Android获取窗体信息的Util方法

Android获取窗体信息的Util方法，方法很简单，这里就不多废话了，直接上代码

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;
  }
}

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