iOS开发实战-时光记账Demo 本地数据库版
现在记账APP也是用途比较广泛
自己写了个简单的demo 欢迎指正
效果
分析
1.思维推导
首先简单的做了下思维推导
2.文件结构
大致框架想好后就可以着手开始准备了
- 数据库管理：coreData
- 视图管理：navigationcontroller
暂时没有使用cocoapods导入第三方的数据库管理框架
简单的coreData完全可以胜任
说白了就两个页面 主界面 和 记账界面
这是完成时的文件结构
3.数据库设计
- Tally 账单表
- identity :String 唯一标识
-
expenses :double 支出
-
income :double 收入
-
timestamp :date 时间戳
-
关系
- 与TallyDate 日期表:1V1
- 与TallyType 类型表:1V1
-
TallyDate 日期表
- date :string 日期
-
关系
-与Tally 账单表：1VN
-
TallyType 类型表
- typename :string 类型名
- typeicon :string 类型图片标
- 关系
-与Tally 账单表：1VN
4.页面编写
增加账单页面
由于主页只是一个展示的时光轴界面，UIScrollView加几个按钮就能完成，需要读取数据库内容，所以我们先把内页-增加账单 完成。
- view
- UICollectionView展示账单类型
- 自定义View计算器界面计算存储结果
- model
- UICollectionViewCell模型 使用了plist和KVC转字典
- controller
- 负责添加 两个view 及处理两个view的代理
增加账单部分代码
- model
#import <Foundation/Foundation.h>
@interface TallyListCellModel : NSObject
@property (nonatomic,copy)NSString *tallyCellImage;
@property (nonatomic,copy)NSString *tallyCellName;
- (instancetype)initWithDict:(NSDictionary*)dict;
+ (instancetype)tallyListCellModelWithDict:(NSDictionary*)dict;
@end
#import "TallyListCellModel.h"
@implementation TallyListCellModel
- (instancetype)initWithDict:(NSDictionary*)dict {
self = [super init];
if (self) {
[self setValuesForKeysWithDictionary:dict];
}
return self;
}
+ (instancetype)tallyListCellModelWithDict:(NSDictionary*)dict {
return [[TallyListCellModel alloc] initWithDict:dict];
}
@end
- 计算界面
#import <UIKit/UIKit.h>
#import "AppDelegate.h"
#import <CoreData/CoreData.h>
#import "TimeTallyDemo+CoreDataModel.h"
typedef void(^PositionInViewBlock)(CGPoint point);
@protocol CalculatorViewDelegate <NSObject>
//保存成功
- (void)tallySaveCompleted;
//保存失败
- (void)tallySaveFailed;
//回到原来的位置
- (void)backPositionWithAnimation;
@end
@interface CalculatorView : UIView
//类型图片的size
@property(nonatomic,assign)CGSize imageViewSize;
//类型图
@property(nonatomic,strong)UIImage *image;
//类型名
@property(nonatomic,strong)NSString *typeName;
//账单是否存在 判断 是修改还是新增
@property(nonatomic,assign)BOOL isTallyExist;
@property(nonatomic,strong)id<CalculatorViewDelegate> delegate;
//回调image在整个view中的位置
@property(nonatomic,copy)PositionInViewBlock positionInViewBlock;
//修改账单界面进入时传入参数
- (void)modifyTallyWithIdentity:(NSString *)identity;
@end
#import "CalculatorView.h"
@interface CalculatorView()
@property (nonatomic,assign)CGFloat btnWidth; //btn宽
@property (nonatomic,assign)CGFloat btnHeight; //btn高
@property (nonatomic,copy)NSString *nValue; //当前输入值
@property (nonatomic,copy)NSString *resutlStr; //结果值
@property (nonatomic,strong)UILabel *resultLab; //结果栏
@property (nonatomic,strong)UIButton *addBtn; //+
@property (nonatomic,strong)UIColor *btnColor; //按钮颜色
@property (nonatomic,assign)CGColorRef boardLineColor; //边框线条颜色
@property (nonatomic,strong)UIImageView *imageView; //tally类型图
@property(nonatomic,strong)UILabel *typeLab;
@property(nonatomic,copy)NSString *tallyIdentity;
@end
static CGFloat const kBoardWidth = 1;
static CGFloat const kMaxCalCount = 9;
@implementation CalculatorView
- (instancetype)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
self.backgroundColor = [UIColor whiteColor];
self.btnWidth = (self.frame.size.width-kBoardWidth/2)/4;
self.btnHeight = self.frame.size.height/5;
self.nValue = @"";
self.resutlStr = @"";
self.typeLab.text = @"";
self.btnColor = [UIColor grayColor];
self.boardLineColor = [UIColor lightGrayColor].CGColor;
self.layer.borderColor = self.boardLineColor;
self.layer.borderWidth = kBoardWidth;
self.imageView = [[UIImageView alloc] init];
[self addSubview:self.imageView];
[self loadBtn];
}
return self;
}
- (void)setImage:(UIImage *)image {
_image = image;
[NSTimer scheduledTimerWithTimeInterval:1 repeats:NO block:^(NSTimer * _Nonnull timer) {
_imageView.image = image;
}];
}
- (void)setTypeName:(NSString *)typeName {
_typeName = typeName;
self.typeLab.text = typeName;
}
- (void)setImageViewSize:(CGSize)imageViewSize {
_imageViewSize = imageViewSize;
_imageView.frame = CGRectMake(10, (self.btnHeight-imageViewSize.height)/2, imageViewSize.width, imageViewSize.height);
_imageView.backgroundColor = [UIColor clearColor];
//回调实际位置
if (_positionInViewBlock) {
CGPoint point = CGPointMake(10+imageViewSize.width/2, self.frame.origin.y + _imageView.frame.origin.y + imageViewSize.height/2) ;
_positionInViewBlock(point);
}
self.typeLab.frame = CGRectMake(self.imageView.frame.origin.x + self.imageView.frame.size.width + 10, self.imageView.frame.origin.y, imageViewSize.width * 2, imageViewSize.height);
}
//类型名称lab
- (UILabel *)typeLab {
if (!_typeLab) {
_typeLab = [[UILabel alloc] init];
_typeLab.font = [UIFont systemFontOfSize:14];
[self addSubview:_typeLab];
}
return _typeLab;
}
//结果lab
- (UILabel *)resultLab {
if (!_resultLab) {
_resultLab = [[UILabel alloc] initWithFrame:CGRectMake(self.frame.size.width * 0.3, 0, self.frame.size.width * 0.7-10, self.btnHeight)];
_resultLab.text = @"¥ 0.00";
_resultLab.textAlignment = NSTextAlignmentRight;
_resultLab.adjustsFontSizeToFitWidth = YES;
_resultLab.font = [UIFont systemFontOfSize:25];
_resultLab.userInteractionEnabled = YES;
UITapGestureRecognizer *tag = [[UITapGestureRecognizer alloc] init];
tag.numberOfTapsRequired = 1;
[tag addTarget:self action:@selector(clickResultLab)];
[_resultLab addGestureRecognizer:tag];
}
return _resultLab;
}
- (void)clickResultLab {
if ([self.delegate respondsToSelector:@selector(backPositionWithAnimation)]) {
[self.delegate backPositionWithAnimation];
}
}
//加号
- (UIButton *)addBtn {
if (!_addBtn) {
...
[_addBtn addTarget:self action:@selector(clickAdd) forControlEvents:UIControlEventTouchUpInside];
}
return _addBtn;
}
//普通数字btn
- (void)loadBtn {
// 1 - 9 btn
...
[btn addTarget:self action:@selector(clickNumber:) forControlEvents:UIControlEventTouchUpInside];
//0 btn
...
[zeroBtn addTarget:self action:@selector(clickNumber:) forControlEvents:UIControlEventTouchUpInside];
//小数点 btn
...
pointBtn.tag = 99;
[pointBtn addTarget:self action:@selector(clickNumber:)
//重置 btn
...
[resetBtn addTarget:self action:@selector(resetZero) forControlEvents:UIControlEventTouchUpInside];
//DEL btn
...
[delBtn addTarget:self action:@selector(clickDel) forControlEvents:UIControlEventTouchUpInside];
//ok btn
...
[okBtn addTarget:self action:@selector(clickOk) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:self.addBtn];
[self addSubview:self.resultLab];
}
//点击数字按键
- (void)clickNumber:(UIButton*)btn {
if(self.addBtn.isSelected){
self.nValue = @"";
}
NSString *currentValue = @"";
if (btn.tag == 99) {
//有 . 就不加 .
if ([self.nValue rangeOfString:@"."].location == NSNotFound) {
currentValue = @".";
}
}else {
currentValue = [NSString stringWithFormat:@"%ld",(long)btn.tag];
}
self.nValue = [self.nValue stringByAppendingString:currentValue];
//保留小数点后两位
NSRange pointRange = [self.nValue rangeOfString:@"."];
if (pointRange.location != NSNotFound) {
if ([self.nValue substringFromIndex:pointRange.location+1].length > 2) {
self.nValue = [self.nValue substringWithRange:NSMakeRange(0, pointRange.location + 3)];
}
//总位数不超过9 处理小数部分
if ([self.nValue substringToIndex:pointRange.location].length > kMaxCalCount) {
self.nValue = [NSString stringWithFormat:@"%0.2f",[self.nValue doubleValue]];
self.nValue = [self.nValue substringToIndex:kMaxCalCount+3];
}
} else {
//总位数不超过9 整数部分
if (self.nValue.length > kMaxCalCount) {
self.nValue = [NSString stringWithFormat:@"%0.2f",[self.nValue doubleValue]];
self.nValue = [self.nValue substringToIndex:kMaxCalCount];
}
}
//显示数字
self.resultLab.text = [NSString stringWithFormat:@"¥ %.2f",[self.nValue doubleValue]];
self.addBtn.selected = NO;
NSLog(@"new = %@",self.nValue);
}
//单击加号
- (void)clickAdd {
//显示结果 点击后nValue清零
if (!self.addBtn.isSelected) {
self.addBtn.selected = YES;
double result = [self.resutlStr doubleValue] + [self.nValue doubleValue] ;
self.resutlStr = [NSString stringWithFormat:@"%.2f",result];
self.resultLab.text = [NSString stringWithFormat:@"¥ %.2f",[self.resutlStr doubleValue]];
NSLog(@"resutl = %@",self.resutlStr);
}
}
//重置0
- (void)resetZero {
self.resutlStr = @"";
self.nValue = @"";
self.resultLab.text = @"¥ 0.00";
}
//退格
- (void)clickDel {
if (self.nValue.length > 0) {
self.nValue = [self.nValue substringWithRange:NSMakeRange(0, self.nValue.length-1)];
}
NSLog(@"-----%@",self.nValue);
self.resultLab.text = [NSString stringWithFormat:@"¥ %.2f",[self.nValue doubleValue]];
}
//完成
- (void)clickOk {
//存在 使用修改保存方式 不存在 使用新增保存方式
if (self.isTallyExist) {
[self modifyTallySavedWithIdentity:self.tallyIdentity];
} else {
[self addTallySave];
}
}
//增加账单保存
- (void)addTallySave {
if ( ![self.typeLab.text isEqualToString:@""] && [self.nValue doubleValue] != 0) {
[self clickAdd];
//存数据
NSManagedObjectContext *managedObjectContext = ((AppDelegate *)[UIApplication sharedApplication].delegate).persistentContainer.viewContext;
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"yyyy-MM-dd"];
NSString *dateString = [dateFormatter stringFromDate:[NSDate date]];
//查询有无对应的date 有则使用无则创建
NSFetchRequest *fdate = [TallyDate fetchRequest];
NSArray<NSSortDescriptor *> *sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"date" ascending:YES]];
fdate.sortDescriptors = sortDescriptors;
NSPredicate *p = [NSPredicate predicateWithFormat:@"date = %@",dateString];
fdate.predicate = p;
NSArray<TallyDate *> *ss = [managedObjectContext executeFetchRequest:fdate error:nil];
TallyDate *date;
if (ss.count > 0) {
date = ss[0];
} else {
date = [[TallyDate alloc] initWithContext:managedObjectContext];
date.date = dateString;
}
//配置数据
Tally *model = [[Tally alloc] initWithContext:managedObjectContext];
NSFetchRequest *ftype = [TallyType fetchRequest];
NSPredicate *ptype = [NSPredicate predicateWithFormat:@"typename = %@",self.typeLab.text];
ftype.predicate = ptype;
NSArray<TallyType *> *sstype = [managedObjectContext executeFetchRequest:ftype error:nil];
TallyType *type = [sstype firstObject];
//给关系赋值
model.typeship = type;
model.dateship = date;
model.identity = [NSString stringWithFormat:@"%@", [model objectID]];
model.timestamp = [NSDate date];
if ([self.typeLab.text isEqualToString:@"工资"]) {
model.income = [self.resutlStr doubleValue];
model.expenses = 0;
} else {
model.expenses = [self.resutlStr doubleValue];
model.income = 0;
}
//存
[managedObjectContext save:nil];
if ([self.delegate respondsToSelector:@selector(tallySaveCompleted)]) {
[self.delegate tallySaveCompleted];
}
} else {
if ([self.delegate respondsToSelector:@selector(tallySaveFailed)]) {
[self.delegate tallySaveFailed];
}
NSLog(@"不存");
}
}
//修改账单保存
- (void)modifyTallySavedWithIdentity:(NSString *)identity {
[self clickAdd];
if ([self.resutlStr doubleValue] == 0) {
if ([self.delegate respondsToSelector:@selector(tallySaveFailed)]) {
[self.delegate tallySaveFailed];
}
NSLog(@"不存");
return;
}
self.addBtn.selected = NO;
NSManagedObjectContext *managedObjectContext = ((AppDelegate *)[UIApplication sharedApplication].delegate).persistentContainer.viewContext;
//设置账单类型
NSFetchRequest *ftype = [TallyType fetchRequest];
NSPredicate *ptype = [NSPredicate predicateWithFormat:@"typename = %@",self.typeLab.text];
ftype.predicate = ptype;
NSArray<TallyType *> *sstype = [managedObjectContext executeFetchRequest:ftype error:nil];
TallyType *type = [sstype firstObject];
//找出当前账单
NSFetchRequest *fetchRequest = [Tally fetchRequest];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"identity = %@", identity];
[fetchRequest setPredicate:predicate];
NSArray *fetchedObjects = [managedObjectContext executeFetchRequest:fetchRequest error:nil];
//配置当前账单
Tally *tally = [fetchedObjects firstObject];
tally.typeship = type;
if ([self.typeLab.text isEqualToString:@"工资"]) {
tally.income = [self.resutlStr doubleValue];
tally.expenses = 0;
} else {
tally.expenses = [self.resutlStr doubleValue];
tally.income = 0;
}
[managedObjectContext save:nil];
if ([self.delegate respondsToSelector:@selector(tallySaveCompleted)]) {
[self.delegate tallySaveCompleted];
}
}
//修改界面传值
- (void)modifyTallyWithIdentity:(NSString *)identity {
self.tallyIdentity = identity;
NSManagedObjectContext *managedObjectContext = ((AppDelegate *)[UIApplication sharedApplication].delegate).persistentContainer.viewContext;
NSFetchRequest *fetchRequest = [Tally fetchRequest];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"identity = %@", identity];
[fetchRequest setPredicate:predicate];
NSArray *fetchedObjects = [managedObjectContext executeFetchRequest:fetchRequest error:nil];
Tally *tally = [fetchedObjects firstObject];
self.imageView.image = [UIImage imageNamed:tally.typeship.typeicon];
self.typeLab.text = tally.typeship.typename;
self.nValue = tally.income > 0?[NSString stringWithFormat:@"%@",@(tally.income)]:[NSString stringWithFormat:@"%@",@(tally.expenses)];
self.resultLab.text = [NSString stringWithFormat:@"¥ %.2f",[self.nValue doubleValue]];
self.isTallyExist = YES;
}
@end
- 类型选择界面 自定义cell就不贴出来了 就一个图片和label
#import <UIKit/UIKit.h>
#import "TallyListCell.h"
#import <CoreData/CoreData.h>
#import "TimeTallyDemo+CoreDataModel.h"
#import "AppDelegate.h"
@protocol TallyListViewDelegate <NSObject>
//选择对应cell 传递 image title cell的实际位置
- (void)didSelectItem:(UIImage*)cellImage andTitle:(NSString*)title withRectInCollection:(CGRect)itemRect;
//滚动到底
- (void)listScrollToBottom;
@end
@interface TallyListView : UICollectionView
@property(nonatomic,strong)id<TallyListViewDelegate> customDelegate;
@end
#import "TallyListView.h"
@interface TallyListView()<UICollectionViewDelegate,UICollectionViewDataSource>
@property (nonatomic, strong) NSArray *tallyListArray;
@property (nonatomic, assign) CGFloat offsety;
@end
static NSString *cellId = @"tallyListCellID";
@implementation TallyListView
//读取plist数据
- (NSArray *)tallyListArray {
if (!_tallyListArray) {
NSMutableArray *res = [NSMutableArray array];
NSString *path = [[NSBundle mainBundle] pathForResource:@"TallyList" ofType:@"plist"];
NSArray *list = [NSArray arrayWithContentsOfFile:path];
for (NSDictionary *dict in list) {
TallyListCellModel *model = [TallyListCellModel tallyListCellModelWithDict:dict];
[res addObject:model];
}
_tallyListArray = [NSArray arrayWithArray:res];
[self writeToSqlite];
}
return _tallyListArray;
}
- (void)writeToSqlite {
//将类型名字和图片信息写入数据库
NSManagedObjectContext *managedObjectContext = ((AppDelegate*)[UIApplication sharedApplication].delegate).persistentContainer.viewContext;
for (TallyListCellModel *model in self.tallyListArray) {
//查询有无对应的type 有则使用无则创建
NSFetchRequest *fdate = [TallyType fetchRequest];
NSPredicate *p = [NSPredicate predicateWithFormat:@"typename = %@",model.tallyCellName];
fdate.predicate = p;
NSArray<TallyType *> *ss = [managedObjectContext executeFetchRequest:fdate error:nil];
if (ss.count == 0) {
TallyType *type = [[TallyType alloc] initWithContext:managedObjectContext];
type.typename = model.tallyCellName;
type.typeicon = model.tallyCellImage;
[managedObjectContext save:nil];
}
}
}
//初始化
- (instancetype)initWithFrame:(CGRect)frame collectionViewLayout:(UICollectionViewLayout *)layout {
self = [super initWithFrame:frame collectionViewLayout:layout];
if (self) {
self.delegate = self;
self.dataSource = self;
self.backgroundColor = [UIColor clearColor];
[self registerNib:[UINib nibWithNibName:@"TallyListCell" bundle:nil] forCellWithReuseIdentifier:cellId];
}
return self;
}
#pragma mark - UICollectionViewDelegate & UICollectionViewDataSource
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
return self.tallyListArray.count;
}
- (__kindof UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
TallyListCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cellId forIndexPath:indexPath];
cell.cellModel = self.tallyListArray[indexPath.item];
return cell;
}
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
TallyListCell *cell = (TallyListCell*)[collectionView cellForItemAtIndexPath:indexPath];
//cell在collectionView的位置
CGRect cellRect = [collectionView convertRect:cell.frame fromView:collectionView];
//image在cell中的位置
CGRect imgInCellRect = cell.imageView.frame;
CGFloat x = cellRect.origin.x + imgInCellRect.origin.x;
CGFloat y = cellRect.origin.y + imgInCellRect.origin.y + 64 - self.offsety;
//图片在collectionView的位置
CGRect imgRect = CGRectMake(x, y, imgInCellRect.size.width, imgInCellRect.size.height);
//回调
if ([self.customDelegate respondsToSelector:@selector(didSelectItem:andTitle:withRectInCollection:)]){
[self.customDelegate didSelectItem:cell.imageView.image andTitle:cell.imageLab.text withRectInCollection:imgRect];
}
}
//外部调用 用于修改账单传值
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
self.offsety = scrollView.contentOffset.y;
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
CGFloat bottomY = self.contentSize.height - self.frame.size.height;
if (scrollView.contentOffset.y >= bottomY) {
NSLog(@"计算器下去");
if ([self.customDelegate respondsToSelector:@selector(listScrollToBottom)]) {
[self.customDelegate listScrollToBottom];
}
}
}
@end
主页面界面
- model
- 用于传递给账单界面的数据模型
- view
- 时间线绘图
- controller
- 处理时间线视图的删改查
主界面部分代码
- model
#import <Foundation/Foundation.h>
typedef enum : NSUInteger {
TallyMoneyTypeIn = 0,
TallyMoneyTypeOut,
} TallyMoneyType;
@interface TimeLineModel : NSObject
@property(nonatomic,copy)NSString *tallyIconName;
@property(nonatomic,assign)double tallyMoney;
@property(nonatomic,assign)TallyMoneyType tallyMoneyType;
@property(nonatomic,copy)NSString *tallyDate;
@property(nonatomic,copy)NSString *tallyType;
@property(nonatomic,copy)NSString *identity;
@property(nonatomic,assign)double income;
@property(nonatomic,assign)double expense;
@end
- 时间线视图
这里用runtime方法为uibutton分类给时间线上的btn添加了两个属性
keyWithBtn ：用于存储日期
panelBtnType ：用于存储按钮是修改还是删除
typedef enum : NSUInteger {
PanelViewBtnTypeLeft = 0,
PanelViewBtnTypeRight,
} PanelViewBtnType;
//使用runtime 给uibutton扩展 属性
@interface UIButton (BtnWithKey)
@property(nonatomic,copy)NSString *keyWithBtn;
@property(nonatomic,assign)PanelViewBtnType panelBtnType;
@end
static const void *kKeyWithBtn = @"keyWithBtn";
static const void *kPanelBtnType = @"panelBtnType";
@implementation UIButton (BtnWithKey)
- (NSString *)keyWithBtn {
return objc_getAssociatedObject(self, kKeyWithBtn);
}
- (void)setKeyWithBtn:(NSString *)keyWithBtn {
objc_setAssociatedObject(self, kKeyWithBtn, keyWithBtn, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (PanelViewBtnType)panelBtnType {
return [objc_getAssociatedObject(self, kPanelBtnType) intValue];
}
- (void)setPanelBtnType:(PanelViewBtnType)panelBtnType {
objc_setAssociatedObject(self, kPanelBtnType, [NSNumber numberWithUnsignedInteger:panelBtnType], OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
@end
#import "TimeLineView.h"
@interface TimeLineView()
@property(nonatomic,strong)UIView *panelView; //删除、修改 面板
@end
@implementation TimeLineView
- (instancetype)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
}
return self;
}
- (void)drawRect:(CGRect)rect {
CGContextRef context = UIGraphicsGetCurrentContext();
int keyIndex = 0;
CGFloat aDateAllLine = 0;
for (NSString *key in self.timeLineModelsDict.allKeys) {
//读取字典对应key的数组
NSArray<TimeLineModel*> *modelArray = self.timeLineModelsDict[key];
//画线画日期
CGRect dateRect = CGRectMake(self.center.x-kDateWidth/2, aDateAllLine, kDateWidth, kDateWidth);
CGContextAddEllipseInRect(context, dateRect);
CGContextSetFillColorWithColor(context, [UIColor grayColor].CGColor);
CGContextFillPath(context);
CGContextStrokePath(context);
CGRect dateLabRect = CGRectMake(0, aDateAllLine, self.frame.size.width/2-kBtnWidth, kBtnWidth/2);
//日期lab
UILabel *dateLab = [[UILabel alloc] initWithFrame:dateLabRect];
dateLab.textAlignment = NSTextAlignmentRight;
dateLab.text = key;
[dateLab setTextColor:[UIColor blueColor]];
[self addSubview:dateLab];
for (int i = 0 ; i < modelArray.count; i++) {
//画竖线
CGFloat start = aDateAllLine + kDateWidth + i * (kLineHeight+kBtnWidth);
CGFloat end = aDateAllLine + kDateWidth+kLineHeight + i * (kLineHeight+kBtnWidth);
CGContextMoveToPoint(context, self.center.x, start);
CGContextAddLineToPoint(context, self.center.x, end);
CGContextSetLineWidth(context, kLineWidth);
CGContextSetStrokeColorWithColor(context, [UIColor grayColor].CGColor);
CGContextStrokePath(context);
//收支类型btn
CGRect btnRect = CGRectMake(self.center.x-kBtnWidth/2, end, kBtnWidth, kBtnWidth);
UIButton *btn = [[UIButton alloc] initWithFrame:btnRect];
btn.tag = i;
btn.keyWithBtn = key;
[btn setImage:[UIImage imageNamed:modelArray[i].tallyIconName] forState:UIControlStateNormal];
btn.layer.masksToBounds = YES;
[btn addTarget:self action:@selector(clickTallyTypeBtn:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:btn];
//收支情况
CGFloat labX = modelArray[i].tallyMoneyType == TallyMoneyTypeIn ? 0:self.center.x + kBtnWidth;
CGFloat labY = btnRect.origin.y;
CGFloat labWidth = self.frame.size.width/2 - kBtnWidth ;
CGFloat labHeight = btnRect.size.height;
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(labX, labY, labWidth, labHeight)];
label.textAlignment = modelArray[i].tallyMoneyType == TallyMoneyTypeIn ? NSTextAlignmentRight:NSTextAlignmentLeft;
label.text = [NSString stringWithFormat:@"%@ %0.2f",modelArray[i].tallyType,modelArray[i].tallyMoney];
[self addSubview:label];
//最后一条线 最后一条账单不画此线
if (keyIndex < self.timeLineModelsDict.allKeys.count) {
CGFloat lastStart = aDateAllLine;
CGFloat lastEnd = kLineHeight;
CGContextMoveToPoint(context, self.center.x, lastStart);
CGContextAddLineToPoint(context, self.center.x, lastEnd);
CGContextSetLineWidth(context, kLineWidth);
CGContextSetStrokeColorWithColor(context, [UIColor grayColor].CGColor);
CGContextStrokePath(context);
}
}
//当前时间线总长
aDateAllLine = aDateAllLine + kDateWidth + (kBtnWidth+kLineHeight)*modelArray.count + kLineHeight;
keyIndex++;
}
}
//刷新view时清空UI
- (void)setNeedsDisplay {
[super setNeedsDisplay];
for (UIView *view in self.subviews) {
[view removeFromSuperview];
}
}
//点击账单类型按钮
- (void)clickTallyTypeBtn:(UIButton *)btn {
NSLog(@"%@",btn.keyWithBtn);
//清空控制板
if (self.panelView) {
[self.panelView removeFromSuperview];
}
//控制板出现
self.panelView = [[UIView alloc] initWithFrame:CGRectMake(0, btn.frame.origin.y, self.frame.size.width, btn.frame.size.height)];
self.panelView.backgroundColor = [UIColor whiteColor];
self.panelView.userInteractionEnabled = YES;
[self addSubview:self.panelView];
//左按钮 删除
...
leftBtn.panelBtnType = PanelViewBtnTypeLeft;
leftBtn.tag = btn.tag;
leftBtn.keyWithBtn = btn.keyWithBtn;
[leftBtn addTarget:self action:@selector(deleteCurrentTally:) forControlEvents:UIControlEventTouchUpInside];
//右按钮 修改
...
rightBtn.panelBtnType = PanelViewBtnTypeRight;
rightBtn.tag = btn.tag;
rightBtn.keyWithBtn = btn.keyWithBtn;
[rightBtn addTarget:self action:@selector(modifyCurrentTally:) forControlEvents:UIControlEventTouchUpInside];
//中间按钮 收回panelview
...
[middleBtn addTarget:self action:@selector(clickMiddleBtn) forControlEvents:UIControlEventTouchUpInside];
}
//btn出现时动画
- (void)btnShowAnimation:(UIButton*)btn{
//layer动画 左右分开
}
//点击中间按钮 控制板收回
- (void)clickMiddleBtn{
for (UIButton *btn in self.panelView.subviews) {
[self btnDismissAnimation:btn];
}
[NSTimer scheduledTimerWithTimeInterval:0.5 repeats:NO block:^(NSTimer * _Nonnull timer) {
[self.panelView removeFromSuperview];
}];
}
//btn消失时动画
- (void)btnDismissAnimation:(UIButton*)btn{
//两边收回
}
//删除当前账单 回调给controller处理
- (void)deleteCurrentTally:(UIButton*)btn {
if ([self.delegate respondsToSelector:@selector(willChangeValueForKey:)]) {
NSArray<TimeLineModel*>*array = self.timeLineModelsDict[btn.keyWithBtn];
[self.delegate willDeleteCurrentTallyWithIdentity:array[btn.tag].identity];
}
}
//修改当前账单 回调给controller处理
- (void)modifyCurrentTally:(UIButton*)btn {
if ([self.delegate respondsToSelector:@selector(willModifyCurrentTallyWithIdentity:)]) {
NSArray<TimeLineModel*>*array = self.timeLineModelsDict[btn.keyWithBtn];
[self.delegate willModifyCurrentTallyWithIdentity:array[btn.tag].identity];
}
}
@end
- controller
#import "ViewController.h"
#import "AddTallyViewController.h"
#import "TimeLineView.h"
@interface ViewController ()<TimeLineViewDelegate>
@property(nonatomic,strong)UIScrollView *scrollView;
@property(nonatomic,strong)NSDictionary *timeLineModelsDict;
@property(nonatomic,assign)CGFloat allDateAllLine;
@property (weak, nonatomic) IBOutlet UILabel *incomLab;
@property (weak, nonatomic) IBOutlet UILabel *expenseLab;
@end
@implementation ViewController
- (UIScrollView *)scrollView {
if (!_scrollView) {
_scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 64+80, self.view.frame.size.width, self.view.frame.size.height-64-80)];
_scrollView.backgroundColor = [UIColor whiteColor];
}
return _scrollView;
}
- (void)viewDidLoad {
[super viewDidLoad];
NSLog(@"%@",NSHomeDirectory());
self.title = @"我的账本";
[self.view addSubview:self.scrollView];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
//增加一条账单
- (IBAction)clickAddTally:(id)sender {
AddTallyViewController *addVC = [[AddTallyViewController alloc] init];
[self.navigationController pushViewController:addVC animated:YES];
}
//出现时 刷新整个时间线
- (void)viewWillAppear:(BOOL)animated {
NSLog(@"will");
[self showTimeLineView];
}
- (void)showTimeLineView {
//先读取数据库中内容 封装成字典
[self readSqliteData];
//移除上一个timelineView
for (UIView *view in self.scrollView.subviews) {
if (view.tag == 1990) {
[view removeFromSuperview];
}
}
//计算总收入 和 总支出
double incomeTotal = 0;
double expenseTotal = 0;
self.allDateAllLine = 0;
//计算时间线长度
for (NSString *key in self.timeLineModelsDict.allKeys) {
NSArray<TimeLineModel*> *modelArray = self.timeLineModelsDict[key];
//一天的时间线总长
self.allDateAllLine = self.allDateAllLine + kDateWidth + (kBtnWidth+kLineHeight)*modelArray.count + kLineHeight;
for (TimeLineModel *model in modelArray) {
incomeTotal = incomeTotal + model.income;
expenseTotal = expenseTotal + model.expense;
}
}
self.incomLab.text = [NSString stringWithFormat:@"%.2f",incomeTotal];
self.expenseLab.text = [NSString stringWithFormat:@"%.2f",expenseTotal];
//设置时间线视图timelineview
CGRect rect = CGRectMake(0, 0, self.view.frame.size.width, self.allDateAllLine);
TimeLineView *view = [[TimeLineView alloc] initWithFrame:rect];
view.tag = 1990;
view.delegate = self;
view.backgroundColor = [UIColor whiteColor];
view.timeLineModelsDict = self.timeLineModelsDict;
[self.scrollView addSubview:view];
self.scrollView.contentSize = CGSizeMake(self.view.frame.size.width, self.allDateAllLine);
//滚动到顶端
[self.scrollView setContentOffset:CGPointZero animated:YES];
}
//读取数据库中的数据 以字典的形式 key：@"日期" object：[账单信息]
- (void)readSqliteData{
NSManagedObjectContext *managedObjectContext = ((AppDelegate*)[UIApplication sharedApplication].delegate).persistentContainer.viewContext;
self.timeLineModelsDict = nil;
//先查询日期 遍历日期表
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"TallyDate" inManagedObjectContext:managedObjectContext];
[fetchRequest setEntity:entity];
NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"date" ascending:NO];
[fetchRequest setSortDescriptors:[NSArray arrayWithObjects:sortDescriptor, nil]];
NSError *error = nil;
NSArray<TallyDate*> *fetchedObjects = [managedObjectContext executeFetchRequest:fetchRequest error:&error];
NSMutableDictionary *dict = [NSMutableDictionary dictionary];
//再查询该日期下的tally表
for (TallyDate *date in fetchedObjects) {
NSString *key = date.date;
NSFetchRequest *fetchRequest2 = [[NSFetchRequest alloc] init];
NSEntityDescription *entity2 = [NSEntityDescription entityForName:@"Tally" inManagedObjectContext:managedObjectContext];
[fetchRequest2 setEntity:entity2];
//在tally表中 筛选 为该日期的tally 并逆序排列
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"dateship.date = %@",key];
[fetchRequest2 setPredicate:predicate];
NSSortDescriptor *sortDescriptor2 = [[NSSortDescriptor alloc] initWithKey:@"timestamp" ascending:NO];
[fetchRequest2 setSortDescriptors:[NSArray arrayWithObjects:sortDescriptor2, nil]];
NSError *error = nil;
NSArray<Tally*> *fetchedObjects2 = [managedObjectContext executeFetchRequest:fetchRequest2 error:&error];
NSMutableArray *array = [NSMutableArray array];
//遍历 tally表 将表中的每个结果保存下来
for (Tally *tally in fetchedObjects2) {
TimeLineModel *model = [[TimeLineModel alloc] init];
model.tallyDate = tally.dateship.date;
model.tallyIconName = tally.typeship.typeicon;
model.tallyMoney = tally.income > 0 ? tally.income:tally.expenses;
model.tallyMoneyType = tally.income > 0 ? TallyMoneyTypeIn:TallyMoneyTypeOut;
model.tallyType = tally.typeship.typename;
model.identity = tally.identity;
model.income = tally.income;
model.expense = tally.expenses;
[array addObject:model];
}
[dict setObject:array forKey:key];
}
self.timeLineModelsDict = dict;
}
//删除前的确认
- (void)willDeleteCurrentTallyWithIdentity:(NSString*)identity {
UIAlertController *alertVC =[UIAlertController alertControllerWithTitle:@"提示" message:@"确认删除" preferredStyle:UIAlertControllerStyleAlert ];
[alertVC addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
//从数据库中删除 Tally表中对应identity字段行
NSManagedObjectContext *managedObjectContext = ((AppDelegate*)[UIApplication sharedApplication].delegate).persistentContainer.viewContext;
NSFetchRequest *fetchRequest = [Tally fetchRequest];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"identity = %@", identity];
[fetchRequest setPredicate:predicate];
NSError *error = nil;
NSArray *fetchedObjects = [managedObjectContext executeFetchRequest:fetchRequest error:&error];
[managedObjectContext deleteObject:[fetchedObjects firstObject]];
[managedObjectContext save:&error];
//删除完成后 刷新视图
[self showTimeLineView];
}]];
[alertVC addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];
[self presentViewController:alertVC animated:YES completion:nil];
}
//TimeLineViewDelegate delegate 修改前的准备
- (void)willModifyCurrentTallyWithIdentity:(NSString*)identity {
AddTallyViewController *addVC = [[AddTallyViewController alloc] init];
[addVC selectTallyWithIdentity:identity];
[self.navigationController pushViewController:addVC animated:YES];
}
@end
5.结束
由于coredata增删改查时的代码量实在是太大，我们可以优化一下，将数据库操作全部放到一个类中，这样代码逻辑会更清晰一点，可读性更强。
也是也到这里才想到数据库封装。所以刚刚去改了下。
所以上面的代码都包括冗长的coreData操作
创建一个 数据库操作的单例
#import <Foundation/Foundation.h>
#import <CoreData/CoreData.h>
#import "TimeTallyDemo+CoreDataModel.h"
#import "AppDelegate.h"
#import "TimeLineModel.h"
@interface CoreDataOperations : NSObject
@property (strong, nonatomic) NSManagedObjectContext *managedObjectContext;
//单例
+ (instancetype)sharedInstance;
//从数据库中删除 Tally表中对应identity字段行
- (void)deleteTally:(Tally*)object;
//保存
- (void)saveTally;
//读取对应字段
- (Tally*)getTallyWithIdentity:(NSString *)identity;
//获取对应类型
- (TallyType*)getTallyTypeWithTypeName:(NSString*)typeName;
//读取数据库中的数据 以字典的形式 key：@"日期" object：[账单信息]
- (NSDictionary*)getAllDataWithDict;
@end
#import "CoreDataOperations.h"
@interface CoreDataOperations()
@end
@implementation CoreDataOperations
static CoreDataOperations *instance = nil;
+ (instancetype)sharedInstance
{
return [[CoreDataOperations alloc] init];
}
+ (instancetype)allocWithZone:(struct _NSZone *)zone
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
instance = [super allocWithZone:zone];
});
return instance;
}
- (instancetype)init
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
instance = [super init];
if (instance) {
instance.managedObjectContext = ((AppDelegate*)[UIApplication sharedApplication].delegate).persistentContainer.viewContext;
}
});
return instance;
}
//从数据库中删除 Tally表中某一数据
- (void)deleteTally:(Tally*)object {
[self.managedObjectContext deleteObject:object];
}
//保存
- (void)saveTally {
[self.managedObjectContext save:nil];
}
//读取对应字段
- (Tally*)getTallyWithIdentity:(NSString *)identity {
//返回对应账单
}
//获取对应类型
- (TallyType*)getTallyTypeWithTypeName:(NSString*)typeName {
//返回对应账单类型
}
//读取数据库中的数据 以字典的形式 key：@"日期" object：[账单信息]
- (NSDictionary*)getAllDataWithDict{
//遍历查询
return dict;
}
@end
Demo地址
欢迎加星关注
https://github.com/gongxiaokai/TimeTallyDemo
简书地址
http://www.jianshu.com/u/7897b0bd4a55
