How to display Toast in Android?

Question

I have a slider that can be pulled up and then it shows a map. I can move the slider up and down to hide or show the map. When the map is on front, I can handle touch events on that map. Everytime I touch, a AsyncTask is fired up, it downloads some data and makes a Toast that displays the data. Although I start the task on touch event no toast is displayed, not till I close the slider. When the slider is closed and the map is not displayed anymore the Toast appears.

Any ideas?

Well start the task

EDIT:

public boolean onTouchEvent(MotionEvent event, MapView mapView){ 
    if (event.getAction() == 1) {
        new TestTask(this).execute();
        return true;            
    }else{
        return false;
    }
 }

and in onPostExecute make a toast

Toast.makeText(app.getBaseContext(),(String)data.result, 
                Toast.LENGTH_SHORT).show();

In new TestTask(this), this is a reference to MapOverlay and not to MapActivity, so this was the problem.

this post was answered long time ago, but I think my comment may still help somebody. there is well-formed library related to `Toast`, check it: http://stackoverflow.com/a/18280318/1891118 — Oleksii K., Aug 14 '14 at 13:03
Almost all about Toast... simple tutorial....[click here](https://androidride.com/how-to-use-toast-in-android-example/) — Thomas Daniel, Feb 28 '19 at 11:35

score 897 · Accepted Answer · edited Jan 10 '17 at 09:08

897

In order to display Toast in your application, try this:

Toast.makeText(getActivity(), (String)data.result, 
   Toast.LENGTH_LONG).show();

Another example:

Toast.makeText(getActivity(), "This is my Toast message!",
   Toast.LENGTH_LONG).show();

We can define two constants for duration:

int LENGTH_LONG Show the view or text notification for a long period of time.

int LENGTH_SHORT Show the view or text notification for a short period of time.

Customizing your toast

LayoutInflater myInflater = LayoutInflater.from(this);
View view = myInflater.inflate(R.layout.your_custom_layout, null);
Toast mytoast = new Toast(this);
mytoast.setView(view);
mytoast.setDuration(Toast.LENGTH_LONG);
mytoast.show();

edited Jan 10 '17 at 09:08

Willi Mentzel

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answered Aug 17 '10 at 16:06

Jorgesys

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@Elen, you need Activity context for making TOASTS, not Application context. – Yousha Aleayoub Sep 20 '15 at 17:53
1

Actually, requiring an Activity context is not correct. HOWEVER, getting toasts to work outside of activities (for example in a system Service) requires access to the main loop. Posting my solution. – MobA11y Dec 10 '15 at 21:31
7

If you're putting it inside an onClick method, replacing getActivity() with getBaseContext() worked for me. – Edward May 02 '16 at 02:00
@PhilipBelgrave-Herbert Unfortunately your link is no longer good. – Ellen Spertus Feb 28 '17 at 21:33
@IWannaKnow this is probably late haha but change getActivity() to your activity name – Grand Skunk Sep 30 '18 at 23:59
Unfortunately this answer does not work with the new version of android studio – Shahab Einabadi Oct 15 '18 at 02:40
4

Toast.makeText(MainActivity.this, message, Toast.LENGTH_LONG).show(); – Shahab Einabadi Oct 15 '18 at 02:41

Cristiana Chavez · Answer 2 · 2015-09-21T04:01:35.340

87

Extending activity using baseadapter used this

Toast.makeText(getActivity(), 
    "Your Message", Toast.LENGTH_LONG).show();

or if you are using activity or mainactivity

Toast.makeText(MainActivity.this, 
    "Your Message", Toast.LENGTH_LONG).show();

edited Sep 21 '15 at 04:01

answered Dec 12 '13 at 11:51

Cristiana Chavez

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there is no such thing like base adapter or main activity , toast only display by passing parameter app context, message, duration-long/short – Mahesh Nov 21 '16 at 11:24

Jaykumar Patel · Answer 3 · 2014-03-31T06:44:04.117

49

Syntax

Toast.makeText(context, text, duration);

Parameter Value

context

getApplicationContext() - Returns the context for all activities running in application.

getBaseContext() - If you want to access Context from another context within application you can access.

getContext() - Returns the context view only current running activity.

text

text - Return "STRING" , If not string you can use type cast.

 (string)num   // type caste

duration

Toast.LENGTH_SHORT - Toast delay 2000 ms predefined

Toast.LENGTH_LONG - Toast delay 3500 ms predefined

milisecond - Toast delay user defined miliseconds (eg. 4000)

Example.1

Toast.makeText(getApplicationContext(), "STRING MESSAGE", Toast.LENGTH_LONG).show();

Example.2

Toast.makeText(getApplicationContext(), "STRING MESSAGE", 5000).show();

edited Mar 31 '14 at 06:44

answered Mar 10 '14 at 08:55

Jaykumar Patel

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User defined 5000 millisecond toast delay. – Jaykumar Patel Mar 15 '15 at 19:52
Good explain, but you need Activity context for making TOASTS, not Application context. – Yousha Aleayoub Sep 20 '15 at 17:54
Well, well, a cast such as (string)num has not yet been introduced to Java. Try Integer.toString() or similar. – Sep 30 '15 at 20:17
4

**setting duration is not possible for a toast, only the predefined times, LENGTH_SHORT & LENGTH_LONG**. – Jorgesys Dec 08 '16 at 15:43

score 31 · Answer 4 · edited Jan 03 '23 at 16:26

31

To toast in Android,

import android.widget.Toast;


Toast.makeText(MainActivity.this, "YOUR MESSAGE", Toast.LENGTH_SHORT).show();

or

Toast.makeText(MainActivity.this, "YOUR MESSAGE", Toast.LENGTH_LONG).show();

( LENGTH_SHORT and LENGTH_LONG are acting as boolean flags - which means you cant sent toast timer to miliseconds, but you need to use either of those 2 options )

edited Jan 03 '23 at 16:26

Viraj Singh

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answered Apr 09 '13 at 08:15

Dinesh

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Read the documentation, you will only choose either Toast.LENGTH_SHORT or Toast.LENGTH_LONG for the message duration. – Jorgesys Jan 16 '14 at 21:35

score 21 · Answer 5 · edited Jul 02 '23 at 04:21

21

You can customize your toast:

LayoutInflater mInflater = LayoutInflater.from(this);
View view = mInflater.inflate(R.layout.your_layout_file, null);
Toast toast = new Toast(this);
toast.setView(view);
toast.setDuration(Toast.LENGTH_LONG);
toast.show();

Or General way:

Toast.makeText(context,"Your message.", 
Toast.LENGTH_LONG).show();

edited Jul 02 '23 at 04:21

Prashant Ghimire

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answered Nov 22 '12 at 13:50

Mahesh

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Right - here are some examples from real projects on GitHub - http://www.codota.com/android/methods/android.widget.Toast/show – drorw Apr 13 '16 at 07:05

score 15 · Answer 6 · answered Mar 31 '16 at 17:45

15

I have tried several toast and for those whom their toast is giving them error try

Toast.makeText(getApplicationContext(), "google", Toast.LENGTH_LONG).show();

answered Mar 31 '16 at 17:45

score 14 · Answer 7 · answered Oct 19 '14 at 16:44

14

There are two ways to do it.

Either use the inbuilt Toast message

//Toast shown for  short period of time 
Toast.makeText(getApplicationContext(), "Toast Message", Toast.LENGTH_SHORT).show();

//Toast shown for long period of time
Toast.makeText(getApplicationContext(), "Toast Message", Toast.LENGTH_LONG).show();

or make a custom one by providing custom layout file

Toast myToast = new Toast(getApplicationContext());
myToast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
myToast.setDuration(Toast.LENGTH_LONG);
myToast.setView(myLayout);
myToast.show();

answered Oct 19 '14 at 16:44

Aniket Thakur

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Good explain, but you need Activity context for making TOASTS, not Application context. – Yousha Aleayoub Sep 20 '15 at 17:54
The android docs specifically mention application context: "This method takes three parameters: the application Context, the text message, and the duration for the toast. It returns a properly initialized Toast object." – lgunsch Feb 07 '17 at 00:19

MobA11y · Answer 8 · 2015-12-10T23:07:01.033

I ran across the answers here, and was attracted by the fact that there seems to be someone poking around, believing that an Activity context is required. This is not the case. However, it is a requirement that a Toast is posted from the main event or UI Thread. So, getting this to work outside of an activity context is a little bit tricky. Here is an example that would work inside of a system service, or any potential class that ultimately inherits from Context.

public class MyService extends AccessibilityService {

    public void postToastMessage(final String message) {
        Handler handler = new Handler(Looper.getMainLooper());

        handler.post(new Runnable() {

            @Override
            public void run() {
                Toast.makeText(getApplicationContext(), message, Toast.LENGTH_LONG).show();
            }
        });
    }
}

Note that we do not need access to an instance of Activity for this to work. Please stop suggesting this is the case! If Activity were required, the method signature wouldn't call for a Context.

Yogesh Nandha · Answer 9 · 2018-10-31T12:32:39.883

8

Toast.makeText(app.getBaseContext(),"your string",Toast.LENGTH_SHORT).show();

instead of using "app.getBaseContext()".

You can try using "getApplicationContext()" or "getContext()".

If your code is in activity then you should use "this" of "Activty.this".
If your code is in fragment then you should go for "getActivity()"

edited Oct 31 '18 at 12:32

answered Nov 04 '16 at 09:34

Yogesh Nandha

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score 7 · Answer 10 · edited Dec 16 '14 at 08:44

7

If it's fragment,

Toast.makeText(getActivity(), "this is my Toast message!!! =)",
                   Toast.LENGTH_LONG).show();

edited Dec 16 '14 at 08:44

Rajesh Loganathan

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answered Dec 16 '14 at 08:25

hash

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score 6 · Answer 11 · answered Jun 20 '13 at 10:38

6

For displaying Toast use the following code:

Toast toast = new Toast(getApplicationContext());

toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);

toast.setDuration(Toast.LENGTH_LONG);

toast.show();

answered Jun 20 '13 at 10:38

Anurag

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score 6 · Answer 12 · edited Jun 20 '20 at 09:12

Simple Way

`toast("Your Message")`

OR

`toast(R.string.some_message)`

Just add two methods in your BaseActivity. Or create new BaseActivity if you are not already using.

public class BaseActivity extends AppCompatActivity {
    public void toast(String msg) {
        Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
    }

    public void toast(@StringRes int msg) {
        Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
    }
}

and extend all your activities by BaseActivity.

public class MainActivity extends BaseActivity

score 5 · Answer 13 · edited Dec 17 '14 at 17:27

5

 Toast toast=Toast.makeText(getApplicationContext(),"Hello", Toast.LENGTH_SHORT);
 toast.setGravity(Gravity.CENTER, 0, 0); // last two args are X and Y are used for setting position
 toast.setDuration(10000);//you can even use milliseconds to display toast
 toast.show();**//showing the toast is important**

edited Dec 17 '14 at 17:27

AtanuCSE

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answered Dec 17 '14 at 13:07

Gowtham Chandrasekaran

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Athira Reddy · Answer 14 · 2019-06-30T01:24:03.970

4

Must read: Android Toast Example

Syntax

Toast.makeText(context, text, duration);

You can use getApplicationContext() or getActivity() or MainActivity.this(if Activity Name is MainActivity)

Toast.makeText(getApplicationContext(),"Hi I am toast",Toast.LENGTH_LONG).show();

or

Toast.makeText(MainActivity.this,"Hi I am Toast", Toast.LENGTH_LONG).show();

edited Jun 30 '19 at 01:24

answered Mar 13 '19 at 16:32

Athira Reddy

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score 4 · Answer 15 · answered Apr 12 '20 at 12:27

4

Inside Fragments (onCreateView)

Toast.makeText(getActivity(), "your message" , Toast.LENGTH_LONG).show();

Inside Classes (onCreate)

Toast.makeText(myClassName.this, "your message" , Toast.LENGTH_LONG).show();

answered Apr 12 '20 at 12:27

MoniFern

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devDeejay · Answer 16 · 2017-07-18T02:10:04.733

3

Simplest way! (To Display In Your Main Activity, replace First Argument for other activity)

Button.setOnClickListener(new View.OnClickListener(){
    @Override
    public void onClick(View v){
        Toast.makeText(MainActivity.this,"Toast Message",Toast.LENGTH_SHORT).show();
    }
}

edited Jul 18 '17 at 02:10

answered Feb 19 '17 at 09:06

devDeejay

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score 3 · Answer 17 · answered Aug 10 '18 at 22:09

3

This worked for me:

Toast.makeText(getBaseContext(), "your text here" , Toast.LENGTH_SHORT ).show();

answered Aug 10 '18 at 22:09

score 3 · Answer 18 · answered Nov 30 '19 at 02:13

3

The Getting Started Way

Toast.makeText(this, "Hello World", Toast.LENGTH_SHORT).show();

answered Nov 30 '19 at 02:13

Pengguna

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score 2 · Answer 19 · answered Feb 23 '19 at 15:09

Here's another one:

refreshBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getBaseContext(),getText(R.string.refresh_btn_pushed),Toast.LENGTH_LONG).show();
            }
        });

Where Toast is:

Toast.makeText(getBaseContext(),getText(R.string.refresh_btn_pushed),Toast.LENGTH_LONG).show();

& strings.xml:

<string name="refresh_btn_pushed">"Refresh was Clicked..."</string>

score 1 · Answer 20 · edited Jun 20 '20 at 09:12

Show Toast from Service

public class ServiceA extends Service {
    //....
    public void showToast(final String message) {
        Handler handler = new Handler(Looper.getMainLooper());
        handler.post(new Runnable() {

            @Override
            public void run() {
                Toast.makeText(getContext(), message, Toast.LENGTH_LONG).show();
            }
        });
    }
    //....
}

You can also put showToast method in your Application class, and show toast from anywhere.

score 1 · Answer 21 · answered Nov 01 '18 at 07:26

If you want to write a simple toast in your activity: Toast.makeText(getApplicationContext(),"Hello",Toast.LENGTH_SHORT).show();

1.Showing TextView in Toast:---

TextView tv = new TextView(this); tv.setText("Hello!"); tv.setTextSize(30); tv.setTextColor(Color.RED); tv.setBackgroundColor(Color.YELLOW);

2.Showing Image as Toast:--

ImageView iv = new ImageView(this); iv.setImageResource(R.drawable.blonde); Toast t = new Toast(this); t.setView(iv); t.setDuration(Toast.LENGTH_LONG); t.show();

3.showing Layout as Toast:--

LayoutInflater li = getLayoutInflater(); View view = li.inflate(R.layout.my_toast_layout,null,false); Toast t = new Toast(this); t.setView(view); t.setDuration(Toast.LENGTH_LONG); t.show();

** If you want to write the toast in your Async then: private Activity activity; private android.content.Context context; this.activity = activity; this.context = context; Toast.makeText(context, "Hello", Toast.LENGTH_SHORT).show();

score 0 · Answer 22 · answered Apr 20 '22 at 18:31

Extension function with some kotlin sugar

fun Context.showToast(string: String){
    Toast.makeText(
        this, string,
        Toast.LENGTH_SHORT
    ).show()
}

Usage:

From Activity: showToast("toast)

From Fragment: requiredContext().showToast("toast)