secureTextEntry<\/span>\u00a0=YES;<\/p>\n\u952e\u76d8\u900f\u660e
\ntextField.keyboardAppearance = UIKeyboardAppearanceAlert;<\/p>\n
\u72b6\u6001\u680f\u7684\u7f51\u7edc\u6d3b\u52a8\u98ce\u706b\u8f6e\u662f\u5426\u65cb\u8f6c
\n[UIApplication sharedApplication].networkActivityIndicatorVisible\uff0c\u9ed8\u8ba4\u503c\u662fNO\u3002<\/p>\n
\u622a\u53d6\u5c4f\u5e55\u56fe\u7247
\n\/\/\u521b\u5efa\u4e00\u4e2a\u57fa\u4e8e\u4f4d\u56fe\u7684\u56fe\u5f62\u4e0a\u4e0b\u6587\u5e76\u6307\u5b9a\u5927\u5c0f\u4e3aCGSizeMake(200,400)
\nUIGraphicsBeginImageContext(CGSizeMake(200,400));<\/p>\n
\/\/renderInContext \u5448\u73b0\u63a5\u53d7\u8005\u53ca\u5176\u5b50\u8303\u56f4\u5230\u6307\u5b9a\u7684\u4e0a\u4e0b\u6587
\n[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];<\/p>\n
\/\/\u8fd4\u56de\u4e00\u4e2a\u57fa\u4e8e\u5f53\u524d\u56fe\u5f62\u4e0a\u4e0b\u6587\u7684\u56fe\u7247
\nUIImage *aImage = UIGraphicsGetImageFromCurrentImageContext();<\/p>\n
\/\/\u79fb\u9664\u6808\u9876\u7684\u57fa\u4e8e\u5f53\u524d\u4f4d\u56fe\u7684\u56fe\u5f62\u4e0a\u4e0b\u6587
\nUIGraphicsEndImageContext();<\/p>\n
\/\/\u4ee5png\u683c\u5f0f\u8fd4\u56de\u6307\u5b9a\u56fe\u7247\u7684\u6570\u636e
\nimageData = UIImagePNGRepresentation(aImage);<\/p>\n
\u66f4\u6539cell\u9009\u4e2d\u7684\u80cc\u666f
\nUIView *myview = [[UIView alloc] init];
\nmyview.frame = CGRectMake(0, 0, 320, 47);
\nmyview.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@”0006.png”]];
\ncell.selectedBackgroundView = myview;<\/p>\n
\u5728\u6570\u5b57\u952e\u76d8\u4e0a\u6dfb\u52a0button\uff1a
\n\/\/\u5b9a\u4e49\u4e00\u4e2a\u6d88\u606f\u4e2d\u5fc3
\n[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil]; \/\/addObserver:\u6ce8\u518c\u4e00\u4e2a\u89c2\u5bdf\u5458 name:\u6d88\u606f\u540d\u79f0
\n– (void)keyboardWillShow:(NSNotification *)note {
\n\/\/ create custom button
\nUIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
\ndoneButton.frame = CGRectMake(0, 163, 106, 53);
\n[doneButton setImage:[UIImage imageNamed:@”5.png”] forState:UIControlStateNormal];
\n[doneButton addTarget:self action:@selector(addRadixPoint) forControlEvents:UIControlEventTouchUpInside];<\/p>\n
\/\/ locate keyboard view
\nUIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];\/\/\u8fd4\u56de\u5e94\u7528\u7a0b\u5e8fwindow
\nUIView* keyboard;
\nfor(int i=0; i<[tempWindow.subviews count]; i++) \/\/\u904d\u5386window\u4e0a\u7684\u6240\u6709subview
\n{
\nkeyboard = [tempWindow.subviews objectAtIndex:i];
\n\/\/ keyboard view found; add the custom button to it
\nif([[keyboard description] hasPrefix:@”<UIKeyboard”] == YES)
\n[keyboard addSubview:doneButton];
\n}
\n}<\/p>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u4f7f\u7528\uff1a
\n\u88ab\u7528\u4e8e\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5b57\u4e32\u5fc5\u987b\u662f\u53ef\u53d8\u957f\u7684\uff0c\u4e0d\u7136\u4f1a\u51fa\u95ee\u9898<\/p>\n
\u5c06\u4e00\u4e2a\u7a7a\u95f4\u653e\u5728\u89c6\u56fe\u4e4b\u4e0a
\n[scrollView insertSubview:searchButton aboveSubview:scrollView];<\/p>\n
\u4ece\u672c\u5730\u52a0\u8f7d\u56fe\u7247
\nNSString *boundle = [[NSBundle mainBundle] resourcePath];
\n[web1 loadHTMLString:[NSString stringWithFormat:@”<img src=’http:\/\/fei263.blog.163.com\/blog\/0001.png’\/>”] baseURL:[NSURL fileURLWithPath:boundle]];<\/p>\n
\u4ece\u7f51\u9875\u52a0\u8f7d\u56fe\u7247\u5e76\u8ba9\u56fe\u7247\u5728\u89c4\u5b9a\u957f\u5bbd\u4e2d\u7f29\u5c0f
\n[cell.img loadHTMLString:[NSString stringWithFormat:@”<html><body><img src=’http:\/\/fei263.blog.163.com\/blog\/%@’ height=’90px’ width=’90px’><\/body><\/html>”,goodsInfo.GoodsImg] baseURL:nil];
\n\u5c06\u7f51\u9875\u52a0\u8f7d\u5230webview\u4e0a\u901a\u8fc7javascript\u83b7\u53d6\u91cc\u9762\u7684\u6570\u636e\uff0c\u5982\u679c\u53ea\u662f\u53d1\u9001\u4e86\u4e00\u4e2a\u8fde\u63a5\u8bf7\u6c42\u83b7\u53d6\u5230\u6e90\u7801\u4ee5\u540e\u53ef\u4ee5\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u83b7\u53d6\u6570\u636e
\nNSString *javaScript1 = @”document.getElementsByName(‘.u’).item(0).value”;
\nNSString *javaScript2 = @”document.getElementsByName(‘.challenge’).item(0).value”;
\nNSString *strResult1 = [NSString stringWithString:[theWebView stringByEvaluatingJavaScriptFromString:javaScript1]];
\nNSString *strResult2 = [NSString stringWithString:[theWebView stringByEvaluatingJavaScriptFromString:javaScript2]];<\/p>\n
\u7528NSString\u600e\u4e48\u628aUTF8\u8f6c\u6362\u6210unicode
\nutf8Str \/\/
\nNSString *unicodeStr = [NSString stringWithCString:[utf8Str UTF8String] encoding:NSUnicodeStringEncoding];<\/p>\n
View\u81ea\u5df1\u8c03\u7528\u81ea\u5df1\u7684\u65b9\u6cd5:
\n[self performSelector:@selector(loginToNext) withObject:nil afterDelay:2];\/\/\u9ec4\u8272\u6bb5\u4e3a\u65b9\u6cd5\u540d,\u548c\u5ef6\u8fdf\u51e0\u79d2\u6267\u884c.<\/p>\n
\u663e\u793a\u56fe\u50cf:
\nCGRect myImageRect = CGRectMake(0.0f, 0.0f, 320.0f, 109.0f);
\nUIImageView *myImage = [[UIImageView alloc] initWithFrame:myImageRect];
\n[myImage setImage:[UIImage imageNamed:@”myImage.png”]];
\nmyImage.opaque = YES; \/\/opaque\u662f\u5426\u900f\u660e
\n[self.view addSubview:myImage];
\n[myImage release];<\/p>\n
WebView:
\nCGRect webFrame = CGRectMake(0.0, 0.0, 320.0, 460.0);
\nUIWebView *webView = [[UIWebView alloc] initWithFrame:webFrame];
\n[webView setBackgroundColor:[UIColor whiteColor]];
\nNSString *urlAddress = @”http:\/\/www.google.com”;
\nNSURL *url = [NSURL URLWithString:urlAddress];
\nNSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
\n[webView loadRequest:requestObj];
\n[self addSubview:webView];
\n[webView release];<\/p>\n
\u663e\u793a\u7f51\u7edc\u6d3b\u52a8\u72b6\u6001\u6307\u793a\u7b26
\n\u8fd9\u662f\u5728iPhone\u5de6\u4e0a\u90e8\u7684\u72b6\u6001\u680f\u663e\u793a\u7684\u8f6c\u52a8\u7684\u56fe\u6807\u6307\u793a\u6709\u80cc\u666f\u53d1\u751f\u7f51\u7edc\u7684\u6d3b\u52a8\u3002
\nUIApplication* app = [UIApplication sharedApplication];
\napp.networkActivityIndicatorVisible = YES;<\/p>\n
\u52a8\u753b:\u4e00\u4e2a\u63a5\u4e00\u4e2a\u5730\u663e\u793a\u4e00\u7cfb\u5217\u7684\u56fe\u8c61
\nNSArray *myImages = [NSArray arrayWithObjects: [UIImage imageNamed:@”myImage1.png”], [UIImage imageNamed:@”myImage2.png”], [UIImage imageNamed:@”myImage3.png”], [UIImage imageNamed:@”myImage4.gif”], nil];
\nUIImageView *myAnimatedView = [UIImageView alloc];
\n[myAnimatedView initWithFrame:[self bounds]];
\nmyAnimatedView.animationImages = myImages; \/\/animationImages\u5c5e\u6027\u8fd4\u56de\u4e00\u4e2a\u5b58\u653e\u52a8\u753b\u56fe\u7247\u7684\u6570\u7ec4
\nmyAnimatedView.animationDuration = 0.25; \/\/\u6d4f\u89c8\u6574\u4e2a\u56fe\u7247\u4e00\u6b21\u6240\u7528\u7684\u65f6\u95f4
\nmyAnimatedView.animationRepeatCount = 0; \/\/ 0 = loops forever \u52a8\u753b\u91cd\u590d\u6b21\u6570
\n[myAnimatedView startAnimating];
\n[self addSubview:myAnimatedView];
\n[myAnimatedView release];<\/p>\n
\u52a8\u753b:\u663e\u793a\u4e86something\u5728\u5c4f\u5e55\u4e0a\u79fb\u52a8\u3002\u6ce8\uff1a\u8fd9\u79cd\u7c7b\u578b\u7684\u52a8\u753b\u662f\u201c\u5f00\u59cb\u540e\u4e0d\u5904\u7406\u201d -\u4f60\u4e0d\u80fd\u83b7\u53d6\u4efb\u4f55\u6709\u5173\u7269\u4f53\u5728\u52a8\u753b\u4e2d\u7684\u4fe1\u606f(\u5982\u5f53\u524d\u7684\u4f4d\u7f6e) \u3002\u5982\u679c\u60a8\u9700\u8981\u6b64\u4fe1\u606f\uff0c\u60a8\u4f1a\u624b\u52a8\u4f7f\u7528\u5b9a\u65f6\u5668\u53bb\u8c03\u6574\u52a8\u753b\u7684X\u548cY\u5750\u6807
\n\u8fd9\u4e2a\u9700\u8981\u5bfc\u5165QuartzCore.framework
\nCABasicAnimation *theAnimation;
\ntheAnimation=[CABasicAnimation animationWithKeyPath:@”transform.translation.x”];
\n\/\/Creates and returns an CAPropertyAnimation instance for the specified key path.
\n\/\/parameter:the key path of the property to be animated
\ntheAnimation.duration=1;
\ntheAnimation.repeatCount=2;
\ntheAnimation.autoreverses=YES;
\ntheAnimation.fromValue=[NSNumber numberWithFloat:0];
\ntheAnimation.toValue=[NSNumber numberWithFloat:-60];
\n[view.layer addAnimation:theAnimation forKey:@”animateLayer”];<\/p>\n
Draggable items\/\/\u62d6\u52a8\u9879\u76ee
\nHere’s how to create a simple draggable image.\/\/\u8fd9\u662f\u5982\u4f55\u751f\u6210\u4e00\u4e2a\u7b80\u5355\u7684\u62d6\u52a8\u56fe\u8c61
\n1. Create a new class that inherits from UIImageView
\n@interface myDraggableImage : UIImageView { }
\n2. In the implementation for this new class, add the 2 methods:
\n– (void) touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event
\n{
\n\/\/ Retrieve the touch point \u68c0\u7d22\u63a5\u89e6\u70b9
\nCGPoint pt = [[touches anyObject] locationInView:self];
\nstartLocation = pt;
\n[[self superview] bringSubviewToFront:self];
\n}
\n– (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event
\n{
\n\/\/ Move relative to the original touch point \u76f8\u5bf9\u4ee5\u524d\u7684\u89e6\u6478\u70b9\u8fdb\u884c\u79fb\u52a8
\nCGPoint pt = [[touches anyObject] locationInView:self];
\nCGRect frame = [self frame];
\nframe.origin.x += pt.x – startLocation.x;
\nframe.origin.y += pt.y – startLocation.y;
\n[self setFrame:frame];
\n}
\n3. Now instantiate the new class as you would any other new image and add it to your view
\n\/\/\u5b9e\u4f8b\u8fd9\u4e2a\u65b0\u7684\u7c7b,\u653e\u5230\u4f60\u9700\u8981\u65b0\u7684\u56fe\u7247\u653e\u5230\u4f60\u7684\u89c6\u56fe\u4e0a
\ndragger = [[myDraggableImage alloc] initWithFrame:myDragRect];
\n[dragger setImage:[UIImage imageNamed:@”myImage.png”]];
\n[dragger setUserInteractionEnabled:YES];<\/p>\n
\u7ebf\u7a0b:
\n1. Create the new thread:
\n[NSThread detachNewThreadSelector:@selector(myMethod) toTarget:self withObject:nil];
\n2. Create the method that is called by the new thread:
\n– (void)myMethod
\n{
\nNSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
\n*** code that should be run in the new thread goes here ***
\n[pool release];
\n}
\n\/\/What if you need to do something to the main thread from inside your new thread (for example, show a loading \/\/symbol)? Use performSelectorOnMainThread.
\n[self performSelectorOnMainThread:@selector(myMethod) withObject:nil waitUntilDone:false];<\/p>\n
Plist files
\nApplication-specific plist files can be stored in the Resources folder of the app bundle. When the app first launches, it should check if there is an existing plist in the user’s Documents folder, and if not it should copy the plist from the app bundle.
\n\/\/ Look in Documents for an existing plist file
\nNSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory, NSUserDomainMask, YES);
\nNSString *documentsDirectory = [paths objectAtIndex:0];
\nmyPlistPath = [documentsDirectory stringByAppendingPathComponent:
\n[NSString stringWithFormat: @”%@.plist”, plistName] ];
\n[myPlistPath retain];
\n\/\/ If it’s not there, copy it from the bundle
\nNSFileManager *fileManger = [NSFileManager defaultManager];
\nif ( ![fileManger fileExistsAtPath:myPlistPath] )
\n{
\nNSString *pathToSettingsInBundle = [[NSBundle mainBundle] pathForResource:plistName ofType:@”plist”];
\n}
\n\/\/Now read the plist file from Documents
\nNSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory, NSUserDomainMask, YES);
\nNSString *documentsDirectoryPath = [paths objectAtIndex:0];
\nNSString *path = [documentsDirectoryPath stringByAppendingPathComponent:@”myApp.plist”];
\nNSMutableDictionary *plist = [NSDictionary dictionaryWithContentsOfFile: path];
\n\/\/Now read and set key\/values
\nmyKey = (int)[[plist valueForKey:@”myKey”] intValue];
\nmyKey2 = (bool)[[plist valueForKey:@”myKey2″] boolValue];
\n[plist setValue:myKey forKey:@”myKey”];
\n[plist writeToFile:path atomically:YES];<\/p>\n
Alerts
\nShow a simple alert with OK button.
\nUIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:
\n@”An Alert!” delegate:self cancelButtonTitle:@”OK” otherButtonTitles:nil];
\n[alert show];
\n[alert release];<\/p>\n
Info button
\nIncrease the touchable area on the Info button, so it’s easier to press.
\nCGRect newInfoButtonRect = CGRectMake(infoButton.frame.origin.x-25, infoButton.frame.origin.y-25, infoButton.frame.size.width+50, infoButton.frame.size.height+50);
\n[infoButton setFrame:newInfoButtonRect];<\/p>\n
Detecting Subviews
\nYou can loop through subviews of an existing view. This works especially well if you use the “tag” property on your views.
\nfor (UIImageView *anImage in [self.view subviews])
\n{
\nif (anImage.tag == 1)
\n{ \/\/ do something }
\n}<\/p>\n
\u628aUIImagePickerController\u4f5c\u4e3asub view\u7684\u65b9\u6cd5<\/div>\n
2012-04-26 18:54<\/div>\n
\n\n\n\n\n UIImagePickerController\u662f\u56fe\u7247\u9009\u62e9\u548c\u7167\u76f8\u673a\u63a7\u4ef6\u3002<\/p>\n \u6309\u7167\u8fd9\u6837\u7684\u65b9\u6cd5\u53ef\u4ee5\u76f4\u63a5\u62cd\u7167\uff1a<\/p>\n UIImagePickerController *imagePickerController= [[UIImagePickerController\u00a0alloc]init];<\/p>\n imagePickerController.sourceType=\u00a0UIImagePickerControllerSourceTypeCamera;<\/p>\n <\/p>\n [self\u00a0presentModalViewController:imagePickerController\u00a0animated:YES];<\/p>\n <\/p>\n \u4f46\u662f\u5982\u679c\u4f60\u60f3\u628a\u5b83\u52a0\u6210\u4e00\u4e2asub view\uff0c\u4f60\u5c31\u4f1a\u53d1\u73b0\u5f97\u5230\u7684\u53ea\u662f\u4e00\u4e2a\u4e0d\u5b8c\u5168\u7684\u63a7\u4ef6\u3002<\/p>\n [self.viewaddSubview:imagePickerController.view];<\/p>\n \u89e3\u51b3\u65b9\u6cd5\u5c31\u662f\u624b\u52a8\u8c03\u7528\u4e24\u4e2a\u521d\u59cb\u5316\u51fd\u6570\uff1a<\/p>\n [imagePickerController\u00a0viewWillAppear:NO];<\/p>\n [imagePickerController\u00a0viewDidAppear:NO];<\/p>\n <\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \t\t<\/p>\n","protected":false},"excerpt":{"rendered":" – (NSString *)URLEncodedString:(NSString *)string … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[13],"class_list":["post-29","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-uncategorized-2"],"_links":{"self":[{"href":"https:\/\/www.sunyuping.com\/index.php\/wp-json\/wp\/v2\/posts\/29","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sunyuping.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sunyuping.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sunyuping.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sunyuping.com\/index.php\/wp-json\/wp\/v2\/comments?post=29"}],"version-history":[{"count":0,"href":"https:\/\/www.sunyuping.com\/index.php\/wp-json\/wp\/v2\/posts\/29\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sunyuping.com\/index.php\/wp-json\/wp\/v2\/media?parent=29"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sunyuping.com\/index.php\/wp-json\/wp\/v2\/categories?post=29"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sunyuping.com\/index.php\/wp-json\/wp\/v2\/tags?post=29"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |
![\"iphone\u5f00\u53d1\u5e38\u7528\u4ee3\u7801(\u4e0d\u65ad\u66f4\u65b0)](\"http:\/\/hiphotos.baidu.com\/hh20040410\/pic\/item\/5df06d5c2e21496efaf2c045.jpg\")
<\/a><\/p>\n