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Gradient buttons for android

Blue button
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" >
        <shape>
        	<solid
        		android:color="#449def" />
            <stroke
                android:width="1dp"
                android:color="#2f6699" />
            <corners
                android:radius="3dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
    <item>
        <shape>
            <gradient
                android:startColor="#449def"
                android:endColor="#2f6699"
                android:angle="270" />
            <stroke
                android:width="1dp"
                android:color="#2f6699" />
            <corners
                android:radius="4dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
</selector>
Red button
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" >
        <shape>
        	<solid
        		android:color="#ef4444" />
            <stroke
                android:width="1dp"
                android:color="#992f2f" />
            <corners
                android:radius="3dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
    <item>
        <shape>
            <gradient
                android:startColor="#ef4444"
                android:endColor="#992f2f"
                android:angle="270" />
            <stroke
                android:width="1dp"
                android:color="#992f2f" />
            <corners
                android:radius="3dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
</selector>
Purple button
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" >
        <shape>
        	<solid
        		android:color="#a276eb" />
            <stroke
                android:width="1dp"
                android:color="#6a3ab2" />
            <corners
                android:radius="3dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
    <item>
        <shape>
            <gradient
                android:startColor="#a276eb"
                android:endColor="#6a3ab2"
                android:angle="270" />
            <stroke
                android:width="1dp"
                android:color="#6a3ab2" />
            <corners
                android:radius="4dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
</selector>
Green button
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" >
        <shape>
        	<solid
        		android:color="#70c656" />
            <stroke
                android:width="1dp"
                android:color="#53933f" />
            <corners
                android:radius="3dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
    <item>
        <shape>
            <gradient
                android:startColor="#70c656"
                android:endColor="#53933f"
                android:angle="270" />
            <stroke
                android:width="1dp"
                android:color="#53933f" />
            <corners
                android:radius="4dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
</selector>
Yellowbutton
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" >
        <shape>
        	<solid
        		android:color="#f3ae1b" />
            <stroke
                android:width="1dp"
                android:color="#bb6008" />
            <corners
                android:radius="3dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
    <item>
        <shape>
            <gradient
                android:startColor="#f3ae1b"
                android:endColor="#bb6008"
                android:angle="270" />
            <stroke
                android:width="1dp"
                android:color="#bb6008" />
            <corners
                android:radius="4dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
</selector>
Blackbutton
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" >
        <shape>
        	<solid
        		android:color="#343434" />
            <stroke
                android:width="1dp"
                android:color="#171717" />
            <corners
                android:radius="3dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
    <item>
        <shape>
            <gradient
                android:startColor="#343434"
                android:endColor="#171717"
                android:angle="270" />
            <stroke
                android:width="1dp"
                android:color="#171717" />
            <corners
                android:radius="4dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
</selector>
All text on the buttons will have the same styleso we can define a style in strings.xml:

<style name="ButtonText">
    <item name="android:layout_width">fill_parent</item>
    <item name="android:layout_height">wrap_content</item>
    <item name="android:textColor">#ffffff</item>
    <item name="android:gravity">center</item>
    <item name="android:layout_margin">3dp</item>
    <item name="android:textSize">30dp</item>
    <item name="android:textStyle">bold</item>
    <item name="android:shadowColor">#000000</item>
    <item name="android:shadowDx">1</item>
    <item name="android:shadowDy">1</item>
    <item name="android:shadowRadius">2</item>
</style>
Together you’ll have a nice collection of nice buttons:
Source code of an activity layout:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"
	android:orientation="vertical">
   <Button android:text="Button" android:id="@+id/button1" android:background="@drawable/btn_red" style="@style/ButtonText"></Button>
   <Button android:text="Button" android:id="@+id/button2" android:background="@drawable/btn_blue" style="@style/ButtonText"></Button>
   <Button android:text="Button" android:id="@+id/button3" android:background="@drawable/btn_purple" style="@style/ButtonText"></Button>
   <Button android:text="Button" android:id="@+id/button4" android:background="@drawable/btn_green" style="@style/ButtonText"></Button>
   <Button android:text="Button" android:id="@+id/button5" android:background="@drawable/btn_orange" style="@style/ButtonText"></Button>
   <Button android:text="Button" android:id="@+id/button6" android:background="@drawable/btn_black" style="@style/ButtonText"></Button>
</LinearLayout>