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获取控件大小和设置调整控件的位置XY示例

2019-10-24 20:45:29
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我需要的设置控件相对屏幕左上角的X 、Y位置,而不是自己本身位置的偏移,下面与大家介绍下怎么获取设置控件的信息
 
网上很多人对设置控件的位置都使用view.setPadding(left, top, right, bottom) ,其实这玩意很差劲,它是设置自己本身位置的偏移,我们很少需要这种效果,我需要的设置控件相对屏幕左上角的X 、Y位置。众里寻他千百度,蓦然回首,那人却在灯火阑珊处! 
复制代码代码如下:

import android.view.View; 
import android.view.ViewGroup.MarginLayoutParams; 
import android.widget.RelativeLayout; 
/* 
* 获取、设置控件信息 
*/ 
public class WidgetController { 
/* 
* 获取控件宽 
*/ 
public static int getWidth(View view) 

int w = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED); 
int h = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED); 
view.measure(w, h); 
return (view.getMeasuredWidth()); 

/* 
* 获取控件高 
*/ 
public static int getHeight(View view) 

int w = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED); 
int h = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED); 
view.measure(w, h); 
return (view.getMeasuredHeight()); 


/* 
* 设置控件所在的位置X,并且不改变宽高, 
* X为绝对位置,此时Y可能归0 
*/ 
public static void setLayoutX(View view,int x) 

MarginLayoutParams margin=new MarginLayoutParams(view.getLayoutParams()); 
margin.setMargins(x,margin.topMargin, x+margin.width, margin.bottomMargin); 
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(margin); 
view.setLayoutParams(layoutParams); 

/* 
* 设置控件所在的位置Y,并且不改变宽高, 
* Y为绝对位置,此时X可能归0 
*/ 
public static void setLayoutY(View view,int y) 

MarginLayoutParams margin=new MarginLayoutParams(view.getLayoutParams()); 
margin.setMargins(margin.leftMargin,y, margin.rightMargin, y+margin.height); 
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(margin); 
view.setLayoutParams(layoutParams); 

/* 
* 设置控件所在的位置YY,并且不改变宽高, 
* XY为绝对位置 
*/ 
public static void setLayout(View view,int x,int y) 

MarginLayoutParams margin=new MarginLayoutParams(view.getLayoutParams()); 
margin.setMargins(x,y, x+margin.width, y+margin.height); 
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(margin); 
view.setLayoutParams(layoutParams); 


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