获取控件大小和设置调整控件的位置XY示例

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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); 
} 
} 