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--- ios:study-note [2012/09/07 20:34] – created percy
+++ ios:study-note [2016/05/05 13:07] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== iOS学习笔记 ======
+===== NSUserDefaults =====
+<code>
+    NSString *setting=[[NSBundle mainBundle] pathForResource:@"Settings" ofType:@"bundle"];
+    if (!setting) {
+        return;
+    }
+    NSDictionary *dictionary=[NSDictionary dictionaryWithContentsOfFile:[setting stringByAppendingPathComponent:@"Root.plist"]];
+    NSArray *array = [dictionary objectForKey:@"PreferenceSpecifiers"];
+    NSMutableDictionary *registerToDefault=[NSMutableDictionary dictionaryWithCapacity:[array count]];
+    for (NSDictionary *item in array) {
+         NSString *key = [item objectForKey:@"Key"];
+        if (key) {
+            [registerToDefault setObject:[item objectForKey:@"DefaultValue"] forKey:@"DefaultValue"];
+            break;
+        }
+    }
+    [[NSUserDefaults standardUserDefaults] registerDefaults:registerToDefault];
+</code>
+<code>
+ NSUserDefaults *userDefault=[NSUserDefaults standardUserDefaults];
+    NSString *title = [userDefault objectForKey:@"title_preference"];
+</code>
+===== NavigationController =====
+<code>
+- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
+{
+    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
+    // Override point for customization after application launch.
+    self.window.backgroundColor = [UIColor whiteColor];
+      navigationController=[[UINavigationController alloc] init];
+    RootViewController *rootViewController=[[RootViewController alloc] initWithNibName:@"RootViewController" bundle:nil];
+    rootViewController.title=@"RootView";
+    [navigationController pushViewController:rootViewController animated:YES];
+    [self.window addSubview:[navigationController view]];
+    [self.window makeKeyAndVisible];
+    [rootViewController release];
+    NSUserDefaults *userDefault=[NSUserDefaults standardUserDefaults];
+    NSString *title = [userDefault objectForKey:@"title_preference"];
+    if(!title){
+        [self performSelector:@selector(restoreBundle)];
+    }
+    return YES;
+}
+</code>