如何获得Android键盘的高度？

Question

如何获得Android键盘的高度？

我试试：

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

但总是得到0。

Answer 1

使用OnGlobalLayoutListener获取键盘高度或实现上面的代码段

• chatRootLayout是您的xml根目录布局

• 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);
    }
}