I have a problem with one of my app. I try to make a paint application but nothing is draw on the screen (except the first circle which is draw on the launch).The log Cat seems to be correct and i get the right x/y coordinates.I think i do something wrong on the ondraw.do you see my problem?
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I'm trying to start activity by sweeping across the screen, it works fine for all the other screens, just this screen that doesn't fire the onTouch at all? Would you mind helping me? I've tried debugging it and still have no idea at all. Below are the codes, sorry for not putting snippets only as I thought I might did something wrong elsewhere
I'm also looking for advice on implementing sweeping to change screen. I've read about ViewFlipper and I know it will work very well, but I've around 8 screens with different backend coding needed.
CODE:.....................
I'm trying to make widget gallery at homescreen. I'm currently stuck because didn't find any example how to detect on touch in widget. Could someone help me?
View 5 Replies View RelatedI'm trying to develop a touch control, but I'm getting some problems with the onTouch method. Basically, only the event ACTION_DOWN is working. The others seems to be in trouble.My application has a LinearLayout, containing a VideoView.I have a HTC Magic updated to 1.6.
View 3 Replies View RelatedI am relatively new to this still, and I have been developing a small app that would benefit greatly from a user being able to press 2 buttons at one time. What is the best method for achieving this? I dont think that an OnClickListener works like that, and I have seen examples for doing this with an OnTouch event. However, I do not know how to set up button presses with an OnTouch event.
View 3 Replies View RelatedI want to intercept the OnTouch event in a PopupWindow, but it failes everytime. Here is the code snip:
CODE:.....................
When the activity started, I can click the button to show the popup window correctly. But after that, nothing happens when I touch the popup window's view. But if I touch any where outside the popup window, the log Log.d("Demo", "layout::onTouch >>> view: " + v + ", event: " + event); will work.
It looks like when I touch the view of the popup window, the touch event has been consumed somewhere?
I have a listview and implemented onclick and also onfling.problem is when i do fling(swipe left to right), onclick event of listview is also getting executed.How to overCome this problem? how to differentiate touch(tap) and fling(swipe) in listview? code...
P.S: is it possible? to comment the onclicklistener of listview and writing the same logic in any onTouchEvent? but still i doubt onfling will call ontouch. right?
I'm trying to implement pinch-zoom in an app I'm making and am having issues with the onTouch event. It appears that the pointer up & down actions do not fire immediately, like you won't get a pointer up or down until an action move occurs. So what happens if both fingers hit the screen nearly simultaneously is that the 2nd finger (should be pointer(1)) gets a move action before pointer down is called, making the code think it's a DRAG not a pinch zoom.
View 2 Replies View RelatedLet's say I have MyActivity and inside my onCreate method I initialize MyBackgroundView, then MyPlayer1View then MyPlayer2View. I want to be able to touch the screen, figure out if I have touched Player1 or Player2 and then respond with changes to the players if I have touched them.
My problem is, where do I put the onTouchListener? Can only MyBackgroundView listen for touches, or can the players listen for touches too? If MyBackgroundView can only accept touches, do I need to call view.ontouchlistener that says, you have touched me, and I have a player at those coordinates, so I'll pass the motion event to the player and let it handle it? Or do call view.ontouchlistener in each of the players that says, you've touched me, now I will react to the motion event?
I have a situation where I have some textview on a framelayout that I have a onTouch event wired in order to simulate dragging. I alos want to enable the ability to have a context menu display when the user long presses the textview. Now that I have implemented the context menu functionality dragging no longer works since the longpress is always served by the context menu event.Does anyone know of a workaround for this.
View 2 Replies View RelatedI am trying to code an app where you can paint (Finger paint) free hand on a running video in a VideoView.I have the two things running separately but not together.I can draw my paint on a balance screen and i can play my video on my videoView, which is implementer in an xml layout.Is there a way to overlay the xml videoview View with an other View which can be drawable?
View 1 Replies View RelatedI'd like to include a simple draw feature on my app. A friend told me I can't use canvas because I need to control the frame buffer and not redraw the entire screen every for every frame.He suggested I find a openGL 2d engine.I've searched around and I've only found Rokon which doesn't have any documentation and the examples aren't quite what I need.Any suggestions?
View 2 Replies View RelatedI have to get the height of the text for i have specified the text size. is this possible? i need to get the width using the Paint object and without.
View 2 Replies View RelatedIs there an app out there that lets you take a picture of your room with the camera,then preview different wall colors?
View 1 Replies View RelatedIs it possible to change the unit for Paint.setTextSize?As far as I know,it's pixel but I like to set the text size in DIP for multiple screen support.
View 1 Replies View RelatedI want to create a paint and update loop in android for game animation on a canvas but I am having trouble as I can't seem to get the threading to work appropriately. It seems to crash almost immediately.
Here is what I have tried:
CODE:................
Also when I drop the wait down lower it crashes faster. Is there a more appropriate way to approach this?
Changed to this:
CODE:........
This results in the same error...
I'm new to Android and Java programming and I've manage to create a simple paint program, but how do I add a zoom feature? Right now I'm just extending the View class and using the "on Draw()" method. Do I have to use a Drawable to be able to add zooming functionality? I'm not really understanding the differences between the two. If I am way off base then please point me to a good tutorial on paint/zooming.
View 1 Replies View RelatedMy app uses a custom View that does a lot of text drawing.To ensure my text is always readable I've been using the result of calling getTextSize() on a newly-created Paint() instance as the minimum size. Docs say calling 'new Paint()' sets attributes like text size to default values.One of my European users just got a Motorola Milestone phone and reports that some text is unreadably small.I believe I've duplicated this using the WVGA854 skin in a 2.1 emulator.Run in that emulator my app's smallest TextViews look fine, but the text I'm drawing myself using Paint instances where I haven't changed the text size from the default is too small. I confirmed this by commenting out all setTextSize() calls in my View subclass: the text becomes too small to read comfortably.
View 5 Replies View RelatedI'm looking for an application that will allow one to open an image (or pdf, preferably) of a worksheet and allow one to "do" that worksheet; in other words draw/write on the image/pdf.
View 4 Replies View RelatedTo explain i have a bitmap which is constructed as follows
Paint a rectangle color yellow I want now to paint a smaller circle over the top of the rectangle, but i want to use transparency. so that the circle results as a hole in the rectangle. {like swiss cheese with holes }
So if i painted the bitmap over a background the background would still be visible in the Circle/hole.
setting the drawcolor drawColor(Color.TRANSPARENT) just paints a transparent object. i.e. it doesn't erase the circle area of the rectangle.
How to do...?
One option is to set the circle color to say black and then look for an option to replace black with transparent within the bitmap.... but i can't find a solution for this either.
I'm trying to develop an RPG for Android, so I need to paint a scenario where I'll move my character.
My idea is to do it 2D. I've developed 3D games and Java games for desktop, but in Android i don't get how to star the scenario.
Could it be developed with a matrix of information, so I could know where my character steps?
I'm designing a custom view which is an X/Y Plot. It's a moving graph that scrolls to the left with time and new Y values are continuously coming in at 10 per second.
I've been able to make it work with an array of integers where the array index is the X value and the integer value is the Y value, but this seems horribly inefficient (Because every time it comes time to re-paint, I have to loop 800+ times to paint the graph). Then we do it all again 10 times a second. yuck.
Can anybody think of a paintable object that I can draw points to and perform some kind of scroll transformation and then just draw the new points each time, rather than the whole canvas?
Any other ideas out there?
The issue I am experiencing is that the SurfaceView I am using flickers. Once in a while, the objects I draw flicker and they change their size or colour.
It looks like that sometimes the application skips my calls to 'Paint.setColor()' and the one to 'Paint.setStrokeWidth()'.
I have made methods which change the used paint and then, in order to try to fix this issue, to set it back to the default paint values. Still the issue persists. I have also read that the problem might be due to the double buffering. Is it the case? I am using this code for the DrawingThread:
I also tried to use a dirty Rectangle to try to see if the issue can be fixed, but still nothing. [I might not have understood what it actually does.
Code:
class DrawingThread extends Thread {
private SurfaceHolder _surfaceHolder;
private CustomView _cv;
private boolean _run = false;
[Code] .....
I have read somewhere I should draw on a single bitmap and then draw the bitmap on the canvas. I have tried several times but I cannot manage to do so.
I'm developing a coloring book app, how do I ensure that the black outlines of my drawing are not colored by the paint brush? I thought of decreasing the alpha value of the paint brush to show the black outlines when painting over them but upon painting the same area again, the black outlines will be painted over.
View 2 Replies View RelatedI'm using the FontFitTextView that was posted in this other thread, but it isn't working exactly right for me. The measureText() call is returning a number that is obviously too small to display the string. When it runs through to find a font size that will allow the text to fit, the font size it settles on is still too big. I feel like there is some other kind of padding or margin or some other invisible that is contributing the math that makes up the width which is causing the discrepancy.For example I want to set the text of my FontFitTextView to be "10,000.25".The width of my FontFitTextView is 96 pixels, with 8px padding on both sides, so my available width is 80 pixels. The call to measureText() says that the text "10,000.25" is 64 pixels wide. This means that the current font size should be small enough to display the entire string. However, when the string is actually drawn on the TextView the last 2 characters are chopped off and all I see is "10,000." instead of "10,000.25"
View 1 Replies View RelatedAnyone else notice the black paint,on the earpiece, starting to wear off?
View 49 Replies View RelatedSomehow the gold paint has flecked off of my camera button.Anyone deal with this?Any good solutions?I was thinking gold nail polish.
View 7 Replies View RelatedThe red paint on the earpiece of my DINC is rubbing off, ever so slightly.Anyone else experience this?
View 9 Replies View RelatedI've had the phone only since Tuesday, and I just noticed a dent in the paint, if that's the correct description, near the bottom right corner (an inch below the Search button, slightly to the right). It looks as if someone pushed their finger nail into the paint really hard. It's the same height as the letter G in "SAMSUNG" printed under the screen.
The phone was dropped by a child on the car mat once before, but I don't think that's what caused it.Any ideas on how to fix it, or if I can get it replaced? (I got it from letstalk.com for free with contract).
There seams to be a widespread problem of the gold coated camera button flaking and or wearing over time. The top of my camera button is completely white and looks awful.Other then this,I have no complaints about the phone.Don't feel like dealing with VZ or Moto and getting a new phone for something so small.Has anyone painted the camera button?If so what kind did you use and how does it look?
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