IOS open-source project (3): dareloadactivity reload button Learning

1 Preface

The button can also achieve a similar loading effect. Today we will learn a button control similar to the reload effect.

2. Details

This control uses the cabasicanimation and caanimation classes in the quartzcore framework for animation control and uses the cabasicanimation proxy method. Let's take a look at some of the code below:

Zyreloadactivitybutton. h:

 

# Import <uikit/uikit. h> @ interface zyreloadactivitybutton: uibutton {bool animating;} @ property (nonatomic) cgfloat animationduration; // determines whether it is an animation state-(bool) isanimating; // start animation-(void) startanimating; // stop the animation-(void) stopanimating;-(void) spin; @ end

 

Zyviewcontroller. M:

 

// Button listening event-(void) animate :( zyreloadactivitybutton *) button {// if it is a navigationbaritem button if (Button = navigationbaritem) {[Button spin];} else {// non-navigationbaritem button if ([Button isanimating]) {[Button stopanimating];} else {[Button startanimating] ;}}

 

Running result:

When you click the button in the upper-right corner, it will rotate once and then stop. When you click the button in the center of the screen, it will continue to rotate until you click again and then stop.

3 conclusion

The above is all content and I hope it will help you.

Demo: http://download.csdn.net/detail/u010013695/5460101