UPwa class abstract
Browser and install-state questions, plus the iOS "Add to Home Screen" walkthrough.
iOS has no beforeinstallprompt, so the only way to get a PWA onto an iPhone home
screen is to tell the user which buttons to press — that is what promptIosInstall does.
Every getter is false off the web.
// Show the install hint once when an iPhone user opens the web app in a browser.
if (UPwa.canPromptIosInstall) UPwa.promptIosInstall();
// Only iPhone Safari (the one that can actually install):
if (UPwa.isIphoneBrowser && UPwa.isIosSafari) UPwa.promptIosInstall();
// Force-show the instructions, e.g. behind a "How to install" button:
UPwa.promptIosInstall(force: true);
// Skip in-app install UI when it is already installed:
if (!UPwa.isStandalone) showInstallBanner();
Constructors
- UPwa()
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- canPromptIosInstall → bool
-
True when showing the install walkthrough would make sense: an iOS browser, not yet installed.
no setter
- isAndroidBrowser → bool
-
no setter
- isIosBrowser → bool
-
no setter
- isIosSafari → bool
-
True only for real Safari. Chrome, Firefox, Edge and Opera on iOS are WebKit too but
cannot install to the home screen, so they get the "open this in Safari" hint instead.
no setter
- isIphoneBrowser → bool
-
no setter
- isStandalone → bool
-
True when the app was launched from the home screen rather than a browser tab.
no setter