Android得到控件在屏幕中的坐标

getLocationOnScreen ，计算该视图在全局坐标系中的x，y值，（注意这个值是要从屏幕顶端算起，也就是索包括了通知栏的高度）//获取在当前屏幕内的绝对坐标 

getLocationInWindow ，计算该视图在它所在的widnow的坐标x，y值，//获取在整个窗口内的绝对坐标 (不是很理解= =、)

getLeft , getTop, getBottom, getRight, 这一组是获取相对在它父亲里的坐标

如果在Activity的OnCreate()事件输出那些参数，是全为0，要等UI控件都加载完了才能获取到这些。

 
package xiaosi.location;  
   
import android.app.Activity;  
import android.os.Bundle;  
import android.view.View;  
import android.view.View.OnClickListener;  
import android.widget.Button;  
import android.widget.ImageView;  
  
public class LocationActivity extends Activity {  
    /** Called when the activity is first created. */  
    private ImageView t = null;  
    private Button button = null;  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.main);  
          
        t = (ImageView)findViewById(R.id.l);  
        button = (Button)findViewById(R.id.button);  
        button.setOnClickListener(new buttonListener());  
    }     
    public class buttonListener implements OnClickListener{  
  
        public void onClick(View v)  
        {  
            int[] location = new int[2];  
            t.getLocationOnScreen(location);  
            int x = location[0];  
            int y = location[1];  
            System.out.println("x:"+x+"y:"+y);  
            System.out.println("图片各个角Left："+t.getLeft()+"Right："+t.getRight()+"Top："+t.getTop()+"Bottom："+t.getBottom());  
        }  
    }  
}  

　　

  view plaincopy

 

<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    android:orientation="vertical" >  
  
    <Button  
        android:id="@+id/button"  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"  
        android:text="button"/>  
    <ImageView  
        android:id="@+id/l"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:layout_gravity="center"  
        android:src="@drawable/a" />  
</LinearLayout>  

 

http://blog.csdn.net/sjf0115/article/details/7306284