iOS development note dynamically generates a label based on the length of the incoming string and is arranged according to the screen width

In the development work encountered a very rare problem for me, engaged for two days, all collapsed, and finally cheated the great God to the demo did come out the effect is this

First a colleague in the background passes a string. Refuse to pass an array, then we must learn to split!

NSString *tagstr = [Dictionary valueforkey:@ "tags"];

Nsarray *statusarray = [Tagstr componentsseparatedbystring:@ ","];

This is the method of dividing the string by the symbol, then we can dynamically generate the tag based on the content;
Here are the macros used:

#define Font_size 13.0f

#define Horizontal_padding 7.0f

#define Vertical_padding 3.0f

#define Corner_radius 10.0f

#define Label_margin 5.0f

#define Bottom_margin 5.0f

#define Background_color Uicolorfromrgb (0x04, 0x9f, 0xf1)

[Uicolor colorwithred:0.93 green:0.93 blue:0.93 alpha:1.00]

#define Text_color [Uicolor Whitecolor]

#define Text_shadow_color [Uicolor Whitecolor]

#define Text_shadow_offset Cgsizemake (0.0f, 1.0f)

#define Border_color [Uicolor Lightgraycolor]. Cgcolor

#define Border_width 1.0f

This is the code:

if (Tagstr.length > 0)//Determine if a value is generated

{

float Totalheight = 0;//

CGRect previousframe = Cgrectzero;

BOOL gotpreviousframe = no;//Check if there is a previous label

For (NSString *text in Statusarray)

{

Cgsize textSize = [text Sizewithfont:[uifont systemfontofsize:font_size] Constrainedtosize:cgsizemake ( Self.frame.size.width, linebreakmode:uilinebreakmodewordwrap];//) get string lengths dynamically

Textsize.width + = horizontal_padding*2;

Textsize.height + = vertical_padding*2;

UILabel *label = nil;

if (!gotpreviousframe)

{

label = [[UILabel alloc] Initwithframe:cgrectmake (0, 5, textsize.width, Textsize.height)];

Totalheight = Textsize.height;

}

Else

{

CGRect newrect = Cgrectzero;

if (previousframe.origin.x + previousFrame.size.width + textsize.width + label_margin > Self.frame.size.width) {

Newrect.origin = Cgpointmake (0, PREVIOUSFRAME.ORIGIN.Y + textsize.height + bottom_margin);

Totalheight + = Textsize.height + Bottom_margin;

}

Else

{

Newrect.origin = Cgpointmake (previousframe.origin.x + previousFrame.size.width + label_margin, PREVIOUSFRAME.ORIGIN.Y );

}

Newrect.size = textSize;

label = [[UILabel alloc] initwithframe:newrect];

}

Previousframe = Label.frame;

Gotpreviousframe = YES;

[Label Setfont:[uifont Systemfontofsize:font_size];

if (!lblbackgroundcolor)

{

[Label Setbackgroundcolor:background_color];

} else

{

[Label Setbackgroundcolor:lblbackgroundcolor];

}

[Label Settextcolor:text_color];

[Label Settext:text];

[Label Settextalignment:uitextalignmentcenter];

[Label Setshadowcolor:text_shadow_color];

[Label Setshadowoffset:text_shadow_offset];

[Label.layer Setmaskstobounds:yes];

[Label.layer Setcornerradius:corner_radius];

[Label.layer Setbordercolor:border_color];

[Label.layer Setborderwidth:border_width];

[_corptagview Addsubview:label];

}

Sizefit = Cgsizemake (self.frame.size.width, totalheight + 1.0f);//This I have never known what effect, copied O (∩_∩) o haha ~

}

iOS development note dynamically generates a label based on the length of the incoming string and is arranged according to the screen width