如何获取Android键盘的高度？

Question

如何获得Android键盘的高度？

我尝试：

KeyboardView keyboardView = new KeyboardView(_activity.getApplicationContext(), null);
Log.i("","xxx height " + keyboardCustom.mKeyboardView.getHeight());
            Log.i("","xxx height " + keyboardCustom.mKeyboardView.getBottom());

但是总是得到0。

Answer 1

使用OnGlobalLayoutListener来获取键盘高度或实现以上代码片段

• chatRootLayout是您的xml根布局

• 将此rootLayout作为checkKeyboardHeight中的parentLayout参数传递>

   private void checkKeyboardHeight(final View parentLayout)
      {
        chatRootLayout.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() 
        {
              @Override
              public void onGlobalLayout() 
              {
                      Rect r = new Rect();
  
                      chatRootLayout.getWindowVisibleDisplayFrame(r);
  
                      int screenHeight = chatRootLayout.getRootView().getHeight();
                      int keyboardHeight = screenHeight - (r.bottom);
  
                      if (previousHeightDiffrence - keyboardHeight > 50) 
                      {                           
                          // Do some stuff here
                      }
  
                      previousHeightDiffrence = keyboardHeight;
                      if (keyboardHeight> 100) 
                      {
                          isKeyBoardVisible = true;
                          changeKeyboardHeight(keyboardHeight);
                      } 
                      else
                      {
                          isKeyBoardVisible = false;
                      }
                  }
          });
  }
  这里是changeKeyboardHeight（）方法

  private void changeKeyboardHeight(int height) 
  {
      if (height > 100) 
      {
              keyboardHeight = height;
              LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, keyboardHeight);
              yourLayout.setLayoutParams(params);
      }
  }