android - 在自定义进度条中，白色背景在 Android 中显示。如何删除它？

Question

我正在使用一个基本上会旋转的小图像/图标制作自定义进度条。但在背景中有白色补丁或背景正在显示。我在这里附上了图片..

我为此使用了以下代码:

自定义对话框.java

 public class CustomDialog extends Dialog{

    public Activity c;
     public CustomDialog(Activity a) {
            super(a);
            // TODO Auto-generated constructor stub
            this.c = a;
          }

     public CustomDialog(Activity a, int s) {
            super(a, s);
            // TODO Auto-generated constructor stub
            this.c = a;
          }

     @Override
      protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.progressbar);
        setCancelable(true);
      }

}

进度条.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@android:color/transparent"
    android:gravity="center"
    android:orientation="vertical" >

    <ProgressBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:indeterminate="true"
        android:background="@android:color/transparent"
        android:indeterminateDrawable="@drawable/my_progress_interminate" >
    </ProgressBar>

</RelativeLayout>

my_progress_interminate.xml

<?xml version="1.0" encoding="utf-8"?>
<animated-rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:drawable="@drawable/sai_icon" 
    android:pivotX="50%"
    android:pivotY="50%" />

我怎样才能去掉这里的白色背景..请帮忙。

Answer 1

这对我有用。将其添加到对话框的 onCreate 中。

getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));