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rosenlu / sylon

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Allow deleting one or multiple Pages in DocumentActivity #11

Closed strassan closed 3 years ago

strassan commented 3 years ago

Implement a multi select feature, where a delete icon appears in the upper rroght corner as soon as a Page has been selected.

Selecting a Page can for example work with a long click. A visual cue should tell the user which Pages is selected, e.g. by changing the background color of the card to the primary color.

Make sure this functionality does not conflict with the drag and drop of the pages!

strassan commented 3 years ago

https://developer.android.com/reference/androidx/recyclerview/selection/SelectionTracker

strassan commented 3 years ago

The previous commit is based on this example: https://www.programcreek.com/java-api-examples/?code=material-components%2Fmaterial-components-android%2Fmaterial-components-android-master%2Fcatalog%2Fjava%2Fio%2Fmaterial%2Fcatalog%2Fcard%2FCardSelectionModeActivity.java