Contacts (Practice)

#import <UIKit/UIKit.h>

@interface Rootviewcontroller:uiviewcontroller <UITableViewDataSource,UITableViewDelegate>

@end

#import "RootViewController.h"

#import "SecondViewController.h"

@interface Rootviewcontroller () {

Nsmutablearray *dataarr;

UITableView *mytableview;

}

@end

@implementation Rootviewcontroller

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

{

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

if (self) {

Custom initialization

}

return self;

}

-(void) Viewwillappear: (BOOL) animated

{

Refresh TableView When returning from the previous interface

[Mytableview Reloaddata];

}

-(void) Presenttosecondviewcontroller

{

Secondviewcontroller *svc = [[Secondviewcontroller alloc]init];

Svc.arr = Dataarr;

[Self presentviewcontroller:svc animated:yes completion:nil];

}

-(void) viewdidload

{

[Super Viewdidload];

Do any additional setup after loading the view.

if ([Self respondstoselector: @selector (setautomaticallyadjustsscrollviewinsets:)]) {

Self.automaticallyadjustsscrollviewinsets = NO;

}

Single-instance object for obtaining Nsuserdefaults

Nsuserdefaults *ud = [Nsuserdefaults standarduserdefaults];

Find the stored array by key

Dataarr = [ud objectforkey:@ "VVVV"];

if (!dataarr.count) {

If the value is not taken, re-open the space and assign a value

If not found, it is a null pointer, and any operation of the null pointer is

Dataarr = [[Nsmutablearray alloc]init];

for (int i = 0; i < 9; i++) {

Nsdictionary *dic = [nsdictionary dictionarywithobjectsandkeys:[nsstring stringwithformat:@ "character%d", i],@ "PersonName", [NSString stringwithformat:@ "135000012%02d", i],@ "PhoneNumber", nil];

In the array are dictionaries, each dictionary has 2 key-value pairs, each representing a name and a phone number

[Dataarr Addobject:dic];

}

Put the array into UD via key, and synchronize

[UD Setobject:dataarr forkey:@ "VVVV"];

[UD Synchronize];

}

Mytableview = [[UITableView alloc]initwithframe:cgrectmake (0, +, +, 480-64) Style:uitableviewstyleplain];

Mytableview.delegate = self;

Mytableview.datasource = self;

[Self.view Addsubview:mytableview];

Uibarbuttonitem *bbi = [[Uibarbuttonitem alloc]initwithtitle:@ "+" style:uibarbuttonitemstylebordered target:self Action: @selector (Presenttosecondviewcontroller)];

Self.navigationItem.rightBarButtonItem = BBI;

}

#pragma mark-tableview

-(CGFloat) TableView: (UITableView *) TableView Heightforrowatindexpath: (Nsindexpath *) Indexpath

{

return 50;

}

-(Nsinteger) TableView: (UITableView *) TableView numberofrowsinsection: (nsinteger) Section

{

return dataarr.count;

}

-(UITableViewCell *) TableView: (UITableView *) TableView Cellforrowatindexpath: (Nsindexpath *) Indexpath

{

UITableViewCell *cell = [TableView dequeuereusablecellwithidentifier:@ "Qwq"];

if (cell = = nil) {

cell = [[UITableViewCell alloc]initwithstyle:uitableviewcellstylesubtitle reuseidentifier:@ "Qwq"];

}

Cell.textLabel.text = [[Dataarr objectAtIndex:indexPath.row] objectforkey:@ "PersonName"];

Cell.detailTextLabel.text = [[Dataarr objectAtIndex:indexPath.row] objectforkey:@ "PhoneNumber"];

return cell;

}

-(void) TableView: (UITableView *) TableView Didselectrowatindexpath: (Nsindexpath *) Indexpath

{

Secondviewcontroller *svc = [[Secondviewcontroller alloc]init];

Data source pointer passing through

Svc.arr = Dataarr;

Click on the first few

SVC.I = Indexpath.row;

With 1 for push past, if you do not pass the default of 0, it is to play the past

SVC.J = 1;

[Self.navigationcontroller pushviewcontroller:svc Animated:yes];

}

#import <UIKit/UIKit.h>

@interface Secondviewcontroller:uiviewcontroller

Receive the data source from the previous page

@property (Nonatomic,retain) Nsmutablearray *arr;

The last page clicked on the first few cells

@property (nonatomic,assign) int i;

(If the push-over J is equal to 1, the bounce is 0.)

@property (nonatomic,assign) Int J;

@end

#import "SecondViewController.h"

@interface Secondviewcontroller () {

Uitextfield *TF1;

Uitextfield *TF2;

}

@end

@implementation Secondviewcontroller

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

{

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

if (self) {

Custom initialization

}

return self;

}

-(void) Okbclick

{

if (!tf1.text.length | |!tf2.text.length) {

Uialertview *av = [[Uialertview alloc]initwithtitle:@ "Write" Message:nil delegate:nil cancelbuttontitle:@ "Good" Otherbuttontitles:nil];

[AV show];

Return

}

Click Save if there are values in 2 tf, create a dictionary to record the information

Nsdictionary *dic = [nsdictionary dictionarywithobjectsandkeys:tf1.text,@ "PersonName", tf2.text,@ "PhoneNumber", nil] ;

Nsuserdefaults *ud = [Nsuserdefaults standarduserdefaults];

if (SELF.J) {

If the push comes over, delete the original, add the new one (modify)

[_arr REMOVEOBJECTATINDEX:SELF.I];

[_arr insertobject:dic ATINDEX:SELF.I];

[UD Setobject:_arr forkey:@ "VVVV"];

[UD Synchronize];

[Self.navigationcontroller Popviewcontrolleranimated:yes];

Return

}

If it's bouncing, add the dictionary directly to the data source (new)

[_arr Addobject:dic];

[UD Setobject:_arr forkey:@ "VVVV"];

[UD Synchronize];

[Self dismissviewcontrolleranimated:yes completion:nil];

}

-(void) viewdidload

{

[Super Viewdidload];

Do any additional setup after loading the view.

Self.view.backgroundColor = [Uicolor Whitecolor];

TF1 = [[Uitextfield Alloc]initwithframe:cgrectmake (50, 80, 220, 30)];

Tf1.backgroundcolor = [Uicolor Graycolor];

[Self.view ADDSUBVIEW:TF1];

TF2 = [[Uitextfield alloc]initwithframe:cgrectmake (50, 120, 220, 30)];

Tf2.backgroundcolor = [Uicolor Graycolor];

[Self.view ADDSUBVIEW:TF2];

If it's a push, write down the name and phone number.

if (SELF.J) {

Tf1.text = [[Self.arr objectatindex:_i] objectforkey:@ "PersonName"];

Tf2.text = [[Self.arr objectatindex:_i] objectforkey:@ "PhoneNumber"];;

}

UIButton *OKB = [UIButton buttonwithtype:uibuttontypecustom];

Okb.frame = CGRectMake (100, 170, 120, 40);

[OKB settitle:@ "Save" forstate:uicontrolstatenormal];

[OKB Settitlecolor:[uicolor Bluecolor] forstate:uicontrolstatenormal];

[OKB addtarget:self Action: @selector (Okbclick) forcontrolevents:uicontroleventtouchupinside];

[Self.view ADDSUBVIEW:OKB];

}

Contacts (Practice)