uiactionsheet--photos from the album to smear, screenshots saved to the album demo completed

In the inheritance UIView create Pidrawerview class,. m affirms an enumeration type Ns_enum,set with Get line type DrawingMode and color settings uicolor

#import <UIKit/UIKit.h>

typedef Ns_enum(Nsinteger, DrawingMode) {

Drawingmodenone = 0,

Drawingmodepaint,

Drawingmodeerase,

};

@interface Pidrawerview:uiview

@property (nonatomic, ReadWrite) DrawingMode DrawingMode;

@property (nonatomic, strong) Uicolor *selectedcolor;

@end

Implementing the declaration in the inheritance UIView.h file

#import "PIDrawerView.h"

@interface Pidrawerview ()

{

Cgpoint Previouspoint;

Cgpoint Currentpoint;

}

@property (nonatomic, Strong) UIImage * viewimage;

@end

@implementation Pidrawerview

-(void) awakefromnib

{

[Self initialize];

}

-(void) DrawRect: (cgrect) rect

{

[Self.viewimage DrawInRect:self.bounds];

}

#pragma mark-setter methods

-(void) Setdrawingmode: (DrawingMode) DrawingMode

{

_drawingmode = DrawingMode;

}

#pragma mark-private methods

-(void) Initialize

{

Currentpoint = cgpointmake (0, 0);

Previouspoint = Currentpoint;

_drawingmode = Drawingmodenone;

_selectedcolor = [Uicolor blackcolor];

}

-(void) eraseline

{

Uigraphicsbeginimagecontext (self.bounds.size);

[Self.viewimage DrawInRect:self.bounds];

Cgcontextsetblendmode (Uigraphicsgetcurrentcontext (), kcgblendmodeclear);

Cgcontextsetlinecap (Uigraphicsgetcurrentcontext (), kcglinecapround);

Cgcontextsetlinewidth (Uigraphicsgetcurrentcontext (), 10);

Cgcontextbeginpath (Uigraphicsgetcurrentcontext ());

Cgcontextsetblendmode (Uigraphicsgetcurrentcontext (), kcgblendmodeclear);

Cgcontextmovetopoint (Uigraphicsgetcurrentcontext (), Previouspoint.x, PREVIOUSPOINT.Y);

Cgcontextaddlinetopoint (Uigraphicsgetcurrentcontext (), Currentpoint.x, CURRENTPOINT.Y);

Cgcontextstrokepath (Uigraphicsgetcurrentcontext ());

Self.viewimage = Uigraphicsgetimagefromcurrentimagecontext ();

Uigraphicsendimagecontext ();

Previouspoint = Currentpoint;

[Self setneedsdisplay];

}

-(void) drawlinenew

{

Uigraphicsbeginimagecontext (self.bounds.size);

[Self.viewimage DrawInRect:self.bounds];

Cgcontextsetlinecap (Uigraphicsgetcurrentcontext (), kcglinecapround);

Cgcontextsetstrokecolorwithcolor (Uigraphicsgetcurrentcontext (), self.selectedColor.CGColor);

Cgcontextsetlinewidth (Uigraphicsgetcurrentcontext (), 10);

Cgcontextbeginpath (Uigraphicsgetcurrentcontext ());

Cgcontextmovetopoint (Uigraphicsgetcurrentcontext (), Previouspoint.x, PREVIOUSPOINT.Y);

Cgcontextaddlinetopoint (Uigraphicsgetcurrentcontext (), Currentpoint.x, CURRENTPOINT.Y);

Cgcontextstrokepath (Uigraphicsgetcurrentcontext ());

Self.viewimage = Uigraphicsgetimagefromcurrentimagecontext ();

Uigraphicsendimagecontext ();

Previouspoint = Currentpoint;

[Self setneedsdisplay];

}

-(void) handletouches

{

if (Self.drawingmode = = Drawingmodenone) {

Do nothing

}

else if (Self.drawingmode = = Drawingmodepaint) {

[Self drawlinenew];

}

Else

{

[Self eraseline];

}

}

#pragma mark-touches methods

-(void) Touchesbegan: (Nsset *) touches withevent: (Uievent *) event

{

Cgpoint p = [[Touches anyobject] locationinview:self];

Previouspoint = p;

}

-(void) touchesmoved: (Nsset *) touches withevent: (Uievent *) event

{

Currentpoint = [[Touches anyobject] locationinview:self];

[Self handletouches];

}

-(void) touchesended: (Nsset *) touches withevent: (Uievent *) event

{

Currentpoint = [[Touches anyobject] locationinview:self];

[Self handletouches];

}

Introduction of Pidrawerview class and mobilecoreservices/mobilecoreservices library files in Viewcontroller

#import "ViewController.h"

#import <MobileCoreServices/MobileCoreServices.h>

#import "PIDrawerView.h"

@interface Viewcontroller () <uiactionsheetdelegate,uiimagepickercontrollerdelegate, Uinavigationcontrollerdelegate>

{

Pidrawerview * VIEWDR;

UIView * Viewimageview;

}

@property (nonatomic, strong) Uicolor *selectedcolor;

@property (nonatomic) Uiimageview * Backgroundimageview;

@end

@implementation Viewcontroller

-(ID) Initwithnibname: (NSString *) Nibnameornil Bundle: (NSBundle *) Nibbundleornil

{

self = [super Initwithnibname:nibnameornil Bundle:nibbundleornil];

if (self) {

Custom initialization

}

return self;

}

-(void) Viewdidload {

[Super Viewdidload];

Viewimageview = [[UIView alloc]initwithframe:cgrectmake (0, 0, self.view.frame.size.width-20, 350)];

[Self.view Addsubview:viewimageview];

_backgroundimageview = [[Uiimageview alloc]initwithframe:viewimageview.bounds];

_backgroundimageview.userinteractionenabled = YES;

VIEWDR = [[Pidrawerview alloc]initwithframe:viewimageview.bounds];

viewdr.userinteractionenabled = YES;

Viewdr.backgroundcolor = [Uicolor Clearcolor];

[Viewimageview Addsubview:_backgroundimageview];

[Viewimageview ADDSUBVIEW:VIEWDR];

Self.selectedcolor = [Uicolor blackcolor];

Start drawing lines

[VIEWDR SetSelectedColor:self.selectedColor];

[VIEWDR SetSelectedColor:self.selectedColor];

UIView * Viewhight = [[UIView alloc]initwithframe:cgrectmake (1, self.view.frame.size.height-50, Self.view.frame.size.width, 100)];

[Self.view Addsubview:viewhight];

UIButton * Buttonq = [[UIButton alloc]initwithframe:cgrectmake (20, 0, 150, 50)];

[Buttonq settitle:@ "edit smear" forstate:uicontrolstatenormal];

[Buttonq addtarget:self Action: @selector (ONLICK2) forcontrolevents:uicontroleventtouchupinside];

[Buttonq Settitlecolor:[uicolor Blackcolor] forstate:uicontrolstatenormal];

[Viewhight Addsubview:buttonq];

UIButton * button = [[UIButton alloc]initwithframe:cgrectmake (150, 0, 150, 50)];

[Button settitle:@ "into the album" Forstate:uicontrolstatenormal];

[Button addtarget:self action: @selector (Onlick) forcontrolevents:uicontroleventtouchupinside];

[Button Settitlecolor:[uicolor Blackcolor] forstate:uicontrolstatenormal];

[Viewhight Addsubview:button];

UIButton * Buttonsave = [[UIButton alloc]initwithframe:cgrectmake (350, 0, 50, 50)];

[Buttonsave settitle:@ "screenshot" Forstate:uicontrolstatenormal];

[Buttonsave Settitlecolor:[uicolor Blackcolor] forstate:uicontrolstatenormal];

[Buttonsave addtarget:self Action: @selector (Saveonlick) forcontrolevents:uicontroleventtouchupinside];

[Viewhight Addsubview:buttonsave];

}

Save

-(void) saveonlick{

Start screenshot

Uigraphicsbeginimagecontextwithoptions (ViewimageView.bounds.size, NO, 2.0);

Path

Cgcontextref context = Uigraphicsgetcurrentcontext ();

//

[Self.view.layer Renderincontext:context];

Image

UIImage *image = Uigraphicsgetimagefromcurrentimagecontext ();

Uiimagewritetosavedphotosalbum (image, Self, @selector (image:didFinishSavingWithError:contextInfo:), nil);

}

-(void) Image: (UIImage *) image didfinishsavingwitherror: (nserror *) error ContextInfo: (void *) contextinfo{

if (Error = = nil) {

Uialertview *alert = [[Uialertview alloc] initwithtitle:@ "Prompt" message:@ "saved to Mobile album" Delegate:self Cancelbuttontitle:nil otherbuttontitles:@ "OK", nil];

[Alert show];

}else{

Uialertview *alert = [[Uialertview alloc] initwithtitle:@ "Prompt" message:@ "Save Failed" Delegate:self Cancelbuttontitle:nil otherbuttontitles:@ "OK", nil];

[Alert show];

}

}

To underline

-(void) onlick2{

[VIEWDR Setdrawingmode:drawingmodepaint];

}

Enter album

-(void) onlick{

Uiactionsheet *actionsheet = [[Uiactionsheet alloc] initwithtitle:@ "Pick" delegate:self cancelbuttontitle:@ "Cancel" Destructivebuttontitle:nil otherbuttontitles:@ "Pick from Library", nil];

[Actionsheet ShowInView:self.view];

}

#pragma mark-uiactionsheetdelegate methods

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

{

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

Mediaui.sourcetype = uiimagepickercontrollersourcetypephotolibrary;

Mediaui.mediatypes = [Uiimagepickercontroller availablemediatypesforsourcetype: Uiimagepickercontrollersourcetypesavedphotosalbum];

mediaui.allowsediting = NO;

Mediaui.delegate = self;

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

}

#pragma mark-uiimagepickercontrollerdelegate methods

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

{

UIImage *image = nil;

if (Picker.sourcetype = = Uiimagepickercontrollersourcetypecamera)

{

image = [info objectforkey:uiimagepickercontrolleroriginalimage];

}

Else

{

NSString *mediatype = [info objectforkey:uiimagepickercontrollermediatype];

if (Cfstringcompare (CFSTRINGREF) mediatype, kuttypeimage, 0) = = Kcfcompareequalto)

{

Image = (UIImage *) [info objectforkey:uiimagepickercontrolleroriginalimage];

}

}

Self.backGroundImageView.image = image;

[Picker Dismissviewcontrolleranimated:yes Completion:nil];

}

uiactionsheet--photos from the album to smear, save to the album demo completed