Snackbar

1) Create MainActivity.java

package com.example.admin.snackbar;

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.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    private Toolbar mToolbar;
    private FloatingActionButton fab;
    private Button btnSimpleSnackbar, btnActionCallback, btnCustomView;
    private CoordinatorLayout coordinatorLayout;

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        coordinatorLayout = (CoordinatorLayout) findViewById(R.id.coordinatorLayout);
        mToolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(mToolbar);
        fab = (FloatingActionButton) findViewById(R.id.fab);
        btnSimpleSnackbar = (Button) findViewById(R.id.btnSimpleSnackbar);
        btnActionCallback = (Button) findViewById(R.id.btnActionCallback);
        btnCustomView = (Button) findViewById(R.id.btnCustomSnackbar);


        btnSimpleSnackbar.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View view) {
                Snackbar snackbar = Snackbar.make(coordinatorLayout, "Welcome to AndroidHive", Snackbar.LENGTH_LONG);
                View view1 = snackbar.getView();
                CoordinatorLayout.LayoutParams params = (CoordinatorLayout.LayoutParams)view.getLayoutParams();
                params.gravity = Gravity.TOP;
                view1.setLayoutParams(params);
                snackbar.show();
            }
        });

        btnActionCallback.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View view) {
                Snackbar snackbar = Snackbar
                        .make(coordinatorLayout, "Message is deleted", Snackbar.LENGTH_LONG)
                        .setAction("UNDO", new View.OnClickListener() {
                            @Override                            public void onClick(View view) {
                                Snackbar snackbar1 = Snackbar.make(coordinatorLayout, "Message is restored!", Snackbar.LENGTH_SHORT);
                                snackbar1.show();
                            }
                        });
                snackbar.show();
            }
        });

        btnCustomView.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View view) {
                Snackbar snackbar = Snackbar
                        .make(coordinatorLayout, "No internet connection!", Snackbar.LENGTH_LONG)
                        .setAction("RETRY", new View.OnClickListener() {
                            @Override                            public void onClick(View view) {

                            }
                        });
                snackbar.setActionTextColor(Color.RED);
                View sbView = snackbar.getView();
                TextView textView = (TextView) sbView.findViewById(android.support.design.R.id.snackbar_text);
                textView.setTextColor(Color.YELLOW);
                snackbar.show();
            }
        });
    }

    @Override    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

2)crete activity_main

<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:id="@+id/coordinatorLayout"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context=".MainActivity">

    <android.support.design.widget.AppBarLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar            android:id="@+id/toolbar"            android:layout_width="match_parent"            android:layout_height="?attr/actionBarSize"            android:background="?attr/colorPrimary"            app:layout_scrollFlags="scroll|enterAlways"            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
    </android.support.design.widget.AppBarLayout>

    <LinearLayout        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:orientation="vertical"        android:paddingLeft="20dp"        android:paddingRight="20dp"        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <Button            android:id="@+id/btnSimpleSnackbar"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_marginTop="30dp"            android:text="Simple Snackbar" />

        <Button            android:id="@+id/btnActionCallback"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_marginTop="10dp"            android:text="With Action Callback" />

        <Button            android:id="@+id/btnCustomSnackbar"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_marginTop="10dp"            android:text="Custom Color" />
    </LinearLayout>

    <android.support.design.widget.FloatingActionButton        android:id="@+id/fab"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="end|bottom"        android:layout_margin="16dp"        android:src="@android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>

3)style.xml


<resources>

    <!-- Base application theme. -->    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->    </style>

    <style name="MyMaterialTheme" parent="MyMaterialTheme.Base">
    </style>

    <style name="MyMaterialTheme.Base" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

</resources>

4)manifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.admin.snackbar" >

    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:theme="@style/MyMaterialTheme" >
        <activity            android:name=".MainActivity"            android:label="@string/app_name" >

        </activity>
        <activity            android:name=".FloatingLabelActivity"            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>