Android，更改进度对话框背景颜色？

Question

我有一个由java代码完全定义的进度对话框。我只是想改变背景颜色和文字颜色。我已经在stackoverflow中看到了其他帖子，比如添加style.xml等等，但都没有用。请不要将我推荐给其他帖子。该怎么办？ 我的代码听起来像这样：

 Class A extends Activity {
   ProgressDialog pd;
   Context context;
   public void onCreate(){
   context = A.this;
   pd = new ProgressDialog.show(context, "" , "Loading");
   }
 }

![A sample of progress dialog which i want. Actually i have it , but the problem is the background color which i want to be white.] 1

Answer 1

pd = new ProgressDialog.show(context, "" , "Loading");
pd.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.RED));

Answer 2

在您的代码中执行此操作：

Class A extends Activity {
   ProgressDialog pd;
   Context context;
   public void onCreate(){
   context = A.this;
   pd = new ProgressDialog(context, android.R.style.Theme_DeviceDefault_Light_Dialog_Alert);
   pd.setTitle("");
   pd.setMessage("Loading");
   pd.show();
   }
 }