ConstraintLayout中的chainstyle & guideline >

ConstraintLayout中的chainstyle & guideline

有时候容易忘记,摘抄记录一下。

参考博客:https://blog.csdn.net/cui130/article/details/89849807

1、chainstyle(链式)

**属性 **有水平和垂直之分:

  • layout_constraintHorizontal_chainStyle 水平方向
  • layout_constraintVertical_chainStyle 垂直方向

属性值 有三种:

  • spread (默认) 如下:

    • 默认模式如下:

    • 使用weight方式如下:(layout_width=0dp)

      添加属性layout_constraintHorizontal_weight ,同理也有垂直方向的,可以自己尝试

  • spread_inside

  • packed

    • 捆绑在一起居中显示

    • 偏移显示

      添加属性layout_constraintHorizontal_bias

2、guideline(辅助线)

属性 辅助线也有垂直和水平之分,使用属性 orientation 来确定方向

  • horizontal 辅助线为水平方向
  • vertical 辅助线为垂直方向

确定辅助线的位置有三种属性:

  • layout_constraintGuide_begin 水平方向为距离左边的距离;垂直方向为距离上边的距离

    app:layout_constraintGuide_begin="100dp"
    
  • layout_constraintGuide_end 水平方向为距离右边的距离;垂直方向为距离下边的距离

    app:layout_constraintGuide_percent="0.6"
    
  • layout_constraintGuide_percent 水平方向为从左向右占比;垂直方向为距离从上到下占比

    app:layout_constraintGuide_end="50dp"
    

上面举例如下:(垂直方向,水平方向同理)

3、代码如下:

<TextView    
          android:id="@+id/weightStart"    
          android:layout_width="0dp"    
          android:layout_height="30dp"    
          android:text="weightStart"    
          android:textColor="#ffffff"    
          android:background="#83BB96"    
          android:gravity="center"    
          android:layout_marginTop="10dp"    
          app:layout_constraintHorizontal_chainStyle="spread"   
          app:layout_constraintHorizontal_weight="1"    
          app:layout_constraintStart_toStartOf="parent"    
          app:layout_constraintEnd_toStartOf="@id/weightCenter"    
          app:layout_constraintTop_toTopOf="parent"/>

<TextView    
          android:id="@+id/weightCenter"    
          android:layout_width="0dp"    
          android:layout_height="30dp"    
          android:text="weightCenter"    
          android:textColor="#ffffff"    
          android:background="#567B63"    
          android:gravity="center"    
          app:layout_constraintHorizontal_weight="2"   
          app:layout_constraintTop_toTopOf="@+id/weightStart"    
          app:layout_constraintStart_toEndOf="@+id/weightStart"    
          app:layout_constraintEnd_toStartOf="@+id/weightEnd"/>

<TextView    
          android:id="@+id/weightEnd"    
          android:layout_width="0dp"    
          android:layout_height="30dp"    
          android:text="weightEnd"    
          android:textColor="#ffffff"    
          android:background="#669999"    
          android:gravity="center"   
          app:layout_constraintHorizontal_weight="3"   
		  app:layout_constraintTop_toTopOf="@+id/weightStart"    
		  app:layout_constraintStart_toEndOf="@id/weightCenter"    
          app:layout_constraintEnd_toEndOf="parent"/>

<TextView    
          android:id="@+id/insideStart"    
          android:layout_width="wrap_content"    
          android:layout_height="30dp"    
          android:text="insideStart"    
          android:textColor="#ffffff"    
          android:background="#83BB96"    
          android:gravity="center"    
          android:layout_marginTop="10dp"    
          app:layout_constraintHorizontal_chainStyle="spread_inside"   
          app:layout_constraintStart_toStartOf="parent"   
          app:layout_constraintEnd_toStartOf="@id/insideCenter"   
          app:layout_constraintTop_toBottomOf="@+id/weightStart"/>

<TextView    
          android:id="@+id/insideCenter"    
          android:layout_width="wrap_content"    
          android:layout_height="30dp"    
          android:text="insideCenter"   
          android:textColor="#ffffff"    
          android:background="#567B63"   
          android:gravity="center"   
          app:layout_constraintTop_toTopOf="@+id/insideStart"   
          app:layout_constraintStart_toEndOf="@+id/insideStart"   
          app:layout_constraintEnd_toStartOf="@+id/insideEnd"/>

<TextView    
          android:id="@+id/insideEnd"   
          android:layout_width="wrap_content"    
          android:layout_height="30dp"   
          android:text="insideEnd"   
          android:textColor="#ffffff"   
          android:background="#669999" 
          android:gravity="center"   
          app:layout_constraintTop_toTopOf="@+id/insideStart"   
          app:layout_constraintStart_toEndOf="@id/insideCenter"   
          app:layout_constraintEnd_toEndOf="parent"/>

<TextView   
          android:id="@+id/PackedStart"    
          android:layout_width="wrap_content"   
          android:layout_height="30dp"   
          android:text="PackedStart"  
          android:textColor="#ffffff"   
          android:background="#83BB96"  
          android:gravity="center"  
          android:layout_marginTop="10dp"   
          app:layout_constraintHorizontal_chainStyle="packed"   
          app:layout_constraintStart_toStartOf="parent"   
          app:layout_constraintEnd_toStartOf="@id/PackedCenter"   
          app:layout_constraintTop_toBottomOf="@+id/insideStart"/>

<TextView   
          android:id="@+id/PackedCenter"    
          android:layout_width="wrap_content"    
          android:layout_height="30dp"   
          android:text="PackedCenter" 
          android:textColor="#ffffff"   
          android:background="#567B63"   
          android:gravity="center"   
          app:layout_constraintTop_toTopOf="@+id/PackedStart"   
          app:layout_constraintStart_toEndOf="@+id/PackedStart"   
          app:layout_constraintEnd_toStartOf="@+id/PackedEnd"/>

<TextView   
          android:id="@+id/PackedEnd"    
          android:layout_width="wrap_content"  
          android:layout_height="30dp"   
          android:text="PackedEnd"    
          android:textColor="#ffffff"  
          android:background="#669999"  
          android:gravity="center"    
          app:layout_constraintTop_toTopOf="@+id/PackedStart"   
          app:layout_constraintEnd_toEndOf="parent"    
          app:layout_constraintStart_toEndOf="@+id/PackedCenter"/>

<TextView    
          android:id="@+id/PackBiasStart"   
          android:layout_width="wrap_content"  
          android:layout_height="30dp"   
          android:layout_marginTop="8dp"  
          android:background="#83BB96" 
          android:gravity="center" 
          android:text="PackBiasStart"   
          android:textColor="#ffffff"    
          app:layout_constraintHorizontal_chainStyle="packed"   
          app:layout_constraintHorizontal_bias="0.2"    
          app:layout_constraintStart_toStartOf="parent"   
          app:layout_constraintEnd_toStartOf="@id/PackBiasCenter"   
          app:layout_constraintTop_toBottomOf="@+id/PackedStart" />

<TextView   
          android:id="@+id/PackBiasCenter"    
          android:layout_width="wrap_content"  
          android:layout_height="30dp"   
          android:text="PackBiasCenter"  
          android:textColor="#ffffff"   
          android:background="#567B63"  
          android:gravity="center"   
          app:layout_constraintTop_toTopOf="@+id/PackBiasStart"    
          app:layout_constraintStart_toEndOf="@+id/PackBiasStart"    
          app:layout_constraintEnd_toStartOf="@+id/PackBiasEnd"/>

<TextView    
          android:id="@+id/PackBiasEnd"    
          android:layout_width="wrap_content"   
          android:layout_height="30dp"   
          android:text="PackBiasEnd"   
          android:textColor="#ffffff"  
          android:background="#669999" 
          android:gravity="center"   
          app:layout_constraintTop_toTopOf="@+id/PackBiasStart"   
          app:layout_constraintStart_toEndOf="@id/PackBiasCenter"   
          app:layout_constraintEnd_toEndOf="parent"/>

<TextView   
          android:id="@+id/SpredStart"   
          android:layout_width="wrap_content"  
          android:layout_height="30dp"   
          android:text="SpredStart"  
          android:textColor="#ffffff" 
          android:background="#83BB96"   
          android:gravity="center" 
          android:layout_marginTop="10dp"    
          app:layout_constraintHorizontal_chainStyle="spread"   
          app:layout_constraintStart_toStartOf="parent"   
          app:layout_constraintEnd_toStartOf="@id/SpredCenter"    
          app:layout_constraintTop_toBottomOf="@+id/PackBiasStart"/>

<TextView   
          android:id="@+id/SpredCenter"    
          android:layout_width="wrap_content"  
          android:layout_height="30dp"   
          android:text="SpredCenter"  
          android:textColor="#ffffff"   
          android:background="#567B63"  
          android:gravity="center"    
          app:layout_constraintTop_toTopOf="@+id/SpredStart"    
          app:layout_constraintStart_toEndOf="@+id/SpredStart"    
          app:layout_constraintEnd_toStartOf="@+id/SpredEnd"/>

<TextView 
          android:id="@+id/SpredEnd"   
          android:layout_width="wrap_content"   
          android:layout_height="30dp"  
          android:text="SpredEnd"  
          android:textColor="#ffffff"   
          android:background="#669999" 
          android:gravity="center"   
          app:layout_constraintTop_toTopOf="@+id/SpredStart"   
          app:layout_constraintStart_toEndOf="@id/SpredCenter"   
          app:layout_constraintEnd_toEndOf="parent"/>

<androidx.constraintlayout.widget.Guideline
           android:id="@+id/guideline1"
	   android:layout_width="wrap_content"
	   android:layout_height="wrap_content"
           android:orientation="vertical"
	   app:layout_constraintGuide_begin="100dp"/>

<TextView   
          android:id="@+id/guide1"   
          android:layout_width="wrap_content"    
          android:layout_height="30dp"   
          android:text="SpredEnd"   
          android:textColor="#ffffff" 
          android:background="#669999"  
          android:gravity="center"    
          app:layout_constraintEnd_toStartOf="@+id/guideline1"   
          app:layout_constraintBottom_toBottomOf="parent"/>

<androidx.constraintlayout.widget.Guideline 
		android:id="@+id/guideline2"                                       		   
                android:layout_width="wrap_content"    
                android:layout_height="wrap_content"   
 		android:orientation="vertical"  
		app:layout_constraintGuide_end="50dp"/>

<TextView    
          android:id="@+id/guide2"    
          android:layout_width="wrap_content"    
          android:layout_height="30dp"    
          android:text="SpredEnd"  
          android:textColor="#ffffff" 
          android:background="#669999"   
          android:gravity="center"    
          app:layout_constraintEnd_toStartOf="@+id/guideline2"    
          app:layout_constraintBottom_toBottomOf="parent"/>

<androidx.constraintlayout.widget.Guideline
		android:id="@+id/guideline3"    
		android:layout_width="wrap_content"     
		android:layout_height="wrap_content"    
		android:orientation="vertical"   
		app:layout_constraintGuide_percent="0.6"/>

<TextView    
          android:id="@+id/guide3"    
          android:layout_width="wrap_content"   
          android:layout_height="30dp"    
          android:text="SpredEnd"    
          android:textColor="#ffffff"   
          android:background="#669999" 
          android:gravity="center"     
          app:layout_constraintEnd_toStartOf="@+id/guideline3"    
          app:layout_constraintBottom_toBottomOf="parent"/>
posted @ 2020-02-14 20:00  sky-walker  阅读(3453)  评论(0编辑  收藏  举报