How to remove fragment from backstack Android?

How to remove the default window frame for AlertDialog in Android?

• I use  final AlertDialog.Builder ab = new AlertDialog.Builder(mContext);    final AlertDialog aDialog = ab.create(); to create a AlertDialog in Android, but the dialog will shows a ugly black white frame on HTC G7. How do I remove this frame?

• Answer:

  I feel you can create your own custom dialog with your preferred layout. custom_dialog.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="80dp"     android:background="#3E80B4"     android:orientation="vertical" >     <TextView         android:id="@+id/txt_dia"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_gravity="center"         android:layout_margin="10dp"         android:text="Do you realy want to exit ?"         android:textColor="@android:color/white"         android:textSize="15dp"         android:textStyle="bold" >     </TextView>     <LinearLayout         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_gravity="center"         android:background="#3E80B4"         android:orientation="horizontal" >         <Button             android:id="@+id/btn_yes"             android:layout_width="100dp"             android:layout_height="30dp"             android:background="@android:color/white"             android:clickable="true"             android:text="Yes"             android:textColor="#5DBCD2"             android:textStyle="bold" />         <Button             android:id="@+id/btn_no"             android:layout_width="100dp"             android:layout_height="30dp"             android:layout_marginLeft="5dp"             android:background="@android:color/white"             android:clickable="true"             android:text="No"             android:textColor="#5DBCD2"             android:textStyle="bold" />     </LinearLayout> </LinearLayout> extends Dialog and implements OnClickListener public class CustomDialogClass extends Dialog implements     android.view.View.OnClickListener {   public Activity c;   public Dialog d;   public Button yes, no;   public CustomDialogClass(Activity a) {     super(a);     // TODO Auto-generated constructor stub     this.c = a;   }   @Override   protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     requestWindowFeature(Window.FEATURE_NO_TITLE);     setContentView(R.layout.custom_dialog);     yes = (Button) findViewById(http://R.id.btn_yes);     no = (Button) findViewById(http://R.id.btn_no);     yes.setOnClickListener(this);     no.setOnClickListener(this);   }   @Override   public void onClick(View v) {     switch (v.getId()) {     case http://R.id.btn_yes:       c.finish();       break;     case http://R.id.btn_no:       dismiss();       break;     default:       break;     }     dismiss();   } } How to Call CustomDialogClass cdd=new CustomDialogClass(Values.this); cdd.show(); This is simplest way to achieve your preferred dialog style