package com.xscm.moduleutil.widget;

import android.content.Context;
import android.graphics.LinearGradient;
import android.graphics.Shader;
import android.util.AttributeSet;
import androidx.appcompat.widget.AppCompatTextView;

/**
 * com.xscm.moduleutil.widget
 * qx 爵位中的文字渐变颜色
 * 2025/11/8
 */
public class GradientTextView extends AppCompatTextView {

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

    public GradientTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

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

    @Override
    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
        super.onLayout(changed, left, top, right, bottom);
        if (changed) {
            createGradient();
        }
    }

    private void createGradient() {
        // 获取TextView的宽度
        int width = getWidth();
        if (width > 0) {
            // 创建从左到右的线性渐变 #A292FF -> #FFFFFF -> #A292FF
            LinearGradient gradient = new LinearGradient(
                    0, 0, width, 0,
                    new int[]{0xFFA292FF, 0xFFFFFFFF, 0xFFA292FF},
                    new float[]{0f, 0.5f, 1f},
                    Shader.TileMode.CLAMP
            );
            getPaint().setShader(gradient);
            invalidate();
        }
    }
}