以編程方式RelativeLayout.ALIGN_RIGHT與給定的View.getId（）不起作用

Question

我嘗試以編程方式將TextView對齊按鈕的右側/底部邊緣。 但是，這種靜態的XML代碼工作：

<RelativeLayout 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content"> 

    <Button 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="New Button" 
     android:id="@+id/button" /> 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="New Text" 
     android:id="@+id/textView10" 
     android:layout_alignRight="@+id/button" 
     android:layout_alignBottom="@+id/button" /> 
</RelativeLayout> 

如果我試圖通過代碼來做到這一點，它不工作。 TextView默認情況下是頂部/左邊對齊。 的RelativeLayout.ALIGN_RIGHT和ALIGN_BOTTOM似乎被忽略......

  // Adding the LinearLayout 
    LinearLayout linearLayout = new LinearLayout(getContext()); 
    linearLayout.setOrientation(LinearLayout.VERTICAL); 
    linearLayout.setLayoutParams(new LinearLayout.LayoutParams(
      LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, 1.0f)); 

      final LinearLayout.LayoutParams LLParamsCont = new LinearLayout.LayoutParams(
        LinearLayout.LayoutParams.WRAP_CONTENT, Utils.dpToPx(getContext(), 50)); 

        // Adding the RelativeLayout 
     RelativeLayout relativeLayout = new RelativeLayout(getContext()); 
     relativeLayout.setLayoutParams(LLParamsCont); 

        // Adding the Button 
     Button button = new Button(getContext()); 
     button.setLayoutParams(new RelativeLayout.LayoutParams(
       RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT)); 
     relativeLayout.addView(button) 

        // Adding the TextView 
     TextView textView = new TextView(getContext()); 
     textView.setGravity(Gravity.CENTER_HORIZONTAL); 
     RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(
       Utils.dpToPx(getContext(), 20), 
       Utils.dpToPx(getContext(), 20)); 
     layoutParams.addRule(RelativeLayout.ALIGN_RIGHT, button.getId());  // <== THIS DOESN'T SEEM TO WORK 
     layoutParams.addRule(RelativeLayout.ALIGN_BOTTOM, button.getId());  // <== THIS DOESN'T SEEM TO WORK 
     textView.setLayoutParams(layoutParams); 
     textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 12); 
     textView.setGravity(Gravity.CENTER); 
     textView.setBackgroundResource(R.drawable.score_count); 
     relativeLayout.addView(textView); 

     linearLayout.addView(relativeLayout) 

TextView的是不beeing對齊按鈕右側/底線。

有沒有人有一個想法，爲什麼這是不工作的代碼，但與靜態XML？ 我錯過了什麼？

謝謝！

與問候， 克林斯曼

Answer 1

嘗試設置一個唯一的ID按鈕之前創建的規則（更多信息here）。

Button button = new Button(getContext()); 
button.setId(View.generateViewId()); //this utility method is API 17! 

Answer 2

我發現這個職位的解決方案： How to lay out Views in RelativeLayout programmatically?

我需要設置與SETID（INT）到Button一個id，然後它工作。