autolayout

AutoLayoutW:any H:any is the default choice when we first set up the project.The corresponding device screen mode is as follows:Iphone4s,iphone5/5s,iphone6Vertical screen: (w:compact h:regular)Horizontal screen: (W:compact h:compact)IPhone6 PlusVertical screen: (w:compact h:regular)Horizontal screen: (W:regular h:compact)IpadVertical screen: (W:regular h:regular)Horizontal screen: (W:regular h:regular)------"NOTE: If the item does not support horizontal display, use W:compact h:regular (or

displayTest Feedback TwoTest one inside, verify the concept of the various screens applicable to the combination, next, is a size Class to solve the magical use of horizontal screenPS: Used in, horizontal screen adaptation, re-typesetting the vertical screen when the UI layoutIn addition to changing the constraints under different combinations, you can change whether the controls are displayed under different combinationsTest Feedback ThreeAutoLayout here does not give specific how to set up, b

AutoLayout has two core concepts:ReferenceConstraintsWhen the option to use Auto layout is selected, there are two more things left: Top layout Guide and Bottom layout guideTo represent the above and below ranges, click Top Layout Guide to find a line below the status bar. When you add a constraint, it is relative to the line.How to delete a constraint: Select a constraint and press the DELETE key toIn the event of a warning, you can click the top but

= the; CGFloat Gap= *; __block UIView*lastview =Nil; for(inti =0; i ) {Zsyinvitefriendsitemview*item =_sharelist[i]; [_shareview Addsubview:item]; [Item Mas_makeconstraints:^ (Masconstraintmaker *Make ) { if(Lastview) {make.width.equalTo (lastview.mas_width); } Else{make.size.mas_equalTo (Cgsizemake (Screen_width-Gap * (Columns +1))/Columns, itemheight)); } if(i% Columns = =0) {make.left.equalTo (Item.superview). Offset (GAP); }

methods-(nslayoutconstraint*) Verticaldistancetop: (uiview*) TopView constant: (cgfloat) constant{ Nslayoutconstraint*topconstrant = [Nslayoutconstraint constraintwithitem:self attribute:nslayoutattributetop Relatedby:nslayoutrelationequal Toitem:topview attribute:nslayoutattributebottom multiplier:1 Constant:constant]; return topconstrant;}Returns a constraint that guarantees that the bottom distance of the self specific TopView is contantConstraint constructor: Constraintwithitem,

Content hugging and content Compression resistanceThese two properties are important for controls that have intrinsic content size (for example, Button,label). In layman's terms, a control with intrinsic content size knows (can calculate) its own size, such as a label, and when you set Text,font, its size can be calculated. About the intrinsic content size official explanation:Hugging priority determines how large the view has to prevent itself from getting bigger.Compression resistance priority

Automaticallyadjustsscrollviewinsets property to adapt to the navigation bar, as followsFirst drag a scrollview on the Xib, then set the upper and lower left and right constraints all to 0Then drag a view to ScrollView, four constraints are all 0, this time there will be a constraint report red, regardless, continue to add constraints to the viewAdd a horizontal constraint firstAdd a height constraint againAt this time, we find that the constraint error disappears, so that after the constraint,

directions. Update frame again, the position of the button is adjusted well.Then copy the button and add a different content.The New button resets to the recommended location and you will see that it has two constraints, a horizontal center, and a bottom distance:We create a third button in the same way:Let's Run our program:You can see that the top text is cut off and rotated:It looks good in the horizontal screen mode, but the vertical screen is not going to work. Since we have set the font s

A recent problem is the use of a separate xib file AutoLayout to create a UITableView tableheader. This xib is a dynamic-height view. So there is a problem, the view created with Xib is fixed height, if used directly: M_contenttableview.tableheaderview= Headerview; Such a statement to set Headerview, then the Headerview will always be a fixed height, if the content is too large to display incomplete, if the content is too small, then left a blank.

Method One: Using the three-party framework masonry [self.loginbtnmas_makeconstraints:^ (Masconstraintmaker *make) { Make.width.equalTo (self.view.mas_width). Multipliedby (0.3); Make.height.equalTo (@30); Make.centerX.equalTo

Only individual study notes, Daniel do not sprayCode notation using Masonry1 //Nickname2 3_namelableview =[[UILabel alloc]init];4 5[_namelableview Settextcolor:rgb ( +,164,232)];6 7_namelableview.font=[uifont systemfontofsize: -];8 9

1, add a view in Rootview, and set constraints, left, right, top, all set with super margin is 20, height is 100.2, write code control1 #import "ViewController.h"2 3 @interfaceViewcontroller ()4@property (Weak, nonatomic) Iboutlet UIView

PrefaceiOS devices are growing in size and can be adapted to a variety of devices and sizes for an app. so, We expect our app to be able to autoLayout . This article is mainly about using in Xcode constraint . This article will be updated on an

On-line information is relatively small, there is no code, the answer in a long time after the problem solved, there has been no writing articles for a while. Use the masonry open source framework to write, directly below the code to the people who

First, scale proportionally, which cannot be set in interface builder. In the codeMultiplierYou can easily set proportional scaling. At the same time, you can set different nslayoutattribute parameters to achieve unexpected results, for example,

// Do not define the Frame in this place. The following Visual Format defines the Frame. UIView * redView = [[UIView alloc] init]; RedView. backgroundColor = [UIColor redColor]; // Set NO according to the Apple Doc to prevent the autoresize

Original blog, reproduced please indicate the sourceBlog.csdn.net/hello_hwcWelcome to my iOS SDK detailed columnHttp://blog.csdn.net/column/details/huangwenchen-ios-sdk.html Preface: AutoLayout defines the location of the view, that is, in

"iOS Development" multi-screen ruler automatic fitting AutoLayout (Pure code way)(2014-09-19 09:35:47) reprint Tags: autolayout iOS development xcode UI Category: Xcode/ios/macos With regard to AutoLayout, it was first introduced from IOS6. The main function is to use constraints, the relative layout of the view to adapt to different scree

First, the appropriate matching 1. What is a fit?Adaptable and compatible with a variety of situations2. Common types of adaptation in mobile development2.1 System adaptationAdapting to different versions of the operating system2.2 Screen FitSuitable for different sizes of screen sizesTwo, dots and pixels 1. In the eyes of the userThe screen is made up of countless pixelsThe more pixels, the clearer the screen2. In the eyes of developersThe screen is made up of countless dots, and do

compatible with both the iphone and ipad, called Universal).After the release of the IOS6 system, an AutoLayout technology can be used in iOS development. AutoLayout like a Web page, specify the relative position between the view,button,text, such as how much to the left, how much to the right, how much to center, and so on. For example, a simple layout like the following.Suppose the upper-left corner is V