AssetManager.java 文件源码

public static Texture loadTexture( String path )
{
    if ( loadedTextures.containsKey( path ) ) { return loadedTextures.get( path ); }

    FileHandle file = Gdx.files.internal( path );
    if ( !file.exists() )
    {
        loadedTextures.put( path, null );
        return null;
    }

    Texture region = new Texture( path );
    region.setFilter( TextureFilter.Linear, TextureFilter.Linear );
    loadedTextures.put( path, region );

    return region;
}