By default a toast is displayed for 1 or 2 seconds. We can customize this thime and can show the toast for longer time 5,10,20 seconds etc.
We use CountDownTimer class for this purpose.
public class ToastActivity extends Activity
{
AlertDialog dialog;
static CountDownTimer timer =null;
Toast toast;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
TextView textView=new TextView(this);
textView.setTextColor(Color.BLUE);
textView.setBackgroundColor(Color.TRANSPARENT);
textView.setTextSize(20);
textView.setText("This Toast will Display for 20 Seconds in Center of The Screen");
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
toast.setView(textView);
// Create the CountDownTimer object and implement the 2 methods
// show the toast in onTick() method and cancel the toast in onFinish() method
// it will show the toast for 20 seconds (20000 milliseconds 1st argument) with interval of 1 second(2nd argument)
timer =new CountDownTimer(20000, 1000)
{
public void onTick(long millisUntilFinished)
{
toast.show();
}
public void onFinish()
{
toast.cancel();
}
}.start();
}
}
// Cancelling toast on a particular condition
if(your conditinal expression)
{
timer.cancel();
}
Customizing Toast In Android
Showing Toast for Longer Time
Customizing the Display Time of Toast
Using TimePickerDialog and DatePickerDialog In android
Animating A Button In Android
Populating ListView With DataBase
Customizing Checkboxes In Android
Increasin Size of Checkboxes
Android ProgressBar
Designing For Different Screen Sizes
Handling Keyboard Events
Understanding Android Manifest File of your android app
Working with Linear Layout (With Example)
Nested Linear Layout (With Example)
Table Layout
Frame Layout(With Example)
Absolute Layout
Grid Layout
Activity Life Cycle
Starting Activity For Result
Sending Data from One Activity to Other in Android
Returning Result from Activity
Using CheckBoxes in Android
Using AutoCompleteTextView in Android
Grid View
Customizing the Display Time of Toast
Customizing Toast At Runtime
Adding Image in Toast
Showing Toast for Longer Time
Adding Radio Buttons In Dialog
Adding Check Boxes In Dialog
Creating Customized Dialogs in Android
Adding EditText in Dialog
Creating Dialog To Collect User Input
How To Receive SMS
Accessing Inbox In Android
Creating Context Menu In Android
How to Forward an Incoming Call In Android
CALL States In Android
How To Vibrate The Android Phone
Sending Email In Android
Opening a webpage In Browser
How to Access PhoneBook In Android
Prompt User Input with an AlertDialog
Reading and Writing files to SD Card
Creating Table In Android
Inserting, Deleting and Updating Records In Table in Android
How to Create DataBase in Android
Accessing Inbox In Android
We use CountDownTimer class for this purpose.
CountDownTimer
IT is an abstarct class you can see details CountDownTimer
Display Toast for longer time
In this example we will show the toast for 20Seconds (20000 milliseconds)
public class ToastActivity extends Activity
{
AlertDialog dialog;
static CountDownTimer timer =null;
Toast toast;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// creating toast and setting properties
toast = new Toast(this);TextView textView=new TextView(this);
textView.setTextColor(Color.BLUE);
textView.setBackgroundColor(Color.TRANSPARENT);
textView.setTextSize(20);
textView.setText("This Toast will Display for 20 Seconds in Center of The Screen");
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
toast.setView(textView);
// Toast Display tTime Settings
// Create the CountDownTimer object and implement the 2 methods
// show the toast in onTick() method and cancel the toast in onFinish() method
// it will show the toast for 20 seconds (20000 milliseconds 1st argument) with interval of 1 second(2nd argument)
timer =new CountDownTimer(20000, 1000)
{
public void onTick(long millisUntilFinished)
{
toast.show();
}
public void onFinish()
{
toast.cancel();
}
}.start();
}
}
We can also cancel our toast before specified tine of 20 Seconds on a particular condition with following code
// Cancelling toast on a particular condition
if(your conditinal expression)
{
timer.cancel();
}
Advance Android Topics
Customizing Toast In Android
Showing Toast for Longer Time
Customizing the Display Time of Toast
Using TimePickerDialog and DatePickerDialog In android
Animating A Button In Android
Populating ListView With DataBase
Customizing Checkboxes In Android
Increasin Size of Checkboxes
Android ProgressBar
Designing For Different Screen Sizes
Handling Keyboard Events
More Android Topics:
Android : Introduction
Eclipse Setup for Android Development
Configuring Eclipse for Android DevelopmentBegging With Android
Creating Your First Android ProjectUnderstanding Android Manifest File of your android app
Working With Layouts
Understanding Layouts in AndroidWorking with Linear Layout (With Example)
Nested Linear Layout (With Example)
Table Layout
Frame Layout(With Example)
Absolute Layout
Grid Layout
Activity
Activity In AndroidActivity Life Cycle
Starting Activity For Result
Sending Data from One Activity to Other in Android
Returning Result from Activity
Working With Views
Using Buttons and EditText in AndroidUsing CheckBoxes in Android
Using AutoCompleteTextView in Android
Grid View
Toast
Customizing Toast In AndroidCustomizing the Display Time of Toast
Customizing Toast At Runtime
Adding Image in Toast
Showing Toast for Longer Time
Dialogs In Android
Working With Alert DialogAdding Radio Buttons In Dialog
Adding Check Boxes In Dialog
Creating Customized Dialogs in Android
Adding EditText in Dialog
Creating Dialog To Collect User Input
DatePicker and TimePickerDialog
Using TimePickerDialog and DatePickerDialog In androidWorking With SMS
How to Send SMS in AndroidHow To Receive SMS
Accessing Inbox In Android
ListView:
Populating ListView With DataBaseMenus In Android
Creating Option MenuCreating Context Menu In Android
TelephonyManager
Using Telephony Manager In AndroidWorking With Incoming Calls
How To Handle Incoming Calls in AndroidHow to Forward an Incoming Call In Android
CALL States In Android
Miscellaneous
Notifications In AndroidHow To Vibrate The Android Phone
Sending Email In Android
Opening a webpage In Browser
How to Access PhoneBook In Android
Prompt User Input with an AlertDialog
Storage: Storing Data In Android
Shared Prefferences In Android
SharedPreferences In AndroidFiles: File Handling In Android
Reading and Writing files to Internal StoarageReading and Writing files to SD Card
DataBase : Working With Database
Working With Database in AndroidCreating Table In Android
Inserting, Deleting and Updating Records In Table in Android
How to Create DataBase in Android
Accessing Inbox In Android
Where do you place the
ReplyDeleteif(your conditinal expression)
{
timer.cancel();
} ?
I am new to Android programming.
Thank you!!!! This saved me a TON of extra work.
ReplyDeleteFirst, CountDownTimer is not really an abstract class. If it were, you would not be able to instantiate it with new, which you do in the code.
ReplyDeleteSecond, you need to show the toast you constructed before the timer is activated. Otherwise, the toast will be shown with approx. a 1-second delay, upon the first onTick() call.
Finally, notice that if the duration is set to 5000 msec, you will only receive 3 onTick() callbacks, with just below 4, 3 and 2 seconds to finish (to prove this, insert a Log.d() statement into onTick() to print the remaining time). This means that the Toast has to sustain at least 2 seconds of showing by itself, which can be a problem with a default short duration setting. So, to be on the safe side, set the onTick interval to 500 not 1000 msec.
Good Exampe Sir
ReplyDelete