How to achieve Android Button Animation with text-blurred and shadow

M.Hamza :

I want to achieve this button animation in Android. The sample below is from iOS. I want the shadow to disappear when the user clicks the button and reappear once the user releases the button.

Any help will be highly appreciated.

Reaz Murshed :

You need to add color like the following. For example, the color name is button_text_color.xml. Here is the .xml file which needs to be put in the color folder. If the color folder does not exist, create one in your res directory.

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="#50FFFFFF" android:state_pressed="true" />
    <item android:color="#FFFFFF" android:state_pressed="false" />
</selector>

Check that I have added 50% transparency to the white color in the pressed state. Now just add this attribute in the Button where it is declared.

Now you need a background drawable, to be put in your drawable folder. For example, let us take the name of the drawable is button_state_list_animator.xml. This should have the following content.

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="false">
        <layer-list>
            <item>
                <shape>
                    <solid android:color="@android:color/darker_gray" />
                    <corners android:radius="19dp" />
                </shape>
            </item>
            <item android:bottom="5px">
                <shape>
                    <padding android:bottom="5dp" />
                    <gradient android:angle="270" android:endColor="#163969" android:startColor="#1c4985" />
                    <corners android:radius="19dp" />
                    <padding android:bottom="10dp" android:left="10dp" android:right="5dp" android:top="10dp" />
                </shape>
            </item>
        </layer-list>
    </item>

    <item android:state_pressed="true">
        <layer-list>
            <item>
                <shape>
                    <solid android:color="#102746" />
                    <corners android:radius="19dp" />

                </shape>
            </item>
            <item android:bottom="5px">
                <shape>
                    <padding android:bottom="5dp" />
                    <gradient android:angle="270" android:endColor="#163969" android:startColor="#1c4985" />
                    <corners android:radius="19dp" />
                    <padding android:bottom="10dp" android:left="10dp" android:right="5dp" android:top="10dp" />
                </shape>
            </item>
        </layer-list>
    </item>
</selector>

Now your button construction is simple.

<Button
    android:id="@+id/button"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    android:layout_margin="32dp"
    android:background="@drawable/button_state_list_animator"
    android:text="Save Changes"
    android:textColor="@color/button_text_color" />

Here is the screenshot from my code.

You can have the push-down animation using the library as well, as mentioned in an answer here.

Hope that helps!