问题

// Import statements

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_empty); // Assuming you have an Empty Activity layout

        MapView mapView = new MapView(this);
        
        TileStreamProvider tileStreamProvider = new TileStreamProvider() {
            @Override
            public InputStream getTileStream(int row, int col, int zoomLvl) {
                try {
                    String filePath = "path/" + zoomLvl + "/" + row + "/" + col + ".jpg";
                    return new FileInputStream(new File(filePath)); // You can replace this with remote HTTP fetch
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                    return null;
                }
            }
        };
        
        MapViewConfiguration config = new MapViewConfiguration.Builder()
            .levelCount(7)
            .fullWidth(25000)
            .fullHeight(12500)
            .tileSize(256)
            .tileStreamProvider(tileStreamProvider)
            .setMaxScale(2f)
            .build();
        
        mapView.configure(config);
        
        // Add mapView to your layout
        FrameLayout layout = findViewById(R.id.empty_layout); // Replace with your layout's ID
        layout.addView(mapView);
    }
}

Note: Make sure you have added the necessary dependencies and permissions for the MapView library in your project. The layout setup assumes you have a layout XML file named activity_empty.xml with a FrameLayout element having the id empty_layout. Adjust these details according to your project structure.

val mapView = MapView(context)
val tileStreamProvider = object : TileStreamProvider {
   override fun getTileStream(row: Int, col: Int, zoomLvl: Int): InputStream? {
     return FileInputStream(File("path/{zoomLvl}/{row}/{col}.jpg")) // or it can be a remote HTTP fetch
   }
}

val config = MapViewConfiguration(levelCount = 7, fullWidth = 25000, fullHeight = 12500,
                                  tileSize = 256, tileStreamProvider = tileStreamProvider)
                                  .setMaxScale(2f)

/* Configuration */
mapView.configure(config)

答案1

得分: 1

MapView mapView = new MapView(context);

MapViewConfiguration mapViewConfiguration = new MapViewConfiguration(7, 25000, 12500, 256, new TileStreamProvider() {
    @Nullable
    @Override
    public InputStream getTileStream(int i, int i1, int i2) {
        try {
            return new FileInputStream(new File("path/{zoomLvl}/{row}/{col}.jpg")); // or it can be a remote HTTP fetch
        } catch (FileNotFoundException e) {
            // handle error
            return null;
        }
    }
}).setMaxScale(2f);

mapView.configure(mapViewConfiguration);

    MapView mapView = new MapView(context);
    
    MapViewConfiguration mapViewConfiguration = new MapViewConfiguration(7, 25000, 12500, 256, new TileStreamProvider() {
        @Nullable
        @Override
        public InputStream getTileStream(int i, int i1, int i2) {
            try {
                return new FileInputStream(new File("path/{zoomLvl}/{row}/{col}.jpg")); // or it can be a remote HTTP fetch
            } catch (FileNotFoundException e) {
                // handle error
                return null;
            }
        }
    }).setMaxScale(2f);

    mapView.configure(mapViewConfiguration);