You can not a native view as the initial view. View types that are incompatible with Ui.switchToView() are incompatible with getInitialView(). The documentation for Ui.switchToView() covers this topic.
As for what the delegate used with a ProgressBar should look like, you just need to provide something that inherits from Ui.BehaviorDelegate. The onBack() method will be called if the user presses the back button. None of the other delegate functions are used. This is mentioned in the documentation for the Ui.ProgressBar.
Travis
function getInitialView() {
return [new StartupView(), new StartupDelegate()];
}
class StartupDelegate extends Ui.BehaviorDelegate {
function initialize() {
BehaviorDelegate.initialize();
}
function onMenu() {
return true;
}
}
class WaitingDelegate extends Ui.BehaviorDelegate {
function initialize() {
BehaviorDelegate.initialize();
}
function onBack() {
Ui.popView(Ui.SLIDE_IMMEDIATE);
return true;
}
}
Have you tried just returning false from WaitingDelegate.onBack() (or not providing an implementation).
App.initialize
App.onStart
App.getInitialView
StartupView.initialize
StartupDelegate.initialize
StartupView.onShow
StartupView.onUpdate
StartupView.onUpdate
StartupView.onUpdate
StartupDelegate.onMenu
WaitingView.initialize
WaitingDelegate.initialize
StartupView.onUpdate
StartupView.onHide
WaitingDelegate.onTimer
StartupView.onShow
StartupView.onUpdate
StartupView.onUpdate
StartupView.onUpdate
StartupView.onUpdate
StartupView.onHide
App.onStop
App.initialize
App.onStart
App.getInitialView
StartupView.initialize
StartupDelegate.initialize
StartupView.onShow
StartupView.onUpdate
StartupDelegate.onMenu
WaitingView.initialize
WaitingDelegate.initialize
StartupView.onHide
WaitingDelegate.onBack
StartupView.onShow
StartupView.onUpdate
StartupView.onUpdate
StartupView.onHide
App.onStop
using Toybox.Application as App;
using Toybox.WatchUi as Ui;
using Toybox.System as Sys;
using Toybox.Graphics as Gfx;
using Toybox.Timer as Timer;
class WaitingView extends Ui.ProgressBar
{
function initialize() {
Sys.println("WaitingView.initialize");
ProgressBar.initialize("Waiting...", null);
}
}
class WaitingDelegate extends Ui.BehaviorDelegate
{
hidden var _M_timer;
function initialize() {
Sys.println("WaitingDelegate.initialize");
BehaviorDelegate.initialize();
// automatically dismiss the progress bar after 30 seconds to avoid
// the need to reboot the device to resolve the situation
_M_timer = new Timer.Timer();
_M_timer.start(self.method(:onTimer), 30000, false);
}
function onBack() {
Sys.println("WaitingDelegate.onBack");
_M_timer.stop();
_M_timer = null;
return false;
}
function onTimer() {
Sys.println("WaitingDelegate.onTimer");
_M_timer.stop();
_M_timer = null;
Ui.popView(Ui.SLIDE_UP);
}
}
class StartupView extends Ui.View
{
function initialize() {
Sys.println("StartupView.initialize");
View.initialize();
}
function onUpdate(dc) {
Sys.println("StartupView.onUpdate");
dc.setColor(Gfx.COLOR_WHITE, Gfx.COLOR_RED);
dc.clear();
var cx = dc.getWidth() / 2;
var cy = dc.getHeight() / 2;
dc.drawText(cx, cy, Gfx.FONT_SMALL, "Press Menu",
Gfx.TEXT_JUSTIFY_CENTER | Gfx.TEXT_JUSTIFY_VCENTER);
}
}
class StartupDelegate extends Ui.BehaviorDelegate
{
function initialize() {
Sys.println("StartupDelegate.initialize");
BehaviorDelegate.initialize();
}
function onMenu() {
Sys.println("StartupDelegate.onMenu");
Ui.pushView(new WaitingView(), new WaitingDelegate(), Ui.SLIDE_UP);
return true;
}
}
class BytesApp extends App.AppBase {
function initialize() {
Sys.println("App.initialize");
AppBase.initialize();
}
function onStart(params) {
Sys.println("App.onStart");
}
function onStop(params) {
Sys.println("App.onStop");
}
function getInitialView() {
Sys.println("App.getInitialView");
return [ new StartupView(), new StartupDelegate() ];
}
}