我尝试像这样加载我的Array
,但它只加载第一个Array
,而其他的则不显示。
- (void)viewDidLoad {
[super viewDidLoad];
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
NSString *path = [[documentPaths lastObject] stringByAppendingPathComponent:@"test.plist"];
NSDictionary *myDict = [NSDictionary dictionaryWithContentsOfFile:path];
if ([[NSUserDefaults standardUserDefaults] boolForKey:@"blackKey"])
{
NSArray *black = [myDict objectForKey:@"Black"];
self.tableData = [black copy];
}
else if ([[NSUserDefaults standardUserDefaults] boolForKey:@"greenKey"])
{
NSArray *green = [myDict objectForKey:@"Green"];
self.tableData = [green copy];
}
else if ([[NSUserDefaults standardUserDefaults] boolForKey:@"purpleKey"])
{
NSArray *purple = [myDict objectForKey:@"Purple"];
self.tableData = [purple copy];
}
else if ([[NSUserDefaults standardUserDefaults] boolForKey:@"orangeKey"])
{
NSArray *orange = [myDict objectForKey:@"Orange"];
self.tableData = [orange copy];
}
else if ([[NSUserDefaults standardUserDefaults] boolForKey:@"blueKey"])
{
NSArray *blue = [myDict objectForKey:@"Blue"];
self.tableData = [blue copy];
}
else if ([[NSUserDefaults standardUserDefaults] boolForKey:@"redKey"])
{
NSArray *red = [myDict objectForKey:@"Red"];
self.tableData = [red copy];
}
else if ([[NSUserDefaults standardUserDefaults] boolForKey:@"darkblueKey"])
{
NSArray *darkblue = [myDict objectForKey:@"Darkblue"];
self.tableData = [darkblue copy];
}
else if ([[NSUserDefaults standardUserDefaults] boolForKey:@"yellowKey"])
{
NSArray *yellow = [myDict objectForKey:@"Yellow"];
self.tableData = [yellow copy];
}
}
我做错了什么?
另外,我想将数组标题显示为节标题,如何实现 完成了吗?
- 有没有办法限制每个部分(我的数组)的行数?
编辑
// Customize the number of rows in the table view.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [tableData count];
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
NSDictionary *dict = [tableData objectAtIndex:indexPath.row];
cell.textLabel.text = [NSString stringWithFormat:@"%@ - %@", [dict objectForKey:@"Name"], [dict objectForKey:@"Address"]];
return cell;
}
编辑2
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
[sectionsTitle objectForKey:[sectionTitle objectAtIndex:indexPath.section]];
}
使用未声明的标识符“indexPath”;您的意思是“NSIndexPath”吗?
最佳答案
由于您要将它们分为几个部分,因此您的 tableData 应该是 NSMutableDictionary
您还需要保存字典的键数组
像这样
NSMutableDictionary *resultDic = [[NSMutableDictionary alloc] init];
NSMutableArray *resultArray = [[NSMutableArray alloc] init];
NSDictionary *myDict = [NSDictionary dictionaryWithContentsOfFile:path];
if ([[NSUserDefaults standardUserDefaults] boolForKey:@"blackKey"])
{
NSArray *black = [myDict objectForKey:@"Black"];
//Add the key here
[resultArray addObject:@"Black"];
//Add the key and value
[resultDic setValue:black forKey:@"Black"];
}
else if ([[NSUserDefaults standardUserDefaults] boolForKey:@"greenKey"])
{
NSArray *green = [myDict objectForKey:@"Green"];
//Add the key here
[resultArray addObject:@"Green"];
//Add the key and value
[resultDic setValue:black forKey:@"Green"];
}
//Repeat for all the elements
....
//Then after you finished all the tests and additions
//Assign the result array to your tableData
self.tableData = resultDic;
self.sectionsTitle = resultArray;
现在使用 sectionsTitle
和 tableData
来填充您的表格
对于表中的任何部分,您可以从 [sectionsTitle objectAtIndex:sectionIndex];
获取其标题
要获取节中的所有元素,请使用 [sectionsTitle objectForKey:[sectionTitle objectAtIndex:sectionIndex]];
关于ios - 如何在uitableview中显示和隐藏数组,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11039115/