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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

ActionMenuView.LayoutParams, AppBarLayout.LayoutParams, RadioGroup.LayoutParams, TableLayout.LayoutParams, TableRow.LayoutParams

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：

Gravity

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