WindowManager.LayoutParams（下）

WindowManager.LayoutParams（下）  

2011-08-07 08:08:54|  分类： Android基础 |  标签：windowmanager   |字号 订阅

本文参照自：http://developer./reference/android/view/WindowManager.LayoutParams.html

BRIGHTNESS系列

该系列主要用于设置window的brightness(screenBrightness/buttonBrightness)。我们可以通过WindowManager.LayoutParams的screenBrightness/buttonBrightness变量直接进行设置。

其中screenBrightness表示屏幕的brightness,而buttonBrightness表示一般按键和键盘按键的brightness

float	BRIGHTNESS_OVERRIDE_FULL	Value for screenBrightness and buttonBrightness  indicating that the screen or button backlight brightness should be set to the hightest value when this window is in front. 把brightness(screenBrightness/buttonBrightness)设置到最高值。
float	BRIGHTNESS_OVERRIDE_NONE	Default value for screenBrightness and buttonBrightness indicating that the brightness value is not overridden for this window and normal brightness policy should be used. 不对brightness(screenBrightness/buttonBrightness)重新进行设置，采用默认的普通值。
float	BRIGHTNESS_OVERRIDE_OFF	Value for screenBrightness and buttonBrightness indicating that the screen or button backlight brightness should be set to the lowest value when this window is in front. 把brightness(screenBrightness/buttonBrightness)设置到最低值。

changed系列

该系列主要用于 int copyFrom (WindowManager.LayoutParams o)函数中。

在函数中，首先将用参数中传入的WindowManager.LayoutParams的信息复制到本WindowManager.LayoutParams中，然后返回一个整数，以bite形式表示调用该函数后WindowManager.LayoutParams的哪些信息发送了变化

int	ALPHA_CHANGED	用于表示成员变量alpha是否被改变
int	ANIMATION_CHANGED	用于表示成员变量windowAnimations是否被改变
int	DIM_AMOUNT_CHANGED	用于表示成员变量dimAmount是否被改变
int	FLAGS_CHANGED	用于表示成员变量flags是否被改变
int	LAYOUT_CHANGED	用于表示layout是否被改变.这里的layout是指以下变量所包含的信息： width，height,x,y, verticalMargin，verticalWeight,horizontalMargin，horizontalWeight
int	SCREEN_BRIGHTNESS_CHANGED	用于表示brightness是否被改变. 这里的brightness是指以下变量对应的信息：screenBrightness，buttonBrightness
int	SCREEN_ORIENTATION_CHANGED	用于表示成员变量screenOrientation是否被改变
int	SOFT_INPUT_MODE_CHANGED	用于表示成员变量softInputMode是否被改变
int	TITLE_CHANGED	用于表示成员变量title是否被改变
int	TYPE_CHANGED	用于表示成员变量type是否被改变
int	FORMAT_CHANGED	Constant Value: 8 (0x00000008) 用于表示成员变量format是否被改变

成员变量

继承于ViewGroup.LayoutParams的成员变量

public int	height	Information about how tall the view wants to be.
public LayoutAnimationController.AnimationParameters	layoutAnimationParameters	Used to animate layouts.
public int	width	Information about how wide the view wants to be.

自身的成员变量

public static final Creator<WindowManager.LayoutParams>	CREATOR
public float	alpha	An alpha value to apply to this entire window.
public float	buttonBrightness	This can be used to override the standard behavior of the button and keyboard backlights.
public float	dimAmount	When FLAG_DIM_BEHIND is set, this is the amount of dimming to apply.
public int	flags	Various behavioral options/flags.
public int	format	The desired bitmap format.
public int	gravity	Placement of window within the screen as per Gravity.
public float	horizontalMargin	The horizontal margin, as a percentage of the container's width, between the container and the widget.
public float	horizontalWeight	Indicates how much of the extra space will be allocated horizontally to the view associated with these LayoutParams.
public int	memoryType	This field is deprecated. this is ignored
public String	packageName	Name of the package owning this window.
public float	screenBrightness	This can be used to override the user's preferred brightness of the screen.
public int	screenOrientation	Specific orientation value for a window.
public int	softInputMode	Desired operating mode for any soft input area.
public int	systemUiVisibility	Control the visibility of the status bar.
public IBinder	token	Identifier for this window.
public int	type	The general type of window.
public float	verticalMargin	The vertical margin, as a percentage of the container's height, between the container and the widget.
public float	verticalWeight	Indicates how much of the extra space will be allocated vertically to the view associated with these LayoutParams.
public int	windowAnimations	A style resource defining the animations to use for this window.
public int	x	X position for this window.
public int	y	Y position for this window.

成员函数

ublic Methods
final int	copyFrom(WindowManager.LayoutParams o)
String	debug(String output) Returns a String representation of this set of layout parameters.
int	describeContents() Describe the kinds of special objects contained in this Parcelable's marshalled representation.
final CharSequence	getTitle()
static boolean	mayUseInputMethod(int flags) Given a particular set of window manager flags, determine whether such a window may be a target for an input method when it has focus.
final void	setTitle(CharSequence title)
String	toString() Returns a string containing a concise, human-readable description of this object.
void	writeToParcel(Parcel out, int parcelableFlags) Flatten this object in to a Parcel.

结束！