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
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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).
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 RelatedAs 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 RelatedI have written the following to spin my icon on the center of the screen and instead it rotates around the upper-left corner (i.e., origin x=0, y=0 of the ImageView). It should be simple to set some attributes of the ImageView or the RotateAnimation, but I can't figure it out.
CODE:.......................
I have list of Latitude & Longitude of Google map. now i want to animate to center of these all co-ordinates can any one guide me how to achieve this. in other words i want to calculate middle distance or lat,long positions so that user could see most of the overlay points.
View 1 Replies View RelatedI 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 RelatedI'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].......
Is there a way to center an image horizontally based on another image? Could be from xml or coded.For example one button on top and another button below (i.e. android:layout_below="@+id/button1"), but centered horizontally based on the first one.
View 1 Replies View RelatedI want to display the image like first image but my images are displaying like second image
i want to display images like first image, like center in screen and equal spaces top and bottom look first image,but my images are displaying not center in screen and no spaces in top,what can i do for display image like first images.anybody knows,please give solution for that.
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 RelatedI 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...
How can I center ImageButton in the this Linear Layout
<Linear Layout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/main">
ImageButton
While do rotate, I am not getting image at center of the screen. My xml code is...
View 2 Replies View RelatedI want to create an Android ImageButton in the xml file with a background image, and a smaller icon on top of that, right in the center. For some reason, it's not obvious how to do it, and documentation is no help.code...
However, no matter what I try (putting "wrap _ content" instead of absolute numbers on layout _ height and layout _ width, the icon remains in the top left corner of the button. If, however, I have no background image (i.e. a system default white button), the icon does go into the center. The button also goes into the top left corner when I use a color instead of an image for the background.
Why does this happen, and how would I actually get the behavior I want-- that is, a background image with the icon in the center?
I've tried all scaletypes, but all of them result in the image to be at the left corner of the imageview.
View 2 Replies View RelatedI 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 RelatedIn my application, i need a static image to be rotated in HTML.
View 1 Replies View RelatedI have the following layout, which is 1 icon on the left and 2 text views (stack on top of each other) on the right. I would like to have the text1 vertically center in the panel and when I make the text2 Visible.GONE. Can you please tell me how can i do that? code...
View 2 Replies View RelatedIs it possible to set the center of an ImageView without using paddings?
What I'm trying to do is, to place a part of an image outside the screen and animate it so that parts of the image become visible while other parts become unvisible.
Another problem is that when an image is bigger than the screen size it gets cropped. How can you disable cropping of the image?
And what kind of animation should be used? Should I go with RotateAnimation or is better to rotate the canvas ?
I have following example code:
Character c = CharacterFactory.getCharacter(CharacterEnum.SpecialCharacter); //factory has applicationContext reference to get bitmaps from R. ... Paint bitmapPaint = new Paint(); ... View::onDraw(Canvas canvas) ... canvas.drawBitmap(c.bitmap(), 0, 0, bitmapPaint);
For some reason (must be something simple) I do not see the bitmaps at the 0,0 of the canvas. Inspecting the bitmap and etc does not show anything obvious (nulls), I must have missed something. Is there something I should be paying particular attention to while drawing bitmaps?
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 RelatedI'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 RelatedMy layout design is a TextView with long text and a ImageView to the right of the TextView. I want to center the ImageView in its parent vertically, so I used android:layout_centerVertical="true", but it turned out that the ImageView was aligned to the bottom of its parent. If I don't use layout_centerVertical property, the ImageView will be aligned to the top of its parent. How can I solve this problem? code...
View 1 Replies View RelatedI 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?
I am designing a screen , in which I am showing a gallery along with other UI components . The selected item is shown in the center of the gallery . I want to make the size of selected item somewhat bigger than the rest items of gallery .
View 4 Replies View RelatedI 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 RelatedI'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 RelatedI have an Linear Layout with horizontal orientation Within that I have image on left side and textview on right side . How to align those image and textview in the center horizontal without using margin?
Here is my code:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
androidrientation="horizontal"
android:background="@drawable/menu_colors"
android:gravity="center_horizontal"
>
[Code].....
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?
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