Questions tagged [drawbitmap]
68 questions
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2 answers
Display image in the same spot on multiple screens | Android
I'm creating a game that is full screen. I'm using an image for the background and I'm drawing images on top of it. The background image looks great in all the devices, but I can't draw the overlay images in the same spot on all devices.
For example…
Dave
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High dpi image drawing performance issues on canvas (android)
I download a image with following properties using AsyncTask and then resize and down sample using the logic in this url. In addition image loaded in ARGB_8888 config to in memory (image is a jpg file).
When I segment this image to small images and…
pats
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Display content over image on hover/touch in Android Studio
I placed some circle images in my layout and I would like to display content when the user hover on them or touch an image. I tried to search on google, but I found nothing useful about this topic.
I would like to display (i.e. on test1 image) a…
Marcus Barnet
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SurfaceView drawBitmap take too long, the longest time consuming 200ms
I am using Surface to show bitmap from JNI, to show a video, this is my code :
SurfaceHolder holder = surfaceView.getHolder();
while(true) {
if(getBitmap() == null) {
continue;
}
…
ml_bright
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- 1
0
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1 answer
Android drawing scaled Bitmap without OutOfMemory error
I need scale my bitmap to screenSizeAverage / 3. When I do it like this, I have sometimes OutOfMemory error.
screenWidth = size.x;
screenHeight = size.y;
screenSizeAverage = (screenWidth + screenHeight) / 2;
Bitmap b2 =…
Dominik Filip
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0
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1 answer
Coordinates of type "float"
Sorry my bad english.
I tried to draw something on the screen with drawText(), drawRect() and drawBitmap().
WHY coordinates must be of the "float"?
They should be of type "int"?
user3106572
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Why the background bitMap is not fullScreen?
I have 2 question.
First why the background is not fullscreen but I have this space bottom?
Second why this strange delay of ship in the space when the background is not drawn?
package com.caccagame;
import android.content.Context;
import…
Maksym Bodnar
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- 8
0
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1 answer
Canvas.DrawBitmap unexpected result(BUG or strange behaviour) Xamarin Android
So i have an problem with method of Canvas.DrawBitmap(), that draws unexpected result.
Lets see my example:
Source image
I have two cases(just for test):
I want to draw Red rectangle from 0,0 and give for him size 1/4 of image,also i want to…
XTL
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Canvas set left, top, translate and rotate bitmap
I want to set left and top Bitmap coordinates then apply Y translation and rotation on this Bitmap but I can't... the result is not what I expected.
Here my code :
point[0] = centerX-bitmapWidth/2;
point[1] = centerY;
point[2] =…
Florian Mac Langlade
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2 answers
Performance difference between drawBitmap and createScaledBitmap
In order to support different size of screen resolutions, I programmatically scale the bitmaps in my android game application using SurfaceView. I performed it by using drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) method. I saw a…
adba
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1 answer
Canvas.drawBitmap Showing Black
Why is my first drawbitmap not working but my second an third ones are? All I get is a black screen for the first one but the others draw fine.
FULL_COMPOSITE_SIZE = new Size(1920, 1080);
PREVIEW_COMPOSITE_SIZE = new Size(640, 360);
…
w9jds
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1 answer
canvas drawBitmap doesnot display camera preview
I am not able to display the camera preview on my android screen using the canvas.drawbitmap. The screen is all black, I verified the drawtext method is working. Please let me know what I am doing wrong !!
class CameraView extends SurfaceView…
user3029579
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Canvas.drawBitmap performance on Android 4.3
I have two Samsung S4, one is 4.2.2, the other 4.3. I am running the same game, which is drawn on SurfaceView. On 4.2.2 drawing takes about 30ms, while on 4.3 almost 100ms. Drawing is performed from the other thread. I have checked, that the problem…
Piotr
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not able to draw image on canvas of surface view in Android
I am drawing an image using drawbitmap method on a canvas of surface view which is an overlay surface on my camera preview.The image drawn is a portion of captured image to guide the user to capture next image with a proper overlap.Now when I am…
Fayaz Ali
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2 answers
Android Live Wallpaper with canvas.drawBitmap is way to slow
I just started android programming this week and am curently working on a Live Wallpaper.
I have 2 Images, the Background Image (720x1280 png) and a slidebar (2276x290 png) that slides from right to left in an endles loop. my Problem is I only get…
user2639487
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