1/* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.example.android.support.design.widget; 18 19 20import android.os.Bundle; 21import android.support.annotation.NonNull; 22import android.support.annotation.Nullable; 23import android.support.design.widget.BottomSheetBehavior; 24import android.view.View; 25import android.widget.Button; 26 27import com.example.android.support.design.R; 28 29 30/** 31 * This demonstrates usage of {@link BottomSheetBehavior} with a FAB anchored to it. 32 */ 33public class BottomSheetWithFab extends BottomSheetUsageBase { 34 35 private Button mToggle; 36 37 private View.OnClickListener mOnClickListener = new View.OnClickListener() { 38 @Override 39 public void onClick(View v) { 40 if (v.getId() == R.id.toggle && mBehavior != null) { 41 mToggle.setEnabled(false); 42 if (mBehavior.getState() == BottomSheetBehavior.STATE_HIDDEN) { 43 mBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED); 44 } else { 45 mBehavior.setState(BottomSheetBehavior.STATE_HIDDEN); 46 } 47 } 48 } 49 }; 50 51 @Override 52 protected int getLayoutId() { 53 return R.layout.design_bottom_sheet_with_fab; 54 } 55 56 @Override 57 protected void onCreate(@Nullable Bundle savedInstanceState) { 58 super.onCreate(savedInstanceState); 59 mToggle = findViewById(R.id.toggle); 60 mToggle.setOnClickListener(mOnClickListener); 61 mBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() { 62 @Override 63 public void onStateChanged(@NonNull View bottomSheet, 64 @BottomSheetBehavior.State int newState) { 65 switch (newState) { 66 case BottomSheetBehavior.STATE_HIDDEN: 67 mToggle.setText(R.string.bottomsheet_show); 68 mToggle.setEnabled(true); 69 break; 70 case BottomSheetBehavior.STATE_EXPANDED: 71 case BottomSheetBehavior.STATE_COLLAPSED: 72 mToggle.setText(R.string.bottomsheet_hide); 73 mToggle.setEnabled(true); 74 break; 75 } 76 } 77 78 @Override 79 public void onSlide(@NonNull View bottomSheet, float slideOffset) { 80 } 81 }); 82 } 83 84} 85