總結 1

當前狀態欄

[UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleBlackOpaque;

設置keywindow 的view ，可以放在全部view的最上層，不會被其他view填充

[[UIApplication sharedApplication].keyWindow addSubview:_nav.view];

[NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(rightPress:) object:rightItem];

取消上一次的事件

自定義導航欄背景

#import "UINavigationBar+customBar.h"
#import <QuartzCore/QuartzCore.h>

@implementation UINavigationBar (customBar)

- (void)drawRect:(CGRect)rect
{
    [[UIImage imageNamed:@"u7_normal"] drawInRect:rect];
}

- (void)customNavigationBar
{
    if ([self respondsToSelector:@selector(setBackgroundColor:)]) {
        [self setBackgroundImage:[UIImage imageNamed:@"u7_normal"] forBarMetrics:UIBarMetricsDefault];
    } else {
        [self drawRect:self.bounds];
    }
    [self drawRoundCornerAndShadow];
}

- (void)drawRoundCornerAndShadow {
    CGRect bounds = self.bounds;
    bounds.size.height +=10;
    UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:bounds
                                                   byRoundingCorners:(UIRectCornerTopLeft | UIRectCornerTopRight)
                                                         cornerRadii:CGSizeMake(10.0, 10.0)];
    CAShapeLayer *maskLayer = [CAShapeLayer layer];
    maskLayer.frame = bounds;
    maskLayer.path = maskPath.CGPath;
    [self.layer addSublayer:maskLayer];
    self.layer.mask = maskLayer;
    self.layer.shadowOffset = CGSizeMake(3, 3);
    self.layer.shadowOpacity = 0.7;
    self.layer.shadowPath = [UIBezierPath bezierPathWithRect:self.bounds].CGPath;
}
@end

定製導航欄按鈕

//
// ILBarButtonItem.m
// Version 1.0
// Created by Isaac Lim (isaacl.net) on 1/1/13.
//

#import "ILBarButtonItem.h"

@interface ILBarButtonItem() {
    id customTarget;
    UIButton *customButton;
}

@end

@implementation ILBarButtonItem

- (id)initWithImage:(UIImage *)image frame:(CGRect)frame
      selectedImage:(UIImage *)selectedImage
             target:(id)target action:(SEL)action {
    
    UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
    [btn setFrame:frame];
    [btn addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
    [btn setImage:image forState:UIControlStateNormal];
    [btn setImage:selectedImage forState:UIControlStateHighlighted];
    
    /* Init method inherited from UIBarButtonItem */
    self = [[ILBarButtonItem alloc] initWithCustomView:btn];

    if (self) {
        /* Assign ivars */
        customButton = btn;
        customImage = image;
        customSelectedImage = selectedImage;
        customTarget = target;
        customAction = action;
    }

    return self;
}

+ (ILBarButtonItem *)barItemWithImage:(UIImage*)image frame:(CGRect)frame
                        selectedImage:(UIImage*)selectedImage
                               target:(id)target
                               action:(SEL)action
{
    return [[ILBarButtonItem alloc] initWithImage:image frame:frame
                                    selectedImage:selectedImage
                                           target:target
                                           action:action];
}

- (void)setCustomImage:(UIImage *)image {
    customImage = image;
    [customButton setImage:image forState:UIControlStateNormal];
}

- (void)setCustomSelectedImage:(UIImage *)image {
    customSelectedImage = image;
    [customButton setImage:image forState:UIControlStateHighlighted];
}

- (void)setCustomAction:(SEL)action {
    customAction = action;
    
    [customButton removeTarget:nil
                        action:NULL
             forControlEvents:UIControlEventAllEvents];
    
    [customButton addTarget:customTarget
                     action:action
           forControlEvents:UIControlEventTouchUpInside];
}

@end

原界面不東，彈出一個新的UINavigationControl

- (void)showCollection: (NSInteger)row
{
    CollectionView *collection = [[CollectionView alloc] init];
    collection.title = [_toolsData objectAtIndex:row];
    [self setNavTitleView:collection];
    collection.back = ^() {
        [_nav release];
    };
    _nav = [[UINavigationController alloc] initWithRootViewController:collection];
    [collection release];
    [_nav.navigationBar customNavigationBar];
    [[UIApplication sharedApplication].keyWindow addSubview:_nav.view];
    __block CGRect frame = _nav.view.frame;
    frame.origin.x = CGRectGetWidth(frame);
    _nav.view.frame = frame;
    [UIView animateWithDuration:0.5 animations:^(){
        frame.origin.x = 0.f;
        _nav.view.frame = frame;
    }];
}

#pragma mark navigator item action
- (void)backBarButtonItem
{
    CGRect frame = self.navigationController.view.frame;
    frame.origin.x = screenWidth;
    [UIView animateWithDuration:0.5 animations:^{
        self.navigationController.view.frame = frame;
    } completion:^(BOOL finished){
        if (finished) {
            [self.navigationController.view removeFromSuperview];
            self.back();
        }
    }];
}

原界面不動，彈出一個view（動畫效果而已）

            ShareView *shareView = [[ShareView alloc] initWithFrame:CGRectMake(screenWidth, 0, screenWidth, screenHeight)];
            [self setNavTitleView:shareView titleName:[_toolsData objectAtIndex:indexPath.row]];
            [app.window.rootViewController.view insertSubview:shareView aboveSubview:app.window.rootViewController.view];
            CGRect frame = shareView.frame;
            frame.origin.x = 0;
            [UIView animateWithDuration:0.5 animations:^(){
                shareView.frame = frame;
            }];
            [shareView release];

- (void)backButton
{
    CGRect frame = self.frame;
    frame.origin.x = screenWidth;
    [UIView animateWithDuration:0.5 animations:^{
        self.frame = frame;
    } completion:^(BOOL finished){
        [self removeFromSuperview];
    }];
}

自動單擊UITableView的cell

    if ([_data count] <= 0) {
        [self addObserver:self forKeyPath:@"data" options:NSKeyValueObservingOptionNew context:nil];
    }
    [self tableView:_tableView didSelectRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0]];
}

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
    [_tableView reloadData];
    [self tableView:_tableView didSelectRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0]];
}

self.navigationItem.hidesBackButton = YES; //隱藏點擊其它返回按鈕時，出現的默認返回按鈕

字符串長度或高度計算方式

#pragma  mark calulator stringOfSize;
- (CGRect)stringOfSize:(NSString *)str font:(UIFont *)font frame:(CGRect)frame
{    
    CGSize titleSize = [str sizeWithFont:font constrainedToSize:CGSizeMake(frame.size.width, MAXFLOAT) lineBreakMode:NSLineBreakByWordWrapping];
    frame = CGRectMake(frame.origin.x, frame.origin.y, titleSize.width, titleSize.height);
    return frame;
}

UIWebView設置頁面字體大小

- (void)setSize:(CGFloat)size
{
    _fontSize = size;
    NSString *jsString = [NSString stringWithFormat:@"<html> \n"
                          "<head> \n"
                          "<style type=\"text/css\"> \n"
                          "body {font-size: %f;}\n"
                          "</style> \n"
                          "</head> \n"
                          "<body>%@</body> \n"
                          "</html>", size, _ariticle.intro];
    [_webView loadHTMLString:jsString baseURL:nil];
}

#pragma mark UIWebView delegate
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    //左右滾動條
    NSString *meta = [NSString stringWithFormat:@"document.getElementsByName(\"viewport\")[0].content = \"width=%f, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no\"", webView.frame.size.width];
    [webView stringByEvaluatingJavaScriptFromString:meta];
    [webView stringByEvaluatingJavaScriptFromString:
     @"var script = document.createElement('script');"
     "script.type = 'text/javascript';"
     "script.text = \"function ResizeImages() { "
     "var myimg,oldwidth;"
     "var maxwidth=280;" //縮放係數
     "for(i=0;i <document.images.length;i++){"
     "myimg = document.images[i];"
     "if(myimg.width > maxwidth){"
     "oldwidth = myimg.width;"
     "myimg.width = maxwidth;"
     "myimg.height = myimg.height * (maxwidth/oldwidth);"
     "}"
     "};"
     "}\";"
     "document.getElementsByTagName('head')[0].appendChild(script);"];
    [webView stringByEvaluatingJavaScriptFromString:@"ResizeImages();"];
    
    //設置scrollview 高度
    CGRect frame = webView.frame;
    CGSize fittingSize = [webView sizeThatFits:CGSizeMake(screenWidth, 0)];
    frame.size = fittingSize;
    webView.frame = frame;
    NSLog(@"內容字體變小 高度有問題， %f", frame.size.height);
    //高度不能一直加
    _scrollView.contentSize = CGSizeMake(screenWidth, _allHeight + webView.frame.size.height);
}

#pragma mark UIWebViewDelegate
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    //左右滾動條
    NSString *meta = [NSString stringWithFormat:@"document.getElementsByName(\"viewport\")[0].content = \"width=%f, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no\"", webView.frame.size.width];
    [webView stringByEvaluatingJavaScriptFromString:meta];
}

網絡請求服務

#import <Foundation/Foundation.h>
typedef void (^FinishNet) (NSMutableData *data);
@interface NetRequest : NSMutableURLRequest <NSURLConnectionDataDelegate>

@property (nonatomic, retain) NSMutableData *data;
@property (nonatomic, retain) NSURLConnection *connection;
@property (nonatomic, copy) FinishNet block;
- (void)startAsynrc;
- (void)cancel;
@end
#import "NetRequest.h"

@implementation NetRequest

- (void)startAsynrc
{
    self.data = [NSMutableData data];
    self.connection = [NSURLConnection connectionWithRequest:self delegate:self];
}

- (void)cancel
{
    [self cancel];
}

#pragma mark NSURLConnectionDataDelegate
// receive data
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [self.data appendData:data];
}
// finish receive
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    self.block(self.data);
}
//error
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    NSLog(@"數據連接錯誤：%@", error);
}
@end
#import <Foundation/Foundation.h>
typedef void (^completion)(id result);
@interface NetDeal : NSObject
+ (void)getNetInfo:(NSString *)urlstring params:(NSArray *)params isGet:(BOOL)get block:(completion)block;
+ (void)getNetFile:(NSString *)urlstring params:(NSArray *)params isGet:(BOOL)get block:(completion)block;
//同步獲取數據
+ (id)getNetFileSynch:(NSString *)urlstring params:(NSArray *)params isGet:(BOOL)get;
@end
#import "NetDeal.h"
#import "NetRequest.h"
@implementation NetDeal
// json
+ (void)getNetInfo:(NSString *)urlstring params:(NSArray *)params isGet:(BOOL)get block:(completion)block
{
    //封裝參數
    if (params != nil) {
        NSMutableString *urlnew = [NSMutableString stringWithString:urlstring];
        for (int i = 0; i < [params count]; i ++) {
            [urlnew appendFormat:@"&%@", [params objectAtIndex:i]];
        }
        urlstring = urlnew;
    }
    //  轉換成NSURL
    NSURL *url = [NSURL URLWithString:urlstring];
    NetRequest *request = [NetRequest requestWithURL:url];
    [request setTimeoutInterval:30];
    if (!get) {
        //do smo
    }
    request.block = ^(NSMutableData *data){
        id result = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
        block(result);
    };
    [request startAsynrc];
}
//file
+ (void)getNetFile:(NSString *)urlstring params:(NSArray *)params isGet:(BOOL)get block:(completion)block
{
    if (params != nil) {
        NSMutableString *urlNew = [NSString stringWithString:urlstring];
        for (int i = 0; i < [params count]; i ++) {
            [urlNew appendFormat:@"&%@", [params objectAtIndex:i]];
        }
        urlstring = urlNew;
    }
    NSURL *url = [NSURL URLWithString:urlstring];
    NetRequest *request = [NetRequest requestWithURL:url];
    [request setTimeoutInterval:30];
    if (!get) {
        
    }
    request.block = ^(NSMutableData *data){
        block(data);
    };
    [request startAsynrc];
}

//同步獲取數據
+ (id)getNetFileSynch:(NSString *)urlstring params:(NSArray *)params isGet:(BOOL)get
{
    if (params != nil) {
        NSMutableString *urlNew = [NSString stringWithString:urlstring];
        for (int i = 0; i < [params count]; i ++){
            [urlNew appendFormat:@"&%@", [params objectAtIndex:i]];
        }
        urlstring = urlNew;
    }
    NSURL *url = [NSURL URLWithString:urlstring];
    NSURLRequest *request = [[[NSURLRequest alloc]initWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10] autorelease];
    NSError *error = nil;
    NSData *received = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&error];
    if (error) {
        NSLog(@"接受數據失敗：%@", error);
        return nil;
    }
    return received;
}
@end

數據庫相關操作（使用FMDB）

#import <Foundation/Foundation.h>

@interface DBService : NSObject
//查詢
- (NSArray *)query:(NSString *)sql;
//增刪改
- (BOOL)update:(NSString *)sql;
@end
#import "DBService.h"
#import "FMDatabase.h"
#import "FMResultSet.h"
#import "DBConnection.h"
@implementation DBService
//查詢
- (NSArray *)query:(NSString *)sql
{
    FMDatabase *base = [[DBConnection getInstance] loadDB:collectionDataBaseName];
    NSMutableArray *list = nil;
    @try {
        FMResultSet *result = [base executeQuery:sql];
        list = [[[NSMutableArray alloc]init] autorelease];
        while ([result next]) {
            int column = [result columnCount];
            for (int i = 0; i < column; i ++){
                NSMutableDictionary *dic = [[NSMutableDictionary alloc]init];
                [dic setObject:[result stringForColumnIndex:i] forKey:[result columnNameForIndex:i]];
                [list addObject:dic];
                [dic release];
            }
        }
    }
    @catch (NSException *exception) {
        NSLog(@"%@", exception);
    }
    @finally {
        [base close];
    }
    return list;
}
//增刪改
- (BOOL)update:(NSString *)sql
{
    BOOL result = NO;
    FMDatabase *base = [[DBConnection getInstance] loadDB:collectionDataBaseName];
    @try {
        result = [base executeUpdate:sql];
    }
    @catch (NSException *exception) {
        NSLog(@"%@", exception);
    }
    @finally {
        [base close];
    }
    return result;
}

@end


#import <Foundation/Foundation.h>
@class FMDatabase;
@interface DBConnection : NSObject
+ (DBConnection *)getInstance;
- (FMDatabase *)loadDB:(NSString *)dbName;
@end

#import "DBConnection.h"
#import "FMDatabase.h"
@implementation DBConnection
static DBConnection *instance = nil;
+ (DBConnection *)getInstance
{
    @synchronized(self)
    {
        if (instance == nil) {
            instance = [[self alloc]init];
        }
    }
    return instance;
}
- (FMDatabase *)loadDB:(NSString *)dbName
{
    FMDatabase *db = [FMDatabase databaseWithPath:[[ToolsClass getDocumentPath] stringByAppendingPathComponent:dbName]];
    if (![db open]) {
        [db release];
        NSLog(@"can't open it");
        return nil;
    }
    return  db;
}

@end