Argthtjtr

I have a Custom Class of TextView . I have implemented gradient attribute as the color of textview.
But i only managed to implement it in xml. I'm new to custom views. I don't know how can I add setStartColor , setEndColor in my custom TextView class.

values/attr

<declare-styleable name="GradientTextView">

    <attr name="startColor" format="color" />

    <attr name="endColor" format="color" />

</declare-styleable>

GradientTextView

public class GradientTextView extends AppCompatTextView {

    public GradientTextView(Context context) {

        super(context);



    }

    public GradientTextView(Context context, AttributeSet attrs) {

        super(context, attrs);

        TypedArray a=context.obtainStyledAttributes(attrs,R.styleable.GradientTextView);

        int startColor = a.getColor(R.styleable.GradientTextView_startColor, Color.WHITE);

        int endColor = a.getColor(R.styleable.GradientTextView_endColor, Color.WHITE);

        Shader myShader = new LinearGradient(0, 0, 0, 100,startColor, endColor, Shader.TileMode.CLAMP);

        this.getPaint().setShader(myShader);

        a.recycle();

    }  

}

XML

<mehran.design.GradientTextView

    android:id="@+id/title"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    app:startColor="@color/yellow"

    app:endColor="@color/blue"/>

Like this:

public class GradientTextView extends AppCompatTextView {

        public GradientTextView(Context context) {

            super(context);



        }

        public GradientTextView(Context context, AttributeSet attrs) {

            super(context, attrs);

            TypedArray a=context.obtainStyledAttributes(attrs,R.styleable.GradientTextView);

            int startColor = a.getColor(R.styleable.GradientTextView_startColor, Color.WHITE);

            int endColor = a.getColor(R.styleable.GradientTextView_endColor, Color.WHITE);

            Shader myShader = new LinearGradient(0, 0, 0, 100,startColor, endColor, Shader.TileMode.CLAMP);

            this.getPaint().setShader(myShader);

            a.recycle();

        }  



        public void setCustomColor(int startColor,int endColor){

            Shader myShader = new LinearGradient(0, 0, 0, 100,startColor, endColor, Shader.TileMode.CLAMP);

            this.getPaint().setShader(myShader);

            invalidate();

        }

    }

define variable startColor and endColor
and also setters for it

like

public void setStartColor(int color) {

    this.startColor= color;

    --- do your logic----

    invalidate();

}

Reference Link