Android实现微信朋友圈评论EditText效果

getWindow().getDecorView().getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
  @Override
  public void onGlobalLayout() {
  // 这里可以监听到键盘显示与隐藏时界面可视区域的变化
  Rect rect = new Rect();
  View decorView = getWindow().getDecorView();
  decorView.getWindowVisibleDisplayFrame(rect);
  int displayHeight = rect.bottom - rect.top;
  // 拿到键盘的高度，可能会有误差，需要优化
  keyboardHeight = decorView.getHeight() - displayHeight;
  if (displayHeight * 1.0 / decorView.getHeight() > 0.8) {
   dialog.dismiss();
  }
  }
 });

private void showInputComment(View commentView, final int position) {
   // 拿到评论按钮在屏幕中的坐标
   final int rvInputY = getY(commentView);
   // 拿到评论按钮高度
   final int rvInputHeight = commentView.getHeight();
   dialog.show();

   handler.postDelayed(new Runnable() {
    @Override
    public void run() {
     int dialogY = getY(dialog.findViewById(R.id.dialog_layout_comment));
     // 滑动列表
     rv.smoothScrollBy(0, rvInputY - keyboardHeight + dialogY + rvInputHeight);
    }
   }, 300);
  }

  /**
   * 拿到View在屏幕中的坐标
   * @param commentView
   * @return
   */
  private int getY(View commentView) {
   int[] outLocation = new int[2];
   commentView.getLocationOnScreen(outLocation);
   return outLocation[1];
  }