在iOS開發(fā)中設置字體的方法有很多種秸应，下面為大家介紹比較常用的三種方法
1.使用系統(tǒng)默認提供的字體
系統(tǒng)默認提供的字體主要是指UIFont中提供的字體匀钧，其使用代碼為：
fontLabel.font = [UIFont fontWithName:@"Marion"size:17];
或者是通過字體詳細字典對字體屬性進行設置
/*UIFontDescriptorFamilyAttribute：設置字體家族名
UIFontDescriptorNameAttribute? ：設置字體的字體名
UIFontDescriptorSizeAttribute? ：設置字體尺寸
UIFontDescriptorMatrixAttribute：設置字體形變*/UIFontDescriptor*attributeFontDescriptor =[UIFontDescriptor fontDescriptorWithFontAttributes:
@{UIFontDescriptorFamilyAttribute:@"Marion",
UIFontDescriptorNameAttribute:@"Marion-Regular",
UIFontDescriptorSizeAttribute: @40.0,
UIFontDescriptorMatrixAttribute:[NSValue valueWithCGAffineTransform:CGAffineTransformMakeRotation(M_1_PI*1.5)
]}];
fnotLabel.font= [UIFont fontWithDescriptor:attributeFontDescriptor size:0.0];
其中的字體家族名和字體名可以通過以下方法獲取
NSLog(@"familyNames：%@",[UIFont familyNames]);
以上兩種方法均可以為label設置字體，但是全部是只針對英文數字突颊，對中文無效。要想改變中文字體還需要使用后面兩種辦法
2.動態(tài)下載字體
iOS6以后蘋果就開始支持動態(tài)下載中文字體已供應用中展示個性字體的需求潘悼，由于下載的時候需要使用的名字是PostScript名稱律秃，需要使用Mac內自帶的應用“字體冊“來獲得相應字體的PostScript名稱。如下顯示了從”字體冊“中獲取《娃娃體-繁常規(guī)體》字體的PostScript名稱的截圖
具體代碼就不一一介紹了挥等，大家可以參考蘋果提供的有關文檔：https://developer.apple.com/library/ios/samplecode/DownloadFont/Listings/DownloadFont_ViewController_m.html#//apple_ref/doc/uid/DTS40013404-DownloadFont_ViewController_m-DontLinkElementID_6
或者也可以參考唐巧先生的博客有比較詳細的介紹：http://blog.devtang.com/blog/2013/08/11/ios-asian-font-download-introduction/
下面是我研究后的測試demo友绝，提供給大家參考：
- (void)asynchronouslySetFontName:(NSString *)fontName
{
UIFont* aFont = [UIFont fontWithName:fontName size:24];//If the font is already downloadedif(aFont && ([aFont.fontName compare:fontName] == NSOrderedSame || [aFont.familyName compare:fontName] ==NSOrderedSame)) {//Go ahead and display the sample text._fLabelView.text =@"歡迎查看我的博客";
_fLabelView.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];
[descs addObject:(__bridgeid)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);doubleprogressValue = [[(__bridge NSDictionary *)progressParameter objectForKey:(id)kCTFontDescriptorMatchingPercentage] doubleValue];if(state ==kCTFontDescriptorMatchingDidBegin) {
dispatch_async( dispatch_get_main_queue(),^{//Show an activity indicatorNSLog(@"Begin Matching");
});
}elseif(state ==kCTFontDescriptorMatchingDidFinish) {
dispatch_async( dispatch_get_main_queue(),^{//Remove the activity indicator//Display the sample text for the newly downloaded font_fLabelView.text =@"歡迎查看我的博客";
_fLabelView.font= [UIFont fontWithName:fontName size:24];//Log the font URL in the consoleCTFontRef 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);
}
});
}elseif(state ==kCTFontDescriptorMatchingWillBeginDownloading) {
dispatch_async( dispatch_get_main_queue(),^{//Show a progress barNSLog(@"Begin Downloading");
});
}elseif(state ==kCTFontDescriptorMatchingDidFinishDownloading) {
dispatch_async( dispatch_get_main_queue(),^{//Remove the progress barNSLog(@"Finish downloading");
});
}elseif(state ==kCTFontDescriptorMatchingDownloading) {
dispatch_async( dispatch_get_main_queue(),^{//Use the progress bar to indicate the progress of the downloadingNSLog(@"Downloading %.0f%% complete", progressValue);
});
}elseif(state ==kCTFontDescriptorMatchingDidFailWithError) {//An error has occurred.//Get the error messageNSError *error = [(__bridge NSDictionary *)progressParameter objectForKey:(id)kCTFontDescriptorMatchingError];if(error !=nil) {
_errorMessage=[error description];
}else{
_errorMessage=@"ERROR MESSAGE IS NOT AVAILABLE!";
}//Set our flagerrorDuringDownload =YES;
dispatch_async( dispatch_get_main_queue(),^{
NSLog(@"Download error: %@", _errorMessage);
});
}return(bool)YES;? ? });? }
只要在相應地方調用就可以了：
- (void)viewDidLoad {
[super viewDidLoad];//Do any additional setup after loading the view, typically from a nib._fLabelView = [[UITextView alloc] initWithFrame:CGRectMake(50,100,250,100)];
[self.view addSubview:_fLabelView];
[self asynchronouslySetFontName:@"HanziPenSC-W3"];
}
下面是運行后的結果：
3.引入外部字體
現在網上不管是windows字體，還是Android字體只要是ttf格式的肝劲，或者是蘋果提供的ttc迁客、otf格式，一般iOS程序都支持內嵌辞槐。具體做法：
先將需要下載的字體拖到項目中
在info文件中添加相應字段
然后就可以使用上面提供的方法[UIFont fontWithName:@"迷你簡咪咪" size:17]方法給英文掷漱、數字或者中文設置上這種字體￠剩可以輸出一下[UIFont familyNames]檢測是否已經添加
也可以在xib中為label設置這種字體了
網上下載的字體也不一定都是可以使用卜范，下面提供大家一些常用字體供大家下載：
鏈接: http://pan.baidu.com/s/1kTVX8qF 密碼: vdwa
要想獲取更加全面的字體還可以使用蘋果自己提供的各種字體格式，還是可以通過Mac應用“字體側”獲取,例如：
用法跟下載的字體一樣
