1 /* 2 * Copyright (C) 2020 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 17 package com.android.car.rotaryplayground; 18 19 import android.content.res.Resources; 20 import android.os.Bundle; 21 import android.util.Base64; 22 import android.util.Log; 23 import android.view.LayoutInflater; 24 import android.view.View; 25 import android.view.ViewGroup; 26 import android.webkit.WebView; 27 import android.widget.Button; 28 import android.widget.CheckBox; 29 30 import androidx.annotation.Nullable; 31 import androidx.fragment.app.Fragment; 32 33 import java.io.IOException; 34 import java.io.InputStream; 35 36 /** Fragment to demo a layout with a {@link WebView}. */ 37 public class WebViewFragment extends Fragment { 38 39 @Override onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)40 public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, 41 @Nullable Bundle savedInstanceState) { 42 View view = inflater.inflate(R.layout.rotary_web_view, container, false); 43 Button toggleButtonsButton = view.findViewById(R.id.toggle_buttons); 44 Button topButton = view.findViewById(R.id.top_button); 45 WebView webView = view.findViewById(R.id.web_view); 46 Button bottomButton = view.findViewById(R.id.bottom_button); 47 48 toggleButtonsButton.setOnClickListener(v -> { 49 int buttonVisibility = 50 topButton.getVisibility() == View.GONE ? View.VISIBLE : View.GONE; 51 topButton.setVisibility(buttonVisibility); 52 bottomButton.setVisibility(buttonVisibility); 53 }); 54 55 Resources res = getResources(); 56 InputStream inputStream = res.openRawResource(R.raw.web_view_html); 57 byte[] byteArray = new byte[0]; 58 try { 59 byteArray = new byte[inputStream.available()]; 60 inputStream.read(byteArray); 61 } catch (IOException e) { 62 Log.w("WebViewFragment", "Can't read HTML"); 63 } 64 String webViewHtml = new String(byteArray); 65 String encodedHtml = Base64.encodeToString(webViewHtml.getBytes(), Base64.NO_PADDING); 66 webView.loadData(encodedHtml, "text/html", "base64"); 67 return view; 68 } 69 } 70