IOS call camera, photo album get picture and crop to square

First, using the Uiimagepickercontroller protocol,

-(void) Actionsheet: (Uiactionsheet *) Actionsheet Clickedbuttonatindex: (Nsinteger) Buttonindex

{

if (Buttonindex = = 0) {

Uiimagepickercontroller *picker = [[Uiimagepickercontrolleralloc] init];

Picker.sourcetype =uiimagepickercontrollersourcetypephotolibrary;

Picker.delegate =self;

Picker.allowsediting =yes;//These two words to ensure that the picture can be cropped to square

picker.allowsimageediting=yes;///these two words to ensure that the picture can be cropped to square

[Selfpresentmodalviewcontroller:picker Animated:yes];

}elseif (Buttonindex = = 1) {

Uiimagepickercontroller *picker = [[Uiimagepickercontrolleralloc] init];

Picker.sourcetype =uiimagepickercontrollersourcetypecamera;

Picker.delegate =self;

Picker.allowsediting =yes;

Picker.allowsimageediting=yes;

[Selfpresentmodalviewcontroller:picker Animated:yes];

}

}

-(void) Imagepickercontroller: (Uiimagepickercontroller *) Picker didfinishpickingimage: (UIImage *) Aimage EditingInfo :(nsdictionary *) editinginfo

{

[Headpicsetimage:aimage Forstate:uicontrolstatenormal];

[Picker Dismissmodalviewcontrolleranimated:yes];

}