111.獲取根視圖(控制權(quán))的三種方法

注：在項(xiàng)目一種的WXMovie中的GuideViewController中

//設(shè)置window的根視圖

//1通過self.view獲取window

self.view.window.rootViewController= tabBarC;

//2通過APPDelegate對(duì)象獲取window

AppDelegate*appdelegate = [UIApplicationsharedApplication].delegate;

appdelegate.window.rootViewController= tabBarC;

//3直接獲取

[UIApplicationsharedApplication].keyWindow.rootViewController= tabBarC;

222.啟動(dòng)界面的設(shè)置

注：具體代碼在項(xiàng)目一WXMovie中的APPDelegate中

//如果第一啟動(dòng)的話，就在沙盒中設(shè)置一個(gè)值，等到以后每一次運(yùn)行的時(shí)候，都判斷下該值

//1 path路徑

NSString*path = [NSHomeDirectory()stringByAppendingPathComponent:@"Documents/dic.plist"];

//2讀取本地的文件(返回的是字典)

NSDictionary*isFirstDic = [NSDictionarydictionaryWithContentsOfFile:path];

//注：第一次運(yùn)行該值是NO

BOOLnoFirst = [[isFirstDicobjectForKey:@"noFirst"]boolValue];

if(noFirst) {//不是第一次

//進(jìn)入啟動(dòng)界面

LauchViewController*lauchVC = [[LauchViewControlleralloc]init];

self.window.rootViewController= lauchVC;

}else{//是第一次

//引導(dǎo)界面

GuideViewController*guideVC = [[GuideViewControlleralloc]init];

self.window.rootViewController= guideVC;

//創(chuàng)建字典

NSMutableDictionary*dic = [NSMutableDictionarydictionary];

[dicsetObject:@"YES"forKey:@"noFirst"];

//將一個(gè)字典寫入到一個(gè)路徑中(自動(dòng)創(chuàng)建plist文件)

[dicwriteToFile:pathatomically:YES];

}