drawMultipleLines

A library to draw multiple lines with desired line color and size on canvas just move your finger a line will follow your finger path.

-> set line size type:Foat
-> set line color type:Color

Installation

Step 1.

Add the JitPack repository to your build file Add it in your root build.gradle at the end of repositories:

allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
  }
}

Step 2.

Add the dependency

dependencies {
implementation 'com.github.AkmalAfzal07:drawMultipleLines:0.1.0'
}

Usage

Add DrawingLineView in your your layout lineColor attribute to change color of line lineWidth attribute to change size of line

<com.example.drawmultiplelines.DrawingLineView
        android:layout_width="match_parent"
         android:id="@+id/customeView"
        android:layout_height="0dp"
        app:lineColor="#FF0000"
        app:lineWidth="10.0"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toTopOf="@+id/undo_btn"
        />
    <Button
        android:id="@+id/undo_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="undo"
        android:layout_marginBottom="20dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toStartOf="@+id/redo_btn"
        />
    <Button
        android:id="@+id/redo_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="redo"
        app:layout_constraintTop_toTopOf="@+id/undo_btn"
        app:layout_constraintBottom_toBottomOf="@+id/undo_btn"
        app:layout_constraintStart_toEndOf="@+id/undo_btn"
        app:layout_constraintEnd_toEndOf="parent"
        />

Or from code like

private var customDrawing: DrawingLineView? = null 
customDrawing = findViewById(R.id.customeView) 
customDrawing?.setLineColor(resources.getColor(R.color.gray_paint))
customDrawing?.setLineWidth(40F)

To undo and redo lines

// To remove a line

 findViewById<Button>(R.id.undo_btn).setOnClickListener { 
            
          customDrawing?.undo()
    }

// To retreive a removed line

findViewById<Button>(R.id.redo_btn).setOnClickListener { 
           
         customDrawing?.redo()
   }

Screen shots

I use this in another project as i show below

Good Luck !

GitHub

View Github