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Added an option to execute JUCEApplication's suspend() method on an iOS background task to give you extra time to save your app's state

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This commit is contained in:
hogliux 2017-02-27 12:24:13 +00:00
parent a839fa24b3
commit 2bec815bb3
2 changed files with 42 additions and 2 deletions
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9
modules/juce_events/juce_events.h
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@ -57,6 +57,15 @@
#include <juce_core/juce_core.h>
//==============================================================================
/** Config: JUCE_EXECUTE_APP_SUSPEND_ON_IOS_BACKGROUND_TASK
Will execute your application's suspend method on an iOS background task, giving
you extra time to save your applications state.
*/
#ifndef JUCE_EXECUTE_APP_SUSPEND_ON_BACKGROUND_TASK
#define JUCE_EXECUTE_APP_SUSPEND_ON_BACKGROUND_TASK 0
#endif
#if JUCE_EVENTS_INCLUDE_WINRT_WRAPPER && JUCE_WINDOWS
#include <hstring.h>
#endif

35
modules/juce_gui_basics/native/juce_ios_Windowing.mm
View file

@ -37,9 +37,11 @@ Array<AppInactivityCallback*> appBecomingInactiveCallbacks;
@interface JuceAppStartupDelegate : NSObject <UIApplicationDelegate>
{
UIBackgroundTaskIdentifier appSuspendTask;
}
@property (strong, nonatomic) UIWindow *window;
- (id)init;
- (void) applicationDidFinishLaunching: (UIApplication*) application;
- (void) applicationWillTerminate: (UIApplication*) application;
- (void) applicationDidEnterBackground: (UIApplication*) application;
@ -52,6 +54,14 @@ Array<AppInactivityCallback*> appBecomingInactiveCallbacks;
@implementation JuceAppStartupDelegate
- (id)init
{
self = [super init];
appSuspendTask = UIBackgroundTaskInvalid;
return self;
}
- (void) applicationDidFinishLaunching: (UIApplication*) application
{
ignoreUnused (application);
@ -76,10 +86,31 @@ Array<AppInactivityCallback*> appBecomingInactiveCallbacks;
- (void) applicationDidEnterBackground: (UIApplication*) application
{
ignoreUnused (application);
if (JUCEApplicationBase* const app = JUCEApplicationBase::getInstance())
{
#if JUCE_EXECUTE_APP_SUSPEND_ON_BACKGROUND_TASK
appSuspendTask = [application beginBackgroundTaskWithName:@"JUCE Suspend Task" expirationHandler:^{
if (appSuspendTask != UIBackgroundTaskInvalid)
{
[application endBackgroundTask:appSuspendTask];
appSuspendTask = UIBackgroundTaskInvalid;
}
}];
MessageManager::callAsync ([self,application,app] ()
{
app->suspended();
if (appSuspendTask != UIBackgroundTaskInvalid)
{
[application endBackgroundTask:appSuspendTask];
appSuspendTask = UIBackgroundTaskInvalid;
}
});
#else
ignoreUnused (application);
app->suspended();
#endif
}
}
- (void) applicationWillEnterForeground: (UIApplication*) application