UIToolBar

add UIToolBar:

default center: 160, 438

default size: 320, 44

ex:

UIToolBar *toolbar = [[UIToolBar alloc] initWithFrame: CGRectMake(0, 0, 320, 44)];

toolbar.barStyle = UIBarStyleDeafult;

toolbar.center = CGPointMake(160, 438);

設定app icon

icon name:

project -> edit active target -> build -> packaging -> Product Name

UITableView

problem:

table is in view A, when row in table is selected, jump to view B

then jump back to view A, the row is still selected( in blue color)

solution:

in viewWillAppear method of view A:

NSIndexPath *selection = [self.tableView indexPathForSelectedRow];

if(selection)

{

[self.tableView deselectRowAtIndexPath:selection animated:YES];

}

[self.tableView reloadData];

UITextField

set font size in IB:

menu --> font --> show fonts

setHTTPBodyStream

remember to set "Content-Length"

uiapplication sharedapplication

life cycle of iphone app

1.

main.m:

main() --> call UIApplicationMain

2.

application delegate

applicationDidFinishLaunching is called

3.

loading app's main nib file

In info.plist, key NSMainNibFile defines main nib file name

main nib file usually contains a window object, app delegate object, etc