Picker由系统独立进程实现,应用可以通过拉起Picker组件,用户在Picker上选择对应的资源(如图片、文档等),应用可以获取Picker返回的结果。类型受限权限使用的picker音频ohos.permission.READAUDIO,ohos.permission.WRITEAUDIOAudioViewPicker文件ohos.permission.READDOCUMENT,ohos.permission.WRITEDOCUMENTDocumentViewPicker照片ohos.permission.READIMAGEVIDEO,ohos.permission.WRITEIMAGEVIDEOPhotoViewPicker联系人...