Seek bar progress Drawable Expand

Question

hi I want to make Custom Seek Bar which look like this

and this shape what appear on Android Studio

but when it run on Phone it look like this

and here is My code

in XML

<LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <SeekBar
            android:id="@+id/seekBar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:max="10000"
            android:progress="500"
            android:progressDrawable="@drawable/custom_seekbar"
            android:thumb="@drawable/thumb_transperent"
            />
    </LinearLayout>

where @drawable/custom_seekbar

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

    <!-- Define the background properties like color etc -->

    <item android:id="@android:id/background">
        <rotate>
            <layer-list>
                <item android:drawable="@drawable/progress_bar"/>
            </layer-list>
        </rotate>
    </item>

    <!-- Define the progress properties like start color, end color etc -->
    <item android:id="@android:id/progress">
        <clip>
            <layer-list>
                <item android:drawable="@drawable/progressbar_progress"/>
            </layer-list>
            </clip>
    </item>
</layer-list>

and @drawable/progress_bar

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:top="15dp">
        <shape android:shape="line">
            <stroke android:color="@color/black"
                android:width="5dp"/>
            <solid android:color="@android:color/transparent" />
        </shape>
    </item>

    <item
        android:bottom="25dp"
        android:left="0dp"
        android:right="100dp"
        android:gravity="left"

        android:drawable="@drawable/test_small">

    </item>
    <item
        android:left="50dp"
        android:right="50dp"
        android:bottom="25dp"
        android:gravity="center"

        android:drawable="@drawable/test_meduim">

    </item>
    <item
        android:left="100dp"
        android:bottom="25dp"
        android:gravity="right"
        android:drawable="@drawable/test_large">

    </item>
</layer-list>

and progressbar_progress

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:top="15dp">
        <shape android:shape="line">

            <solid android:color="@android:color/transparent" />
            <stroke android:color="@color/red" android:width="3dp"/>
        </shape>
    </item>

    <item
        android:bottom="25dp"
        android:gravity="left"
        android:width="19dp"
        android:height="19dp"
        android:drawable="@drawable/test_small">

    </item>

    <item
        android:gravity="center"
        android:right="12dp"
        android:bottom="25dp"
        android:width="19dp"
        android:height="19dp"
        android:drawable="@drawable/test_meduim">

    </item>
    <item
        android:bottom="25dp"
        android:gravity="right"
        android:width="19dp"
        android:height="19dp"
        android:drawable="@drawable/test_large">

    </item>
</layer-list>

can Any one fix this or tell me what`s wrong cuase I have tried Alot of thing and didnt work and thnak you

Answer 1

The images are scaled (the width and height attributes were added in API 23). To avoid this you can include a <bitmap/> element.

e.g. replace :

<item
    android:width="19dp"
    android:height="19dp"
    android:bottom="25dp"
    android:drawable="@drawable/test_small"
    android:gravity="left">

</item>

with :

<item
    android:bottom="25dp">
    <bitmap
        android:gravity="left"
        android:src="@drawable/test_small" />
</item>

Notice that the gravity attribute is on the bitmap element. The trick is explained here :

All drawable items are scaled to fit the size of the containing View, by default. Thus, placing your images in a layer list at different positions might increase the size of the View and some images scale as appropriate. To avoid scaling items in the list, use a <bitmap> element inside the element to specify the drawable and define the gravity to something that does not scale, such as "center".