An instance code of an adaptive distribution button in IOS based on screen width _ios

Download Demo Link: https://github.com/MinLee6/buttonShow.git

There are two ways to display controls on a screen, one that varies according to the content, and one that varies according to the screen width.

I will present the following two ways, in the form of code:

1: Change according to specific content

STYLEONEVIEWCONTROLLER.M//Buttonshow////Created by limin on 15/06/15. COPYRIGHT©2015 Information Technology (Beijing) Co., Ltd. 
All rights reserved. 
#import "StyleOneViewController.h" #import "UIViewExt.h"//each column interval #define KVIEWMARGIN 10//row number high #define Kvieh 28 #define KSCREENW [UIScreen mainscreen].bounds.size.width #define COLOR (r,g,b) [Uicolor colorwithred:r/255.0 green:G/ 
255.0 blue:b/255.0 alpha:1.0] @interface Styleoneviewcontroller () {UIButton *tmpbtn; 
CGFloat BTNW; 
CGFloat btnviewheight; 
}/* Store button View/@property (Nonatomic,strong) UIView *btnsview; 
/* button on the text * * * @property (Nonatomic,strong) Nsmutablearray *btnmsgarrays; 
@property (Nonatomic,strong) nsmutablearray* btnidarrays; 
/** all buttons */@property (Nonatomic,strong) Nsmutablearray *allbtnarrays; 
/** Server provides button label * * * @property (Nonatomic,strong) Nsarray *taginfoarray; 
-------Display the selected text//confirmation button/@property (Nonatomic,strong) UIButton *surebutton; 
/* Text */@property (Nonatomic,strong) Uilabel *showlabel; @end @iMplementation Styleoneviewcontroller-(void) viewdidload {[Super viewdidload]; 
Self.view.backgroundColor = [Uicolor Whitecolor]; 
[Self gettagmsg]; 
}-(void) gettagmsg {self.btnmsgarrays = [[Nsmutablearray alloc]init]; 
_allbtnarrays = [[Nsmutablearray alloc]init]; 
Self.btnidarrays = [[Nsmutablearray alloc]init]; Self.taginfoarray = @[@{@ "id": @ "1", @ "tagmsg": @ "taste good Taste Good"}, @{@ "id": @ "1", @ "tagmsg": @ "Good environment"}, @{@ "id": @ "1", @ "Tagmsg" : @ "cost effective"}, @{@ "id": @ "1", @ "tagmsg": @ "good location"}, @{@ "id": @ "1", @ "tagmsg": @ "serve fast"}, @{@ "id": @ "1", @ "tagmsg": @ "Vegetable Volume"}, @{@ "id 
": @" 1 ", @" tagmsg ": @" Delicious "}, @{@" id ": @" 1 ", @" tagmsg ": @" good attitude, thoughtful service "}]; 
Assigns a value for (int i=0; i<_taginfoarray.count; i++) {nsdictionary *dict = _taginfoarray[i]; 
[Self.btnidarrays addobject:dict[@ "id"]]; 
[Self.btnmsgarrays addobject:dict[@ "tagmsg"]]; 
} [self createbtns]; //Create button-(void) createbtns{//CREATE VIEW Self.btnsview to place button = [[UIView alloc]initwithframe:cgrectmake (Kscreenw 
-2*kviewmargin, 40)]; self.btnsView.backgRoundcolor = Color (237, 237, 237); 
[Self.view AddSubview:self.btnsView]; 
/** * Array to store the number of screen size of each row of buttons/Nsmutablearray *indexbtns=[self Returnbtnsforrowandcol]; 
Statistics button View height btnviewheight=indexbtns.count* (kvieh+kviewmargin) +10; 
Setting the height of the Btnview self.btnsview.height=btnviewheight; 
Nsinteger count=0; 
CGFloat Y; Loop Create button for (int row=0; row<indexbtns.count; row++) {for (int col=0; col<[indexbtns[row]intvalue]; col++) {CGF 
Loat X; 
y=10+row* (Kviewmargin+kvieh); 
Button wide btnw=[self returnbtnwithwithstr:self.btnmsgarrays[count]]; 
if (tmpbtn&&col) {X=cgrectgetmaxx (tmpbtn.frame) +kviewmargin; 
}else{X=KVIEWMARGIN+COL*BTNW; 
} UIButton *btn=[[uibutton Alloc]initwithframe:cgrectmake (X, Y, BTNW, Kvieh)]; 
[BTN Settitle:self.btnmsgarrays[count] forstate:uicontrolstatenormal]; 
Btn.titlelabel.font=[uifont Systemfontofsize:12]; 
btn.layer.borderwidth=1; Btn.layer.borderColor = Color (156,156,156). 
Cgcolor; [Btn Settitlecolor:color (156, 156, 156) Forstate:uicontrolstateNormal]; 
[Btn Settitlecolor:color (130) forstate:uicontrolstateselected]; 
Btn.backgroundcolor=[uicolor Clearcolor]; 
btn.layer.cornerradius=2; 
Btn.tag=[self.btnidarrays[count] IntegerValue]; 
[Btn addtarget:self Action: @selector (Btnclick:) forcontrolevents:uicontroleventtouchupinside]; 
[Self.allbtnarrays ADDOBJECT:BTN]; 
TMPBTN=BTN; 
[Self.btnsview ADDSUBVIEW:BTN]; 
Count+=1; }//Create confirmation button UIButton *btn = [[UIButton alloc]initwithframe:cgrectmake (Kviewmargin, self.btnsview.bottom+40, KscreenW-2 
*kviewmargin, 44)]; 
[Btn settitle:@ "confirm" forstate:uicontrolstatenormal]; 
[btn Settitlecolor:[uicolor Whitecolor] forstate:uicontrolstatenormal]; 
Btn.backgroundcolor = Color (214, 116, 0); 
[Btn addtarget:self Action: @selector (Showselectedclick:) forcontrolevents:uicontroleventtouchupinside]; 
Self.surebutton = BTN; 
[Self.view ADDSUBVIEW:BTN]; 
return button UIButton *btn2 = [[UIButton alloc]initwithframe:cgrectmake ((KscreenW-80) *0.5, self.view.height-80, 80, 80)]; [Btn2 settitle:@ "Back" Forstate:uicontrolstatenormal]; 
[Btn2 Settitlecolor:[uicolor Purplecolor] forstate:uicontrolstatenormal]; 
Btn2.layer.cornerRadius = 40; 
Btn2.clipstobounds = YES; Btn2.layer.borderColor = [Uicolor Purplecolor]. 
Cgcolor; 
Btn2.layer.borderWidth = 2; 
[Btn2 addtarget:self Action: @selector (Backbtnclick:) forcontrolevents:uicontroleventtouchupinside]; 
[Self.view ADDSUBVIEW:BTN2]; 
#pragma mark-Returns a few rows of buttons in the View-(nsmutablearray*) returnbtnsforrowandcol{cgfloat allwidth = 0.0; 
Nsinteger countw=0; 
Nsmutablearray *indexbtns=[nsmutablearray Array]; 
Nsmutablearray *tmpbtns=[nsmutablearray Array]; 
for (int j=0;j<self.btnmsgarrays.count;j++) {cgfloat width=[self returnbtnwithwithstr:self.btnmsgarrays[j]]; 
Allwidth+=width+kviewmargin; 
Countw+=1; 
if (allwidth>kscreenw-10) {//Judge the first row Nsinteger Lastnum=[[tmpbtns Lastobject]integervalue]; 
[Indexbtns addobject:@ (Lastnum)]; 
[Tmpbtns removeallobjects]; 
allwidth=0.0; 
countw=0; 
J-=1; 
}else{[Tmpbtns addobject:@ (COUNTW)]; 
}} if (tmpbtns.count!=0) {Nsinteger lastnum=[[tmpbtns lastobject]integervalue]; 
[Indexbtns addobject:@ (Lastnum)]; 
return indexbtns; }-(CGFloat) Returnbtnwithwithstr: (NSString *) str{//Compute character length nsdictionary *minattributesri = @{nsfontattributename:[ 
Uifont Systemfontofsize:12]}; Cgsize mindetailsizeri = [str boundingrectwithsize:cgsizemake (MB, maxfloat) options:nsstringdrawingusesfontleading 
Attributes:minattributesri context:nil].size; 
return mindetailsizeri.width+12; 
#pragma mark-button click Event-(void) Btnclick: (UIButton *) btn {btn.selected =!btn.isselected; if (btn.isselected) {Btn.layer.borderColor = Color (202, 48, 130). 
Cgcolor; }else {btn.layer.borderColor = Color (156, 156, 156). 
Cgcolor; 
}-(void) Showselectedclick: (UIButton *) btn {Nsmutablearray *strarray = [[Nsmutablearray alloc]init]; 
For (UIButton *btn in self.allbtnarrays) {if (btn.isselected) {[Strarray addObject:btn.currentTitle]; } nsstring *str = [Strarray componentsjoinedbystring:@; 
"]; 
Uifont *font = [Uifont systemfontofsize:14]; CGFloat STRH = [str boundingrectwithsize:cgsizemake (Kscreenw-2*kviewmargin, maxfloat) options: 
Nsstringdrawinguseslinefragmentorigin Attributes:@{nsfontattributename:font} context:nil].size.height; Display text if (!self.showlabel) {Uilabel *label = [[Uilabel alloc]initwithframe:cgrectmake (Kviewmargin, Self.sureButton.bo 
Ttom+20, Kscreenw-2*kviewmargin, STRH)]; 
Label.font = font; 
Label.textcolor = [Uicolor Redcolor]; 
Label.numberoflines = 0; 
Self.showlabel = label; 
[Self.view Addsubview:label]; 
} self.showLabel.text = str; 
Self.showLabel.height = STRH; 
}-(void) Backbtnclick: (UIButton *) btn {[self dismissviewcontrolleranimated:yes completion:nil]; 
}-(void) didreceivememorywarning {[Super didreceivememorywarning]; 
Dispose of any of the can is recreated. }/* #pragma mark-navigation//In a storyboard-based application, you'll often want to do a little preparation Ore navigation-(void) PrepareforseGUE: (Uistoryboardsegue *) Segue Sender: (ID) Sender {//Get the new view controller using [Segue Destinationviewcontroller] 
. 
Pass the selected object to the new view controller. } * * @end

2: Varies according to screen width.

STYLETWOVIEWCONTROLLER.M//Buttonshow////Created by limin on 16/11/15. copyright©2016 Letter (Beijing) Technology Co., Ltd. 
All rights reserved. #import "StyleTwoViewController.h" #import "UIViewExt.h" #define Ktagmargin #define Kcellmargin #define KSCR eenwidth [UIScreen mainscreen].bounds.size.width #define-Color (r,g,b) [Uicolor colorwithred:r/255.0 green:G/255.0 Blue  
: b/255.0 alpha:1.0] @interface Styletwoviewcontroller ()/* Button/@property (Nonatomic,strong) Nsmutablearray *btnsarray; 
/* Button Text * * * @property (Nonatomic,strong) Nsarray *tagsarray; 
/* Default Selected Button * * * @property (Nonatomic,strong) UIButton *selectedbtn; 
/* Label */@property (nonatomic,copy) NSString *selecttopictitle; 
@end @implementation Styletwoviewcontroller-(void) viewdidload {[Super viewdidload]; 
Self.view.backgroundColor = [Uicolor Whitecolor]; 
[Self gettagmsg]; 
}-(void) gettagmsg {_btnsarray = [Nsmutablearray array]; Add Tag button Nsarray *tagsarray = @[@ "Good Life 1", @ "Good Life 2", @ "Good Life 3", @ "Good Life 4", @ "Good Life 5",@ "Good Life 6", @ "Good Life 7", @ "Good Life 8", @ "Good Life 9", @ "Good Life 10", @ "Good Life 11", @ "Good Life 12", @ "Good Life 13", @ "Better life 14", @ "Good Life 15", @ "Good Life 16", @ 
Good Life 17 ", @" Good Life 18 ", @" Good Life 19 ", @" Good Life 20 ", @" Better life 21 ", @" Good Life 22 ", @" Good Life 23 ", @" Good Life 24 "]; 
_tagsarray = Tagsarray; 
[Self createtagsqures:tagsarray]; 
#pragma mark-Create box-(void) Createtagsqures: (Nsarray *) tags {//one line up to 4. 
int maxcols = 4; 
width, height cgfloat totalwidth = kscreenwidth-2*kcellmargin-(maxCols-1) *ktagmargin; 
CGFloat btnwidth = Totalwidth/maxcols; 
CGFloat btnheight = 30; 
for (int i=0; i<tags.count; i++) {//create button UIButton *btn = [UIButton buttonwithtype:uibuttontypecustom]; 
Btn.backgroundcolor = Color (211, 156, 4); 
Set button properties [btn setbackgroundimage:[uiimage imagenamed:@ "DISCOVER_BTNBG"] forstate:uicontrolstatenormal]; 
[Btn setbackgroundimage:[uiimage imagenamed:@ "DISCOVER_BTNBG"] forstate:uicontrolstatedisabled]; 
btn.adjustsimagewhenhighlighted = NO; 
[Btn Settitlecolor:color (Wuyi, Wuyi) forstate:uicontrolstatenormal]; [Btn Settitlecolor:[uicolor Whitecolor] forstate:uicontrolstatedisabled]; 
[Btn.titlelabel Setfont:[uifont systemfontofsize:13]]; 
Btn.titleLabel.textAlignment = Nstextalignmentcenter; 
Btn.tag = i+10; 
Listener clicks [BTN addtarget:self Action: @selector (Tagbtnclick:) forcontrolevents:uicontroleventtouchupinside]; 
button assignment [btn settitle:tags[i] forstate:uicontrolstatenormal]; 
[Self.view ADDSUBVIEW:BTN]; 
Compute the frame int col = i% Maxcols; 
int row = I/maxcols; 
btn.x = Kcellmargin + col* (btnwidth + ktagmargin); 
BTN.Y = + + row * (Btnheight + ktagmargin); 
Btn.width = Btnwidth; 
Btn.height = Btnheight; 
Sets the default state of all buttons to No. 
btn.enabled = YES; 
[Self.btnsarray ADDOBJECT:BTN]; 
//The default first button is selected UIButton *btn = self.btnsarray[0]; 
btn.enabled = NO; 
SELF.SELECTEDBTN = BTN; 
Self.selecttopictitle = self.tagsarray[0]; return button UIButton *btn2 = [[UIButton alloc]initwithframe:cgrectmake (kScreenWidth-80) *0.5, self.view.height-160, 80, 80) 
]; 
[Btn2 settitle:@ "return" forstate:uicontrolstatenormal]; [Btn2 Settitlecolor:[uicolor PurpLecolor] Forstate:uicontrolstatenormal]; 
Btn2.layer.cornerRadius = 40; 
Btn2.clipstobounds = YES; Btn2.layer.borderColor = [Uicolor Purplecolor]. 
Cgcolor; 
Btn2.layer.borderWidth = 2; 
[Btn2 addtarget:self Action: @selector (Backbtnclick:) forcontrolevents:uicontroleventtouchupinside]; 
[Self.view ADDSUBVIEW:BTN2]; Create Confirmation button UIButton *btn3 = [[UIButton alloc]initwithframe:cgrectmake (Kcellmargin, btn2.top-80, kscreenwidth-2* 
Kcellmargin, 44)]; 
[Btn3 settitle:@ "confirm" forstate:uicontrolstatenormal]; 
[Btn3 Settitlecolor:[uicolor Whitecolor] forstate:uicontrolstatenormal]; 
Btn3.backgroundcolor = Color (214, 116, 0); 
[Btn3 addtarget:self Action: @selector (Showselectedclick:) forcontrolevents:uicontroleventtouchupinside]; 
[Self.view Addsubview:btn3];  
#pragma mark-button click Event-(void) Tagbtnclick: (UIButton *) button {//Get clicked button, uncheck style self.selectedBtn.enabled = YES; 
button.enabled = NO; 
self.selectedbtn = button; 
Nsinteger index = button.tag-10; NSString *selectstr = self.tagsarray[Index]; 
Self.selecttopictitle = Selectstr; 
}-(void) Showselectedclick: (UIButton *) button {//Keep the text of the selected label NSLog (@ "Selected text:%@", self.selecttopictitle); Uialertview *alert = [[Uialertview alloc]initwithtitle:self.selecttopictitle message:@ ' "Delegate:nil 
cancelbuttontitle:@ "Confirmation" otherbuttontitles:nil]; 
[Alert show]; 
}-(void) Backbtnclick: (UIButton *) btn {[self dismissviewcontrolleranimated:yes completion:nil]; 
}-(void) didreceivememorywarning {[Super didreceivememorywarning]; 
Dispose of any of the can is recreated. }/* #pragma mark-navigation//In a storyboard-based application, you'll often want to do a little preparation Ore navigation-(void) Prepareforsegue: (Uistoryboardsegue *) Segue Sender: (ID) Sender {//Get the new view controller USI 
ng [Segue Destinationviewcontroller]. 
Pass the selected object to the new view controller. } * * @end

The above is a small set to introduce the iOS in accordance with screen width adaptive distribution button instance code, I hope to help you, if you have any questions please give me a message, small series will promptly reply to everyone. Here also thank you very much for the cloud Habitat Community website support!