android - 如何设置进度条背景

Question

我已经使用下面的代码设置了进度条样式。

我已经声明了进度条小部件:

 <ProgressBar
    android:id="@+id/loadProgress"
    style="?android:attr/progressBarStyleHorizontal"
    android:layout_width="match_parent"
    android:layout_height="20dip"
    android:max="100"
    android:progressDrawable="@drawable/load_progress"
    android:progress="0" />

定义了“@drawable/load_progress”

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >

<item
    android:id="@android:id/background"
    android:drawable="@drawable/background_bk">
</item>
<item
    android:id="@android:id/progress"
    android:drawable="@drawable/progress_bk">
</item>

</layer-list>

定义了“@drawable/background_bk”(它是红色的)

<?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >

<gradient
    android:angle="0"
    android:endColor="#ff0000"
    android:startColor="#ff0990" />

<stroke
    android:width="1dp"
    android:color="#ff0000" />

 </shape>

定义了@drawable/progress_bk(它是绿色的)

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >

<gradient
    android:angle="0"
    android:endColor="#00ff00"
    android:startColor="#00ff00" />

<stroke
    android:width="1dp"
    android:color="#00ff00" />

</shape>

即使我将进度值设置为小于 100，进度条始终完全显示为绿色(进度值为 100 时应显示的样子)。任何输入都将不胜感激。

Answer 1

为了让进度条显示为绿色且背景清晰，我做了以下操作:

android:background="@color/white"
android:progressBackgroundTint="@color/white"
android:progressTint="@color/green_light"