iOS development essay implementation of simple animation on the second day

First of all to have a certain understanding of the view, here I do not introduce more,

Let's start with an animation that's basically not used.

First set a view UIView * TestView = [UIView alloc]init];

Determine position self.testView.frame = CGRectMake (0,0,50,50);

Start animation

[UIView Beginanimations:nil Context:nil]

Set the duration of an animation

[UIView setanimationduration:2.0]

Animated property values

Self.testView.frame = rect;

Self.testView.backgroundColor = [Uicolor Bluecolor];

Submit Animation

[UIView commitanimations];

block animation more popular animation methods, there are many details can be explored, many methods, properties can be explored

[UIView animatewithduration: Duration delay: Delay time usingspringwithdamping: Elastic initialspringvelocity: Quick options for animation run: How animations are run options animations:^{

Code that is executed when the animation runs

} completion:^ (BOOL finished) {

Code executed after the animation is complete

}];

Today because of the time relationship, share such a simple animation here

iOS development essay implementation of simple animation on the second day