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name Punditsdkoslkdosdkoskdo

Android - How to change default SeekBar thickness?

I have this SeekBar:

        <SeekBar
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="26dp"
        android:id="@+id/seekbar"
        android:visibility="gone"
        android:maxHeight="3dp"/>

I have tried to change this SeekBar thickness using maxHeight. But nothing changed. It looks like this:

enter image description here

I want to change this SeekBar's thickness to 3dp and make look like this: enter image description here

So my question is it possible to change SeekBar thickness somehow? If yes, how?

You have to change progressDrawable and thumb of SeekBar to adjust it's thickness :

<SeekBar
    android:id="@+id/seekBar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@id/indSeekBar"
    android:layout_marginTop="48dp"
    android:progressDrawable="@drawable/seek_bar"
    android:thumb="@drawable/seek_thumb"
    />

Add in drawable folder seek_bar.xml :

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@android:id/background">
        <shape
            android:shape="line">
            <stroke
                android:color="@color/seek_bar_background"
                android:width="@dimen/seek_bar_thickness"/>
        </shape>
    </item>

    <item android:id="@android:id/progress">
        <clip>
            <shape
                android:shape="line">
                <stroke
                    android:color="@color/seek_bar_progress"
                    android:width="@dimen/seek_bar_thickness"/>
            </shape>
        </clip>
    </item>

    <item android:id="@android:id/secondaryProgress">
        <clip>
            <shape
                android:shape="line">
                <stroke
                    android:color="@color/seek_bar_secondary_progress"
                    android:width="@dimen/seek_bar_thickness"/>
            </shape>
        </clip>
    </item>
</layer-list>

seek_thumb.xml :

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">
    <size
        android:height="@dimen/seek_bar_thumb_size"
        android:width="@dimen/seek_bar_thumb_size"
        />
    <solid android:color="@color/seek_bar_progress"/>
</shape>

Add to dimension resources (change this to adjust thickness) :

<dimen name="seek_bar_thickness">4dp</dimen>
<dimen name="seek_bar_thumb_size">20dp</dimen>

Add color resources :

<color name="seek_bar_background">#ababab</color>
<color name="seek_bar_progress">#ffb600</color>
<color name="seek_bar_secondary_progress">#3399CC</color>

enter image description here

  • 46
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      • 2
    • Could you explain how to "add to dimension resources"? I see "drawable", "layout", and "values" in my res folder in Android Studio, but no "dimension"
      • 2
    • @stevendesu create file dimens.xml in values resource folder, technically you can declare any string, color, dimension resources in any XML file in values folder enclosed in tag

You should do like this:

<SeekBar
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="20dp"
    android:thumb="@drawable/seek"
    android:progressDrawable="@drawable/seek_style"
    />

The thumb is the circle which can be dragged, and the progressDrasable is the style of progress.

seek_style.xml:

<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="#ff0099CC"
                    android:centerColor="#ff3399CC"
                    android:centerY="0.75"
                    android:endColor="#ff6699CC"
                    android:angle="270"
                    />
            </shape>
        </clip>
    </item>
</layer-list>

seek.xml:

<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval">
    <size
        android:width="20dp"
        android:height="20dp"
        />
    <solid android:color="#60f0"/>
</shape>
  • 14
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You can change the thickness of your seekbar using the attributes minHeight and maxHeight

android:minHeight="5dp"

android:maxHeight="5dp"

Here's how I'd do it in your xml:

<SeekBar
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="26dp"
    android:id="@+id/seekbar"
    android:visibility="gone"
    android:minHeight="5dp"
    android:maxHeight="5dp"/>
  • -5
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