android rounded rectangle without background straight-edge rectangle

I'm trying to make a dialog that appears as a rounded rectangle. I'm doing this by specifying the following shape xml as the background for the dialo开发者_如何学JAVAg layout.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <solid    android:color="#FFFFFF"/>
    <corners  android:radius="40dp"/>
    <padding  android:left="10dp"
          android:right="10dp"
          android:top="10dp"
          android:bottom="10dp"/>
</shape>

The resulting dialog has rounded corners inside a black 90 degree rectangle. I want to know how I can get rid of the ninety degree rectangle that remains and show nothing but the rounded rectangle.

It seems like the rectangle template stays behind after I curve the corners:

Here's a link to a picture of the dialog my code's producing: http://img577.imageshack.us/img577/8292/photoon20110912at2032.jpg

Write your constructor as:

public CustomDialog(Context context, int theme) { super(context, theme); getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT)); }

Try this:

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:shape="rectangle">
<solid android:color="#B7B7B7"/>
<corners android:bottomLeftRadius="8dip"
    android:bottomRightRadius="8dip"
    android:topLeftRadius="8dip"
    android:topRightRadius="8dip"/>
</shape>

This will give you the required rounded rectangle without background:

<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">

<gradient
    android:angle="270"/>
<stroke
    android:width="2dp"
    android:color="#FFF"/>
<corners
    android:radius="40dp"/>     

</shape>

UPDATE for future reference (it was added as comments)

Context mContext = getApplicationContext(); 
Dialog dialog = new Dialog(mContext,android.R.style.Theme_Translucent_NoTitleBar);
dialog.setContentView(R.layout.custom_dialog); dialog.show();

I was shocked when I occured the same problem, the solution is also a little weird. Create your own custom drawable for eg see below.

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <solid android:color="@color/text_highlight" />

    <stroke
        android:width="5dp"
        android:color="@color/text_highlight" />

    <corners android:radius="12dp" />

    <stroke
        android:width="1dp"
        android:color="@android:color/transparent" />

</shape>

Add the following lines to your dialog:

 dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);

 // This is line that does all the magic
 dialog.getWindow().setBackgroundDrawableResource(                             
 R.drawable.dialog_rounded);