BottomSheetDialogFragmentExample

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.twitter.bottomdialogfragmentexample">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar"
            android:windowSoftInputMode="adjustResize">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

MainActivity.java

package com.twitter.bottomdialogfragmentexample;

import android.app.Dialog;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomSheetBehavior;
import android.support.design.widget.BottomSheetDialogFragment;
import android.support.design.widget.CoordinatorLayout;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

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

        findViewById(R.id.launcher).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                final MyBottomSheet quickShareSheet = new MyBottomSheet();
                quickShareSheet.show(getSupportFragmentManager(), "bottom_sheet");
            }
        });
    }

    public static class MyBottomSheet extends BottomSheetDialogFragment {
        @NonNull
        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            final Dialog dialog = super.onCreateDialog(savedInstanceState);

            final View contentView = View.inflate(getContext(), R.layout.bottom_sheet, null);
            dialog.setContentView(contentView);

            final EditText editText = (EditText) contentView.findViewById(R.id.edit_text);
            editText.setText("A\nB\nC\nD\nE\nF\nG");

            final View parentView = (View) contentView.getParent();
            final CoordinatorLayout.LayoutParams parentParams =
                    (CoordinatorLayout.LayoutParams) parentView.getLayoutParams();
            parentParams.setBehavior(new QuickShareSheetBottomBehavior());

            return dialog;
        }

        private static class QuickShareSheetBottomBehavior extends BottomSheetBehavior {
            private QuickShareSheetBottomBehavior() {
                setState(BottomSheetBehavior.STATE_EXPANDED);
                setSkipCollapsed(true);
                setHideable(false);
            }
        }
    }
}