简单的动画

[UIView beginAnimations:nil context:nil];[UIView setAnimationDuration:0.3];[UIView setAnimationRepeatCount:10];[UIView setAnimationDelay:1.0];// doing something...    [UIView commitAnimations];

[UIView animateWithDuration:0.3 animations:^{        // doing something...}];

[UIView animateWithDuration:0.3 animations:^{        // doing something...} completion:^(BOOL finished) {        // doing something...}];

[UIView animateKeyframesWithDuration:0.3 delay:1.0 options:UIViewKeyframeAnimationOptionCalculationModeLinear animations:^{        // doing something...} completion:^(BOOL finished) {        // doing something...}];