Text gradient android

Question

It is possible to create a gradient in the text (and not in the background) of a textView using only XML?

I know using Shader it is possible to do with code(here)

It is possible to do this using only XML?

Answer 1

It does not seem possible to create TextView with gradient text only using XML. However it is possible to achieve this effect by creating a canvas and drawing on it. It is necessary to declare our custom user interface element.

XML

<br.pacote.TextGradient
                android:id="@+id/txtVersao"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true"
                android:layout_alignRight="@+id/btnEntrar"
                android:gravity="right"
                android:textSize="40sp"
                android:text="GRADIENT" />

Textview Customizado

public class TextGradient extends TextView {

    public TextGradient(Context context, AttributeSet attrs) {
        super(context, attrs);
        // TODO Auto-generated constructor stub
    }

    public TextGradient(Context context) {
        super(context);
    }

    public TextGradient(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    public void setText(CharSequence text, BufferType type) {

        Shader shader = new LinearGradient(0, 0, 0, super.getTextSize(), Color.RED, Color.BLUE,
                Shader.TileMode.CLAMP);
        super.getPaint().setShader(shader);
        super.setText(text.toString(), type);
    }
}

Imagery

In this way, it is possible to use the TextGradient in the .xml.