Position of DialogFragment in Android

Question

I have a DialogFragment to show a View like a Popup screen. The Window appears always in the middle of the screen. Is there a way to set the position of the DialogFragment window? I have looked in to the source code but couldn't find anything yet.

Answer 1

Try something like this:

@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {     getDialog().getWindow().setGravity(Gravity.CENTER_HORIZONTAL | Gravity.TOP);     WindowManager.LayoutParams p = getDialog().getWindow().getAttributes();     p.width = ViewGroup.LayoutParams.MATCH_PARENT;     p.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE;     p.x = 200;     ...     getDialog().getWindow().setAttributes(p);     ... 

or other methods for getDialog().getWindow().

be sure to set the position after calling set-content.

Answer 2

Right, I banged head against wall for an hour or two with this, before finally getting DialogFragment positioned like I wanted.

I'm building on Steelight's answer here. This is the simplest, most reliable approach I found.

@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle b) {     Window window = getDialog().getWindow();      // set "origin" to top left corner, so to speak     window.setGravity(Gravity.TOP|Gravity.LEFT);      // after that, setting values for x and y works "naturally"     WindowManager.LayoutParams params = window.getAttributes();     params.x = 300;     params.y = 100;     window.setAttributes(params);      Log.d(TAG, String.format("Positioning DialogFragment to: x %d; y %d", params.x, params.y)); }  

Note that params.width and params.softInputMode (used in Steelight's answer) are irrelevant for this.

---

Below is a more complete example. What I really needed was to align a "confirm box" DialogFragment next to a "source" or "parent" View, in my case an ImageButton.

I chose to use DialogFragment, instead of any custom Fragment, because it gives you "dialog" features for free (close dialog when user clicks outside of it, etc).

^{Example ConfirmBox above its "source" ImageButton (trashcan)}

/**  * A custom DialogFragment that is positioned above given "source" component.  *  * @author Jonik, https://stackoverflow.com/a/20419231/56285  */ public class ConfirmBox extends DialogFragment {     private View source;      public ConfirmBox() {     }      public ConfirmBox(View source) {         this.source = source;                 }      public static ConfirmBox newInstance(View source) {         return new ConfirmBox(source);     }      @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);          setStyle(STYLE_NO_FRAME, R.style.Dialog);     }       @Override     public void onStart() {         super.onStart();          // Less dimmed background; see https://stackoverflow.com/q/13822842/56285         Window window = getDialog().getWindow();         WindowManager.LayoutParams params = window.getAttributes();         params.dimAmount = 0.2f; // dim only a little bit         window.setAttributes(params);          // Transparent background; see https://stackoverflow.com/q/15007272/56285         // (Needed to make dialog's alpha shadow look good)         window.setBackgroundDrawableResource(android.R.color.transparent);     }      @Override     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {         // Put your dialog layout in R.layout.view_confirm_box         View view = inflater.inflate(R.layout.view_confirm_box, container, false);          // Initialise what you need; set e.g. button texts and listeners, etc.          // ...          setDialogPosition();          return view;     }      /**      * Try to position this dialog next to "source" view      */     private void setDialogPosition() {         if (source == null) {             return; // Leave the dialog in default position         }          // Find out location of source component on screen         // see https://stackoverflow.com/a/6798093/56285         int[] location = new int[2];         source.getLocationOnScreen(location);         int sourceX = location[0];         int sourceY = location[1];          Window window = getDialog().getWindow();          // set "origin" to top left corner         window.setGravity(Gravity.TOP|Gravity.LEFT);          WindowManager.LayoutParams params = window.getAttributes();          // Just an example; edit to suit your needs.         params.x = sourceX - dpToPx(110); // about half of confirm button size left of source view         params.y = sourceY - dpToPx(80); // above source view          window.setAttributes(params);     }      public int dpToPx(float valueInDp) {         DisplayMetrics metrics = getActivity().getResources().getDisplayMetrics();         return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, valueInDp, metrics);     } } 

It's quite easy to make the above more general-use by adding constructor parameters or setters as necessary. (My final ConfirmBox has a styled button (inside some borders etc) whose text and View.OnClickListener can be customised in code.)