在android中使用setBackgroundColor进行动画处理

Question

我正在研究自定义步进器。 一切都很好。

我现在要做的是在填充当前步骤时为步进器设置动画。

此图片显示了我的想法：

这是我设置线条，标题和图标src的颜色时的代码：

private void DrawStepper(int position) {
    switch (position) {

        case 0:
            imgStepShipper.setImageResource(R.drawable.ic_current_step);
            txtStepShipper.setTextColor(getResources().getColor(R.color.colorPrimary));
            line.setBackgroundColor(getResources().getColor(R.color.colorDarkWhite));

            imgStepConsignee.setImageResource(R.drawable.ic_unselected_step);
            txtStepConsignee.setTextColor(getResources().getColor(R.color.colorDarkSuperWhite));
            line2.setBackgroundColor(getResources().getColor(R.color.colorDarkWhite));

            imgStepShipment.setImageResource(R.drawable.ic_unselected_step);
            txtStepShipment.setTextColor(getResources().getColor(R.color.colorDarkSuperWhite));
            line3.setBackgroundColor(getResources().getColor(R.color.colorDarkWhite));

            imgStepCharges.setImageResource(R.drawable.ic_unselected_step);
            txtStepCharges.setTextColor(getResources().getColor(R.color.colorDarkSuperWhite));

            break;

        case 1:
            imgStepShipper.setImageResource(R.drawable.ic_done_step);
            txtStepShipper.setTextColor(getResources().getColor(R.color.colorPrimary));
            line.setBackgroundColor(getResources().getColor(R.color.colorPrimary));

            imgStepConsignee.setImageResource(R.drawable.ic_current_step);
            txtStepConsignee.setTextColor(getResources().getColor(R.color.colorPrimary));
            line2.setBackgroundColor(getResources().getColor(R.color.colorDarkWhite));

            imgStepShipment.setImageResource(R.drawable.ic_unselected_step);
            txtStepShipment.setTextColor(getResources().getColor(R.color.colorDarkSuperWhite));
            line3.setBackgroundColor(getResources().getColor(R.color.colorDarkWhite));

            imgStepCharges.setImageResource(R.drawable.ic_unselected_step);
            txtStepCharges.setTextColor(getResources().getColor(R.color.colorDarkSuperWhite));

            break;

        case 2:
            imgStepShipper.setImageResource(R.drawable.ic_done_step);
            txtStepShipper.setTextColor(getResources().getColor(R.color.colorPrimary));
            line.setBackgroundColor(getResources().getColor(R.color.colorPrimary));

            imgStepConsignee.setImageResource(R.drawable.ic_done_step);
            txtStepConsignee.setTextColor(getResources().getColor(R.color.colorPrimary));
            line2.setBackgroundColor(getResources().getColor(R.color.colorPrimary));

            imgStepShipment.setImageResource(R.drawable.ic_current_step);
            txtStepShipment.setTextColor(getResources().getColor(R.color.colorPrimary));
            line3.setBackgroundColor(getResources().getColor(R.color.colorDarkWhite));

            imgStepCharges.setImageResource(R.drawable.ic_unselected_step);
            txtStepCharges.setTextColor(getResources().getColor(R.color.colorDarkSuperWhite));

            break;

        case 3:
            imgStepShipper.setImageResource(R.drawable.ic_done_step);
            txtStepShipper.setTextColor(getResources().getColor(R.color.colorPrimary));
            line.setBackgroundColor(getResources().getColor(R.color.colorPrimary));

            imgStepConsignee.setImageResource(R.drawable.ic_done_step);
            txtStepConsignee.setTextColor(getResources().getColor(R.color.colorPrimary));
            line2.setBackgroundColor(getResources().getColor(R.color.colorPrimary));

            imgStepShipment.setImageResource(R.drawable.ic_done_step);
            txtStepShipment.setTextColor(getResources().getColor(R.color.colorPrimary));
            line3.setBackgroundColor(getResources().getColor(R.color.colorPrimary));

            imgStepCharges.setImageResource(R.drawable.ic_current_step);
            txtStepCharges.setTextColor(getResources().getColor(R.color.colorPrimary));
            break;
    }
}

位置是当前步骤。

这是我的用户界面：

正如我所说，我希望每次从一个步骤移动到另一个时为该线设置动画。

谢谢：）

Answer 1

好吧，你可以将该行设置为progressBar并设置动画来设置其进度。

这是动画的完成方式： Animate ProgressBar update in Android

或者您可以为视图背景设置动画，只需使用带动画的drawable，请点击此处： Animate change of view background color on Android