Snackbar is a UI element used for user feedback, just like a Toast except they provide action to interact with. Snackbar will be displayed at the bottom of the screen and can be swiped off in order to dismiss them.

Floating Button sits on the top of your layout and provides a way for a Quick Action.


We will jump quickly to the code.

Create activity_main.xml file and copy the below contents to it.

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    android:id="@+id/coordinatorLayout"
    tools:context="com.coderzheaven.snackbardemo.MainActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_main" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        android:src="@android:drawable/ic_dialog_email" />

</android.support.design.widget.CoordinatorLayout>

Create content_main.xml file and copy the below contents to it.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="com.coderzheaven.snackbardemo.MainActivity"
    tools:showIn="@layout/activity_main">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Welcome to CoderzHeaven, SnackBar Demo"
        android:textStyle="bold"
        android:textSize="25sp"
        android:textColor="@android:color/holo_red_dark"
        />
</RelativeLayout>

The MainActivity

package com.coderzheaven.snackbardemo;

import android.graphics.Color;
import android.os.Bundle;
import android.support.design.widget.CoordinatorLayout;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private CoordinatorLayout coordinatorLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        coordinatorLayout = (CoordinatorLayout) findViewById(R.id
                .coordinatorLayout);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Welcome to CoderzHeaven", Snackbar.LENGTH_LONG)
                        .setAction("Action", new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                //We will show another snackbar on the previous snackbar
                                //action click
                                Snackbar snackbar = Snackbar
                                        .make(coordinatorLayout, "Clicked On Action", Snackbar.LENGTH_LONG);

                                snackbar.show();

                                //customize it
                                // Changing message text color
                                snackbar.setActionTextColor(Color.RED);

                                // Changing action button text color
                                View sbView = snackbar.getView();
                                TextView textView = (TextView) sbView.findViewById(android.support.design.R.id.snackbar_text);
                                textView.setTextColor(Color.YELLOW);
                            }
                        }).show();
            }
        });

    }

}

You can download the complete Android Studio Source Code from here.

 

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