[JAVA] Android Easily give a "press" to a button

How to easily give the feeling of pressing an Image button or button on Android

Create the following two Java classes and add them to your project.

Please edit the "*****" part

`PushButton.java`


package *****package name*****;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.Button;

/***Effect button to push***/
public class PushButton extends Button {
    public PushButton(Context context) {
        super(context);
    }

    public PushButton(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public void setPressed(boolean pressed) {
        if(pressed){
            this.setScaleY(0.92f);
            this.setScaleX(0.96f);
        }else{
            this.setScaleY(1.0f);
            this.setScaleX(1.0f);
        }
        super.setPressed(pressed);
    }

}

`AlphaButton.java`


package *****package name*****;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.Button;

/***Semi-transparent effect button***/
public class AlphaButton extends Button {
    public AlphaButton(Context context) {
        super(context);
    }

    public AlphaButton(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public void setPressed(boolean pressed) {
        if(pressed){
            this.setAlpha(0.75f);
        }else{
            this.setAlpha(1.0f);
        }
        super.setPressed(pressed);
    }

}

After that, place a custom button instead of "Button" in the layout XML ・ Layout example

Please edit the "*****" part

`layout.xml`


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/mainframe"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#000000">

    <!---Button that shrinks when pressed-->
    <*****package name*****.PushButton
        android:id="@+id/button_sample01"
        android:layout_width="200dp"
        android:layout_height="60dp"
        android:background="@drawable/button_sample"
        />

    <!---Semi-transparent button when pressed-->
    <*****package name*****.AlphaButton
        android:id="@+id/button_sample02"
        android:layout_width="200dp"
        android:layout_height="60dp"
        android:background="@drawable/button_sample"
        />
</LinearLayout>

that's all