com.blankj.utilcode.utils

Class SizeUtils

java.lang.Object

com.blankj.utilcode.utils.SizeUtils

public class SizeUtils
extends java.lang.Object

     author: Blankj
     blog  : http://blankj.com
     time  : 2016/8/2
     desc  : 尺寸相关工具类
 

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	SizeUtils.onGetSizeListener 获取到View尺寸的监听

Method Summary

Modifier and Type	Method and Description
static float	applyDimension(int unit, float value, DisplayMetrics metrics) 各种单位转换
static int	dp2px(float dpValue) dp转px
static void	forceGetViewSize(View view, SizeUtils.onGetSizeListener listener) 在onCreate中获取视图的尺寸
static int	getMeasuredHeight(View view) 获取测量视图高度
static int	getMeasuredWidth(View view) 获取测量视图宽度
static int[]	measureView(View view) 测量视图尺寸
static int	px2dp(float pxValue) px转dp
static int	px2sp(float pxValue) px转sp
static int	sp2px(float spValue) sp转px

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

dp2px

public static int dp2px(float dpValue)

dp转px

Parameters:

dpValue - dp值

Returns:

px值

px2dp

public static int px2dp(float pxValue)

px转dp

Parameters:

pxValue - px值

Returns:

dp值

sp2px

public static int sp2px(float spValue)

sp转px

Parameters:

spValue - sp值

Returns:

px值

px2sp

public static int px2sp(float pxValue)

px转sp

Parameters:

pxValue - px值

Returns:

sp值

applyDimension

public static float applyDimension(int unit,
                                   float value,
                                   DisplayMetrics metrics)

各种单位转换

该方法存在于TypedValue

Parameters:

unit - 单位

value - 值

metrics - DisplayMetrics

Returns:

转换结果

forceGetViewSize

public static void forceGetViewSize(View view,
                                    SizeUtils.onGetSizeListener listener)

在onCreate中获取视图的尺寸

需回调onGetSizeListener接口，在onGetSize中获取view宽高

用法示例如下所示

 SizeUtils.forceGetViewSize(view, new SizeUtils.onGetSizeListener() {
     Override
     public void onGetSize(View view) {
         view.getWidth();
     }
 });
 

Parameters:

view - 视图

listener - 监听器

measureView

public static int[] measureView(View view)

测量视图尺寸

Parameters:

view - 视图

Returns:

arr[0]: 视图宽度, arr[1]: 视图高度

getMeasuredWidth

public static int getMeasuredWidth(View view)

获取测量视图宽度

Parameters:

view - 视图

Returns:

视图宽度

getMeasuredHeight

public static int getMeasuredHeight(View view)

获取测量视图高度

Parameters:

view - 视图

Returns:

视图高度