RasmView is an Android drawing library it delivers a check out that lets buyers to draw on prime of a bitmap.
Demo
https://www.youtube.com/view?v=8qYhwjleT_8
Capabilities
- 8 previously defined brushes, and you can determine your individual.
- Drawing on best of illustrations or photos.
- Undo/redo operations.
- Zooming in/out, rotation & translation.
- Tailor made qualifications colour.
Obtain
Gradle:
dependencies
implementation 'com.raedapps:rasmview:1.2.'
Maven:
<dependency>
<groupId>com.raedappsgroupId>
<artifactId>rasmviewartifactId>
<version>1.2.version>
dependency>
Usage Guidebook
Increase the adhering to to your structure file:
RasmContext
RasmContext lets you to control the brush configuration, undo/redo, reset transformation, and far more. RasmContext can be accessed from RasmView:
val rasmView = findViewById<RasmView>(R.id.rasmView)
val rasmContext = rasmView.rasmContext
Altering the brush
You can use the BrushesRepository to get an now outlined brush.
val brushesRepository = BrushesRepository(resources)
rasmContext.brushConfig = brushesRepository.get(Brush.Marker)
The pursuing brushes are already described:
enum class Brush
Pencil,
Pen,
Calligraphy,
AirBrush,
Marker,
HardEraser,
SoftEraser,
Brush shade
Here is how to change the brush coloration:
rasmContext.brushColor = Coloration.Pink
rasmContext.brushColor = 0xff2187bb.toInt() //ARGB
The alpha channel worth is ignored, you can handle alpha by setting brushConfig.stream.
Brush size and other configurations
val brushConfig = rasmContext.brushConfig
brushConfig.size = .5f
brushConfig.movement = .25f
brushConfig.isEraser = real
Tailor made brushes
val myStampBitmap = ...
val customBrushConfig = BrushConfig()
customBrushConfig.stamp = BrushStamp.BitmapStamp(myStampBitmap)
customBrushConfig.dimensions = .25f
customBrushConfig.spacing = .1f
rasmContext.brushConfig = customBrushConfig
Drawing on a bitmap (your very own graphic).
val imageBitmap = ... //load your bitmap regardless of whether from a URI or means
rasmContext.setRasm(imageBitmap)
rasmView.resetTransformation()
Acquiring the drawing
val drawingBitmap = rasmContext.exportRasm()
Background shade
rasmContext.setBackgroundColor(Shade.BLACK)
Undo/redo
val rasmState = rasmContext.state
rasmState.undo()
rasmState.redo()
But you do not want to retain your buttons enabled when an undo/redo is not feasible, you can pay attention to point out updates:
undoButton.setOnClickListener
rasmState.undo()
redoButton.setOnClickListener
rasmState.redo()
rasmState.addOnStateChangedListener
undoButton.isEnabled = rasmState.canCallUndo()
redoButton.isEnabled = rasmState.canCallRedo()
undoButton.isEnabled = rasmState.canCallUndo()
redoButton.isEnabled = rasmState.canCallRedo()
Clearing the drawing
Enabling rotation
rasmContext.rotationEnabled = legitimate
Resetting the transformation
rasmView.resetTransformation()
If you identified a bug, make sure you open an challenge.
License
Copyright 2022 Raed Mughaus
Licensed below the Apache License, Variation 2. (the "License")
you could not use this file besides in compliance with the License.
You may perhaps attain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.
Unless of course demanded by relevant legislation or agreed to in crafting, computer software
dispersed beneath the License is distributed on an "AS IS" Basis,
Without WARRANTIES OR Problems OF ANY Sort, both specific or implied.
See the License for the particular language governing permissions and
constraints below the License.
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