在android中设置背景颜色时动画[重复]答案

【问题标题】：Animate while setBackgroundColor in android [duplicate]在android中设置背景颜色时动画[重复]
【发布时间】：2018-09-14 23:23:28
【问题描述】：

我正在开发自定义步进器。一切正常。

我现在要做的是在填充当前步骤时为步进器设置动画。

这张图片显示了我的想法：

这是我在设置线条、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，我想在每次从一个步骤移动到另一个步骤时为线条设置动画。

谢谢你:)

【问题讨论】：

标签： java android android-animation android-drawer stepper

【解决方案1】：

好吧，你可以让那条线成为progressBar并动画设置它的进度。

动画是这样完成的： Animate ProgressBar update in Android

或者您可以为视图背景设置动画，只需使用带有动画的可绘制对象，请查看此处： Animate change of view background color on Android

【讨论】：