用户首选项的创建和保存 

  1 //  Copyright 用户首选项的创建和保存
  2 //            1.保存方式:创建一个纯文本文件,或是使用更规范的格式(如XML)来保存
  3 //            2.在数据库中保存首选项
  4 //            3.使用USUserDefault
  5 //
  6 //            USUserInfo常见方法:
  7 //                            1.standardUserDefaults 创建共享默认对象方法
  8 //                            2.objectForKey         返回键的实例方法。保存在许多变体，可以返回特定对象类型,比如字符串、布尔值等
  9 //                            3.setobjectForKey      设置对象值的实例方法。保存在许多变体，可以返回特定对象类型,比如字符串、布尔值等
 10 //                            4.objectForKey         保存共享类对象发生的所有更改的类方法
 11 
 12 
 13 #import "TheadViewController.h"
 14 
 15 @interface TheadViewController ()
 16 
 17 @end
 18 
 19 @implementation TheadViewController
 20 
 21 - (id)initWithStyle:(UITableViewStyle)style
 22 {
 23     self = [super initWithStyle:style];
 24     if (self) {
 25         NSUserDefaults *myDefaults=[NSUserDefaults standardUserDefaults];
 26         
 27         //提取并设置声音值
 28         NSMutableArray *array1=[NSMutableDictionary
 29                                 dictionaryWithObjectsAndKeys:@"Sounds",@"titleValue",
 30                                 @"switch",@"accessoryValue",
 31                                 [NSNumber numberWithBool:[myDefaults boolForKey:@"soundsValue"]],@"prefValue",
 32                                 @"setSounds",@"targetValue",nil];
 33         
 34         //提取并设置音乐值
 35         NSMutableArray *array2=[NSMutableDictionary
 36                                 dictionaryWithObjectsAndKeys:@"Music",@"titleValue",
 37                                 @"switch",@"accessoryValue",
 38                                 [NSNumber numberWithBool:[myDefaults boolForKey:@"MusicValue"]],@"prefValue",   //2
 39                                 @"setMusic",@"targetValue",nil];
 40         
 41         settingList=[NSArray arrayWithObjects:array1,array2,nil];
 42         [settingList retain];
 43         switchList=[NSMutableArray arrayWithCapacity:settingList.count];
 44         
 45         for (int i=0; i<[settingList count]; i++) {
 46             if ([[[settingList objectAtIndex:i]objectForKey:@"accessoryValue"] compare:@"switch"]==NSOrderedSame) {
 47                 //实例一个UISwitch并注册事件
 48                 UISwitch *myswitch=[[[UISwitch alloc]initWithFrame:CGRectZero]autorelease];
 49                 myswitch.on=[[[settingList objectAtIndex:i]objectForKey:@"prefValue"]boolValue];
 50                 [myswitch addTarget:self action:NSSelectorFromString([[settingList objectAtIndex:i]objectForKey:@"targetValue"]) forControlEvents:UIControlEventValueChanged];
 51                 
 52                 [switchList insertObject:myswitch atIndex:i];
 53             }else{
 54                 [switchList insertObject:@"" atIndex:i];
 55             }
 56         }
 57         [switchList retain];
 58         
 59         //将表格下移
 60         CGPoint tableCenter=self.view.center;
 61         self.view.center=CGPointMake(tableCenter.x, tableCenter.y+22);
 62         self.tabBarItem.badgeValue=[NSString stringWithFormat:@"%d",[settingList count]];
 63     }
 64     return self;
 65 }
 66 
 67 - (void)viewDidLoad
 68 {
 69     [super viewDidLoad];
 70     
 71 }
 72 
 73 #pragma mark --执行操作
 74 
 75 -(void)setMusic{
 76     NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];  //1
 77     UISwitch *musicSwitch=[switchList objectAtIndex:1];
 78     [defaults setBool:musicSwitch.on forKey:@"MusicValue"];     //3
 79     [NSUserDefaults resetStandardUserDefaults];  //4
 80 }
 81 
 82 -(void)setSounds{
 83     NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
 84     UISwitch *soundSwitch=[switchList objectAtIndex:0];
 85     [defaults setBool:soundSwitch.on forKey:@"soundsValue"];
 86     [NSUserDefaults resetStandardUserDefaults];
 87     
 88 }
 89 
 90 - (void)didReceiveMemoryWarning
 91 {
 92     [super didReceiveMemoryWarning];
 93     // Dispose of any resources that can be recreated.
 94 }
 95 
 96 #pragma mark - Table view data source
 97 
 98 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
 99 {
100     return 1;
101 }
102 
103 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
104 {
105     return settingList.count;
106 }
107 
108 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
109 {
110     static NSString *CellIdentifier = @"Cell";
111     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
112     if (cell == nil) {
113         cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
114     }
115     cell.textLabel.text=[[settingList objectAtIndex:indexPath.row]objectForKey:@"titleValue"];
116     
117     //将视图放入到数组
118     if ([switchList objectAtIndex:indexPath.row]) {
119         cell.accessoryView=[switchList objectAtIndex:indexPath.row];
120     }
121     
122     return cell;
123 }
124 
125 
126 -(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
127     return @"Audio Preferencess";
128 }
129 
130 #pragma mark - Table view delegate
131 
132 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
133 {
134 }
135 
136 @end

 

posted @ 2013-10-06 11:27  一滴雨、₯㎕  阅读(242)  评论(0)    收藏  举报