How can one save drawing on canvas in android, so that it could be restored at some point in future? For example, I save current drawing on canvas, then draw something else, and after that restore canvas to the previous saved state.
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How can one save drawing on canvas in android, so that it could be restored at some point in future? For example, I save current drawing on canvas, then draw something else, and after that restore canvas to the previous saved state.
You have to store the model data separately. In draw method you only define how to draw this data. Depending on the situation you can set a flag and in draw, draw the appropriate model.
You also can save the canvas as a file / bitmap, see for example this: Image on canvas to JPEG file