Android得到控件在屏幕中的坐标
                 jopen
                 14年前
            
                    getLocationOnScreen
  
  getLocationInWindow 
  
  getLeft 
  
  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());    }      }  }   <?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>
