排序
AVFoundation – AVAssetImageGenerator 获取多帧图片
AVAssetImageGenerator 获取多帧图片 - AVAssetImageGenerator 是用来提供视频的缩略图或预览视频的帧的类.可以用AVAsset 来初始化,例如: + (instancetype)assetImageGeneratorWithAsset:(AVA...
AVFoundation – AVAssetImageGenerator 截图
AVAssetImageGenerator 截图 - AVAssetImageGenerator 是用来提供视频的缩略图或预览视频的帧的类.可以用AVAsset 来初始化, + (instancetype)assetImageGeneratorWithAsset:(AVAsset *)asset; ...
AVFoundation – AVMetadataItem 获取媒体属性元数据
AVMetadataItem 获取媒体属性元数据 - AVAsset 和 AVAssetTrack 都可以实现查询相关元数据的功能.一般使用 AVAsset 提供的元数据当涉及获取曲目一级元数据等情况时会使用 AVAssetTrack ,注意:...
Xcode – Your maximum App ID limit has been reached. You may create up to 10 App IDs every 7 days
Xcode - Your maximum App ID limit has been reached. You may create up to 10 App IDs every 7 days - 1.出现这种情况,直接用上一次的 Bundle ID 就行了,因为免费 App ID 账号苹果官方有所限...
Xcode – Embedded binary’s bundle identifier is not prefixed with the parent app’s bundle identifier
Xcode - Embedded binary's bundle identifier is not prefixed with the parent app's bundle identifier - 如果是直接从网上下载的工程,首先检查工程 TARGETS 下的 Bundle Identifier 是否已...
Xcode – This app has attempted to access privacy-sensitive data without a usage description.
Xcode - This app has attempted to access privacy-sensitive data without a usage description.
Object-C 保存文件到相册
Object-C 保存文件到相册 1.UIImageWriteToSavedPhotosAlbum 2.AssetsLibrary 3.PHPhotoLibrary Xcode – This app has attempted to access privacy-sensitive data without a usage descripti...
Object-C 加载 TTF/OTF/TTC 文件
Object-C 加载 TTF/OTF/TTC 文件 - /* *函数描述:加载字体并返回 * *参数: * fontName : 字体名字,并非字体文件 * fontSize : 字体大小 * *返回值:加载成功,返回字体,加载失败,返回nil...