android-canvas

I develop android library for drawing chart at view, using canvas. However, the following errors occur frequently. LogCat: D/NvOsDebugPrintf(11526): NvRmChannelSubmit: NvError_IoctlFailed with error code 12 D/NvOsDebugPrintf(11526): NvRmChannelSubmit failed (err = 196623, SyncPointValue = 94008102) (87 times repeat) D/OpenGLRenderer(11526): GL error from OpenGLRenderer: 0x505 E/OpenGLRenderer(11526): OpenGLRenderer is out of memory! Solution is not found although I am groping for various causes and solution. So, please tell me about what can become a cause which such an error generates? And

I am trying to implement a Drawing Application in Android. Where the user should be able to select and move the drawn shapes. Currently i have statically drawn some rects and text on my Drawing Canvas: View mDrawingCanvas = new View(mContext) { ShapeDrawable rectangle; @Override public boolean isFocused() { // TODO Auto-generated method stub Log.d(TAG, "View's On focused is called !"); return super.isFocused(); } @Override public boolean onTouchEvent(MotionEvent event) { // TODO Auto-generated method stub return super.onTouchEvent(event); } @Override protected void onDraw(final Canvas canvas)

So basically i want to use a xml layout, but i also want a canvas where i can have graphics performed. What i did was make a view in my xml layout as you can see below. Then in my application i made the view draw the canvas, but it is not working. I'm not sure if my method for solving this is completely wrong or what. So please just take a look at my code and tell me if you see a quick fix or if you have a better method. Thanks in advance I really appreciate it. <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width=

I need capture the mark to draw a figure on canvas in Android, and the effect just like the follow gif: Well, as far, I can draw a side with constant velocity by ValueAnimator . However, I just only can draw one side at one time, because I can't save the last side when drawing the next side. So, is there a good way to solve the problem? Code for draw a line slowly by ValueAnimator： GraphicsView.java public class GraphicsView extends View { private int stepX, stepY = 0; private int startX, startY, stopX, stopY = 0; private Paint paint = null; public GraphicsView(Context context) { super(context

I have a view inflated, I can draw it on canvas, but can't seem to position it properly. LayoutInflater li = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = li.inflate(R.layout.fix_this_recommendation, null); v.measure(MeasureSpec.getSize(v.getMeasuredWidth()), MeasureSpec.getSize(v.getMeasuredHeight())); v.layout(400, 400, 400, 400); v.draw(canvas); But the view is always at the top left corner. Anyone know why? Each View draws its contents within its own coordinate system, with (0, 0) at the top-left. If you want it to appear elsewhere, you can set a new

I am making a drawing app for android and I need some help adding a fill tool. I want the tool to flood fill, and to behave like it would in Microsoft Paint, but on a phone. I have a custom view that draws a path on a canvas. I draw different paths for different pens and brushes, and I allow users to pick line thickness and color. When I do: paint.setStyle(Paint.Style.FILL); and I paint, I don't get a fill how I want. I have gotten some suggestions to use the "Flood Fill Algorithm", but I can't figure out how to implement it in my code. Where could I go to see an example of what I am trying to

I have an android app where the user paints, moves and reshapes some objects over a photo. In this page my screen layout consists of the photo that is loaded and below it (in portrait view) some buttons. My view looks exactly as I want it with the xml below: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:id="@+id/linear" > <LinearLayout android:id="@+id/buttons" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation=

All I want rotate image in particular angle as like below image. I have code for rotation but it rotate 360 degree but I want it only for particular degrees and get the selected number which is upper side of dial. below is my code. My custom View this work fine but lake of perfomance. import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.PointF; import android.graphics.Rect; import android.util.AttributeSet; import android.util.Log; import android.view