Scripting Animation blocks iOS

2 Solutions Collect From Internet About “Scripting Animation blocks iOS”

If you want to store them in, for example, a plist, you can do something like this:

<plist>
<array>
    <dict>
        <key>filename</key>
        <string>first.jpg</string>
        <key>animation</key>
        <string>bounce</string>
        <key>duration</key>
        <real>0.5</real>
    </dict>
    <dict>
        <key>filename</key>
        <string>second.jpg</string>
        <key>animation</key>
        <string>easeinout</string>
        <key>duration</key>
        <real>1.0</real>
    </dict>
    <!-- et cetera -->
</array>
</plist>

Then you can decode this into actual animations by writing something like the following code snippet:

- (void)loadAnimations
{
    NSArray *animations = [NSArray arrayWithContentsOfFile:@"/Users/H2CO3/animations.plist"];
    for (NSDictionary *animation in animations)
    {
        UIImage *img = [UIImage imageNamed:[animation objectForKey:@"filename"]];
        NSString *animationType = [animation objectForKey:@"animation"];
        float duration = [(NSNumber *)[animation objectForKey:@"duration"] floatValue];

        if ([animationType isEqualToString:@"bounce"])
        {
            /* animation block 1 */
        }
        else if ([animationType isEqualToString:@"easeinout"])
        {
            /* animation block 2 */
        }
        /* Et cetera... */
    }
}

It’s not clear to me what benefit you might get from storing the animations in a data store, if that were possible. If you just don’t want to repeat the animation code, you can put it in a method and pass the view(s) to the method.

-(void)jiggle:(UIView *)image {
    [UIView animateWithDuration:.1
                          delay:0
                        options:UIViewAnimationOptionLayoutSubviews
                     animations:^{
                         image.transform = CGAffineTransformMakeRotation(-5 * M_PI / 180);
                     }
                     completion:^(BOOL finished){
                         [UIView animateWithDuration:.1
                                               delay:0
                                             options:UIViewAnimationOptionLayoutSubviews
                                          animations:^{
                                              image.transform = CGAffineTransformMakeRotation(5 * M_PI / 180);
                                          }
                                          completion:^(BOOL finished){
                                              [UIView animateWithDuration:.1
                                                                    delay:0
                                                                  options:UIViewAnimationOptionLayoutSubviews
                                                               animations:^{
                                                                   image.transform = CGAffineTransformMakeRotation(0 * M_PI / 180);
                                                               }
                                                               completion:nil
                                               ];
                                          }
                          ];
                     }
     ];
}