ViewController UITableView, viewcontroller

ViewController UITableView, viewcontroller

//

// ViewController. m

// CarDemo

//

// Created by GuoYule on 15/1/20.

// Copyright (c) 2015 GuoYule. All rights reserved.

//

# Import "ViewController. h"

# Import "CarGroup. h"

# Import "GYLcar. h"

@ Interface ViewController () <UITableViewDataSource>

/**

* Vehicle brand data

*/

@ Property (nonatomic, strong) NSArray * carGroups;

@ End

@ Implementation ViewController

-(Void) viewDidLoad {

[SuperviewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

}

-(BOOL) prefersStatusBarHidden

{

Return YES;

}

-(NSArray *) carGroups

{

If (_ carGroups = nil ){

// Initialization

// 1. Obtain the full path of plist

NSString * path = [[NSBundlemainBundle] pathForResource: @ "cars_total.plist" ofType: nil];

// 2. Load the Array

NSArray * dictArray = [NSArrayarrayWithContentsOfFile: path];

// 3. convert all the dictionaries in dictArray into model objects and place them in the new array.

NSMutableArray * carGroupsArray = [NSMutableArrayarray];

For (NSDictionary * dictin dictArray ){

// 3. 1. Create a model object

CarGroup * group = [CarGroupgroupWithDict: dict];

//. Add the model object to the array

[CarGroupsArrayaddObject: group];

}

// 4. assign a value

_ CarGroups = carGroupsArray;

}

Return_carGroups;

}

# Pragma mark-Data Source Model

-(NSInteger) numberOfSectionsInTableView :( UITableView *) tableView

{

Return self. carGroups. count;

}

-(NSInteger) tableView :( UITableView *) tableView numberOfRowsInSection :( NSInteger) section

{

CarGroup * group = self. carGroups [section];

Return group. cars. count;

}

-(UITableViewCell *) tableView :( UITableView *) tableView cellForRowAtIndexPath :( NSIndexPath *) indexPath

{

// Define a loop ID

Static NSString * ID = @ "car ";

// 2. Fetch reusable cells from the cache pool

UITableViewCell * cell = [tableViewdequeueReusableCellWithIdentifier: ID];

// 3. If the cache pool does not exist, create a new one and assign the ID to it.

If (cell = nil)

{

Cell = [[UITableViewCellalloc] initWithStyle: UITableViewCellStyleDefaultreuseIdentifier: ID];

}

// 4. Set Data

CarGroup * group = self. carGroups [indexPath. section];

GYLcar * car = group. cars [indexPath. row];

Cell. imageView. image = [UIImageimageNamed: car. icon];

Cell. textLabel. text = car. name;

Return cell;

}

/**

* Header title displayed in section group

*/

-(NSString *) tableView :( UITableView *) tableView titleForHeaderInSection :( NSInteger) section

{

CarGroup * group = self. carGroups [section];

Return group. title;

}

/**

* Returns the string data displayed in the right index hop.

*/

-(NSArray *) sectionIndexTitlesForTableView :( UITableView *) tableView {

Return [self. carGroupsvalueForKeyPath: @ "title"]; // This is an indirect value that KVC can take.

// Why not use [self. carGroups valueForKey: @ "title"] because this value is not indirect

}

@ End