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MToastToShow = Toast.makeText(this, "Hello world, I am a toast.", Toast. In this example, the countdown is used to display a toast message for a specific duration when a button is pressed: private Toast mToastToShow Keeping this in consideration, how can show double value in toast in Android java - android app: display double type value in toast. The CountDownTimer class schedules a countdown for a time in milliseconds with notifications at specified intervals until the countdown is finished. A Toast is displayed on top of the main content of an activity, and only remains visible for a short time period. You can use a android.os.CountDownTimer to count down the time for which to display a toast. There are no way to directly change the duration for which the toast is shown using the show() method without reimplementing the whole Toast class in your application, but there is a workaround. But what if you have a long error message that needs to be shown for longer than that? Or if you need to show a countdown that updates every second? The duration for which a toast is displayed on screen is unfortunately defined by a flag: you can either show it for a SHORT duration, which is 2 seconds or a LONG duration which is 3,5 seconds. Toast.makeText(context, "Hello world, I am a toast.", Toast.LENGTH_SHORT).show()

Now lets see how to we create a Toast: Make an object of the Toast class. Context context = getApplicationContext() public void setMargin (float horizontal, float vertical) This method can be used to set horizontal and vertical margin.