single picture. I have stored all my images in a grid view but now i want to create a single image from all those images. And even i want to make few images click able so what can be the road map to do this ? any sort of help / example will be helpful. search for a for collage image image in google . one can see what it is exactly.
View 2 Replies
View Related
Mar 10, 2010
I have 3 images that I want to add one after other on a canvas.
This is my code...
but this is not working.
Can someone please tell me what I am doing wrong here.
View 1 Replies
View Related
Dec 19, 2009
I'm using this camera code to ask the camera to rotate the captured image data... this seems to work on all phones, except the Droid. Has anyone else seen this? The image data is always landscape, however, the native camera app produces portrait images OK. I wonder if the Droid will only respect the new Camera.Parameters.set Rotation() method, but this seems to only be available in sdk level 5?
View 11 Replies
View Related
Nov 16, 2010
I'm developing an application which allows user to edit an image and save that edited image as new image on sd card I want to get the current state of the canvas object.
View 2 Replies
View Related
Feb 13, 2014
I'm having Android code to move, zooming and rotation image. And it working perfect. Now I want to set ellipse on the image and changing it place upon image changes. The ellipse is drawing perfect in moving and zooming cases, but I don't know how to set new points for the ellipse if I rotate the image. this is the code I'm using:
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);[code].......
View 2 Replies
View Related
Sep 28, 2010
I have some images (.png format) that I use as drawables on the surface of canvas in my android app. The problem I have is mspaint only allows a rectangular image file, so whatever I draw on the screen always shows up in a box. Is there a (free) program or way I can edit the png files so that when they are drawn on the surface of my canvas, they are drawn to shape?
View 1 Replies
View Related
Jun 27, 2009
I rotate image using setImageMatrix() function. I first use getImageMatrix() function to get matrix then i use matrix.postRotate (90). Rotation works fine. But it rotates around top/left corner of image. i want to change that pivot point to center of the image. how can I do that?
View 3 Replies
View Related
Jan 1, 2010
I have a png-picture in ImageView rotatedimage = new ImageView ()
Is there a better way to rotate it in changing directions than the following way? There I have to create a new picture for every new rotating angle and add it to the layout...
View 2 Replies
View Related
Aug 7, 2010
I 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;..............
View 3 Replies
View Related
Jul 28, 2010
I can't seem to rotate properly an image on the entire screen. The problem is that when the image rotates, you can see the background in some areas. I want the image to fill the screen also when it rotates. Here is the layout.I start the animation in onResume. As I said, the image rotates but there are background areas when it does rotate. I've tried using images much bigger than the screen but still it doesn't do what I want. I don't care that outer regions of the image are not visible. I just want the rotation to fill the screen. I guess ImageView sets its width and height initially and then, when it rotates, it uses those dimensions. Is there a better way to do this?
View 2 Replies
View Related
Feb 12, 2010
In my application, i need a static image to be rotated in HTML.
View 1 Replies
View Related
Nov 7, 2010
Basically what I am trying to accomplish is I want a canvas I can pass bitmaps to, to be displayed on the screen with the rest of my view objects (buttons, textviews, etc).
View 1 Replies
View Related
Jan 10, 2010
I thought it may have been my eyes, when I thought I saw an upside-down Android icon for a contact the other day, on my Android 1.5 device - Samsung Moment. I was playing with contacts just now, and I saw the upside down icon again. Then I was curious, went to see other contacts, and I noticed the Android icon facing right, then facing left in other instances. There is no rhyme or reason as to when the Android icon will change positions, but it is there.
View 1 Replies
View Related
Feb 1, 2010
I draw 2d images on the canvas using the following tutorial.
http://www.designerandroid.com/?cat=3
I want to save what ever displaying in a canvas as a jpg image, how can i do it?
View 1 Replies
View Related
Nov 11, 2010
I am developing game.i am displaying gun object center bottom of the screen.when user tap on screen i need to rotate gun that direction.i done rotating image.but when user tap on screen i need to rotate image that direction.
View 1 Replies
View Related
Sep 7, 2010
We can view an image with What if we have some images? How can we put the extras to let the viewer know we have /sdcard/a.jpg, /sdcard/b.jpg, /sdcard/c.jpg ? I hope to do this in a time because starting an activity is very expensive. Code...
View 2 Replies
View Related
Apr 7, 2010
I have a views on the main class and many other class with an onDraw() method to draw a canvas.
Java:
CODE:.....................
View 3 Replies
View Related
Sep 15, 2010
Does anyone know of an animation/method that can rotate an image around smoothly to face a point, such as where the user is touching?
View 1 Replies
View Related
Sep 10, 2013
At canvas there are many methods (canvas.rotate (35); canvas.drawBitmap (myBitmap, x, y, null); and many other things), but the method of mirror reflexion of image is absent (or I have not found it). At Bitmap too not that is not. Is it possible to reflect horizontally on canvas the image given Bitmap?
View 1 Replies
View Related
Nov 13, 2009
I have a folder on sd-card in which I keep photos edited in my application. Im trying to force deafult android image viewer to see all pictured in that folder. Unfortunately I am able to see only one picture. The "next" and "previous" arrows are disabled.
The code i use to see only one picture:
CODE:.....
How to activate the browsing option? how to call the intent so that every picture in that folder would be visible?
View 2 Replies
View Related
Jul 28, 2009
I build an email application using intents. I can send a email with one image attachment. I tried to attach multiple images using "putExtra ()" method.But it still send only a single image.
View 7 Replies
View Related
Oct 14, 2010
I need to include multiple images in my Android app. It's like an image viewer/slideshow. Currently I switch between pictures from /drawable-mdpi dir simply with ImageView and adapter, using gestures to left/right. Works but nothing impresive :/
Basically I could use something like Android (2.1) gallery with some image show animation.
1st question: what's the best way to include many (50-100) fullscreen images in App?
2nd: is it possible to use ViewFlipper animations directly to images? or do i have to somehow populate Views?
View 1 Replies
View Related
Aug 22, 2010
During my game loop I am constantly loading images using BitmapFactory.decodeResource(getResources(), R.drawable.objectx); Most of the time I'm calling images that have already been decoded earlier. Am I slowing down execution by decoding the resource every time? Is it better to store every image into a Map (or Dictionary) at the beginning of the program? If so, how do you get the resource IDs for all images in the drawable folder?
View 1 Replies
View Related
