嗨，我是 iphone 应用程序开发的新手。我想为我的 uiscroll 视图使用页面控制器。在单个视图中，我使用两个滚动视图和两个页面控件。我使用以下编码设置了 pagecontrol，但只有两个页面工作正常。但我想添加包含静态按钮的滚动视图超过两页。！[在此处输入图像描述][1]
//
// newsampleViewController.m
// newsample
//
// Created by SmartJobDevelopers on 4/3/12.
// Copyright 2012 __MyCompanyName__. All rights reserved.
//
#import "newsampleViewController.h"
@implementation newsampleViewController
@synthesize scr_anger;
@synthesize scr_sketch;
@synthesize pageControl;
@synthesize pageControl1;
/*
// The designated initializer. Override to perform setup that is required before the view is loaded.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
*/
/*
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
}
*/
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[self setupPage];
//[scr_anger setScrollEnabled:YES];
//[scr_anger setContentSize:CGSizeMake(1290,15)];
//[scr_sketch setScrollEnabled:YES];
//[scr_sketch setContentSize:CGSizeMake(1310,15)];
[super viewDidLoad];
}
-(IBAction)buttonPressed:(id)sender {
i_curtag=(int)[sender tag];
//NSLog(@"%d",i_curtag);
[self fn_btnOperation];
//[self opt:str_filename];
//NSLog(@"str_filename:%@",str_filename);
}
-(void)fn_btnOperation
{
if (i_curtag==1)
{
//str_filename=[NSString stringWithFormat:@"%d.png",i_curtag];
//NSLog(@"str_filename:%@",str_filename);
str_filename=@"1.png";
// NSLog(@"1.png");
}
else if(i_curtag==2)
{
str_filename=@"2.png";
//NSLog(@"2.png");
}
else if(i_curtag==3)
{
str_filename=@"3.png";
//NSLog(@"3.png");
}
else if(i_curtag==4)
{
str_filename=@"4.png";
// NSLog(@"4.png");
}
else if(i_curtag==5)
{
str_filename=@"5.png";
//NSLog(@"5.png");
}
else if(i_curtag==6)
{
str_filename=@"6.png";
//NSLog(@"6.png");
}
else if(i_curtag==7)
{
str_filename=@"7.png";
// NSLog(@"7.png");
}
else if(i_curtag==8)
{
str_filename=@"8.png";
//NSLog(@"8.png");
}
else if(i_curtag==9)
{
str_filename=@"9.png";
// NSLog(@"9.png");
}
else if(i_curtag==10)
{
str_filename=@"10.png";
// NSLog(@"10.png");
}
[self opt:str_filename];
}
-(id)opt:(NSString*)filename
{
//NSLog(@"filename:%@",filename);
str_filename=filename;
UIActionSheet *popupQuery = [[UIActionSheet alloc] initWithTitle:@""delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"Save Image" otherButtonTitles:@"Mail Image",nil];
popupQuery.actionSheetStyle = UIActionSheetStyleBlackOpaque;
[popupQuery showInView:self.view];
[popupQuery release];
}
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex1
{
if (buttonIndex1 == 0)
{
// NSLog(@"str_filename in actionsheet:%@",str_filename);
[self savesingleimage];
// NSLog(@"save");
}
else if (buttonIndex1 == 1)
{
//NSLog(@"str_filename in else:%@",str_filename);
[self fmail];
//NSLog(@"mail");
}
}
-(void)fmail
{
//NSLog(@"str_filename:%@",str_filename);
NSMutableString *emailBody = [[[NSMutableString alloc] initWithString:@"<html><body><p>"] retain];
[emailBody appendString:@"<b><u>EMOTIONAL ICONS</u></b><br><br>"];
[emailBody appendString:@"</p></body></html>"];
MFMailComposeViewController *emailDialog = [[MFMailComposeViewController alloc] init];
UIImage *icon1 = [UIImage imageNamed:str_filename];
NSData *imageData1 = UIImageJPEGRepresentation(icon1, 1);
[emailDialog addAttachmentData:imageData1 mimeType:@"image/jpg" fileName:str_filename];
emailDialog.mailComposeDelegate =self;
[emailDialog setSubject:@"Emotional Icons"];
[emailDialog setMessageBody:emailBody isHTML:YES];
[emailDialog.navigationBar setTintColor:[UIColor blackColor]];
[self presentModalViewController:emailDialog animated:YES];
[emailDialog release];
[emailBody release];
}
- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Status:" message:@"" delegate:nil cancelButtonTitle:@"ok" otherButtonTitles:nil];
switch (result) {
case MFMailComposeResultCancelled:
alert.message = @"Message Canceled";
break;
case MFMailComposeResultSaved:
alert.message = @"Message Saved";
break;
case MFMailComposeResultSent:
alert.message = @"Message Sent";
break;
case MFMailComposeResultFailed:
alert.message = @"Message Failed";
break;
default:
alert.message = @"Message Not Sent";
break;
}
[self dismissModalViewControllerAnimated:YES];
[alert show];
[alert release];
}
-(void)savesingleimage{
// NSLog(@"str_filename in save: %@",str_filename);
UIImage *image1 = [UIImage imageNamed:str_filename];
UIImageWriteToSavedPhotosAlbum(image1, nil, nil, nil);
UIAlertView *successAlert = [[UIAlertView alloc] initWithTitle:@"Saved"
message:@"Image Saved into PhotoAlbum"
delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(110, 170, 50, 50)];
NSString *path = [[NSString alloc] initWithString:[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:str_filename]];
UIImage *bkgImg = [[UIImage alloc] initWithContentsOfFile:path];
[imageView setImage:bkgImg];
[bkgImg release];
[path release];
[successAlert addSubview:imageView];
[imageView release];
[successAlert show];
[successAlert release];
}
#pragma mark -
#pragma mark The Guts
- (void)setupPage
{
scr_anger.delegate = self;
scr_sketch.delegate =self;
//[self.scr_anger setBackgroundColor:[UIColor blackColor]];
[scr_anger setCanCancelContentTouches:NO];
[scr_sketch setCanCancelContentTouches:NO];
scr_anger.indicatorStyle = UIScrollViewIndicatorStyleWhite;
scr_anger.clipsToBounds = YES;
scr_anger.scrollEnabled = YES;
scr_anger.pagingEnabled = YES;
scr_sketch.indicatorStyle = UIScrollViewIndicatorStyleWhite;
scr_sketch.clipsToBounds = YES;
scr_sketch.scrollEnabled = YES;
scr_sketch.pagingEnabled = YES;
self.pageControl.numberOfPages = 2;
self.pageControl1.numberOfPages = 2;
[scr_anger setScrollEnabled:YES];
[scr_sketch setScrollEnabled:YES];
[scr_anger setContentSize:CGSizeMake(1290,15)];
[scr_sketch setContentSize:CGSizeMake(1940,15)];
}
#pragma mark -
#pragma mark UIScrollViewDelegate stuff
- (void)scrollViewDidScroll:(UIScrollView *)_scrollView
{
// NSLog(@"scrollview val=%d",_scrollView.tag);
i=_scrollView.tag;
// NSLog(@"i=%d",i);
if (_scrollView.tag==101) {
if (pageControlIsChangingPage) {
return;
}
/*
* We switch page at 50% across
*/
//scr_anger.frame = CGRectMake(0, 0, 320, 0);
CGFloat pageWidth =scr_anger.frame.size.width;
//NSLog(@"pagewidth=%f",pageWidth);
int page = floor((scr_anger.contentOffset.x - pageWidth / 2) / pageWidth) + 1;
// NSLog(@"page=%d",page);
pageControl.currentPage = page;
}
else if(_scrollView.tag==102)
{
if (pageControlIsChangingPage) {
return;
}
/*
* We switch page at 50% across
*/
CGFloat pageWidth =scr_sketch.frame.size.width;
int page = floor((scr_sketch.contentOffset.x - pageWidth / 2) / pageWidth) + 1;
pageControl1.currentPage = page;
NSLog(@"page=%d",page);
}
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)_scrollView
{
pageControlIsChangingPage = NO;
}
#pragma mark -
#pragma mark PageControl stuff
- (IBAction)changePage:(id)sender
{
/*
* Change the scroll view
*/
//NSLog(@"i=%d",i);
if (i==101) {
CGRect frame = scr_anger.frame;
//pageControl.frame = CGRectMake(0, 390, 320, 15);
frame.origin.x = frame.size.width * pageControl.currentPage;
frame.origin.y = 0;
[scr_anger scrollRectToVisible:frame animated:YES];
/*
* When the animated scrolling finishings, scrollViewDidEndDecelerating will turn this off
*/
pageControlIsChangingPage = YES;
}
else if(i==102)
{
CGRect frame1 = scr_sketch.frame;
frame1.origin.x = frame1.size.width * pageControl1.currentPage;
frame1.origin.y = 0;
[scr_sketch scrollRectToVisible:frame1 animated:YES];
pageControlIsChangingPage = YES;
}
}
/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
[scr_anger release];
[scr_sketch release];
[pageControl release];
[pageControl1 release];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[super dealloc];
}
@end