android-canvas

EDIT: The real problem was that my LinearLayout was wrapped in another layout, which caused the incorrect behavior. The accepted answer by Sanvywell has a better, more complete example of how to draw a color under swiped view than the code snippet I provided in the question. Now that RecyclerView widget has native support for row swiping with the help of ItemTouchHelper class, I'm attempting to use it in an app where rows will behave similarly to Google's Inbox app. That is, swiping to the left side performs one action and swiping to the right does another. Implementing the actions themselves

I'm trying to add some red rectangles within my existing canvas on top of specific boxes exactly like the expected result image but they don't appear at all as my code shows the current undesired outcome when I deploy my app. My code is to create 4 rectangles on the top row and 4 rectangles on the bottom row but I only want this to be added on top of boxes 2-6 but I know extra code needs to be added for the red rectangles on top of boxes 1 & 7. Does anyone know what I'm doing wrong and how to fix this? All help would be appreciated. public class RectangleTextView extends View { private final

I have the following CustomView I am using for painting in my app: package com.test.testing; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Path; import android.graphics.Paint.Style; import android.view.MotionEvent; import android.widget.TextView; public class CustomView extends TextView { Paint paint; Path path; float x = 0; float y = 0; private int cWhite = Color.WHITE; public CustomView(Context context) { super(context); paint = new Paint(); path= new Path(); paint.setAlpha(255); paint

I'm new to android programming and what I'm trying to figure out is this; In my layout i have a TextView, ImageView, and Button, all on a vertically oriented LinearLayout. I want to be able to dynamically draw circles in the ImageView, without disturbing the rest of my layout(textview/button). I'm trying to create a canvas, and use the drawcircle function within canvas to set the location of the circle. And then draw that canvas to my imageview in some way. I cannot get this to work, is there a trick to this? Or is my method fundamentally wrong? How would i go about drawing circles to the

I Have Some static images like below: Now, I want is, when i touch on the face or hand, then the selected color should be fill on that skin portion. See below image of result: So how to get the result like above ?? Redo and Undo Functionality Should be also there. I have try with the FloodFill color but doing that i can only able to do color in to the perticular portion. as FloodFill only fill the color till the same pixwl color comes. If the touch place pixel color get change the it will not fill color on it. So Usinf FloodFill i got the result like below image, If i press on the hand, then