#import <UIKit/UIKit.h> @interface ViewController : UIViewController<UITableViewDelegate,UITableViewDataSource> @property (strong, nonatomic) NSArray *fontNames; @property (strong, nonatomic) NSArray *fontSamples; @property (weak, nonatomic) IBOutlet UITableView *fTableView; @property (weak, nonatomic) IBOutlet UITextView *fTextView; @property (weak, nonatomic) IBOutlet UIProgressView *fProgressView; @property (weak, nonatomic) IBOutlet UIActivityIndicatorView *fActivityIndicatorView; @end Copyright (C) 2013 Apple Inc. All Rights Reserved. */ #import "ViewController.h" #import <CoreText/CoreText.h> //下載官方提供的中文字體 demo連接 //https://developer.apple.com/library/ios/samplecode/DownloadFont/Listings/DownloadFont_ViewController_m.html @interface ViewController () @property (strong, nonatomic) NSString *errorMessage; @end @implementation ViewController - (void)asynchronouslySetFontName:(NSString *)fontName { UIFont* aFont = [UIFont fontWithName:fontName size:12.]; // If the font is already downloaded//先判斷字體是否已經被下載 if (aFont && ([aFont.fontName compare:fontName] == NSOrderedSame || [aFont.familyName compare:fontName] == NSOrderedSame)) { // Go ahead and display the sample text. NSUInteger sampleIndex = [_fontNames indexOfObject:fontName]; _fTextView.text = [_fontSamples objectAtIndex:sampleIndex]; _fTextView.font = [UIFont fontWithName:fontName size:24.]; return; } // Create a dictionary with the font's PostScript name. NSMutableDictionary *attrs = [NSMutableDictionary dictionaryWithObjectsAndKeys:fontName, kCTFontNameAttribute, nil]; // Create a new font descriptor reference from the attributes dictionary. CTFontDescriptorRef desc = CTFontDescriptorCreateWithAttributes((__bridge CFDictionaryRef)attrs); NSMutableArray *descs = [NSMutableArray arrayWithCapacity:0];//將字體描述對象放在可變數組中 [descs addObject:(__bridge id)desc]; CFRelease(desc); __block BOOL errorDuringDownload = NO; // Start processing the font descriptor.. // This function returns immediately, but can potentially take long time to process. // The progress is notified via the callback block of CTFontDescriptorProgressHandler type. // See CTFontDescriptor.h for the list of progress states and keys for progressParameter dictionary. CTFontDescriptorMatchFontDescriptorsWithProgressHandler( (__bridge CFArrayRef)descs, NULL, ^(CTFontDescriptorMatchingState state, CFDictionaryRef progressParameter) { //NSLog( @"state %d - %@", state, progressParameter); double progressValue = [[(__bridge NSDictionary *)progressParameter objectForKey:(id)kCTFontDescriptorMatchingPercentage] doubleValue]; if (state == kCTFontDescriptorMatchingDidBegin) { dispatch_async( dispatch_get_main_queue(), ^ { // Show an activity indicator NSLog(@"字體已經匹配"); [_fActivityIndicatorView startAnimating]; _fActivityIndicatorView.hidden = NO; // Show something in the text view to indicate that we are downloading _fTextView.text= [NSString stringWithFormat:@"Downloading %@", fontName]; _fTextView.font = [UIFont systemFontOfSize:14.]; NSLog(@"Begin Matching"); }); } else if (state == kCTFontDescriptorMatchingDidFinish) { dispatch_async( dispatch_get_main_queue(), ^ { // Remove the activity indicator [_fActivityIndicatorView stopAnimating]; _fActivityIndicatorView.hidden = YES; // Display the sample text for the newly downloaded font NSUInteger sampleIndex = [_fontNames indexOfObject:fontName]; _fTextView.text = [_fontSamples objectAtIndex:sampleIndex]; _fTextView.font = [UIFont fontWithName:fontName size:24.]; // Log the font URL in the console CTFontRef fontRef = CTFontCreateWithName((__bridge CFStringRef)fontName, 0., NULL); CFStringRef fontURL = CTFontCopyAttribute(fontRef, kCTFontURLAttribute); NSLog(@"%@", (__bridge NSURL*)(fontURL)); CFRelease(fontURL); CFRelease(fontRef); if (!errorDuringDownload) { NSLog(@"%@ downloaded", fontName); } }); } else if (state == kCTFontDescriptorMatchingWillBeginDownloading) { dispatch_async( dispatch_get_main_queue(), ^ { // Show a progress bar _fProgressView.progress = 0.0; _fProgressView.hidden = NO; NSLog(@"Begin Downloading"); }); } else if (state == kCTFontDescriptorMatchingDidFinishDownloading) { dispatch_async( dispatch_get_main_queue(), ^ { // Remove the progress bar _fProgressView.hidden = YES; NSLog(@"Finish downloading"); }); } else if (state == kCTFontDescriptorMatchingDownloading) { dispatch_async( dispatch_get_main_queue(), ^ { // Use the progress bar to indicate the progress of the downloading [_fProgressView setProgress:progressValue / 100.0 animated:YES]; NSLog(@"下載進度Downloading %.0f%% complete", progressValue); }); } else if (state == kCTFontDescriptorMatchingDidFailWithError) { // An error has occurred. // Get the error message NSError *error = [(__bridge NSDictionary *)progressParameter objectForKey:(id)kCTFontDescriptorMatchingError]; if (error != nil) { _errorMessage = [error description]; } else { _errorMessage = @"ERROR MESSAGE IS NOT AVAILABLE!"; } // Set our flag errorDuringDownload = YES; dispatch_async( dispatch_get_main_queue(), ^ { _fProgressView.hidden = YES; NSLog(@"下載錯誤Download error: %@", _errorMessage); }); } return (bool)YES; }); } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [_fontNames count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *MyIdentifier = @"MyIdentifier"; // Try to retrieve from the table view a now-unused cell with the given identifier. UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier]; // If no cell is available, create a new one using the given identifier. if (cell == nil) { // Use the default cell style. cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:MyIdentifier]; } // Set up the cell. cell.textLabel.text = _fontNames[indexPath.row]; return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [self asynchronouslySetFontName:_fontNames[indexPath.row]]; // Dismiss the keyboard in the text view if it is currently displayed if ([self.fTextView isFirstResponder]) [self.fTextView resignFirstResponder]; } - (void)viewDidLoad { [super viewDidLoad]; self.fontNames = [[NSArray alloc] initWithObjects: @"STXingkai-SC-Light", @"DFWaWaSC-W5", @"FZLTXHK--GBK1-0", @"STLibian-SC-Regular", @"LiHeiPro", @"HiraginoSansGB-W3", nil]; self.fontSamples = [[NSArray alloc] initWithObjects: @"漢體書寫信息技術標準相", @"容檔案下載使用界面簡單", @"支援服務升級資訊專業制", @"做創意空間快速無線上網", @"兙兛兞兝兡兣嗧瓩糎", @"㈠㈡㈢㈣㈤㈥㈦㈧㈨㈩", nil]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end