Benefits of NSAttributedString after iOS6, nsattributedstring
@ NSMutableAttributedString must be imported before iOS6: CoreText. framework, but it is not required after iOS6.
-(Void) testOfNSMutableAttributedStringAndNSAttributedString {/***-(void) addAttribute :( NSString *) name value :( id) value range :( nsange) range; * main method: * name attribute name * value corresponding to the effect * range mapped to the range effect */# pragma mark test data 0 NSString * testString = @ "NSMutableAttributed --- 0 "; UILabel * testLabel = [[UILabel alloc] initWithFrame: CGRectMake (60,100,200, 40)]; NSMutableAttributedString * testAttriString = [[NSMutableAttributedString alloc] initWithString: testString]; // Add a strikethrough [testAttriString addattriename: NSStrikethroughStyleAttributeName value: [NSNumber numberWithInt: NSUnderlineStyleSingle] range: NSMakeRange (0, testAttriString. length)]; // Add the underline [testAttriString addAttribute: NSUnderlineStyleAttributeName value: [NSNumber numberWithInt: NSUnderlineStyleSingle] range: NSMakeRange (0, testAttriString. length)]; // set the text font and size [testAttriString addAttribute: NSFontAttributeName value: [UIFont fontWithName: @ "Helvetica-Bold" size: 15] range: NSMakeRange (0, testAttriString. length)]; // set the stroke width [testAttriString addAttribute: NSStrokeWidthAttributeName value: [NSNumber numberWithInt: NSUnderlineStyleDouble] range: NSMakeRange (0, testAttriString. length)]; // the background color of the label [testAttriString addattriename: NSBackgroundColorAttributeName value: [UIColor yellowColor] range: NSMakeRange (0, testAttriString. length)]; // No effect is detected currently ..... [testAttriString addattristring: NSVerticalGlyphFormAttributeName value: [NSNumber numberWithInt: 1] range: NSMakeRange (0, testAttriString. length)]; // text color on the label (which also affects the color of strikethrough and underline) [testAttriString addAttribute: NSForegroundColorAttributeName value: [UIColor redColor] range: NSMakeRange (0, testAttriString. length)]; testLabel. attributedText = testAttriString; # pragma mark test data 1 NSString * testString1 = @ "tags --- 1"; UILabel * testLabel1 = [[UILabel alloc] initWithFrame: CGRectMake (60,200,200, 40)]; NSMutableAttributedString * testAttriString1 = [[NSMutableAttributedString alloc] initWithString: testString1]; // color and underline of text content, the color of the strikethrough is different. // NSStrokeColorAttributeName has no effect. // It must be set with NSStrokeWidthAttributeName. [testAttriString1 addAttribute: required value: [NSNumber numberWithInt: Required] range: NSMakeRange, identifier)]; [testAttriString1 addattriange: Identifier value: [UIColor redColor] range: NSMakeRange (0, priority)]; [testAttriString1 addattriange: NSStrokeColorAttributeName value: [UIColor cyanColor] range: NSMakeRange (0, strong)]; [testAttriString1 addattriange: invalid value: [NSNumber numberWithInt: Unknown] range: NSMakeRange (0, testAttriString1.length)]; Signature = testAttriString1; # pragma mark Test Data 2 NSString * testString2 = @ "NSMutableAttributed --- 2"; UILabel * testLabel2 = [[UILabel alloc] initWithFrame: CGRectMake (60,300,200, 40)]; optional * testAttriString2 = [[effecalloc] initWithString: testString2]; // NSShadow * shadow = [[NSShadow alloc] init]; [shadow setShadowColor: [UIColor colorWithRed: 0.053 green: 0.088 blue: 0.205 alpha: 1.000]; [shadow setShadowBlurRadius: 4.0]; [shadow setShadowOffset: CGSizeMake (2, 2)]; [testAttriString2 addattrimake: NSShadowAttributeName value: shadow range: NSMakeRange (0, [testAttriString2 length])]; testLabel2.backgroundColor = [UIColor clearColor]; testLabel2.attributedText = testAttriString2; [self. view addSubview: testLabel]; [self. view addSubview: testLabel1]; [self. view addSubview: testLabel2];}
IOS6 is released. Is my apple 4 511 upgraded now? Wait for a short upgrade.
For non-jailbreaking users, please upgrade! Apple 4 is not old at present. It is more than enough to deal with new solid parts. The slow speed is not too obvious. Only when I played some HD games on the 4th generation, the number of frames was very low or very slow.
The jailbreaking user should not be promoted, and wait until the new firmware's perfect jailbreak software is released before the upgrade.