Open Source Document Management Systems

Document Picker for React Native using Document Providers. If the user cancels the document picker without choosing a file (by pressing the system back button on Android or the Cancel button on iOS), the Promise will be rejected with a cancellation error. You can check for this error using DocumentPicker.isCancel(err) allowing you to ignore it and cleanup any parts of your interface that may not be needed anymore. If the user somehow manages to open multiple file pickers (e.g. due the app being unresponsive), then only the picked result from the last opened picker will be considered and the promises from previous opened pickers will be rejected with an error that you can check using DocumentPicker.isInProgress(). If mode is set to open, iOS is giving you secure access to a file located outside from your sandbox. In that case Apple is asking you to release the access as soon as you finish using the resource.