relativeLayout.RIGHT_OF 不起作用

我正在尝试在现有的相对布局中以编程方式创建一个文本视图和一个按钮。这个想法是将textview放在parentView（relativeLayout）的左上角，然后将按钮添加到textView的右侧。但在应用程序中，它们看起来像是在同一个地方。该按钮位于textView的前面，而不是右侧。请给我一些建议。

代码：

   TextView textView = new TextView(getActivity().getApplicationContext());
   textView.setText("...");
   textView.setTextColor(Color.GRAY);
   int id = 0;
   textView.setId(id);
   final RelativeLayout.LayoutParams params =
                        new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,
                                RelativeLayout.LayoutParams.WRAP_CONTENT);
   params.addRule(RelativeLayout.ALIGN_PARENT_TOP);
   params.setMargins(16, 16, 0, 0);
   textView.setLayoutParams(params);
   notificationContentLayout.addView(textView, params);

   Button customerButton = new Button(getActivity().getApplicationContext());
   customerButton.setText("...");
   customerButton.setTextColor(Color.parseColor("#00b3ff"));
   customerButton.setBackgroundColor(Color.TRANSPARENT);
   id = id + 1;
   customerButton.setId(id);

   final RelativeLayout.LayoutParams paramsForButton =
                        new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,
                                RelativeLayout.LayoutParams.WRAP_CONTENT);
   paramsForButton.addRule(RelativeLayout.RIGHT_OF, textView.getId());
   paramsForButton.addRule(RelativeLayout.ALIGN_PARENT_TOP); // with or without that rule everything is the same

   // paramsForButton.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);

   paramsForButton.setMargins(10,0, 16, 0);
   customerButton.setLayoutParams(paramsForButton);
   notificationContentLayout.addView(customerButton, paramsForButton);

For RelativeLayout.LayoutParams rules, 0 means false，并且仅适用于不涉及兄弟姐妹的规则Views，例如CENTER_IN_PARENT。既然你已经设置了TextView的 ID 至0, the RIGHT_OF您添加的规则将被忽略，因为false这没有意义。

要解决这个问题，只需设置TextView的 ID 为任意正数int价值;例如。，1.