iphone - Cannot set animation duration -

good day, everyone!

well, i've got simple trouble. i've got catransformlayer 2 sublayers, each "false" doublesided property, , forms double-sided card. problem is, cannot set animation duration or other options, like, example, uiviewanimationcurveeaseinout etc. tried new , old 1 method add animation options , duration layer, but, unfortunately, rotates 0,25 seconds, default value states. what's wrong? suggestions appreciated.

here 's code :

1) initialization of stuff :

    #ifndef supported_macro     #define degrees_to_radians(angle) (angle * m_pi / 180.0)     #endif     - (void)viewdidload     {           [super viewdidload];            [super viewdidload];            catransformlayer *cardcontainer = [catransformlayer layer];           cardcontainer.anchorpoint = cgpointmake( 0.5 , 1.0 ) ;           cardcontainer.position = cgpointmake(100.0, 200.0) ;           cardcontainer.bounds = cgrectmake(0.0, 0.0, 150.0, 170.0);            calayer *cardfront  = [calayer layer]; // front part of card           cardfront.bounds = cgrectmake(0.0, 0.0, cardcontainer.bounds.size.width,     cardcontainer.bounds.size.height) ;           cardfront.frame = cardcontainer.bounds ;           cardfront.contentsgravity  = kcagravityresizeaspect ;           cardfront.bordercolor = [uicolor blackcolor].cgcolor;           cardfront.borderwidth = 2.0;           cardfront.cornerradius = 30.0;           [cardcontainer addsublayer:cardfront];            calayer *cardback  = [calayer layer]; //back part of card           cardback.bounds = cgrectmake(0.0, 0.0, cardcontainer.bounds.size.width, cardcontainer.bounds.size.height) ;           cardback.frame     = cardcontainer.bounds;           cardback.contentsgravity  = kcagravityresizeaspect ;           cardback.bordercolor = [uicolor blackcolor].cgcolor;           cardback.borderwidth = 2.0;           cardback.cornerradius = 30.0;           cardback.doublesided = no;   cardback.transform = catransform3dmakerotation(degrees_to_radians(180.0),0.0,1.0,0.0); [cardcontainer addsublayer:cardback];  ((calayer*)[cardcontainer.sublayers objectatindex:0]).contents = (id)[uiimage imagenamed:@"1.png"].cgimage ; ((calayer*)[cardcontainer.sublayers objectatindex:1]).contents = (id)[uiimage imagenamed:@"2.png"].cgimage ;            tl = cardcontainer ;           [self.view.layer addsublayer:cardcontainer];   } 

2) procedure rotate ( in deprecated style) :

    -(void)rotate     {           static double callcounter = 1.0 ;            auto catransform3d t3d = catransform3didentity;           t3d.m34 = 1.0/-500.0;            [uiview  beginanimations:nil context:null];           [uiview setanimationcurve:uiviewanimationcurveeaseinout];           [uiview setanimationduration:1.75];           tl.sublayertransform = catransform3drotate(t3d, -(callcounter*m_pi) , 1.0, 0.0, 0.0) ;           [uiview commitanimations];            callcounter += 1.0 ;  } 

well, problem simple. thing is, not every property of object can animated. example, can't animate expression :

   int *a = ( int* ) malloc ( 5 * sizeof ( int ) ) ; 

or :

   int x = 5 ; 

or, finally, :

    tl.sublayertransform = catransform3drotate(t3d, -(callcounter*m_pi) , 1.0, 0.0, 0.0) ; 

cause idea of transform property generate matrix, written sublayertransfrom class field. and, compiler, it's same expression, malloc call, or initialising x variable - it's assigment operation. looks like, catransformlayer class has kind of checker, being called if property changes it's value. cocoa automatically send messages when property changes. key-value observation mechanism.

so, animate non-animatable property, decided use catransaction blocks. they're helpfull in such situations. hope, find post useful! sorry english, i'm russia)