How can I set the bitmap as a background for DrawView? Suppose I drew something, saved somewhere bitmap or file. I transferred this file to another device and I want to continue drawing my drawing. If I could install a background from a bitmap or file, this would solve the problem, but at the moment it can only be installed from resources.

Read Bitmap from a file and load it to FreeDrawView.

Hi,

Is it possible to have a transparent background?
I want to put a TextView below the PaintView.

Thank you.

Could we perhaps make FreeDrawView an ImageView?
This could be useful when drawing on pictures.
I have tried making FreeDrawView extend ImageView rather than simple view but then setImageBitmap method of ImageView did not work - the background would not change.

Without calling setOnPathDrawnListener() on the FreeDrawView, I get an error:

java.lang.NullPointerException: Attempt to invoke interface method 'void com.rm.freedrawview.PathDrawnListener.onPathStart()' on a null object reference

Once I call the method, even while leaving the callbacks empty, everything is fine.

To be able to edit an old drawing.

How can we detect if the user has stopped drawing?

Hello RiccardoMoro!

FreeDrawSerializableState#getCurrentViewStateAsSerializable()

returns

new FreeDrawSerializableState(mCanceledPaths, mPaths, getPaintColor(),
                getPaintAlpha(), getPaintWidth(), getResizeBehaviour(),
                mLastDimensionW, mLastDimensionH);

with mCanceledPaths, mPaths as pointers to respective arraylists, such that changes are represented both on the original and the copy.
If thats not intended behaviour, i would suggest returning hard copies.

Thanks for the hard work! Much love.
Huy

If you want to disable/enable draw mode do something like this:

void disableDrawMode(){
			mFreeDrawView.setFocusableInTouchMode(false);

			mFreeDrawView.setFocusable(false);

			mFreeDrawView.setClickable(false);

			mFreeDrawView.setEnabled(false);
		}
		void enableDrawMode(){
			mFreeDrawView.setFocusableInTouchMode(true);

			mFreeDrawView.setFocusable(true);

			mFreeDrawView.setClickable(true);

			mFreeDrawView.setEnabled(true);
		}

Thanks for this Awesome Work !
I found this two Listeners not working as it has to be !
removePathDrawnListener and setPathRedoUndoCountChangeListener either setting it null manually not making any change.

mFreeDrawView.setOnPathDrawnListener(null);
mFreeDrawView.setPathRedoUndoCountChangeListener(null);

i want to stop drawing when user done with it on button click event.
any ways to do it ?

This library is very useful hopefully you can include a shader so you can paint image tiles from a bitmap into the FreeDrawView. Like the example below.

val shader = BitmapShader(resource,Shader.TileMode.REPEAT,Shader.TileMode.REPEAT)
FreeDrawView.paint.setShader(shader)

is there any way to get bitmap of this FreeDrawView
as this listener is also always giving error
mSignatureView.getDrawScreenshot(new FreeDrawView.DrawCreatorListener() { @Override public void onDrawCreated(Bitmap draw) { // The draw Bitmap is the drawn content of the View } @Override public void onDrawCreationError() { // Something went wrong creating the bitmap, should never // happen unless the async task has been canceled } });

When i use getDrawScreenshot() method, i get this error "width and height must be > 0" in here

FreeDrawView.java:743

try {
mBitmap = Bitmap.createBitmap(
mWidth, mHeight, Bitmap.Config.ARGB_8888);
mCanvas = new Canvas(mBitmap);
} catch (Exception e) {
e.printStackTrace();
cancel(true);
}

        return null;

can you help me?

I want to get the path points of lines (ex: [1,1],[2,2],[8,7]....).
It seems Lib doesn't have function like that.
I try to set setOnTouchListener to canvas.
It can return the path point, but canvas can't draw anymore.

If there any suggestion for this situation?

I solved this issue by create a new class extent Lib, and modified the onTouch fucntion.

Hi, it is nice job. but wanna to know whether support eraser? If not, i feel free to implement it.