Android获取窗体信息的Util方法

package com.wangyi.tools; import android.app.Activity;
import android.util.DisplayMetrics; public class DisplayUtils { private static DisplayUtils instance;
private Activity mActivity;
private DisplayUtils(Activity mActivity){
this.mActivity=mActivity;
}
public static DisplayUtils getInstance(Activity mActivity){
if(instance==null){
instance=new DisplayUtils(mActivity);
}
return instance;
}
public final int[] getScreenSize(){
int[] size=new int[2];
DisplayMetrics dm = new DisplayMetrics();
mActivity.getWindowManager().getDefaultDisplay().getMetrics(dm);
size[0]=dm.widthPixels;
size[1]=dm.heightPixels;
return size;
}
public final static int getWindowWidth(Activity mActivity) {
DisplayMetrics dm = new DisplayMetrics();
mActivity.getWindowManager().getDefaultDisplay().getMetrics(dm);
return dm.widthPixels;
} public final static int getWindowHeight(Activity mActivity) {
DisplayMetrics dm = new DisplayMetrics();
mActivity.getWindowManager().getDefaultDisplay().getMetrics(dm);
return dm.heightPixels;
}
}