How to make a dialog slide from bottom to middle of screen in android

I tried all the answers in here and it don't work for me. I know all that answers are written long time ago. So let me show how I get it to work. I followed this article.

In short : create res/anim/slide_up.xml

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate 
      android:duration="@android:integer/config_mediumAnimTime" 
      android:fromYDelta="100%" 
      android:interpolator="@android:anim/accelerate_interpolator" 
      android:toYDelta="0">
    </translate>
</set>

then, create res/anim/slide_bottom.xml

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate 
        android:duration="@android:integer/config_mediumAnimTime" 
        android:fromYDelta="0%p" 
        android:interpolator="@android:anim/accelerate_interpolator" 
        android:toYDelta="100%p">
    </translate>
</set>

Then add a style in res/values/styles.xml

<style name="DialogAnimation">
    <item name="android:windowEnterAnimation">@anim/slide_up_dialog</item>
    <item name="android:windowExitAnimation">@anim/slide_out_down</item>
</style>

Now you can set this animation style to your dialog or alertdialog box like below.

Dialog dialog = new Dialog(this);
dialog.getWindow().getAttributes().windowAnimations = animationSource;

Or,

Dialog dialog = new Dialog(this);
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.copyFrom(dialog.getWindow().getAttributes());
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
lp.gravity = Gravity.BOTTOM;
lp.windowAnimations = R.style.DialogAnimation;
dialog.getWindow().setAttributes(lp);

I showed example only for dialog boxes, but as I said before you can use this method for alert dialog boxes too.

You can use a Modal Bottom Sheet (reference).

Add the design support library

implementation "com.android.support:design:$version_support"

Create a Fragment that extends BottomSheetDialogFragment and override onCreateView

class BottomDialogFragment : BottomSheetDialogFragment() { 

    companion object {
        fun newInstance() = BottomDialogFragment()
    }

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        return inflater.inflate(R.layout.dialog_layout, container)
    }
}

Show the dialog

val dialog = BottomDialogFragment.newInstance()
dialog.show(supportFragmentManager, BottomDialogFragment::class.java.simpleName)

For this, you need 2 animations and put this in the res/anim folder

slide_up_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromYDelta="50%p" android:toYDelta="0%p"
    android:duration="@android:integer/config_longAnimTime"/>

2.slide_out_down.xml

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="@android:integer/config_longAnimTime"
    android:fromYDelta="0%p"
    android:toYDelta="100%p" />

Now you have to create a custom style in style.xml

<style name="DialogAnimation">
        <item name="android:windowEnterAnimation">@anim/slide_up_dialog</item>
        <item name="android:windowExitAnimation">@anim/slide_out_down</item>
</style>

Next is to extend the android Theme. Dialog theme in the same style.xml and give the reference to the custom style we created.

<!-- Animation for dialog box -->
    <style name="DialogSlideAnim" parent="@android:style/Theme.Dialog">
        <item name="android:windowAnimationStyle">@style/DialogAnimation</item>
    </style>

And finally, call this style when you create the dialog like this.

dialog = new Dialog(new ContextThemeWrapper(this, R.style.DialogSlideAnim));

yep...Now the Dialog is ready to slide.....!!

Update:

As @MichealP suggested, this will place the window at the bottom

getWindow().setGravity(Gravity.BOTTOM);

and modify the style to remove tittle and background

<item name="android:windowBackground">@null</item> 
<item name="android:windowFrame">@null</item> 
<item name="android:windowNoTitle">true</item>

As @sikni8 suggested this will make the black border transparent

getWindow().setBackgroundDrawableResource(android.R.color.transparent);

you can use bottom Sheets. I put some infromation about it.

With Android Support Library 23.2, Google announced support for Bottom Sheets. According to Material Design, Bottom Sheets are elements displayed only as a result of a user-initiated action, used to reveal more content.

There are two major types of bottom sheets:

Modal bottom sheets are alternatives to menus or simple dialogs. They can also present deep-linked content from other apps. They are primarily for mobile.

Persistent bottom sheets present in-app content

There is simple example

Making a BottomSheet on Android is quite easy, you just have to use a CoordinatorLayout as main element of your layout and attach a BottomSheet behavior to a view.

1 step - activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff">

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:popupTheme="@style/AppTheme.PopupOverlay" />

</android.support.design.widget.AppBarLayout>

<Button
    android:id="@+id/btnButtonSheet"
    android:text="Camera"
    android:textColor="#1e1e1e"
    android:layout_marginLeft="16dp"
    android:layout_marginRight="16dp"
    android:layout_marginBottom="8dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

<!-- Adding bottom sheet after main content -->
<include layout="@layout/bottom_sheet" />

</android.support.design.widget.CoordinatorLayout>

2 step - add bottom_sheet.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#fff"
android:orientation="vertical"
app:behavior_hideable="true"
app:behavior_peekHeight="0dp"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:layout_gravity="center_vertical">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Select your options!"
        android:gravity="center"
        android:textColor="#1e1e1e"
        android:textSize="16dp"
        android:layout_margin="8dp"
        android:textStyle="bold" />

</LinearLayout>
<Button
    android:id="@+id/btnPhoto"
    android:text="Photo"
    android:textColor="#1e1e1e"
    android:layout_marginLeft="16dp"
    android:layout_marginRight="16dp"
    android:layout_marginBottom="8dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

<Button
    android:id="@+id/btnCamera"
    android:text="Camera"
    android:textColor="#1e1e1e"
    android:layout_marginLeft="16dp"
    android:layout_marginRight="16dp"
    android:layout_marginBottom="8dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

<Button
    android:id="@+id/btnCancel"
    android:text="Cancel"
    android:background="#a2a2a3"
    android:textColor="#1e1e1e"
    android:layout_marginLeft="16dp"
    android:layout_marginRight="16dp"
    android:layout_marginBottom="8dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

</LinearLayout>

3 step - make your MainActivity like this:

public class MainActivity extends AppCompatActivity {

@BindView(R.id.btnButtonSheet)
Button btnBottomSheet;

@BindView(R.id.bottom_sheet)
LinearLayout layoutBottomSheet;

BottomSheetBehavior sheetBehavior;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ButterKnife.bind(this);

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    sheetBehavior = BottomSheetBehavior.from(layoutBottomSheet);


    sheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
        @Override
        public void onStateChanged(@NonNull View bottomSheet, int newState) {
            switch (newState) {
                case BottomSheetBehavior.STATE_HIDDEN:
                    break;
                case BottomSheetBehavior.STATE_EXPANDED: {
                    btnBottomSheet.setText("Close");
                }
                break;
                case BottomSheetBehavior.STATE_COLLAPSED: {
                    btnBottomSheet.setText("Expand");
                }
                break;
                case BottomSheetBehavior.STATE_DRAGGING:
                    break;
                case BottomSheetBehavior.STATE_SETTLING:
                    break;
            }
        }

        @Override
        public void onSlide(@NonNull View bottomSheet, float slideOffset) {

        }
    });
}

@OnClick(R.id.btnButtonSheet)
public void toggleBottomSheet() {
    if (sheetBehavior.getState() != BottomSheetBehavior.STATE_EXPANDED) {
        sheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
        btnBottomSheet.setText("Close Bottom sheet");
    } else {
        sheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
        btnBottomSheet.setText("Expand Bottom sheet");
    }
}
}

How to make a dialog slide from bottom to middle of screen in android

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Android

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