很抱歉，这不是答案，但是是什么驱使需求从代码中设置它呢? 如果定义正确。setprogressdrawable应该工作

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

<item android:id="@android:id/background">
    <shape>
        <corners android:radius="5dip" />
        <gradient
                android:startColor="#ff9d9e9d"
                android:centerColor="#ff5a5d5a"
                android:centerY="0.75"
                android:endColor="#ff747674"
                android:angle="270"
        />
    </shape>
</item>

<item android:id="@android:id/secondaryProgress">
    <clip>
        <shape>
            <corners android:radius="5dip" />
            <gradient
                    android:startColor="#80ffd300"
                    android:centerColor="#80ffb600"
                    android:centerY="0.75"
                    android:endColor="#a0ffcb00"
                    android:angle="270"
            />
        </shape>
    </clip>
</item>

<item android:id="@android:id/progress">
    <clip>
        <shape>
            <corners
                android:radius="5dip" />
            <gradient
                android:startColor="@color/progress_start"
                android:endColor="@color/progress_end"
                android:angle="270" 
            />
        </shape>
    </clip>
</item>

</layer-list>

最简单的解决方案，如果你想改变布局xml文件的颜色，使用下面的代码和使用indeterminateTint属性为您想要的颜色。

    <ProgressBar
      android:id="@+id/progressBar"
      style="?android:attr/progressBarStyle"
      android:layout_width="wrap_content"
      android:indeterminate="true"
      android:indeterminateTintMode="src_atop"
      android:indeterminateTint="#ddbd4e"
      android:layout_height="wrap_content"
      android:layout_marginBottom="20dp"
      android:layout_alignParentBottom="true"
      android:layout_centerHorizontal="true" />

默认值(不确定)

add

android:indeterminateTint="@color/white"

为确定

    android:progressTint="@color/color_1"

    //OR
    progressBar.getProgressDrawable().setColorFilter( PorterDuffColorFilter(Color.RED,android.graphics.PorterDuff.Mode.SRC_IN));

在修改默认进度条的外观时遇到了同样的问题。这里有一些更多的信息，希望能帮助到人们:)

The name of the xml file must only contain characters: a-z0-9_. (ie. no capitals!) To reference your "drawable" it is R.drawable.filename To override the default look, you use myProgressBar.setProgressDrawable(...), however you need can't just refer to your custom layout as R.drawable.filename, you need to retrieve it as a Drawable:Resources res = getResources(); myProgressBar.setProgressDrawable(res.getDrawable(R.drawable.filename); You need to set style before setting progress/secondary progress/max (setting it afterwards for me resulted in an 'empty' progress bar)

在Xml中添加ProgressBar

适用于SDK 21及以上版本

android:indeterminateTint="@color/red"

很抱歉，这不是答案，但是是什么驱使需求从代码中设置它呢? 如果定义正确。setprogressdrawable应该工作

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

<item android:id="@android:id/background">
    <shape>
        <corners android:radius="5dip" />
        <gradient
                android:startColor="#ff9d9e9d"
                android:centerColor="#ff5a5d5a"
                android:centerY="0.75"
                android:endColor="#ff747674"
                android:angle="270"
        />
    </shape>
</item>

<item android:id="@android:id/secondaryProgress">
    <clip>
        <shape>
            <corners android:radius="5dip" />
            <gradient
                    android:startColor="#80ffd300"
                    android:centerColor="#80ffb600"
                    android:centerY="0.75"
                    android:endColor="#a0ffcb00"
                    android:angle="270"
            />
        </shape>
    </clip>
</item>

<item android:id="@android:id/progress">
    <clip>
        <shape>
            <corners
                android:radius="5dip" />
            <gradient
                android:startColor="@color/progress_start"
                android:endColor="@color/progress_end"
                android:angle="270" 
            />
        </shape>
    </clip>
</item>

</layer-list>