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Added in API level 1

LinearLayout.LayoutParams

public static class LinearLayout.LayoutParams
extends ViewGroup.MarginLayoutParams

java.lang.Object
   ↳ android.view.ViewGroup.LayoutParams
     ↳ android.view.ViewGroup.MarginLayoutParams
       ↳ android.widget.LinearLayout.LayoutParams
Known Direct Subclasses


与ViewLinearLayout相关联的每个孩子的布局信息。

Summary

XML attributes

android:layout_gravity Standard gravity constant that a child supplies to its parent. 
android:layout_weight  

Inherited XML attributes

From class android.view.ViewGroup.MarginLayoutParams
From class android.view.ViewGroup.LayoutParams

Inherited constants

From class android.view.ViewGroup.LayoutParams

Fields

public int gravity

与这些LayoutParams相关的视图的重力。

public float weight

指示LinearLayout中多少额外空间将分配给与这些LayoutParams关联的视图。

Inherited fields

From class android.view.ViewGroup.MarginLayoutParams
From class android.view.ViewGroup.LayoutParams

Public constructors

LinearLayout.LayoutParams(Context c, AttributeSet attrs)

LinearLayout.LayoutParams(int width, int height)

LinearLayout.LayoutParams(int width, int height, float weight)

用指定的宽度,高度和重量创建一组新的布局参数。

LinearLayout.LayoutParams(ViewGroup.LayoutParams p)

LinearLayout.LayoutParams(ViewGroup.MarginLayoutParams source)

LinearLayout.LayoutParams(LinearLayout.LayoutParams source)

复制构造函数。

Public methods

String debug(String output)

返回此组布局参数的字符串表示形式。

Inherited methods

From class android.view.ViewGroup.MarginLayoutParams
From class android.view.ViewGroup.LayoutParams
From class java.lang.Object

XML attributes

android:layout_gravity

标准重力常数,小孩提供给其父母。 定义子视图应如何在其封闭布局中定位在X轴和Y轴上。

必须是以下常量值中的一个或多个(用'|'分隔)。

Constant Value 描述
top 0x30 Push object to the top of its container, not changing its size.
bottom 0x50 Push object to the bottom of its container, not changing its size.
left 0x03 Push object to the left of its container, not changing its size.
right 0x05 Push object to the right of its container, not changing its size.
center_vertical 0x10 Place object in the vertical center of its container, not changing its size.
fill_vertical 0x70 Grow the vertical size of the object if needed so it completely fills its container.
center_horizontal 0x01 Place object in the horizontal center of its container, not changing its size.
fill_horizontal 0x07 Grow the horizontal size of the object if needed so it completely fills its container.
center 0x11 Place the object in the center of its container in both the vertical and horizontal axis, not changing its size.
fill 0x77 Grow the horizontal and vertical size of the object if needed so it completely fills its container.
clip_vertical 0x80 Additional option that can be set to have the top and/or bottom edges of the child clipped to its container's bounds. The clip will be based on the vertical gravity: a top gravity will clip the bottom edge, a bottom gravity will clip the top edge, and neither will clip both edges.
clip_horizontal 0x08 Additional option that can be set to have the left and/or right edges of the child clipped to its container's bounds. The clip will be based on the horizontal gravity: a left gravity will clip the right edge, a right gravity will clip the left edge, and neither will clip both edges.
start 0x00800003 Push object to the beginning of its container, not changing its size.
end 0x00800005 Push object to the end of its container, not changing its size.

这对应于全局属性资源符号 layout_gravity

android:layout_weight

Fields

gravity

Added in API level 1
int gravity

与这些LayoutParams相关的视图的重力。

也可以看看:

weight

Added in API level 1
float weight

指示LinearLayout中多少额外空间将分配给与这些LayoutParams关联的视图。 如果不应拉伸视图,请指定0。 否则,额外像素将在所有重量大于0的视图中按比例分配。

Public constructors

LinearLayout.LayoutParams

Added in API level 1
LinearLayout.LayoutParams (Context c, 
                AttributeSet attrs)

Parameters
c Context
attrs AttributeSet

LinearLayout.LayoutParams

Added in API level 1
LinearLayout.LayoutParams (int width, 
                int height)

Parameters
width int
height int

LinearLayout.LayoutParams

Added in API level 1
LinearLayout.LayoutParams (int width, 
                int height, 
                float weight)

用指定的宽度,高度和重量创建一组新的布局参数。

Parameters
width int: the width, either MATCH_PARENT, WRAP_CONTENT or a fixed size in pixels
height int: the height, either MATCH_PARENT, WRAP_CONTENT or a fixed size in pixels
weight float: the weight

LinearLayout.LayoutParams

Added in API level 1
LinearLayout.LayoutParams (ViewGroup.LayoutParams p)

Parameters
p ViewGroup.LayoutParams

LinearLayout.LayoutParams

Added in API level 1
LinearLayout.LayoutParams (ViewGroup.MarginLayoutParams source)

Parameters
source ViewGroup.MarginLayoutParams

LinearLayout.LayoutParams

Added in API level 19
LinearLayout.LayoutParams (LinearLayout.LayoutParams source)

复制构造函数。 克隆源的宽度,高度,边距值,重量和重力。

Parameters
source LinearLayout.LayoutParams: The layout params to copy from.

Public methods

debug

Added in API level 1
String debug (String output)

返回此组布局参数的字符串表示形式。

Parameters
output String: the String to prepend to the internal representation
Returns
String a String with the following format: output + "ViewGroup.LayoutParams={ width=WIDTH, height=HEIGHT }"

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