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Android : Toast Example

Tutorial by:      Date: 2016-05-10 04:58:34

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Andorid Toast can be used to display information for the short period of time. A toast contains message to be displayed quickly and disappears after sometime.

The android.widget.Toast class is the subclass of java.lang.Object class.

You can also create custom toast as well for example toast displaying image. You can visit next page to see the code for custom toast.


Toast class

Toast class is used to show notification for a particular interval of time. After sometime it disappears. It doesn't block the user interaction.

Constants of Toast class

There are only 2 constants of Toast class which are given below.

Constant Description
public static final int LENGTH_LONG displays view for the long duration of time.
public static final int LENGTH_SHORT displays view for the short duration of time.

Methods of Toast class

The widely used methods of Toast class are given below.

Method Description
public static Toast makeText(Context context, CharSequence text, int duration) makes the toast containing text and duration.
public void show() displays toast.
public void setMargin (float horizontalMargin, float verticalMargin) changes the horizontal and vertical margin difference.

Android Toast Example

 
  1. Toast.makeText(getApplicationContext(),"Hello fastread",Toast.LENGTH_SHORT).show();  

Another code:

 
  1. Toast toast=Toast.makeText(getApplicationContext(),"Hello fastread",Toast.LENGTH_SHORT);  
  2. toast.setMargin(50,50);  
  3. toast.show();  

Here, getApplicationContext() method returns the instance of Context.


Full code of activity class displaying Toast

Let's see the code to display the toast.

File: MainActivity.java
 
  1. package com.example.toast;  
  2. import android.os.Bundle;  
  3. import android.app.Activity;  
  4. import android.view.Menu;  
  5. import android.view.View;  
  6. import android.widget.Toast;  
  7.   
  8. public class MainActivity extends Activity {  
  9.      @Override  
  10.         public void onCreate(Bundle savedInstanceState) {  
  11.             super.onCreate(savedInstanceState);  
  12.             setContentView(R.layout.activity_main);  
  13.               
  14.         //Displaying Toast with Hello fastread message  
  15.             Toast.makeText(getApplicationContext(),"Hello fastread",Toast.LENGTH_SHORT).show();  
  16.         }  
  17.   
  18.         @Override  
  19.         public boolean onCreateOptionsMenu(Menu menu) {  
  20.             getMenuInflater().inflate(R.menu.activity_main, menu);  
  21.             return true;  
  22.         }  
  23.   
  24. }

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