[英]Document Type Icon not showing on custom file MacOS
我的應用程序需要自定義文檔支持,但我沒有從xcode中的Document-template開始。 我確實通過遵循本教程的其他內容來管理正確加載和保存數據: https : //www.brandpending.com/2016/02/21/opening-and-saving-custom-document-types-from-a- swift-cocoa-application / 。 但有一個問題是我的自定義圖標沒有顯示在我的文件中! 它仍然是一個空白的頁面圖標:(。
我究竟做錯了什么?
這是我的設置:
我的HSDocument代碼:
-(BOOL)readFromURL:(NSURL *)url ofType:(NSString *)typeName error:(NSError * _Nullable __autoreleasing *)outError
{
NSDictionary *myDictionary = (NSDictionary*) [NSKeyedUnarchiver unarchiveObjectWithFile:[url path]];
self.archive = myDictionary;
return YES;
}
-(BOOL)writeToURL:(NSURL *)url ofType:(NSString *)typeName error:(NSError * _Nullable __autoreleasing *)outError
{
[NSKeyedArchiver archiveRootObject:self.archive toFile:[url path]];
return YES;
}
以下是我如何將數據加載/保存到文件中:(我不希望它被正常的菜單項觸發)
- (void)onLoadFile
{
NSOpenPanel *panel = [NSOpenPanel openPanel];
[panel setCanChooseFiles:YES];
[panel setCanChooseDirectories:YES];
[panel makeKeyAndOrderFront:nil];
[panel setLevel:NSStatusWindowLevel];
[panel setCanCreateDirectories:NO];
[[self.preferencesWindow window] setLevel:kCGNormalWindowLevel];
[panel setFrameOrigin:CGPointZero];
[panel beginWithCompletionHandler:^(NSInteger result)
{
if (result == NSFileHandlingPanelOKButton)
{
for (NSURL *url in [panel URLs])
{
NSError *error;
HSDocument *document = [HSDocument new];
[document readFromURL:url ofType:@"my-identifier" error:&error];
[self setPresetsFromCollection:document.archive onStartup:NO];
}
}
[[self.preferencesWindow window] setLevel:NSStatusWindowLevel];
}];
}
- (void)onSaveFile
{
NSSavePanel *panel = [NSSavePanel savePanel];
[panel setMessage:@"Please select a location to save the file."];
[panel setAllowsOtherFileTypes:YES];
[panel setExtensionHidden:YES];
[panel setTitle:@"Saving file..."]; // Window title
[panel setCanCreateDirectories:YES];
[[self.preferencesWindow window] setLevel:kCGNormalWindowLevel];
[panel beginWithCompletionHandler:^(NSInteger result)
{
if (result == NSFileHandlingPanelOKButton)
{
NSURL* theUrl = [panel URL];
theUrl = [theUrl URLByAppendingPathExtension:@"hej"];
HSDocument *document = [HSDocument new];
document.archive = [self collectPresetsToSave];
NSError *error;
[document writeToURL:theUrl ofType:@"my-identifier" error:&error];
}
[[self.preferencesWindow window] setLevel:NSStatusWindowLevel];
}];
}
日Thnx!
在Mojave,Xcode 10.1中遇到同樣的問題。
最終解決問題的是在文檔類型中使用.ICNS文件作為圖標。 只要我嘗試使用PNG文件,這些文件就永遠不會在finder中顯示。
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