KeyboardUtil

最新推荐文章于 2024-09-01 09:29:50 发布

2015_Sky_Baby_Go

最新推荐文章于 2024-09-01 09:29:50 发布

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分类专栏：安卓工具

本文链接：https://blog.youkuaiyun.com/wangbadan007007/article/details/49121877

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/**
 *
 * Copyright (c) 2014 CoderKiss
 *
 * CoderKiss[AT]gmail.com
 *
 */

package com.kisstools.utils;

import android.app.Activity;
import android.view.View;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;

public class KeyboardUtil implements OnGlobalLayoutListener {
   static public interface KeyboardListener {
      public void onKeyboardVisible(boolean visible);
   }

   private int mHeight;
   private boolean mVisible;
   private View mRootView;
   private KeyboardListener mListener;

   public KeyboardUtil(Activity activity) {
      mVisible = false;
      mHeight = 0;
      if (activity == null) {
         return;
      }

      try {
         mRootView = activity.getWindow().getDecorView()
               .findViewById(android.R.id.content);
         mRootView.getViewTreeObserver().addOnGlobalLayoutListener(this);
      } catch (Exception e) {
         e.printStackTrace();
      }
   }

   public void setListener(KeyboardListener listener) {
      this.mListener = listener;
   }

   @Override
   public void onGlobalLayout() {
      if (mHeight == 0) {
         mHeight = mRootView.getMeasuredHeight();
         return;
      }

      if (mListener == null) {
         return;
      }

      int height = mRootView.getHeight();

      if (!mVisible && mHeight > (height + 100)) {
         mVisible = true;
         mListener.onKeyboardVisible(mVisible);
         mHeight = height;
      } else if (mVisible && mHeight < (height - 100)) {
         mVisible = false;
         mListener.onKeyboardVisible(mVisible);
         mHeight = height;
      }
   }
}