IOS用戶端Coding項目記錄(五)，ios用戶端coding項目

IOS用戶端Coding項目記錄(五)，ios用戶端coding項目

1:統一修改導覽列的樣式，在 AppDelegate.m中

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];    // Override point for customization after application launch.    self.window.backgroundColor = [UIColor whiteColor];        //設定導航條樣式    [self customizeInterface];        if ([Login isLogin]) {        [self setupTabViewController];    }else{        [UIApplication sharedApplication].applicationIconBadgeNumber = 0;        [self setupLoginViewController];    }    [self.window makeKeyAndVisible];    return YES;}- (void)customizeInterface {    //設定Nav的背景色和title色    UINavigationBar *navigationBarAppearance = [UINavigationBar appearance];    NSDictionary *textAttributes = nil;    if (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1) {        [navigationBarAppearance setTintColor:[UIColor whiteColor]];//返回按鈕的箭頭顏色        [[UITextField appearance] setTintColor:[UIColor colorWithHexString:@"0x3bbc79"]];//設定UITextField的游標顏色        [[UITextView appearance] setTintColor:[UIColor colorWithHexString:@"0x3bbc79"]];//設定UITextView的游標顏色        [[UISearchBar appearance] setBackgroundImage:[UIImage imageWithColor:[UIColor colorWithHexString:@"0xe5e5e5"]] forBarPosition:0 barMetrics:UIBarMetricsDefault];        textAttributes = @{                           NSFontAttributeName: [UIFont boldSystemFontOfSize:kNavTitleFontSize],                           NSForegroundColorAttributeName: [UIColor whiteColor],                           };    } else {#if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_7_0        [[UISearchBar appearance] setBackgroundImage:[UIImage imageWithColor:[UIColor colorWithHexString:@"0xe5e5e5"]]];        textAttributes = @{                           UITextAttributeFont: [UIFont boldSystemFontOfSize:kNavTitleFontSize],                           UITextAttributeTextColor: [UIColor whiteColor],                           UITextAttributeTextShadowColor: [UIColor clearColor],                           UITextAttributeTextShadowOffset: [NSValue valueWithUIOffset:UIOffsetZero],                           };#endif    }    [navigationBarAppearance setBackgroundImage:[UIImage imageWithColor:[UIColor colorWithHexString:@"0x28303b"]] forBarMetrics:UIBarMetricsDefault];    [navigationBarAppearance setTitleTextAttributes:textAttributes];}其中上面的版本判斷：FOUNDATION_EXPORT double NSFoundationVersionNumber;#if TARGET_OS_IPHONE#define NSFoundationVersionNumber_iPhoneOS_2_0    678.24#define NSFoundationVersionNumber_iPhoneOS_2_1  678.26#define NSFoundationVersionNumber_iPhoneOS_2_2  678.29#define NSFoundationVersionNumber_iPhoneOS_3_0  678.47#define NSFoundationVersionNumber_iPhoneOS_3_1  678.51#define NSFoundationVersionNumber_iPhoneOS_3_2  678.60#define NSFoundationVersionNumber_iOS_4_0  751.32#define NSFoundationVersionNumber_iOS_4_1  751.37#define NSFoundationVersionNumber_iOS_4_2  751.49#define NSFoundationVersionNumber_iOS_4_3  751.49#define NSFoundationVersionNumber_iOS_5_0  881.00#define NSFoundationVersionNumber_iOS_5_1  890.10#define NSFoundationVersionNumber_iOS_6_0  992.00#define NSFoundationVersionNumber_iOS_6_1  993.00#define NSFoundationVersionNumber_iOS_7_0 1047.20#define NSFoundationVersionNumber_iOS_7_1 1047.25#endif

 

 2:判斷一張view 是否被載入過用 nil == view.superview

        if (nil == view.superview) {     //判斷一個view 是否被載入過    如果被載入過，它的superview就不會是nil            CGRect frame = scrollView0.frame;            frame.origin.x = frame.size.width * page;            frame.origin.y = 0;            view.frame = frame;            [scrollView0 addSubview:view];        }

 

 3:百度地圖初始化座標範圍

- (void)viewDidLoad {    [super viewDidLoad];        [UIApplication sharedApplication].applicationIconBadgeNumber =15;    _mapView=[[BMKMapView alloc] initWithFrame:CGRectMake(0, 0, 320, 400)];    BMKCoordinateRegion region; ////表示範圍的結構體    region.center.latitude  = 24.27;// 中心中    region.center.longitude = 118.06;    region.span.latitudeDelta = 0.1;//經度範圍（設定為0.1表示顯示範圍為0.2的緯度範圍）    region.span.longitudeDelta = 0.1;//緯度範圍    [_mapView setRegion:region];    [self.baiduView addSubview:_mapView];}自訂圖釘的圖片：- (BMKAnnotationView *)mapView:(BMKMapView *)mapView viewForAnnotation:(id <BMKAnnotation>)annotation{    if ([annotation isKindOfClass:[BMKPointAnnotation class]]) {        BMKPinAnnotationView *newAnnotationView = [[BMKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"myAnnotation"];        newAnnotationView.pinColor = BMKPinAnnotationColorPurple;        newAnnotationView.animatesDrop = YES;// 設定該標註點動畫顯示        newAnnotationView.image = [UIImage imageNamed:@"iphone"];   //把圖釘換成別的圖片        return newAnnotationView;    }    return nil;}

 

 4:隱藏鍵盤

當前視圖上有多個uitextfield時，來隱藏鍵盤， 先遍曆視圖的所有子視圖來 如果是UITextField就將其設為非第一響應 當然，如果要隱藏子視圖上的UITextField的話可以進一步判斷view的subviews的個數，如果大於1則遍曆view的子視圖，然後作類似操作//隱藏鍵盤  當前視圖上有多個uitextfieldfor(UIView *view in [self.view subviews]){     if(view is kindofclass:[UITextField Class])    {             [view resignfirstrespond];     }}直接用 [self.view endEditing:NO]直接取消當前Window上的各種view的鍵盤 [[[UIApplication sharedApplication] keyWindow] endEditing:YES];或者使用如下代碼- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(done:)];tapGestureRecognizer.numberOfTapsRequired = 1;[self.view addGestureRecognizer: tapGestureRecognizer];   //只需要點擊非文字輸入地區就會響應hideKeyBoardreturn YES;}

 

 5:UIView中的座標轉換

// 將像素point由point所在視圖轉換到目標視圖view中，返回在目標視圖view中的像素值- (CGPoint)convertPoint:(CGPoint)point toView:(UIView *)view;// 將像素point從view中轉換到當前視圖中，返回在當前視圖中的像素值- (CGPoint)convertPoint:(CGPoint)point fromView:(UIView *)view;// 將rect由rect所在視圖轉換到目標視圖view中，返回在目標視圖view中的rect- (CGRect)convertRect:(CGRect)rect toView:(UIView *)view;// 將rect從view中轉換到當前視圖中，返回在當前視圖中的rect- (CGRect)convertRect:(CGRect)rect fromView:(UIView *)view;例把UITableViewCell中的subview(btn)的frame轉換到 controllerA中// controllerA 中有一個UITableView, UITableView裡有多行UITableVieCell，cell上放有一個button// 在controllerA中實現:CGRect rc = [cell convertRect:cell.btn.frame toView:self.view];或CGRect rc = [self.view convertRect:cell.btn.frame fromView:cell];// 此rc為btn在controllerA中的rect或當已知btn時：CGRect rc = [btn.superview convertRect:btn.frame toView:self.view];或CGRect rc = [self.view convertRect:btn.frame fromView:btn.superview];比如：CGPoint origin = [self convertPoint:CGPointZero toView:[UIApplication sharedApplication].keyWindow];  把self的0點座標系，放到keyWindow的座標系換算一下，獲得一個“絕對的”座標一個在父控制項中的座標為0,0  其實父控制項本來有座標200,200  通過上面可以獲得這個200,200值

 

 6:彈出一個視圖，並有一個背影的視圖（大體代碼）

- (UIView *)myTapBackgroundView{    if (!_myTapBackgroundView) {        _myTapBackgroundView = ({            UIView *view = [[UIView alloc] initWithFrame:kScreen_Bounds];            view.backgroundColor = [UIColor clearColor];            UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(changeShowing)];            [view addGestureRecognizer:tap];            view;        });    }    return _myTapBackgroundView;}- (UIView *)myContentView{    if (!_myContentView) {        _myContentView = ({            UIView *view = [[UIView alloc] initWithFrame:CGRectZero];            view.backgroundColor = [UIColor whiteColor];            view;        });    }    return _myContentView;}- (void)changeShowing{    [kKeyWindow endEditing:YES];    if (!_myContentView) {//未載入過        [self loadUIElement];    }    CGPoint origin = [self convertPoint:CGPointZero toView:kKeyWindow];    CGFloat contentHeight = self.isShowing? 0: kCodeBranchTagButton_ContentHeight;    if (self.isShowing) {//隱藏        self.enabled = NO;        [UIView animateWithDuration:0.3 animations:^{            self.myTapBackgroundView.backgroundColor = [UIColor colorWithWhite:0 alpha:0];            self.myContentView.alpha = 0;            self.myContentView.frame = CGRectMake(0, origin.y-contentHeight, kScreen_Width, contentHeight);            self.imageView.transform = CGAffineTransformRotate(self.imageView.transform, DEGREES_TO_RADIANS(180));        } completion:^(BOOL finished) {            [self.myTapBackgroundView removeFromSuperview];            [self.myContentView removeFromSuperview];            self.enabled = YES;            self.isShowing = NO;        }];    }else{//顯示        self.myContentView.frame = CGRectMake(0, origin.y, kScreen_Width, 0);        [kKeyWindow addSubview:self.myTapBackgroundView];        [kKeyWindow addSubview:self.myContentView];        self.enabled = NO;        [UIView animateWithDuration:0.3 animations:^{            self.myTapBackgroundView.backgroundColor = [UIColor colorWithWhite:0 alpha:0.2];            self.myContentView.alpha = 1.0;            self.myContentView.frame = CGRectMake(0, origin.y-contentHeight, kScreen_Width, contentHeight);            self.imageView.transform = CGAffineTransformRotate(self.imageView.transform, DEGREES_TO_RADIANS(180));        } completion:^(BOOL finished) {            self.enabled = YES;            self.isShowing = YES;        }];    }}其中：#define kScreen_Bounds [UIScreen mainScreen].bounds#define kKeyWindow [UIApplication sharedApplication].keyWindow