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>

水平ProgressBar使用矩形形状绘制背景，ClipDrawable从矩形形状构建的进展(主要和次要)。着色将颜色改变为某种色调。如果你想分别为这三种颜色设置目标颜色，你可以使用ProgressBar.setProgressDrawable()，如下所示:

    LayerDrawable progressBarDrawable = new LayerDrawable(
        new Drawable[]{
                new GradientDrawable(GradientDrawable.Orientation.TOP_BOTTOM,
                            new int[]{Color.parseColor("#ff0000ff"),Color.parseColor("#ff0000ff")}),

                new ClipDrawable(
                            new GradientDrawable(GradientDrawable.Orientation.TOP_BOTTOM,
                                    new int[]{Color.parseColor("#ff00ff00"),Color.parseColor("#ff00ff00")}),
                            Gravity.START,
                            ClipDrawable.HORIZONTAL),

                new ClipDrawable(
                        new GradientDrawable(GradientDrawable.Orientation.TOP_BOTTOM,
                                new int[]{Color.parseColor("#ffff0000"),Color.parseColor("#ffff0000")}),
                        Gravity.START,
                        ClipDrawable.HORIZONTAL)
            });

    progressBarDrawable.setId(0,android.R.id.background);
    progressBarDrawable.setId(1,android.R.id.secondaryProgress);
    progressBarDrawable.setId(2,android.R.id.progress);
    ((ProgressBar)findViewById(R.id.progressBar)).setProgressDrawable(progressBarDrawable);

注意，在初始化LayerDrawable时，可绘制层的顺序很重要。首先绘制的应该是背景。根据我的实验，切换id是行不通的。如果你将填充设置为progressbar，那么这种方法将不起作用。如果你需要填充，那么你可以使用一个容器的进度条，如线性布局。

下面是通过编程方式更改ProgressBar颜色的代码。

ProgressBar progressBar = (ProgressBar) findViewById(R.id.pb_listProgressBar);
int colorCodeDark = Color.parseColor("#F44336");
progressBar.setIndeterminateTintList(ColorStateList.valueOf(colorCodeDark));

还有一件小事，如果你继承了一个基础主题，主题解决方案也会起作用，所以对于应用紧凑，你的主题应该是:

<style name="AppTheme.Custom" parent="@style/Theme.AppCompat">
    <item name="colorAccent">@color/custom</item>
</style>

然后在进度条主题中设置这个

<ProgressBar
    android:id="@+id/progressCircle_progressBar"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_horizontal"
    android:theme="@style/AppTheme.Custom"
    android:indeterminate="true"/>

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>

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)