Visual effect when clicking the button disappears when I assign a background

Question

I’m trying to make a simple button on an Android app. When inserting the button the effects worked normally, but after performing the background color change, the effect when clicking the button is gone, getting static.

I wonder which property I use to solve this.

My button is implemented as follows:

<Button
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="TEST"
    android:background="#2780E3"
    android:textColor="@android:color/white"
/>

Answer 1

In that case you need to create a selector for your button, a new style, for example.

only in your drawable folder right click, go in new select xml the name you choose in this case selector_button.xml

/res/drawable/selector_button.xml

.

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">


    <item android:drawable="@android:color/holo_blue_bright" android:state_selected="true"></item>
    <item android:drawable="@android:color/holo_blue_dark" android:state_pressed="true"></item>
    <item android:drawable="@android:color/holo_blue_light"></item>


</selector>

Remember to put different colors to give the effect.

And on your button you say this selector in the backgroud

<Button
            android:id="@+id/btn1"
            android:background="@drawable/selector_button"
/>

The color codes you get here http://html-color-codes.info/Codigos-de-Cores-HTML/ http://www.ufpa.br/dicas/htm/htm-cor2.htm