How can I change default black dim background “color” (not the amount of dim) of Dialog?

Question

(This is a random image of showing a Dialog found on the Internet

Answer 1

This worked for me:

val dialog = AlertDialog.Builder(context)
                .setView(view)
                .setCancelable(true)
                .setPositiveButton(R.string.done_label, { dialog, _ -> dialog.dismiss() })
                .create()
        dialog.window.setDimAmount(0f)
        dialog.show()

dialog.window.setDimAmount(0f) is the key.

Answer 2

The following custom DatePickerDoalog class not only makes dim color customizable but also it makes dim appearing animated

/**
 * @author Taras Yurkiv @Devlight
 */
public class DatePickerDialogCustomDim extends DatePickerDialog {

    private final long animDuration = 100;
    private float dimAmount = 0.7f;

    private Drawable dimDrawable;
    private ViewGroup root;

    private OnDismissListener outsideDismissListener;

    private final OnDismissListener dismissListener = new OnDismissListener() {

        @Override
        public void onDismiss(DialogInterface dialog) {
            final ObjectAnimator animator = ObjectAnimator.ofPropertyValuesHolder(dimDrawable,
                    PropertyValuesHolder.ofInt("alpha", (int) (255 * dimAmount), 0));
            animator.setTarget(dimDrawable);
            animator.setDuration(animDuration);
            animator.addListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    ViewGroupOverlay overlay = root.getOverlay();
                    overlay.remove(dimDrawable);
                }
            });
            animator.start();
            if (outsideDismissListener != null)
                outsideDismissListener.onDismiss(dialog);
        }
    };


    @TargetApi(Build.VERSION_CODES.N)
    public DatePickerDialogCustomDim(@NonNull Context context) {
        this(context, 0);
    }

    @TargetApi(Build.VERSION_CODES.N)
    public DatePickerDialogCustomDim(@NonNull Context context, @StyleRes int themeResId) {
        this(context, themeResId, null, -1, -1, -1);
        init(context);
    }

    public DatePickerDialogCustomDim(@NonNull Context context,
                                     @Nullable OnDateSetListener listener,
                                     int year,
                                     int month,
                                     int dayOfMonth) {
        this(context, 0, listener, year, month, dayOfMonth);
    }

    public DatePickerDialogCustomDim(@NonNull Context context,
                                     @StyleRes int themeResId,
                                     @Nullable OnDateSetListener listener,
                                     int year,
                                     int monthOfYear,
                                     int dayOfMonth) {
        super(context, themeResId, listener, year, monthOfYear, dayOfMonth);
        init(context);
    }

    private void init(Context context) {
        root = ((Activity) context).getWindow().getDecorView().findViewById(android.R.id.content);
        super.setOnDismissListener(dismissListener);
    }

    public void setDimAmount(@FloatRange(from = 0, to = 1f) float dim) {
        dimAmount = dim;
    }

    @Override
    public void show() {
        super.show();
        dimDrawable = new ColorDrawable(Color.WHITE); // a dim color
        dimDrawable.setBounds(0, 0, root.getWidth(), root.getHeight());

        ViewGroupOverlay overlay = root.getOverlay();
        overlay.add(dimDrawable);

        ObjectAnimator animator = ObjectAnimator.ofPropertyValuesHolder(dimDrawable,
                PropertyValuesHolder.ofInt("alpha", 0, (int) (255 * dimAmount)));
        animator.setTarget(dimDrawable);
        animator.setDuration(animDuration);
        animator.start();
    }

    @Override
    public void setOnDismissListener(@Nullable OnDismissListener listener) {
        outsideDismissListener = listener;
    }
}

it works in conjunction of a style

<style name="DatePickerDialogTheme" parent="Theme.AppCompat.Light.Dialog">
    <item name="colorAccent">@color/accent</item>
    <item name="android:textColorLink">@color/primary</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:backgroundDimEnabled">false</item>
</style>

Answer 3

This is a workaround but it's not really a pure solution because background touch is disabled and should be configured manually.

First, set custom dialog theme like this.

styles.xml

<style name="CustomDialogTheme" parent="android:Theme.Dialog">
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowIsFloating">false</item>
    <item name="android:windowBackground">@android:color/transparent</item>
</style>

Setting windowIsFloating to false forces Dialog view to be expanded to full screen. Setting windowBackground to transparent removes default black dim background under Dialog. windowNoTitle option gets rid of the upper title bar.

CustomDialog.java

Apply the theme and construct your custom_dialog view as follows.

public HTCustomDialog(Context context) {
    super(context, R.style.CustomDialogTheme);
    setContentView(R.layout.custom_dialog);
}

custom_dialog.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/main_solid_80">

    <RelativeLayout
        android:id="@+id/dialog_root"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:layout_marginLeft="50dp"
        android:layout_marginRight="50dp"
        android:background="@drawable/bg_popup"
        android:padding="16dp">

</RelativeLayout>

Now that CustomDialog view is a full-screen view, set background of your root layout to whatever color you'd like.

Sample result

I mosaiced the result a bit.

Answer 4

try the code,

View checkBoxView = View.inflate(context, R.layout.alertbox, null);



    final AlertDialog.Builder builder = new AlertDialog.Builder(context);

             builder.setView(checkBoxView);
             builder.setCancelable(false);
                Dialog d = builder.create();

                d.getWindow().setBackgroundDrawable(new ColorDrawable(0));
                d.setView(checkBoxView, 0, 0, 0, 0);
                d.show();

nb: the line d.setView(checkBoxView, 0, 0, 0, 0); will make it...

Answer 5

Try to set the style for your dialog windows,

Example:

Dialog dialog = new Dialog(context,android.R.style.Theme_Translucent_NoTitleBar);

Answer 6

use custom style.

<style name="transparent_dialog_borderless" parent="android:Theme.Dialog">
    <item name="android:windowFrame">@null</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:background">#FF333333</item>
    <item name="android:windowBackground">@null</item>
    <item name="android:backgroundDimEnabled">true</item>
</style>

android:backgroundDimEnabled:control the black dim background