Ios development: Implementation of simple animation on the second day, and ios development on the second day

Ios development: Implementation of simple animation on the second day, and ios development on the second day

First of all, you should have some knowledge about views. I will not introduce them here,

First, let's talk about a head-and-tail animation that is basically no longer used.

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

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

Start Animation

[UIView beginAnimations: nil context: nil]

Set animation duration

[UIView setAnimationDuration: 2.0]

Animated Attribute Value

Self. testView. frame = rect;

Self. testView. backgroundColor = [UIColor blueColor];

Submit an animation

[UIView commitAnimations];

 

Block animation is a popular animation method. There are many details to explore, many methods, and attributes to explore.

[UIView animateWithDuration: duration delay: latency usingSpringWithDamping: flexible initialSpringVelocity: animation Running Speed options: animation running mode option animations: ^ {

Code executed during animation running

} Completion: ^ (BOOL finished ){

Code executed after the animation is completed

}];

 

Today, due to the time relationship, we will share such a simple animation here.