iPhone

开发平台：
Objective-C

MainView.m：源码内容
							#import "MainView.h"
@implementation MainView
- (id)initWithFrame:(CGRect)rect {
    if ((self == [ super initWithFrame: rect ]) != nil) {
        /* -------------------------------------- exploreView -------------------------------------- */
        NSLog(@"exploreView Init");
        exploreView = [[UITextView alloc] initWithFrame: rect];
        [aboutView setTextSize: 18];
		[aboutView setMarginTop: 2 ];
        /* -------------------------------------- fileView -------------------------------------- */
        NSLog(@"fileView Init");
        fileView = [[UITextView alloc] initWithFrame: rect];
        [aboutView setTextSize: 18];
		[aboutView setMarginTop: 2 ];
        /* -------------------------------------- htmlView -------------------------------------- */
        //NSLog(@"htmlView Init");
        //htmlView = [[UIWebView alloc] initWithFrame: rect];
        //UIScroller *scroller = [[UIScroller alloc] initWithFrame: rect];
        //[htmlView addSubview: scroller];
        
		/* -------------------------------------- NavigationBar -------------------------------------- */
		NSLog(@"NavigationBar Init");
		navBar = [ [UINavigationBar alloc] initWithFrame: CGRectMake(0, 0, 320, 48)];
		[ navBar setDelegate: self ];
		[ navBar enableAnimation ];
		[ navBar setBarStyle: 0 ];
        navTitle = [ [ UINavigationItem alloc ] initWithTitle:@"/" ];
        [ navBar pushNavigationItem: navTitle ];
		[ self addSubview: navBar ];
	
		/* -------------------------------------- UITransitionView -------------------------------------- */
		NSLog(@"UITransitionView Init");
		
		CGRect tranrect = CGRectMake(rect.origin.x, rect.origin.y + 48.0,
            rect.size.width, rect.size.height - 48.0);
		transitionView = [ [ UITransitionView alloc ]initWithFrame: tranrect ];
		
		[ self addSubview: transitionView ];
		/* -------------------------------------- UIAlertSheet -------------------------------------- */
        NSLog(@"UIAlertSheet Init");
		alertSheet = [[UIAlertSheet alloc] 
			initWithFrame : CGRectMake(0,240,320,240)];
		[alertSheet setTitle:@"Alert Title"];
		[alertSheet setBodyText:@"This is an alert."];
		[alertSheet setDestructiveButton :
			[alertSheet addButtonWithTitle:@"Yes"]];
		[alertSheet addButtonWithTitle:@"No"];
		[alertSheet setDelegate: self];
        //[alertSheet popupAlertAnimated:YES];
        [self initTable];
		[self showrootdir];
        /* Allocate initial resources here */
    }
    return self;
}
- (void)dealloc
{
	NSLog(@"MainView Release");
    /* Deallocate any resources here */
	
	[ aboutView dealloc];
    [ exploreView dealloc];
    [ fileView dealloc];
	[ transitionView dealloc];
	
	[ navBar release];
    [ self dealloc ];
    [ super dealloc ];
}
-(void)alertSheet:(UIAlertSheet*)sheet buttonClicked:(int)button
{
  if ( button == 1 )
  {
      NSLog(@"Yes");
      [Util RestartSpringboard];
  }    
  else if ( button == 2 )
    NSLog(@"No");
  [sheet dismiss];
}
-(void)initTable
{
	CGRect rect = CGRectMake(0, 0, 320.0, 480.0 - 64);
	exploreTable = [ [ MyTable alloc ] initWithFrame: rect ];
	//[ exploreTable setPath: @"/Applications" ];
	//[ exploreTable setExtension: @"" ];
	//[ exploreTable reloadData ];
    [exploreTable setView:self];
	[exploreView addSubview:exploreTable];
}
-(void)showabout
{
    if(aboutView == nil)
    {
        CGRect rect = [ UIHardware fullScreenApplicationContentRect ];
        rect.origin.x = 0;
        rect.origin.y = 0;
        //rect.size.height -= 48.0;
        aboutView = [[UITextView alloc] initWithFrame: rect];
        [aboutView setTextSize: 18];
		[aboutView setMarginTop: 2 ];
		
		CGColorSpaceRef colorSpace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
		float opaqueRed[4] = { 1.0, 0.0, 0.0, 1.0 };
		CGColorRef red = CGColorCreate(colorSpace, opaqueRed);
		[ aboutView setTextColor: red ];
        NSString *str = [NSString stringWithFormat:@"file:///Applications/FileManager.app/about.html"];
        NSURL *url = [NSURL URLWithString:str];
        NSMutableString *aboutContent = [NSMutableString stringWithCapacity:10240];
        if(url){
            NSError *err;
            NSString *fname = [[NSString alloc] initWithContentsOfURL:url encoding: NSUTF8StringEncoding error:NULL];
            NSLog(fname);
            if(fname && [fname length] > 0){
                [aboutContent appendString:fname];
            }
        }        
        [aboutView setTextSize:16];
        [aboutView setHTML:aboutContent];
        [aboutView setEditable:NO];
        [aboutView setContentSize:CGSizeMake(320,800)];
        [aboutView setAllowsRubberBanding: YES];
        /*
        // 不能处理中文
		FILE *file;
		char buffer[262144], buf[1024];
		file = fopen("/Applications/FileManager.app/about.html","r");
		if(!file)
		{
			[aboutView setText:@"Hello,World!"];			
			[aboutView setEditable:YES];
		}
		else
		{
			buffer[0] = 0;
			while((fgets(buf,sizeof(buf),file))!=NULL)
			{
				strlcat(buffer,buf,sizeof(buffer));
			}
			fclose(file);
            [ aboutView setHTML: [[NSString alloc] initWithCString: buffer]];
		}
        */
    }
    [ transitionView transition: pages_scroll_right toView: aboutView ];
    [ self setNavBar:0 withTitle:@"about"];
}
-(void)showparent
{
    depth--;
    [self showpath: [currentPath stringByDeletingLastPathComponent]];
}
-(void)showrootdir
{
    depth=0;
    [self showpath: @"/"];    
}
-(void)showSub:(NSString*)path
{
    depth++;
    [self showpath:path];    
}
-(void)showpath:(NSString*)path
{
    BOOL isdir = NO;
    NSFileManager *fileManager = [NSFileManager defaultManager]; 
    [fileManager fileExistsAtPath:path isDirectory:&isdir];
    currentPath = path;
    if(isdir)
    {        
        [exploreTable setPath: currentPath];
        [exploreTable setExtension: @"" ];
        [exploreTable reloadData];
        [ transitionView transition: pages_scroll_left toView: exploreView ];
        [self setNavBar:1 withTitle:path];
    }
    else
    {
        [self showfile:path];
        [self setNavBar:2 withTitle:path];
    }
    NSLog(@"%d",depth);
}
-(void)showfile:(NSString*)file
{
    // load file
    if([file hasSuffix: @"png"] == YES || 
       [file hasSuffix: @"JPG"] == YES )
    {
        if(imageView!=nil)
        {
            [imageView dealloc];
        }
        CGRect rect = [ UIHardware fullScreenApplicationContentRect ];
        rect.origin.x = 0;
        rect.origin.y = 0;
        imageView = [[UIAutocorrectImageView alloc] initWithFrame: rect image: [UIImage imageAtPath: file]];
        [transitionView transition: pages_scroll_left toView: imageView ];
    }
    else if([file hasSuffix: @"txt"] == YES)
    {
        FILE *txt_file;
		char buffer[262144], buf[1024];
		txt_file = fopen([file UTF8String],"r");
		if(txt_file)
		{
			buffer[0] = 0;
			while((fgets(buf,sizeof(buf),txt_file))!=NULL)
			{
				strlcat(buffer,buf,sizeof(buffer));
			}
			fclose(txt_file);
            [fileView setText: [[NSString alloc] initWithCString: buffer]]; // encoding: NSASCIIStringEncoding / NSUTF8StringEncoding
		}
        [ transitionView transition: pages_scroll_left toView: fileView ];
    }
    else if([file hasSuffix: @"html"] == YES )
    {
        /*
        FILE *htm_file;
		char buffer[262144], buf[1024];
		htm_file = fopen([file UTF8String],"r");
		if(htm_file)
		{
			buffer[0] = 0;
			while((fgets(buf,sizeof(buf),htm_file))!=NULL)
			{
				strlcat(buffer,buf,sizeof(buffer));
			}
			fclose(htm_file);
            [fileView setHTML: [[NSString alloc] initWithCString: buffer]];
		}
        [ transitionView transition: pages_scroll_left toView: fileView ];
        */
        /*
        NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL: 
            [NSURL URLWithString: [[NSString alloc] initWithFormat: @"file:///%@",file]] cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30.0];
        [htmlView loadRequest: theRequest];
        [ transitionView transition: pages_scroll_left toView: htmlView ];
        */
        NSString *str = [NSString stringWithFormat:@"file:///%@",file];
        NSURL *url = [NSURL URLWithString:str];
        NSMutableString *aboutContent = [NSMutableString stringWithCapacity:10240];
        if(url){
            NSString *fname = [[NSString alloc] initWithContentsOfURL:url encoding: NSUTF8StringEncoding error:NULL];
            if(fname && [fname length] > 0){
                [aboutContent appendString:fname];
            }
        }
        [fileView setTextSize:16];
        [fileView setHTML:aboutContent];
        [fileView setEditable:NO];
        [fileView setContentSize:CGSizeMake(320,800)];
        [fileView setAllowsRubberBanding: YES];
        [ transitionView transition: pages_scroll_left toView: fileView ];
    }
    else if([file hasSuffix: @"plist"]==YES)
    {
        NSMutableString *plistContent = [NSMutableString stringWithCapacity:10240];
        NSDictionary *dic = [NSDictionary dictionaryWithContentsOfFile:file];
        //NSEnumerator *keyenum = [dic keyEnumerator];
        /*
        id key;
        while(key = [keyenum nextObject])
        {
            NSString *pkey = [[NSString alloc] initWithString : (NSString*)key];
            NSString *pvalue = [[NSString alloc] initWithFormat : @"%@", [dic valueForKey: pkey]];
            NSString *pkeyvalue = [[NSString alloc] initWithFormat: @"%@ : %@nn", pkey, pvalue];
            //[plistContent appendString: pkeyvalue];
            [plistContent insertString: pkeyvalue atIndex:0];
        }
        */
        NSString *pkeyvalue = [[NSString alloc] initWithFormat : @"%@", dic];
        [plistContent appendString : pkeyvalue];
        [fileView setTextSize:16];
        [fileView setText:plistContent];
        [fileView setEditable:NO];
        [fileView setContentSize:CGSizeMake(320,800)];
        [fileView setAllowsRubberBanding: YES];
        [ transitionView transition: pages_scroll_left toView: fileView ];
    }
    else if([file hasSuffix: @"restar"]==YES)
    {
        [self showmsg:@"Message" content:@"Do you wanna restar now?"];
    }
    else
    {
        [fileView setText:@"can't read."];
        [ transitionView transition: pages_scroll_left toView: fileView ];
    }
}
-(void)setNavBar:(int)state withTitle:(NSString*)title
{
	switch(state)
    {
    case 0:
        [ navBar showLeftButton:nil withStyle: 0 rightButton:@"back" withStyle: 0 ];
        break;
    case 1:
        if(depth<=0)
        {
            [ navBar showLeftButton:@"about" withStyle: 0 rightButton:nil withStyle: 0 ];
        }
        else
        {
            [ navBar showLeftButton:@"back" withStyle: 0 rightButton:nil withStyle: 0 ];
        }        
        break;
    case 2:
            [ navBar showLeftButton:nil withStyle: 0 rightButton:@"close" withStyle: 0 ];
        break;
    }
    currentPage = state;
    [ navTitle setTitle: title ];
}
- (void)navigationBar:(UINavigationBar *)navbar buttonClicked:(int)button
{
	switch(button)
	{
		case 1:
			if(depth==0)
            {
                [self showabout];
            }
            else
            {
                [self showparent];
            }
			break;
		case 0:
			if(currentPage == 0)
            {
                [self showrootdir];
            }
            else
            {
                [self showparent];
            }
			break;
	}
}
-(void)showmsg:(NSString*)title content:(NSString*)body
{
    [alertSheet setTitle: title];
	[alertSheet setBodyText: body];
    [alertSheet popupAlertAnimated:YES];
}
@end

						