I would extract drawables and xml from Android source code and change its color to red.
Here is example how I completed this for mdpi drawables:
Custom red_scrubber_control.xml
(add to res/drawable):
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/red_scrubber_control_disabled_holo" android:state_enabled="false"/>
<item android:drawable="@drawable/red_scrubber_control_pressed_holo" android:state_pressed="true"/>
<item android:drawable="@drawable/red_scrubber_control_focused_holo" android:state_selected="true"/>
<item android:drawable="@drawable/red_scrubber_control_normal_holo"/>
</selector>
Custom: red_scrubber_progress.xml
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@android:id/background"
android:drawable="@drawable/red_scrubber_track_holo_light"/>
<item android:id="@android:id/secondaryProgress">
<scale
android:drawable="@drawable/red_scrubber_secondary_holo"
android:scaleWidth="100%" />
</item>
<item android:id="@android:id/progress">
<scale
android:drawable="@drawable/red_scrubber_primary_holo"
android:scaleWidth="100%" />
</item>
</layer-list>
Then copy required drawables from Android source code, I took from this link
It is good to copy these drawables for each hdpi, mdpi, xhdpi. For example I use only mdpi:
Then using Photoshop change color from blue to red:
red_scrubber_control_disabled_holo.png:
red_scrubber_control_focused_holo.png:
red_scrubber_control_normal_holo.png:
red_scrubber_control_pressed_holo.png:
red_scrubber_primary_holo.9.png:
red_scrubber_secondary_holo.9.png:
red_scrubber_track_holo_light.9.png:
Add SeekBar to layout:
<SeekBar
android:id="@+id/seekBar1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:progressDrawable="@drawable/red_scrubber_progress"
android:thumb="@drawable/red_scrubber_control" />
Result:
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…