对track设置半透明颜色，会start和end颜色会被影响 about material-progressview HOT 1 CLOSED

        <ProgressBar
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginEnd="16dp"
            android:max="100"
            android:progress="45"
            android:progressDrawable="@drawable/curved_progress_bar" />

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@android:id/background">
        <shape>
            <corners android:radius="8dp" />
            <solid android:color="@color/progressbar_background_color_selector" />
        </shape>
    </item>

    <item
        android:id="@android:id/progress">

        <scale android:scaleWidth="100%">
            <shape>
                <corners android:radius="8dp" />
                <solid android:color="@color/review_filled_color" />
            </shape>
        </scale>
    </item>
</layer-list>