A toast provides simple feedback about an operation in a small popup. It only fills the amount of space required for the message and the current activity remains visible and interactive. Toasts automatically disappear after a timeout.
Toast
First, instantiate a Toast object with one of the makeText() methods. This method takes three parameters: the application Context, the text message, and the duration for the toast.
// also supports Toast.LENGTH_LONG
Toast.makeText(getApplicationContext(), "some message", Toast.LENGTH_SHORT).show();// also supports Toast.LENGTH_LONG
Toast.makeText(applicationContext, "some message", Toast.LENGTH_SHORT).show()You can configure the position of a Toast. A standard toast notification appears near the bottom of the screen, centered horizontally. You can change this position with the setGravity method and specifying a Gravity constant.
Toast toast = Toast.makeText(getApplicationContext(), "some message", Toast.LENGTH_SHORT);
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
toast.show();val toast = Toast.makeText(applicationContext, "some message", Toast.LENGTH_SHORT)
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0)
toast.show()You can also create a Toast that uses a custom XML layout rather than just displaying plain text. First, simply define the XML view in res/layout in a file such as toast_layout.xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/toast_layout_root">
<ImageView
android:src="@drawable/droid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="8dp" />
<TextView
android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFF" />
</LinearLayout>Notice that the ID of the LinearLayout element is "toast_layout_root". You must use this ID to inflate the layout from the XML:
private void displayToast(String message) {
// Inflate toast XML layout
View layout = getLayoutInflater().inflate(R.layout.toast_layout,
(ViewGroup) findViewById(R.id.toast_layout_root));
// Fill in the message into the textview
TextView text = layout.findViewById(R.id.text);
text.setText(message);
// Construct the toast, set the view and display
Toast toast = new Toast(getApplicationContext());
toast.setView(layout);
toast.show();
}And then you can display the custom toast using displayToast("Message");.