I'm using Xcode 4.3.1 with Phonegap 1.4.1 to build an iPhone app. Whenever I tap the status bar to scroll to top, the app crashes with an EXC_BAD_ACCESS error.
I've tried implementing a number of suggestions such as this
.
I've also tried adding variations of the below code:
[[[theWebView subviews] objectAtIndex:0] setScrollsToTop:NO];
((UIScrollView*)[theWebView.subviews objectAtIndex:0]).scrollsToTop = NO;
to the
- (void) webViewDidFinishLoad:(UIWebView*) theWebView
{
...
}
within the AppDelegate.m
However, I've have been unable to resolve the issue. My main concern is to stop the app form crashing, any insight would be greatly appreciated.
I am using cordova 1.7 and have the same problem. I found a workaround though. You need to patch phonegap by commenting out the creation of invsible iframe which is injected by phonegap to communicate with the native side. In fact, this iframe causes all kinds of rendering issues, not only the status bar problem:
if (cordova.commandQueue.length == 1 && !cordova.commandQueueFlushing) {
// if (!gapBridge) {
// createGapBridge();
// }
// gapBridge.src = "gap://ready";
location = "gap://ready";
}
I didn't find any side effects after I've made the above change. However, I know people complain that some plugins stopped working, e.g. google analytics.
Related
I recently updated to Xcode 7 and upgraded my iPhone to iOS 9. I have developed and released an iOS app that had worked perfectly fine on the latest version of iOS 8 and Xcode 6.
Upon trying to go through the process of updated the app for iOS 9 support, I am getting the most ridiculously strange error that has left me baffled.
I have done all the syntax corrections automatically through Xcode, and now my app builds properly. It even runs fine at first.
I have a button that segues to a view controller with a WebView. This view controller loads a link that will display either an image, website, or video from youtube. The content is loaded perfectly fine as always. However, the program will crash and reboot the simulator (and my iPhone) and send me to the lock screen when I click the Back button (I am on a navigation stack).
In Xcode, I get the following messages:
XPC Connection Interrupted.
Terminating since there is no system app.
I have Flurry analytics integrated in my app by the way, not sure if thats an issue.
How can I fix this issue? My searches for XPC connections do not seem to return problems similar to mine. I do not even have a clue what an XPC connection is, so why is this in my app anyway?
EDIT: I have found a workaround for the issue. I cannot really say it is a fix.
The crashing was occurring during the use of the method self.navigationController?.popViewControllerAnimated, when set to true. I happened to set this to false, and the crashing stops (now the transition looks awful).
I do not know why this works, and just adds to my confusion.
The problem lied in the storyboard for me as well. I created a new project and laid out the views and everything seemed to be working fine. I found these couple lines in the storyboard source (right click on storyboard and select view as -> source code) which weren't common between the working version and the broken version:
<keyCommands>
<keyCommand/>
</keyCommands>
I have no idea what those lines are supposed to do, or how they crept into my storyboard file, but they were what was crashing the app so hard that the phone had to restart. I removed those lines from my main project and everything worked again.
This error can be caused by executing a loop repeatedly. In my case it was a 'for' loop in which I reset the counting variable. As soon as I added an NSLog in the loop it was obvious.
I just faced the same problem. I don't know if that will help you, but I also think it's coming from the Storyboard:
In my case, the problem is coming from a UITextView. Whenever I try to change the default text inside it, I have this error. If I let the default text or leave it empty, the app works fine. Making an IBOutlet and changing the text programmatically works as well.
I tried with other UI elements, but only the UITextView seems to have this issue.
I have struggled with exact same error. Through a process of elimination I established that it had nothing to do with the any class but had to do with the storyboard. Luckily I keep regular backup copies and I tried to compare storyboards to establish what I had done - but could find nothing obvious.
The backup copy worked fine and I was able to copy my controller classes (from the faulty copy with the changes) into the backup copy and they worked fine.
I think there is a bug possibly in storyboards.
I have same error message when I place a subview in -layoutSubviews method:
-(void)layoutSubviews
{
[super layoutSubviews];
[self populateByImageViews];
}
It causes infinite cycle of layout process and crashes app. Don't place subviews in this place!
Deleting UITextView from the one of the view in Storybord removes the error in my case.
In valueChanged: method of a UIControl, I had the same problem
so I made the code inside valueChanged: to run in main thread and it solved the problem.
#IBAction func valueChanged(sender: AnyObject) {
dispatch_async(dispatch_get_main_queue(), {
//code
}
}
For me was some missing constraints with a UISearchBar, but the error was only in the simulator.
I only add some constraints and works better
For me it was xcode live issues caused by IB_DESIGNABLE
If you have any IB_DESIGNABLE in source files, the system's live tracker will check for issues in StoryBoard too. It may leads to unnecessary building.
To disable it-
Open Storyboard file. Editor -> Automatically Refresh Views (Uncheck)
If you needs to Disable Live issue tracking
XCode -> Preferences -> General -> Issues -> Uncheck Live Issues
Reference
My issue probably originated with some storyboard issue, but I cleaned the project, restarted Xcode AND restarted the simulator app and that fixed it.
When using QLPreviewController, I am confronted with this problem. Error messages as follows,
XPC connection interrupted
_BSMachError: (os/kern) invalid capability (20)
_BSMachError: (os/kern) invalid name (15)
Since XPC means OS X interprocess communication, so I think this can solve the problem, especial when updating the UI
dispatch_async(dispatch_get_main_queue(), ^{
// do what you want to do.
});
For Swift 4+, user
DispatchQueue.main.async {
//Your Code
}
I'm developing a lockscreen application using theos and part of the functionality requires icon images of certain applications on the phone. How can I go about getting those icon images and displaying them on the lockscreen of the phone?
I've tried everything I could think of so far and have searched through the springboard headers with no luck. I've specifically been trying retrieving the images from SBApplication and SBIconModel from suggestions I found through google, but still I have no luck.
Any help is greatly appreciated. Thanks!
After you %hook a class, inside the method you're using, do the following if for example you're trying to get the icon for the mail app
// Get the SBApplication for the mail app
Class $SBApplicationController = objc_getClass("SBApplicationController");
SBApplication *mailApp = [[$SBApplicationController sharedInstance] applicationWithDisplayIdentifier:#"com.apple.mobilemail"];
// Get the SBApplicationIcon for the mail app
SBApplicationIcon *mailAppIcon = [[objc_getClass("SBApplicationIcon") alloc] initWithApplication:mailApp];
The important thing is to get the right DisplayIdentifier of the app you're interested in.
Hope this help! any problems please shout.
Although, I accept the above as the answer, I ended up using the following code, which displays titles and badges:
SBIcon *sbIcon = [model applicationIconForDisplayIdentifier:identifier];
SBIconView *app = [[%c(SBIconView) alloc] initWithDefaultSize];
[app setIcon:sbIcon];
//if you want the titles to be conditional
[app setLabelHidden:!titlesEnabled];
//if you want the badge view to be conditional
id badgeView;
if (device_version >= 6.0) badgeView = MSHookIvar<id>(app, "_accessoryView");
else badgeView = MSHookIvar<id>(app, "_badgeView");
if (badgeView) [badgeView setHidden:!badgesEnabled];
I have a mobile web application, working well on simulator 5.1/6.0, xcode 4.5 for iphone.
But when I test on a real device (3gs, ios 5.1), I get a strange behavior: anywhere I place an input field html element, where I need the user to fill in something, I tap the field, it gains focus (I see the cursor), but the touch-keyboard does not come up and I can't type anything. If I try it on the sim, all is fine, the kb comes up.
I am not sure how to diagnose this... tried googling for some answers, haven't found any :(
any ideas?
thanks...
ok found the issue, seems like the app was not created using the latest Xcode template (it is a legacy app), so I removed the MainWindowxxx.xibs which I don't need, and used the code from a new XCode app template to initialize the app by programmatically creating the main view controller, and setting it as the window's rootViewController. And, of course, call [self.window makeKeyAndVisible]
I'm updating my PhoneGap iOS-app to make it compatible with the iPhone 5.
I'm manually hiding the splash screen after my app has initialized.
When simulating iPhone 5: When the app starts it displays the correct splash screen (Default-568h#2x.png) (hereon "the 5") but quickly hides it and instead displays the iPhone 4 splash screen (hereon "the 4"). The 4 doesn't cover the whole app, thus showing top and bottom bars of the app initializing.
I'm not entirely sure how it works but I can think of two possible scenarios:
1) Both images are displayed simultaneously but for some reason the 5 auto hides while the 4 waits for the call from the app to hide.
2) At some point when disabling manually hiding the splash screen phonegap switches out the "true" splashscreen for a "fake" one that is displayed until the javascript call from the app and phonegap just might not display correct one after this switcheroo.
Has anyone else encountered and / or solved this?
UPDATE:
Tried removing and adding all splash images again but to no avail. I tried removing the smaller images (the 4 and its non-retina version) but even without the smaller ones present anywhere in the project I get the same error!
UPDATE 2:
Cordova 2.2.0 has now been released, thus fixing this issue according to: http://shazronatadobe.wordpress.com/2012/10/27/whats-new-in-cordova-ios-2-2-0/
So, the recommended solution would therefore be to update your app to use Cordova 2.2.0, if that is for some reason not possible, solutions are provided below.
I've received two answers elsewhere but haven't had time to test them out yet:
From user T123 in the Phonegap Google Group:
open CDVViewController.m -- find - (void) showSplashScreen
change about line: 690
From :
else // not iPad
{
orientedLaunchImageFile = launchImageFile;
}
To:
else // not iPad
{
orientedLaunchImageFile = launchImageFile;
/* Edited for 4-inch IP5 */
if(screenBounds.size.height == 568)
orientedLaunchImageFile = [NSString stringWithFormat:#"%#-568h", launchImageFile];
}
And from Brion who commented above, the following pull request, hoepfully to be incorporated into Cordova 2.2.0: https://github.com/apache/incubator-cordova-ios/pull/50
EDIT: Tried T123's solution and it's working for me!
EDIT2: Brion's fix was incorporated in Cordova 2.2.0 which has now been released!
EDIT3: Just updating to highlight a comment for those who don't bother reading them:
For Phonegap version 1.4.1, I managed to get Hessius's fix to work like this: I copied the methods showSplashScreen, isIPad, resolveImageResource and the definition #define degreesToRadian(x) (M_PI * (x) / 180.0) from the file PGViewController.m to my MainViewController.m file. After that, XCode complained that I was assigning values to read-only attributes, so I edited the header file in PhoneGap.framework to make those two attributes readwrite. I also changed launchImageFilefrom Hessius's code to #"Default". This did the trick for me. – Joe Dyndale Oct 8 '12 at 15:23
The fix for this (https://issues.apache.org/jira/browse/CB-1482) is not out until 2.2. It is very risky to use the unstable version and I don't bother to compile from source code myself, so I tried the following hack:
In MainViewController.m
- (void) showSplashScreen
{
CGRect screenBounds = [[UIScreen mainScreen] bounds];
// HACK: PhoneGap pre-2.2 does not support iphone5 splash image well, so we just skip it
if (screenBounds.size.height == 568) {
return;
}
[super showSplashScreen];
}
This will disable showSplashScreen for iPhone5 to avoid the shorter launch image added by PhoneGap (iOS initial launch image is showing up fine). It worked for me and I barely notice any difference by hacking off showSplashScreen for iPhone5.
White Flicker
I was having this same problem with Cordova 2.2. I think it is worth mentioning that I had to take an added step in order to get the splash screen to render correctly.
I made the changes that were included in #Hessius answer. But I noticed that a white screen flash was produced after the splash screen appeared.
In the (void)showSplashScreen method others may see
if (launchImageFile == nil) { // fallback if no launch image was specified
// if (CDV_IsIPhone5()) {
// // iPhone 5 or iPod Touch 6th-gen
// launchImageFile = #"Default-568h";
// } else {
launchImageFile = #"Default";
// }
}
Commenting the code out(or removing) that I have commented, eliminated the white flicker I was seeing in between app load and launch screen.
Hope this helps someone!
I'm having a strange problem while debugging my Blackberry Application on a real device (BB Bold 9700). When I debug the same application within the BB emulator, the app runs fine, but when I run it on the real device, the app behaves differently (custom painting goes completely wrong). What's even worse is that my Eclipse environment seems to be unable to view live objects correctly while being at a break point (debug time).
I've added a screenshot to illustrate the strange behaviour:
As you can see, the app stops at the breakpoint within the IF statement, but the Variables pane says that the variable "methodName" equals null. Moreover, when I want to look at the variable "methodArguments" which is of type org.json.me.JSONArray, it says "details unavailable - not supported by VM".
Does anyone know what's going on here? My app works great on the emulator, but it's currently useless on the real device.
Thanks in advance!
I think I fixed it:
The problem was that I was laying out Fields on a manager that wasn't yet added to the viewstack.
What did the trick for me was overriding onDisplay() in the manager that contained the Fields that were displayed wrong:
protected void onDisplay()
{
//Make sure superclass is called
super.onDisplay();
/*You have to call "this.setDirty(true)" when you perform layout on a
*manager that isn't added to the viewstack. Then you can use
*"this.isDirty()" to determine whether you need to re-layout the fields
*when the manager becomes visible.*/
if(this.isDirty())
{
//I'm not sure if I need to use "invokeAndWait" and not "invokeLater"
UiApplication.getUiApplication().invokeAndWait(new Runnable()
{
public void run()
{
for (int i = 0; i < getFieldCount(); i++)
{
/*This (custom) function makes sure the Field gets its
*size and position*/
layoutItem(getField(i));
}
}
});
//Make sure you set "dirty" to false, to make sure this only happens once
this.setDirty(false);
}
}
If anyone has a better solution, I'd be glad to hear it (and maybe improve my app).
org.json.me.JSONArray, it says "details unavailable - not supported by VM".
the JSON related stuff is not available on device running 4.5 and 4.6 BB OS. Import it into the code.
Download it from here.
https://github.com/douglascrockford/JSON-java
it is available as Open Source and then use it into your applications.