android studio 多彩回型靶盘代码

感谢您的提问！这是一个在Android Studio中实现多彩回型靶盘代码的示例：

import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;

public class BullseyeView extends View {

    private Paint paint;

    public BullseyeView(Context context) {
        super(context);
        paint = new Paint();
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);

        int width = getWidth();
        int height = getHeight();

        int centerX = width / 2;
        int centerY = height / 2;

        int maxRadius = Math.min(width, height) / 2;

        int numRings = 5;
        int ringWidth = maxRadius / numRings;

        for (int i = 0; i < numRings; i++) {
            int radius = maxRadius - i * ringWidth;            int colorIndex = i % 2 == 0 ? Color.WHITE : Color.BLACK;
            paint.setColor(colorIndex);
            canvas.drawCircle(centerX, centerY, radius, paint);
        }
    }
}

这个示例代码会在Android Studio中创建一个自定义View，绘制出多彩的回型靶盘效果。您可以根据需要调整圆环的数量和颜色。