How IOS calls system cameras and albums

#import "CameraViewController.h"

@interface Cameraviewcontroller ()

@end

@implementation Cameraviewcontroller

– (void) Viewdidload {

[Super Viewdidload];

Nsarray *arr = @[@ "Call camera", @ "Call Picture library", @ "Turn off lights", @ "Turn off flash"];

for (int i = 0; i < 4; i++) {

UIButton *button = [UIButton buttonwithtype:uibuttontypecustom];

Button.frame = CGRectMake (+) * i + 50, 100, 100);

[Button Settitle:arr[i] forstate: (UIControlStateNormal)];

[Button Settitlecolor:[uicolor Blackcolor] forstate: (UIControlStateNormal)];

if (i = = 0) {

[Button addtarget:self action: @selector (Addcarema) forControlEvents: (UIControlEventTouchUpInside)];

}else if (i = = 1)

{

[Button addtarget:self action: @selector (Openpiclibrary) forControlEvents: (UIControlEventTouchUpInside)];

}else if (i = = 2)

{

[Button addtarget:self action: @selector (Openflashlight) forControlEvents: (UIControlEventTouchUpInside)];

}

else if (i = = 3)

{

[Button addtarget:self action: @selector (Closeflashlight) forControlEvents: (UIControlEventTouchUpInside)];

}

[Self.view Addsubview:button];

}

Do no additional setup after loading the view.

}

-(void) Addcarema

{

The emulator cannot use this feature to determine if the camera can be turned on

if ([Uiimagepickercontroller issourcetypeavailable: (Uiimagepickercontrollersourcetypecamera)]) {

Uiimagepickercontroller *picker = [[Uiimagepickercontroller alloc] init];

Picker.delegate = self;

picker.allowsediting = YES; Whether to edit

Camera

Picker.sourcetype = Uiimagepickercontrollersourcetypecamera;

[Self Presentviewcontroller:picker animated:yes completion:nil];

}else

{

If the user is not prompted

Uialertview *alert = [[Uialertview alloc] initwithtitle:@ "Error" message:@ "You don't have a webcam delegate:nil cancelbuttontitle:@" drat! "Otherbuttontitles:nil, nil];

[Alert show];

}

}

How to execute after the shot is complete

-(void) Imagepickercontroller: (Uiimagepickercontroller *) Picker Didfinishpickingmediawithinfo: (nsdictionary *) info

{

Get Pictures

UIImage *image = [info objectforkey:uiimagepickercontrolleroriginalimage];

Picture in album

Uiimagewritetosavedphotosalbum (image, nil, nil, nil);

[Self dismissviewcontrolleranimated:yes completion:nil];

}

Execute method after clicking Cancel button

-(void) Imagepickercontrollerdidcancel: (Uiimagepickercontroller *) picker

{

[Self dismissviewcontrolleranimated:yes completion:nil];

}

-(void) openpiclibrary

{

Albums can be opened with an emulator

if ([Uiimagepickercontroller issourcetypeavailable:uiimagepickercontrollersourcetypephotolibrary]) {

Uiimagepickercontroller *picker = [[Uiimagepickercontroller alloc] init];

Picker.delegate = self;

picker.allowsediting = YES;

Open album Select photos

Picker.sourcetype = uiimagepickercontrollersourcetypephotolibrary;

[Self Presentviewcontroller:picker animated:yes completion:nil];

}else

{

Uialertview *alert = [[Uialertview alloc] initwithtitle:@ "Error" message:@ "You don't have a webcam delegate:nil cancelbuttontitle:@" drat! "Otherbuttontitles:nil, nil];

[Alert show];

}

}

-(void) openflashlight

{

Avcapturedevice *device = [Avcapturedevice defaultdevicewithmediatype:avmediatypevideo];

if ([device Hastorch]) {

[Device Lockforconfiguration:nil];

[Device Settorchmode:avcapturetorchmodeoff];

[Device unlockforconfiguration];

}

}

-(void) closeflashlight

{

[Self. Avsession stoprunning];

}

– (void) Didreceivememorywarning {

[Super didreceivememorywarning];

Dispose of any of the can is recreated.

}

/*

#pragma mark–navigation

In a storyboard-based application, your'll often want to do a little preparation before navigation

– (void) Prepareforsegue: (Uistoryboardsegue *) Segue Sender: (ID) Sender {

Get the new view controller using [Segue Destinationviewcontroller].

Pass the selected object to the new view controller.

}

*/

@end