android-constraintlayout

问题 In the Android Studio Layout Editor I see the words "pack" and "chain" with respect to a ConstraintLayout . I know they both have something to do with multiple views being connected to each other in a line, but their difference is not clear to me. What is the difference between "pack" and "chain"? 回答1: Short answer A Chain is a group of views that are bound together in a vertical or horizontal line. Pack means that the views should be kept very closely together, ie, touch each other

问题 I am developing news app and I want to implement constrainlayout inside CardView and achieve ui the same as image below but I could achieve what I want below my xml file where I have implemented constrainlayout inside cardview <TextView android:id="@+id/articleTitle" android:layout_width="0dp" android:layout_height="wrap_content" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="@+id/articleTitle" tools:ignore="NotSibling

问题 so the idea was to create a constraint layout containing several numbers of the same constraint layout as includes. Therefore I created a layout of my desire and include it several times. But for now all includes are just stacked on top of each other. But what I actual wanted, is that they are evenly vertically distributed across the screen. Isn't it possible to have constraints between includes? Here is how my current layout looks like. <?xml version="1.0" encoding="utf-8"?> <android.support

问题 so the idea was to create a constraint layout containing several numbers of the same constraint layout as includes. Therefore I created a layout of my desire and include it several times. But for now all includes are just stacked on top of each other. But what I actual wanted, is that they are evenly vertically distributed across the screen. Isn't it possible to have constraints between includes? Here is how my current layout looks like. <?xml version="1.0" encoding="utf-8"?> <android.support

问题 ConstraintLayout is powerful but tricky sometimes. I want to implement a layout with the ConstraintLayout which can be easily achieved with the LinearLayout . The Blue area is parent constraintLayout. The red part is LinearLayout. I want to convert this LinearLayout to ConstraintLayout by maintaining the following conditions All children (Buttons)'s width should match the widest child. The widest child is not fixed. It will be changed at runtime. The red box should remain to maintain wrap

问题 I am having a problem with constraint layout where the text in one text view reaching the second line will not push down another text view that is constrained to be below it, until the middle of the line. I have built a simple layout with three text views. The first text view sits on the left and has a set width. The second one sits to the right of this, between it and its parent. The third sits below the second and to the left of the first. I want it to look like: However if I remove the

问题 I'm trying to migrate from RelativeLayout to ConstraintLayout but I'm having problems adding the AdMob AdView to the bottom and the rest of the content above it. For example, using RelativeLayout was that simple. You only need to put android:layout_alignParentBottom="true" on the AdView and android:layout_above="@+id/adView" on the view which is containing the stuff. I'm trying to understand how to migrate this sample code and these two lines of code to the equivalent using a ConstraintLayout

问题 I'm trying to migrate from RelativeLayout to ConstraintLayout but I'm having problems adding the AdMob AdView to the bottom and the rest of the content above it. For example, using RelativeLayout was that simple. You only need to put android:layout_alignParentBottom="true" on the AdView and android:layout_above="@+id/adView" on the view which is containing the stuff. I'm trying to understand how to migrate this sample code and these two lines of code to the equivalent using a ConstraintLayout

问题 I currently using constraint-layout by the following lib implementation 'com.android.support.constraint:constraint-layout:1.0.2' By update warning in the android studio, I Update this to implementation 'com.android.support.constraint:constraint-layout:1.1.0' After that whenever I try to build or run the project I got the following issue (See stack trace) java.lang.AssertionError: TOP at android.support.constraint.solver.widgets.Guideline.getAnchor(Guideline.java:159) at android.support

问题 I've been trying to make a GUI for my app (using ConstraintLayout) where I have images that act like buttons aligned, however, those buttons (or anything actually) have this weird issue where even if I move (and save) the constraint position, it just goes back to some number (in this case 16). What am I doing wrong here? What causes this/Why is the editor resetting the position? http://i.imgur.com/OFndFb7.gifv (GIF - 40s) Versions: ConstraintLayout for Android - v 1.0.2 Android Studio - 2.3.3