EditingViewController.m
上传用户:hechengdz
上传日期:2020-05-13
资源大小:1591k
文件大小:5k
源码类别:
iPhone
开发平台:
Objective-C
- /*
- File: EditingViewController.m
- Abstract:
- Manages editing a single field of data in a Book. Dual mode editor, it supports both plain text field editing
- and date value editing with a UIDatePicker.
- Version: 1.9
- Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
- Inc. ("Apple") in consideration of your agreement to the following
- terms, and your use, installation, modification or redistribution of
- this Apple software constitutes acceptance of these terms. If you do
- not agree with these terms, please do not use, install, modify or
- redistribute this Apple software.
- In consideration of your agreement to abide by the following terms, and
- subject to these terms, Apple grants you a personal, non-exclusive
- license, under Apple's copyrights in this original Apple software (the
- "Apple Software"), to use, reproduce, modify and redistribute the Apple
- Software, with or without modifications, in source and/or binary forms;
- provided that if you redistribute the Apple Software in its entirety and
- without modifications, you must retain this notice and the following
- text and disclaimers in all such redistributions of the Apple Software.
- Neither the name, trademarks, service marks or logos of Apple Inc. may
- be used to endorse or promote products derived from the Apple Software
- without specific prior written permission from Apple. Except as
- expressly stated in this notice, no other rights or licenses, express or
- implied, are granted by Apple herein, including but not limited to any
- patent rights that may be infringed by your derivative works or by other
- works in which the Apple Software may be incorporated.
- The Apple Software is provided by Apple on an "AS IS" basis. APPLE
- MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
- THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
- FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
- OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
- IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
- OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
- MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
- AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
- STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGE.
- Copyright (C) 2008 Apple Inc. All Rights Reserved.
- */
- #import "EditingViewController.h"
- @implementation EditingViewController
- @synthesize textValue, editedObject, editedFieldKey, dateEditing, dateValue, textField, dateFormatter;
- - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
- if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
- // Create a date formatter to convert the date to a string format.
- dateFormatter = [[NSDateFormatter alloc] init];
- [dateFormatter setDateStyle:NSDateFormatterMediumStyle];
- [dateFormatter setTimeStyle:NSDateFormatterNoStyle];
- }
- return self;
- }
- - (void)viewDidLoad {
- // Adjust the text field size and font.
- CGRect frame = textField.frame;
- frame.size.height += 10;
- textField.frame = frame;
- textField.font = [UIFont boldSystemFontOfSize:16];
- // Set the view background to match the grouped tables in the other views.
- self.view.backgroundColor = [UIColor groupTableViewBackgroundColor];
- }
- - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
- // Return YES for supported orientations.
- return (interfaceOrientation == UIInterfaceOrientationPortrait);
- }
- - (void)dealloc {
- [dateFormatter release];
- [datePicker release];
- [textValue release];
- [editedObject release];
- [editedFieldKey release];
- [dateValue release];
- [super dealloc];
- }
- - (IBAction)cancel:(id)sender {
- // cancel edits
- [self.navigationController popViewControllerAnimated:YES];
- }
- - (IBAction)save:(id)sender {
- // save edits
- if (dateEditing) {
- [editedObject setValue:datePicker.date forKey:editedFieldKey];
- } else {
- [editedObject setValue:textField.text forKey:editedFieldKey];
- }
- [self.navigationController popViewControllerAnimated:YES];
- }
- - (void)viewWillAppear:(BOOL)animated {
- NSString *capitalizedKey = [editedFieldKey capitalizedString];
- self.title = capitalizedKey;
- textField.placeholder = capitalizedKey;
- if (dateEditing) {
- textField.enabled = NO;
- if (dateValue == nil) self.dateValue = [NSDate date];
- textField.text = [dateFormatter stringFromDate:dateValue];
- datePicker.date = dateValue;
- } else {
- textField.enabled = YES;
- textField.text = textValue;
- [textField becomeFirstResponder];
- }
- }
- - (IBAction)dateChanged:(id)sender {
- if (dateEditing) textField.text = [dateFormatter stringFromDate:datePicker.date];
- }
- @end