Android Bottom Sheet

     DESCRIPTION     

This tutorial is about:
 How to create bottom sheet using Fragment
 How to handle bottom sheet item/option clicks

     VIDEO     

     SOURCE CODE     

.

Step 1: Create a new project OR Open your project

Step 2: Add following library in build.gradle(Module:app) 

            implementation 'com.android.support:design:27.1.1'

Step 3: Create a fragment name it as "BootomSheetEx".

Step 4: Code

build.gradle(Module:app)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.blogspot.devofandroid.bottomsheet"
        minSdkVersion 16
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    //add design library to support Bottom Sheet
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    implementation 'com.android.support:support-v4:27.1.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

BootomSheetEx.java

package com.blogspot.devofandroid.bottomsheet;


import android.content.Context;
import android.os.Bundle;
import android.support.design.widget.BottomSheetDialogFragment;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;


/**
 * A simple {@link Fragment} subclass.
 */
public class BootomSheetEx extends BottomSheetDialogFragment {

    private BottomSheetListener mBottomSheetListener;


    public BootomSheetEx() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View v = inflater.inflate(R.layout.fragment_bootom_sheet_ex, container, false);

        TextView mCallTv = v.findViewById(R.id.callTv);
        TextView mSmsTv = v.findViewById(R.id.smsTv);
        TextView mBlockTv = v.findViewById(R.id.blockTv);
        //on click
        mCallTv.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mBottomSheetListener.onOptionClick("Call Clicked...");
                dismiss(); //hide bottom sheet when clicked
            }
        });
        mSmsTv.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mBottomSheetListener.onOptionClick("Send message Clicked...");
                dismiss(); //hide bottom sheet when clicked
            }
        });
        mBlockTv.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mBottomSheetListener.onOptionClick("Block number Clicked...");
                dismiss(); //hide bottom sheet when clicked
            }
        });

        return v;
    }

    public interface BottomSheetListener{
        void onOptionClick(String text);
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);

        try {
            mBottomSheetListener = (BottomSheetListener) context;
        }
        catch (ClassCastException e){
            throw  new ClassCastException(context.toString());
        }
    }
}

fragment_bootom_sheet_ex.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="5dp"
    tools:context=".BootomSheetEx">

    <TextView
        android:text="Choose Action..."
        style="@style/TextAppearance.AppCompat.Headline"
        android:textColor="#000"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/callTv"
        android:text="Call"
        android:textColor="#000"
        android:textSize="18sp"
        android:layout_marginLeft="5dp"
        android:drawableLeft="@drawable/call"
        android:drawablePadding="10dp"
        android:gravity="center_vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/smsTv"
        android:text="Send message"
        android:textColor="#000"
        android:textSize="18sp"
        android:layout_marginLeft="5dp"
        android:drawableLeft="@drawable/sms"
        android:drawablePadding="10dp"
        android:gravity="center_vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/blockTv"
        android:text="Block Number"
        android:textColor="#000"
        android:textSize="18sp"
        android:layout_marginLeft="5dp"
        android:drawableLeft="@drawable/block"
        android:drawablePadding="10dp"
        android:gravity="center_vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/text"
        style="@style/TextAppearance.AppCompat.Headline"
        android:layout_alignParentTop="true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="03012345678"
        android:textAlignment="center"/>

    <Button
        android:id="@+id/showBtnSheetBtn"
        android:text="Show Bottom Sheet"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        style="@style/Base.Widget.AppCompat.Button.Colored"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</RelativeLayout>

MainActivity.java

package com.blogspot.devofandroid.bottomsheet;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity implements BootomSheetEx.BottomSheetListener{

    TextView mTextView;
    Button mBtn;

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

        mTextView = findViewById(R.id.text);
        mBtn = findViewById(R.id.showBtnSheetBtn);
        mBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //show Bottom Sheet
                BootomSheetEx bottomSheet = new BootomSheetEx();
                bottomSheet.show(getSupportFragmentManager(), "BottomSheetEx");
            }
        });
    }

    @Override
    public void onOptionClick(String text) {
        //change text on click
        mTextView.setText(text);
    }
}

Step 5: Run Project:

Output: