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QUESTION
I have a watch app with complications. Updating the complication on a watch face did work for a long time, but stopped recently, maybe due to a watchOS update.
The reason is that the activeComplications
property of the CLKComplicationServer.sharedInstance()
is nil
, although my complication placeholder is shown on the watch face (device & simulator).
The code could not be simpler:
...ANSWER
Answered 2021-Jun-11 at 18:26My bad: I solved the problem 4 years ago, but forgot the solution during refactoring of the app.
Actually I don’t know if this is a solution, a workaround or a hack:
I suspect that the CLKComplicationServer
or its CLKComplicationDataSource
, i.e. the ComplicationController
, is not correctly initialized if ComplicationController.shared
is executed anywhere in the code. If not, the ComplicationController
is correctly initialized by the CLKComplicationServer
.
Therefore, one cannot call any function in the ComplicationController
, e.g. to update complications. Instead one can send a notification to the ComplicationController
that executes the requested function. Of course, one has to ensure that the ComplicationController
is already initialized and registered to receive such a notification before it is posted.
If so, CLKComplicationServer.sharedInstance().activeComplications
is no longer nil
, and the complication update works.
QUESTION
I am working on a proof-of-concept app, written in Rust, with the end goal being to produce a shared library (.dll/.so) callable via C ABI from a number of other languages (C++, C#, etc). I have two simple components; poc
is a Rust console app, which references poclib
which exposes some simple functions. The app itself builds and runs fine so far, but I am stuck on how to debug it in VSCode using CodeLLDB.
I have a top level "workspace" like this:
...ANSWER
Answered 2021-Jun-10 at 15:46I don't understand why it worked at all initially, but the solution was to fix the crate_type
option so that I'm producing both C ABI libraries and native Rust libraries.
QUESTION
I've been developing a native application (C++ with an android wrapper) and have been successfully debugging it using Android Studio on two devices via USB: a portable POS with android 7.1.2 and a smartphone with 5.1, both armeabi-v7a.
Suddenly, i can't debug the smartphone anymore but the POS works fine.
When i click "debug", the app is installed but AS hangs at "Starting LLDB Server".
If i click run (or start the app on the smartphone) and then attach to process, the app freezes mid-start (it's uncompressing assets) and again AS hangs at "Starting LLDB Server" (by "hangs" i mean it won't advance, AS itself doesn't freeze). The log shows:
...ANSWER
Answered 2021-May-27 at 16:51This solved it, i.e., delete/create the launch profile in Edit configurations. Odd as i constantly recompile the app with different filenames (appending timestamps). Then again the android:name
is always the same.
I assume Studio keeps tabs somewhere relating to the devices it connects to, but i couldn't find where after a cursory grep.
QUESTION
#include
#include
#include
#include
#include
#include
#include
void debug(void);
char * string(const char * );
char * strcats(const char * ,const char * );
char * strspe(const char *, ...);
int isDir(const char *);
int main(void){
debug();
return 0;
}
void debug(void){
char * str = "ssssss";
str = string("abcdef");
char * hello;
hello = strspe(str,"hello","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world","world",NULL);
printf("hello: %s ,Address: %p\n",hello,(char *)hello);
}
char * string(const char * str){
return strcpy(malloc(strlen(str) * sizeof(char) + sizeof(char)),str);
}
char * strcats(const char * str1,const char * str2){
int realSize = (int)strlen(str2) * sizeof(char) + (int)strlen(str1) * sizeof(char) + sizeof(char);
str1 = realloc((char *)str1,realSize);
strcat((char *)str1,str2);
return (char *)str1;
}
char * strspe(const char * format, ...)
{
va_list args;
const char * argv;
char * result = string(format);
//free((char*)format);
va_start(args, format);
while((argv = va_arg(args,const char *)) && argv != NULL){
strcats((char *)result,argv);
}
va_end(args);
return result;
}
int isDir(const char *filename){
return (access(filename, 0) == 0);
}
...ANSWER
Answered 2021-Jun-08 at 16:45Problem is within this loop:
QUESTION
Why am I getting "Unexpectedly found nil while unwrapping an Optional value? I check the value of timerSeconds and it is correctly assigned to what I want it to be assigned to. However, when I call the function StartTimer my app is crashing.
...300 EggTimer/ViewController.swift:30: Fatal error: Unexpectedly found nil while unwrapping an Optional value 2021-06-02 19:17:04.380375+1000 EggTimer[27674:932041] EggTimer/ViewController.swift:30: Fatal error: Unexpectedly found nil while unwrapping an Optional value (lldb)
ANSWER
Answered 2021-Jun-05 at 03:40Note that in startTimer
, self.secondsRemaining
does not refer to the same thing as the parameter secondsRemaining
:
QUESTION
I want to save the textAlignment(TextView) in firebase But I am facing this error
Terminating app due to uncaught exception 'InvalidFirebaseData', reason: '(setValue:withCompletionBlock:) Cannot store object of type __SwiftValue at algmint. Can only store objects of type NSNumber, NSString, NSDictionary, and NSArray.' (lldb)
What is the correct way?
This is the func
...ANSWER
Answered 2021-Jun-04 at 16:29Firebase for iOS only alows you to save numbers, strings, dictionaries, or arrays. For NSTextAlignment
you could save a String
that represents the value. And then, when you download the object from the database, you create the instance with a switch. I would use extensions
to simplify further use.
In any part of your code (outside the scope of classes), add the following:
QUESTION
What's the LLDB equivalent of thread apply all bt
in GDB?
ANSWER
Answered 2021-Jun-03 at 11:19The corresponding command for LLDB is simply bt all
.
See https://lldb.llvm.org/use/map.html#examining-thread-state
QUESTION
The error log like below
2021-06-03 09:59:16.251029+0800 testing2[7167:2095191] [Storyboard] Unknown class _TtC8testing218NextViewController in Interface Builder file. Could not cast value of type 'UIViewController' (0x1d8c46428) to 'NextViewController' (0x102a90c50). 2021-06-03 09:59:16.252513+0800 testing2[7167:2095191] Could not cast value of type 'UIViewController' (0x1d8c46428) to 'NextViewController' (0x102a90c50). (lldb)
There is a link for my demo detail https://drive.google.com/file/d/1LcY3hb3yGYf_3bZpo6qnvZPMviVp2Jft/view?usp=sharing
I am a noob, please detail to say the step~ Thank you
...ANSWER
Answered 2021-Jun-03 at 06:36Solution 1
You can't use pushViewController
without navigationController
.
If you want you code will work, you need add navigationController
to you ViewController
.
Click to your ViewController
-> in upper menu select Editor
-> choose Embed In
-> Navigation Controller
.
Solution 2
Add Show
segue to your NextViewController
.
Then rename to nextSegue
and change kind to Present Modally
and set presentation to Full Screen
.
In your ViewController
:
QUESTION
{
"workbench.colorTheme": "Default Dark+"
}
{ }
"name": "C++ Launch",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceFolder}/a.out",
"stopAtEntry": false,
"customLaunchSetupCommands": [
{ "text": "target-run", "description": "run target", "ignoreFailures": false }
],
"launchCompleteCommand": "exec-run",
"linux": {
"MIMode": "gdb",
"miDebuggerPath": "/usr/bin/gdb"
},
"osx": {
"MIMode": "lldb"
},
"windows": {
"MIMode": "gdb",
"miDebuggerPath": "C:\\MinGw\\bin\\gdb.exe"
}
}
...ANSWER
Answered 2021-May-29 at 03:52What you have posted is not valid json. You've got several typos including:
- An empty empty set of curly braces
{}
on line 7, followed by several key value attribute pairs not enclosed in curly braces.
This might be closer to what you want:
QUESTION
Trying to solve https://leetcode.com/problems/k-concatenation-maximum-sum/submissions/, I still got integer overflow when the data type is long
ANSWER
Answered 2021-May-28 at 07:03This is because 9999800000
is larger than what can be stored in 32 bits. long
only provides a minimum size guarantee of 32
bits. If you use long long
for all the operands and result variable in the expression, it evaluates to the correct value. long long
provides a minimum guarantee of 64 bits.
Check this for more details - https://en.wikipedia.org/wiki/C_data_types#Main_types
The following snippet worked for me:
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