การทำงานกับรูปภาพและมัลติมีเดียใน Flutter

Image.network(  
  'https://example.com/image.jpg',  
  width: 200, // Set the width of the image  
  height: 100, // Set the height of the image  
  fit: BoxFit.cover, // Adjust how the image resizes to fit the widget size  
  loadingBuilder:(BuildContext context, Widget child, ImageChunkEvent loadingProgress) {  
    if(loadingProgress == null) {  
      return child; // Display the image when loading is complete  
    } else {  
      return Center(  
        child: CircularProgressIndicator(  
          value: loadingProgress.expectedTotalBytes != null ? loadingProgress.cumulativeBytesLoaded / loadingProgress.expectedTotalBytes: null,  
       ),  
     ); // Display loading progress  
    }  
  },  
  errorBuilder:(BuildContext context, Object error, StackTrace stackTrace) {  
    return Text('Unable to load image'); // Display an error message when an error occurs  
  },  
)  

Image.asset(  
  'assets/image.jpg',  
  width: 200,  
  height: 100,  
)  

// VideoPlayer- requires adding the video_player plugin  
VideoPlayerController _controller;  
_controller = VideoPlayerController.network('https://example.com/video.mp4');  
VideoPlayer(_controller);  
  
// AudioPlayer- requires adding the audioplayers plugin  
AudioPlayer _player;  
_player = AudioPlayer();  
_player.setUrl('https://example.com/audio.mp3');  
_player.play();  

CachedNetworkImage(  
  imageUrl: 'https://example.com/image.jpg',  
  placeholder:(context, url) => CircularProgressIndicator(), // Display loading progress  
  errorWidget:(context, url, error) => Icon(Icons.error), // Display an error message when an error occurs  
)