本文部分內容來自於網路，點擊瀏覽原文 app:layout_constraintLeft_toLeftOf //Constrains the left side of a child to the left side of a target child (contains the target ch ...
本文部分內容來自於網路，點擊瀏覽原文
app:layout_constraintLeft_toLeftOf
//Constrains the left side of a child to the left side of a target child (contains the target child id).
表示此控制項的左邊框與某個控制項的左邊框對齊或者在其右邊
視圖1
代碼1
app:layout_constraintLeft_toRightOf
//Constrains the left side of a child to the right side of a target child (contains the target child id).
表示此控制項的左邊框與某個控制項的右邊框對齊或者在其右邊
視圖2
app:layout_constraintRight_toLeftOf
//Constrains the right side of a child to the left side of a target child (contains the target child id).
表示此控制項的右邊框與某個控制項的左邊框對齊或在其左邊
視圖3
app:layout_constraintRight_toRightOf
//Constrains the right side of a child to the right side of a target child (contains the target child id).
表示此控制項的右邊框與某個控制項的右邊框對齊或在其左邊
視圖4
app:layout_constraintTop_toTopOf
//Constrains the top side of a child to the top side of a target child (contains the target child id).
表示此控制項的頂部邊框與某個控制項的頂部邊框水平對齊或在其下邊
視圖5
app:layout_constraintTop_toBottomOf
//Constrains the top side of a child to the bottom side of a target child (contains the target child id).
表示此控制項的頂部邊框與某個控制項的底部邊框水平對齊或在其下邊
視圖6
app:layout_constraintBottom_toTopOf
//Constrains the bottom side of a child to the top side of a target child (contains the target child id).
表示此控制項的底部邊框與某個控制項的頂部邊框水平對齊或其上邊
視圖7
app:layout_constraintBottom_toBottomOf
//Constrains the bottom side of a child to the bottom side of a target child (contains the target child id).
表示此控制項的底部邊框與某個控制項的底部邊框水平對齊或其上邊
視圖8
app:layout_constraintBaseline_toBaselineOf
//Constrains the baseline of a child to the baseline of a target child (contains the target child id).
表示此控制項與某個控制項水平對齊
視圖9
代碼2
app:layout_editor_absoluteX
//The design time location of the left side of the child.
表示此控制項在佈局中X軸的絕對坐標點。如圖代碼3
代碼3
app:layout_editor_absoluteY
//The design time location of the right side of the child.
表示此控制項在佈局中Y軸的絕對坐標點。如圖代碼3
app:layout_constraintGuide_begin
//The distance of child (guideline) to the top or left edge of its parent.
表示在佈局中引導線距頂部或左邊框的距離（如：20dp表示距頂部或者左邊框20dp）
視圖10
代碼10
app:layout_constraintGuide_end
//The distance of child (guideline) to the top or left edge of its parent.
表示在佈局中引導線距底部的距離（如：10dp表示距頂部10dp）
app:layout_constraintGuide_percent
//The ratio of the distance to the parent's sides
表示在整個佈局中引導線距離左邊框的百分百（如：app:layout_constraintGuide_percent="0.5"表示距離左邊框50%的位置）
視圖11
代碼11
app:layout_constraintStart_toEndOf
//Constrains the start side of a child to the end side of a target child (contains the target child id).
表示此控制項的左邊界在某個控制項右邊界的右邊，及表示此控制項在某個控制項的右邊
視圖12
app:layout_constraintStart_toStartOf
//Constrains the start side of a child to the start side of a target child (contains the target child id).
表示此控制項的左邊界與某個控制項的左邊界在同一垂直線上
視圖13
app:layout_constraintEnd_toStartOf
//Constrains the end side of a child to the start side of a target child (contains the target child id).
表示此控制項的右邊界與某個控制項的左邊界在同一垂直線上
視圖14
app:layout_constraintEnd_toEndOf
//Constrains the end side of a child to the end side of a target child (contains the target child id).
表示此控制項的右邊界與某個控制項的右邊界對齊
視圖15
app:layout_constraintHorizontal_bias
//The ratio between two connections when the left and right (or start and end) sides are constrained.
表示此控制項在佈局中的水平方向上的偏移百分百。如視圖16，代碼16
視圖16
app:layout_constraintVertical_bias
//The ratio between two connections when the top and bottom sides are constrained.
表示此控制項在佈局中的的垂直方向上的偏移百分百。如視圖16，代碼16
代碼16
app:layout_constraintDimensionRatio
//The child's side to constrain using dimensRatio.
表示兩個控制項的縱橫比，而使用則需要把寬（layout_width）或者高（layout_height）設置為0dp，根據另一個屬性和比例, 計算當前屬性, 如兩個圖片控制項的顯示大小，app:layout_constraintDimensionRatio="4:3"；
視圖13
app:layout_goneMarginLeft
//The left margin to use when the target is gone.
app:layout_goneMarginTop
//The top margin to use when the target is gone.
app:layout_goneMarginRight
//The right margin to use when the target is gone
app:layout_goneMarginBottom
//The bottom margin to use when the target is gone.
app:layout_goneMarginStart
//The start margin to use when the target is gone.
app:layout_goneMarginEnd
//The end margin to use when the target is gone.
