User custom dialog for spinner and make dialog.setCancelable(true) for outside click .
final Dialog dialog = new Dialog(activity);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setCancelable(true);
dialog.setContentView(R.layout.dialog);
<?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="This is spinner"
android:textColor="@android:color/white"
android:textSize="15dp"
android:textStyle="bold"/>
<Spinner
android:id="@+id/size_spinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:entries="@array/size_entries" />
</LinearLayout>
Create alert Dialog layout something like this
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="@+id/btn"
android:layout_width="match_parent"
android:text="Custom Alert Dialog"
android:layout_height="40dp">
</Button>
</LinearLayout>
and Add below code on your Activity class
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LayoutInflater inflate = LayoutInflater.from(this);
alertView = inflate.inflate(R.layout.your_alert_layout, null);
Button btn= (Button) alertView.findViewById(R.id.btn);
showDialog();
}
public void showDialog(){
Dialog alertDialog = new Dialog(RecognizeConceptsActivity.this);
alertDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
alertDialog.setContentView(alertView);
alertDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
alertDialog.show();
}
