autolayout

In recent projects, with storyboard, AutoLayout development, a viewcontroller nested multiple sub-viewcontroller, resulting in a coordinate exception problem when adding it to the parent Viewcontroller; tracking Code Discovery , this is due to the AutoLayout state, get frame data is inaccurate (or the timing is not right) caused by, on the internet for a long time, learn from each other, get the solution, t

library.Next: Look at the effects at different resolutions:768*1280,andriod 4.4.4480*800,android 2.3.7The resolution gap between the two machines is quite large, and according to the rule of percentages, the perfect adaptation is achieved, and most importantly: No longer need to take the design to figure out how much DP the control's width is going to take. No more need to write multiple dimens for multiple screens You don't have to calculate the percentage anymore (if you use

One, use AutoLayout for relative layout:1. Create a new project, set up Rootviewcontroller (no more speaking here)2. Tick below (as we are using sizeclass below, so tick two):3. Here I created a lable, named View1, where you can see that the settings View1 are constrained to the upper and the left 0, and the width and height settings are 200, so you can set the right and bottom constraints,4. When the above work is done, click the Add button and a yel

error log will appear during debugging. You can find and resolve the conflict based on the log. constraints conflict. No crash is found on ios6 and occasional crash occurs on ios7. the trade-off between xib and code: autolayout is no longer a "Don't use" issue, but a "how to use" issue. The underlying framework seems to have completely deleted autoresizemask, instead, autoresizemask is automatically converted to auto layout. In this case, the origina

Add constraintSteps to implement AutoLayout codeCreate a specific constraint object using the Nslayoutconstraint classAdd a Constraint object to the corresponding view-(void) AddConstraint: (Nslayoutconstraint *) constraint;-(void) Addconstraints: (Nsarray *) constraints;Code implementation AutoLayout Point of attentionTo disable the Autoresizing feature, set the following properties of the view to NoView.t

Yes, it is very clear to tell you reader, AutoLayout can do animation. AutoLayout is used to make a variety of constraints, is used to fit different screens, then when we change some of these constraints and say that the process of change at a slow speed display, then it is not the implementation of the animation ~ First look at a cool animation, this animation is provided by the book iOS Animations by tut

IOS uses a AutoLayout occlusion keyboard for processing Explain my situation first: 1. I used a simple login problem with the combination of masonry and iOS AutoLayout. LoginView is one of my login background,, set the center, when I click Input, I will determine whether the keyboard will block my LoginView, if not blocked, I do not need to change the LoginView frame,,, in

UILabel autolayout usage: The child control determines the height of the parent control, uilabelautolayoutToday, let's talk about the usage of UILable autolayout. This control is a bit special. If you do not set it, you just set the text content on the UILable, and you will find that the text content cannot be filled with the entire UILable, If this happens, it will be embarrassing. Today we will talk abou

not operate at every step, so far, the basic AutoLayout use has been described, you can run to see the effect.Second, the use of Sizeclass1, then the above example, we can find that at the bottom, there are Wany HAny, click Wany, we can see that this is the support of all the screen settings, the disadvantage is not exquisite, when we cross-screen how to do? (For a detailed resolution of size class, refer to the Apple documentation):2. When we are in

1 -- the- - -: +:03.098Daily delivery [2079:1664555] This application isModifying the AutoLayout engine from a background thread, which can leads to engine corruption and weird crashes. This would cause an exceptionincha future release.2 Stack: (3 0Corefoundation0x0000000183320f741484 1LIBOBJC. A.dylib0x0000000197f13f80Objc_exception_throw + About5 2Corefoundation0X0000000183320EA406 3Foundation0x000000018433a5d8 the7 4Foundation

Demand----------"requires AutoLayout to make three views on all devices always equal width1 "We know that fixing a control on a window requires a minimum of four constraints, so that every control needs to be constrained toIdea---can be adjusted to the same width based on the fixed control adaptive2 "Take lable as an example1/Three lable on storyboard and set color to differentiate2/Below we will constrain three lableHighFrom the parent view aboveFrom

In storyboard, if you want to set multiple buttons with AutoLayout in the same spacing, and adjust the spacing according to the width of the screen, I understand that there is no direct setup method. Only using the Storyboard+ code method to implement1, first place four buttons in storyboard, and select them at the same time2, set wide, high, supview the distance of the lower boundary and other constraintsFont3, select the first button when Setup is c

"AutoLayout Animation"For storyboard Each constraint, you can create a connection to the code by dragging the line like a control.A constraint is an object through which the constant property of the object can modify the number of points of the constraint.After the modification, the animation effect can be achieved by invoking the [Self.view layoutifneeded] method within the block of the UIView's Animatewithduration:: Method, which adjusts all the chi

The thing is this ....I have been used in a project masonry do AutoLayout, there is a gesturerreconizer bug, looking for a long time, found very strange a phenomenon:One of my view is like this.|--------------------------------------|| Uiviewcontroller.view || |----------| |--------------------|| | uiview1-| | Uiscrollview || |----------| | || | |-------------| || | | UIView2 | || | |-------------| || |--------------------||---------

Using SB to AutoLayout the content of Uicollectionviewcell, found a Xcode6.01 bug, that is, when you are bound to the Uicollectioncell, the real label on the simulator is centered, But the real machine is really not the center, then Google a bit, and found the problem, this is because using the iOS8 SDK compiled projects run in iOS 7 caused the Contentview size has not changed, one of the solutions: is to re-layoutsubviews the method in your definitio

IOS UIScrollView uses Autolayout and iosuiscrollview During the iteration and update of recent projects, you need to add a button in the previously written interface using Autolayout. After adding the button, the iPhone 5 and iPhone 4 are not displayed completely. after encountering the problem, I naturally thought of using UIScrollView, and soon I created a UIScrollView full screen, which included all the

IOS AutoLayout Automatic Layout intermediate development tutorial (5)-Modify the constraint value, delayed loading, iosautolayout How do I modify the value of the autolayout constraint? The previous article has discussed how to use storyboard to create constraints. However, in actual development, we often need to adapt to different screen sizes and system versions, in this case, we need to adjust our layo

Some beginners often use the AutoLayout, the effect is not very good, often there will be a situation of interface confusion.This article uses a small example to illustrate the use of AutoLayoutVery simple, just remember the rules can make the interface screen layout, suitable for various iphone phone screen1. Create a new Swift project (new project in single View application template)Set the default Viewcontroller in Main.storyboard to the iphone 4-i

button is displayed on the screen "outside."Put a segmented control on the newly created prototype cell, first adjust the AutoLayout constraint for segmented control, and make sure all the guides have been turned into blue running programs and get the result.Can see segmented control is not completely in the horizontal direction can be displayed, it looks like a part of the screen is displayed outside, at first it was strange that the result, obvious

When compared to people will often encounter the label or TextField display text view, display incomplete, or can not automatically change the length, automatically change the font settings:Today, let's show you how to get the label to fit a different width in AutoLayout:1. Automatically change the font:First set the label's constraints, including the width of the height, by default, your label is unchanged, but when you encounter more text, there wil