You can customize your Toastview like this,
LayoutInflater inflater = getLayoutInflater();
View toastLayout = inflater.inflate(R.layout.custom_toast, (ViewGroup) findViewById(R.id.custom_toast_layout));
Toast toast = new Toast(getApplicationContext());
toast.setDuration(Toast.LENGTH_LONG);
toast.setView(toastLayout);
toast.show();
custom_toast layout,
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Custom Android Toast View Example" />
<Button
android:id="@+id/show_custom_toast"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/textView"
android:text="Show Custom Toast" />
</RelativeLayout>