qml_position

Border.qml
import Qt.Quick 2.5
Rectangle{
        48
        height: 48
        color: "#00bde3"
        border.color:Qt.lighter(color)  //边框颜色
}

-----------------
Column.qml
{
  id:root
   120
  height: 240
  
  Column{     //把子项放一行
    id: row
    anchors.centerIn: parent
    spacing: 8
    RedSquare{}
    GreenSquare{96;}
    BlueSquare{}
  }
  
}
--------------------

BrightSquare{
    id:root
     160
    height: 160
    
    Flow{  //将子项 并排放置  必要时进行包装
        anchors.fill: parent
        anchors.margins:20
        spacing: 20
        RedSquare {}
        BlueSquare{}
         GreenSquae{}
         
    
    }
}
--------------------
BrightSquare {
    id: root
    160
    height:160
    
    Grid {
        id: grid
        rows: 2
        columns:2 
        anchors.centerIn: parent
        spacing: 8
        RedSquare}{
        RedSquare{}
        RedSquare {}
        
    }
}


-------------------
BrightSquare {

    id: root
     800
    height: 680
    
    DarkSquare {
        id: container
         800
        height: 480
        //声明变量
        property int  marginTop: 16
        property int  marginRight: 32
        property int marginBottom: marginTop
        property int marginLeft: marginRight
        property int columns: 12
        property int rows: 8
        property int spcing: 12
        
        property int cell 64
        property int cellHeight: 64
        
        
        Grid{  //网格
            anchors.fill: parent
            anchors.topMargin: parent.marginTop
            anchors.rightMargin: parent.marginRight
            anchors.bottomMargin: parent.marginBootom
            anchors.leftMargin: parent.marginLeft
            spacing: parent.spacing
            
            columns: parent.columns    //列数
            Repeater{  //实例许多基于项组件
                model: container.columns* container.rows
                RedSquare{
                    container.cellwidth
                    height: container.cellHeight
                }
            }
        }
        
        Component.onCompleted: {  //当对象实例化完成 发出的信号
            print("");
            console.log("")
        }
        
    }
    
    }


Column{
     240
    height: 120
    GreenSquare{  //一行
        height: parent.height*0.2;parent.width
        
    }
    Row
    {
        height: parent.height*0.6;  parent.width   //两个占一行
        BlueSquare { parent.width*0.4; height: parent.height}
        BlueSquare { parent.width* 0.6;height: parent.height}
    }
    GreenSquare   //占一行
    {
        height: parent.height*0.2;  parent.width
    }
}

---------------.qml

BrightSquare
{
    id:root
     row.childrenRect.with + 20* margins
    height: row.childrenRect.height + 20*margins
    property int margins: 20  //局部变量
    
    Row{
        id: row
        anchors.fill: parent
        anchors.margins: parent.margins
        spacing: root.margins/2
        
        RedSquare {}
        RedSquare {}
        RedSquare {}
        
    }
    
}


-----------------
DarSquare {
    id: root
     252
    height: 252
    
    property variant colorArray:["#00dbe3","#671111","#es7025"]  //颜色数组

    Grid {
        anhcors.fill: parent  
        anchors.margins: 8    //边距
        spacing: 4  
        Repeater {    //
            model: 16  //产生实例的数量
            Rectangle {
                 56
                height: 56
                
                property int colorIndex: Math.floor(Math.random()*3)
                color: root.colorArray[colorIndex]
                border.color: Qt.lighter(color)
                Text{ 
                anchors.centerIn:parent
                color: "#f0f0f0"
                
                text:"Cell"+index
                    
                }
                
            }
            
        }
    
    }
}