添加一個單選按鈕組到定製對話框

Question

我試圖動態單選按鈕，自定義對話框，但無法得到它在我的自定義對話框

final RadioButton[] rb = new RadioButton[5]; 
RadioGroup rg = new RadioGroup(this); 
rg.setOrientation(RadioGroup.VERTICAL); 

     // layout params to use when adding each radio button 
LinearLayout.LayoutParams layoutParams = new RadioGroup.LayoutParams(
       RadioGroup.LayoutParams.WRAP_CONTENT, 
       RadioGroup.LayoutParams.WRAP_CONTENT); 

LinearLayout ll2 = (LinearLayout) findViewById(R.id.linearMain); 

// add 5 radio buttons to the group 

for (int i = 0; i < 5; i++){ 
     rb[i] = new RadioButton(this); 
     String label = "item set" + i; 
     rb[i].setText(label); 
     rb[i].setId(i); 
     rg.addView(rb[i],layoutParams); 

     } 
ll2.addView(rg); 

-------------------------------------------------------------------- 

Context context=LocationActivity.this; 
dialog=new Dialog(context); 
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); 

dialog.setContentView(R.layout.custom_dialog); 
    ---------------------------------------------------------------------- 

Linearlayout2 is defined in custom_dialog.xml file. I must be doing something wrong but not able to figure it out. Other widgets are getting displayed except radiogroup buttons. 

任何指向這一問題appreicated增加。

謝謝！ SWZ

CUSTOM_DIALOG文件，如下：

它有2個TextView的部件並申報了RadioGroup中。我可以將相同的佈局成功添加到活動屏幕，但不能添加到自定義對話框。

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 
android:id="@+id/linlayoutBase" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
android:orientation="vertical" 
xmlns:android="http://schemas.android.com/apk/res/android" 
> 

    <LinearLayout 
     android:id="@+id/linearLayout3" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" > 

     <TextView 
      android:id="@+id/TextView03" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="10dip" 
      android:layout_marginRight="5dip" 
      android:text="Longitute: " 
      android:textSize="20dip" > 
     </TextView> 

     <TextView 
      android:id="@+id/TextView04" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="unknown" 
      android:textSize="20dip" > 
     </TextView> 
    </LinearLayout> 

    <LinearLayout 
      android:id="@+id/linearMain" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content"> 

    <RadioGroup 
      android:id="@+id/radiogroup" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      xmlns:android="http://schemas.android.com/apk/res/android" 
      android:orientation="vertical" 
    > 
    </RadioGroup> 

    </LinearLayout> 
</LinearLayout> 

Answer 1

看您發佈的XML，試試這個：

Context context=LocationActivity.this; 
dialog=new Dialog(context); 
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); 

View view = LayoutInflater.fromContext(context).inflate(R.layout.custom_dialog, null, false); 
RadioGroup rg = (RadioGroup) view.findViewById(R.id.radiogroup); 
RadioGroup.LayoutParams layoutParams = new RadioGroup.LayoutParams(
       RadioGroup.LayoutParams.WRAP_CONTENT, 
       RadioGroup.LayoutParams.WRAP_CONTENT); 

// add 5 radio buttons to the group 
RadioButton rb; 
for (int i = 0; i < 5; i++){ 
    rb = new RadioButton(context); 
    rb.setText("item set" + i); 
    rb.setId(i); 
    rg.addView(rb, layoutParams); 
} 

dialog.setContentView(view); 

我沒有看到你是如何改變你的對話框佈局。所以我膨脹了佈局，添加了RadioButtons，然後將完成的佈局傳遞給dialog。

此外，因爲linearMain只有一個孩子，您可以刪除此LinearLayout並簡單地使用radioGroup。