Advanced Android - Snackbar

Quiz

Snackbars are just like Toast messages except they provide action to interact with. Snackbar will be displayed at the bottom of the screen

Example

This example demostrate about how to integrate Android Snackbar.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2 − Open build.gradle and add design support library dependency.

dependencies {
   compile fileTree(dir: 'libs', include: ['*.jar'])
   testCompile 'junit:junit:4.12'
   compile 'com.android.support:appcompat-v7:24.2.0'
   compile 'com.android.support:design:24.2.1'
}

Step 3 − Add the following code to res/layout/activity_main.xml.

<?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: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>

Step 4 − Add the following code to src/MainActivity.java

package myapplication.example.com.myapplication;

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.Button;
import android.widget.TextView;

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

   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      coordinatorLayout = (CoordinatorLayout) findViewById(R.id.coordinatorLayout);
      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 Tutorialspoint.com", Snackbar.LENGTH_LONG);
            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) {
               } 
            }); 
            // 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);
            snackbar.show();
         }
      });
   }
}

Step 5 − Add the following code to manifest.xml

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

   <application
      android:allowBackup = "true"
      android:icon = "@mipmap/ic_launcher"
      android:label = "@string/app_name"
      android:supportsRtl = "true"
      android:theme = "@style/AppTheme">
      <activity android:name = ".MainActivity">
         <intent-filter>
            <action android:name = "android.intent.action.MAIN" />
            <category android:name = "android.intent.category.LAUNCHER" />
         </intent-filter>
      </activity>
   </application>

</manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run Eclipse Run Icon icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −

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