Angular enables flashcards to smoothly transition in and out through sliding

Question

Angular enables flashcards to smoothly transition in and out through sliding

Context

I'm currently developing a flashcard web application using Angular, and I'm facing challenges with implementing smooth sliding transitions for the flashcards. The app allows users to create flashcards through input fields which are then stored as cookies. Users can navigate between flashcards using next/previous buttons and remove cards using the Remove Current Card button. Additionally, clicking on a displayed flashcard flips it over to reveal the content on the back side. However, regardless of whether the user last viewed the front or back of a card, the default behavior always displays the front side when navigating between cards.

Challenge

At present, there is only one HTML element representing each flashcard. When a user clicks next/previous, the current card slides out of view and is replaced by the new card sliding in from the same direction. I aim to modify this behavior so that when a user navigates between cards, the outgoing card slides out in one direction while the incoming card slides in from the opposite direction.

I've tried various approaches including adding additional elements on either side of the actual card and experimenting with CSS transitions and animations, but have not been able to achieve the desired effect seamlessly.

Code Snippet

For demonstration purposes, I have omitted the functionality for dynamically adding and removing flashcards.

var app = angular.module('flashcardApp', []);
app.controller('FlashcardController', function($scope, $timeout) {
  // Controller logic here...
});

In the provided snippet, the issue pertains to the sliding transition of flashcards being uniform in direction rather than alternating sides like an image carousel. Any suggestions or guidance on how to achieve this desired interaction would be highly appreciated!

javascript html css angular

Answer 1

Answer №1

I have come up with a solution that appears to be effective... I am now smoothly moving the card in the desired direction, eliminating the transition effect (transform 0.6s ease) and then relocating the card to the opposite side of the screen before triggering the reverse sliding effect. Occasionally, I have observed a minor glitch or unexpected behavior, so if anyone has an alternate solution, I would greatly appreciate hearing it!

var app = angular.module('flashcardApp', []);
app.controller('FlashcardController', function($scope, $timeout) {
  this.flashcards = [{
      frontContent: 'Front of Card 1',
      backContent: 'Back of Card 1',
      isFlipped: false
    },
    {
      frontContent: 'Front of Card 2',
      backContent: 'Back of Card 2',
      isFlipped: false
    },
    {
      frontContent: 'Front of Card 3',
      backContent: 'Back of Card 3',
      isFlipped: false
    },
    {
      frontContent: 'Front of Card 4',
      backContent: 'Back of Card 4',
      isFlipped: false
    }
  ];

  this.currentCardIndex = 0;
  this.animating = false;

  this.flipCard = function() {
    if (!this.animating) {
      this.flashcards[this.currentCardIndex].isFlipped = !this.flashcards[this.currentCardIndex].isFlipped;a
    }
  };

  this.nextCard = function() {
    if (this.currentCardIndex < this.flashcards.length - 1 && !this.animating) {
      this.animating = true;
      var wrapper = angular.element(document.querySelector('.flashcard-wrapper'));

      this.slideLeft = true;

      $timeout(() => {
        this.currentCardIndex++;
        this.flashcards[this.currentCardIndex].isFlipped = false;

        this.slideLeft = false;
        this.hideCard = true;
        wrapper.css('transition', 'none');

        $timeout(() => {
          this.hideCard = false;
          this.slideRight = true;

          $timeout(() => {
            wrapper.css('transition', 'transform 0.6s ease');

            $timeout(() => {
              this.slideRight = false;
              this.animating = false;
            }, 600);
          }, 20);

        }, 20);

      }, 600);
    }
  };



  this.previousCard = function() {
    if (this.currentCardIndex > 0 && !this.animating) {
      this.animating = true;
      var wrapper = angular.element(document.querySelector('.flashcard-wrapper'));

      this.slideRight = true;

      $timeout(() => {
        this.currentCardIndex--;
        this.flashcards[this.currentCardIndex].isFlipped = false;

        this.slideRight = false;
        this.hideCard = true;
        wrapper.css('transition', 'none');

        $timeout(() => {
          this.hideCard = false;
          this.slideLeft = true;

          $timeout(() => {
            wrapper.css('transition', 'transform 0.6s ease');
    
            $timeout(() => {
              this.slideLeft = false;
              this.animating = false;
            }, 600);
          }, 20);

        }, 20);

      }, 600);
    }
  };

});

body,
html {
  height: 100%;
  margin: 0;
  font-family: 'Arial', sans-serif;
  background-color: #f7f7f7;
  color: #444;
}

.flashcard-container {
  perspective: 1000px;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  position: relative;
}

.flashcard-wrapper {
  width: 50%;
  height: 60vh;
  margin: auto;
  position: relative;
  z-index: 1;
  transition: transform 0.6s ease;
}

.flashcard {
  width: 100%;
  height: 100%;
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  background-color: #ffffff;
  border: 1px solid #e0e0e0;
  position: relative;
  transform-style: preserve-3d;
  cursor: pointer;
  user-select: none;
}

.flashcard,
.front,
.back {
  transition: transform 0.6s ease;
}
...
</div>

Answer 2

I have come up with a solution that appears to be effective... I am now smoothly moving the card in the desired direction, eliminating the transition effect (transform 0.6s ease) and then relocating the card to the opposite side of the screen before triggering the reverse sliding effect. Occasionally, I have observed a minor glitch or unexpected behavior, so if anyone has an alternate solution, I would greatly appreciate hearing it!

var app = angular.module('flashcardApp', []);
app.controller('FlashcardController', function($scope, $timeout) {
  this.flashcards = [{
      frontContent: 'Front of Card 1',
      backContent: 'Back of Card 1',
      isFlipped: false
    },
    {
      frontContent: 'Front of Card 2',
      backContent: 'Back of Card 2',
      isFlipped: false
    },
    {
      frontContent: 'Front of Card 3',
      backContent: 'Back of Card 3',
      isFlipped: false
    },
    {
      frontContent: 'Front of Card 4',
      backContent: 'Back of Card 4',
      isFlipped: false
    }
  ];

  this.currentCardIndex = 0;
  this.animating = false;

  this.flipCard = function() {
    if (!this.animating) {
      this.flashcards[this.currentCardIndex].isFlipped = !this.flashcards[this.currentCardIndex].isFlipped;a
    }
  };

  this.nextCard = function() {
    if (this.currentCardIndex < this.flashcards.length - 1 && !this.animating) {
      this.animating = true;
      var wrapper = angular.element(document.querySelector('.flashcard-wrapper'));

      this.slideLeft = true;

      $timeout(() => {
        this.currentCardIndex++;
        this.flashcards[this.currentCardIndex].isFlipped = false;

        this.slideLeft = false;
        this.hideCard = true;
        wrapper.css('transition', 'none');

        $timeout(() => {
          this.hideCard = false;
          this.slideRight = true;

          $timeout(() => {
            wrapper.css('transition', 'transform 0.6s ease');

            $timeout(() => {
              this.slideRight = false;
              this.animating = false;
            }, 600);
          }, 20);

        }, 20);

      }, 600);
    }
  };



  this.previousCard = function() {
    if (this.currentCardIndex > 0 && !this.animating) {
      this.animating = true;
      var wrapper = angular.element(document.querySelector('.flashcard-wrapper'));

      this.slideRight = true;

      $timeout(() => {
        this.currentCardIndex--;
        this.flashcards[this.currentCardIndex].isFlipped = false;

        this.slideRight = false;
        this.hideCard = true;
        wrapper.css('transition', 'none');

        $timeout(() => {
          this.hideCard = false;
          this.slideLeft = true;

          $timeout(() => {
            wrapper.css('transition', 'transform 0.6s ease');
    
            $timeout(() => {
              this.slideLeft = false;
              this.animating = false;
            }, 600);
          }, 20);

        }, 20);

      }, 600);
    }
  };

});

body,
html {
  height: 100%;
  margin: 0;
  font-family: 'Arial', sans-serif;
  background-color: #f7f7f7;
  color: #444;
}

.flashcard-container {
  perspective: 1000px;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  position: relative;
}

.flashcard-wrapper {
  width: 50%;
  height: 60vh;
  margin: auto;
  position: relative;
  z-index: 1;
  transition: transform 0.6s ease;
}

.flashcard {
  width: 100%;
  height: 100%;
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  background-color: #ffffff;
  border: 1px solid #e0e0e0;
  position: relative;
  transform-style: preserve-3d;
  cursor: pointer;
  user-select: none;
}

.flashcard,
.front,
.back {
  transition: transform 0.6s ease;
}
...
</div>

Angular enables flashcards to smoothly transition in and out through sliding

Answer №1

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