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 package com.google.android.car.kitchensink.displayinfo; 17 18 import android.annotation.Nullable; 19 import android.app.ActivityManager; 20 import android.content.Context; 21 import android.content.pm.ConfigurationInfo; 22 import android.content.res.Resources; 23 import android.graphics.Point; 24 import android.os.Bundle; 25 import android.util.DisplayMetrics; 26 import android.view.LayoutInflater; 27 import android.view.View; 28 import android.view.ViewGroup; 29 import android.widget.LinearLayout; 30 import android.widget.TextView; 31 32 import androidx.fragment.app.Fragment; 33 34 import com.google.android.car.kitchensink.R; 35 36 /** 37 * Displays info about the display this is run on. 38 */ 39 public class DisplayInfoFragment extends Fragment { 40 41 private LinearLayout list; 42 43 @Nullable 44 @Override onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)45 public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, 46 @Nullable Bundle savedInstanceState) { 47 View view = inflater.inflate(R.layout.display_info, container, false); 48 49 list = (LinearLayout) view.findViewById(R.id.list); 50 51 return view; 52 } 53 54 @Override onStart()55 public void onStart() { 56 super.onStart(); 57 Point screenSize = new Point(); 58 getActivity().getWindowManager().getDefaultDisplay().getSize(screenSize); 59 addTextView("window size(px): " + screenSize.x + " x " + screenSize.y); 60 addTextView("display density(dpi): " + getResources().getDisplayMetrics().densityDpi); 61 addTextView("display default density(dpi): " 62 + getResources().getDisplayMetrics().DENSITY_DEFAULT); 63 64 addTextView("======================================"); 65 66 ActivityManager am = 67 (ActivityManager) getContext().getSystemService(Context.ACTIVITY_SERVICE); 68 ConfigurationInfo ci = am.getDeviceConfigurationInfo(); 69 addTextView("OpenGL ES version: " + ci.getGlEsVersion()); 70 71 addTextView("======================================"); 72 addTextView("All size are in DP."); 73 View rootView = getActivity().findViewById(android.R.id.content); 74 addTextView("view size: " 75 + convertPixelsToDp(rootView.getWidth(), getContext()) 76 + " x " + convertPixelsToDp(rootView.getHeight(), getContext())); 77 78 addTextView("window size: " 79 + convertPixelsToDp(screenSize.x, getContext()) 80 + " x " + convertPixelsToDp(screenSize.y, getContext())); 81 82 addDimenText("car_keyline_1"); 83 addDimenText("car_keyline_2"); 84 addDimenText("car_keyline_3"); 85 addDimenText("car_keyline_4"); 86 addDimenText("car_margin"); 87 addDimenText("car_gutter_size"); 88 addDimenText("car_primary_icon_size"); 89 addDimenText("car_secondary_icon_size"); 90 addDimenText("car_title_size"); 91 addDimenText("car_title2_size"); 92 addDimenText("car_headline1_size"); 93 addDimenText("car_headline2_size"); 94 addDimenText("car_headline3_size"); 95 addDimenText("car_headline4_size"); 96 addDimenText("car_body1_size"); 97 addDimenText("car_body2_size"); 98 addDimenText("car_body3_size"); 99 addDimenText("car_body4_size"); 100 addDimenText("car_body5_size"); 101 addDimenText("car_action1_size"); 102 addDimenText("car_touch_target_size"); 103 addDimenText("car_action_bar_height"); 104 } 105 addDimenText(String dimenName)106 private void addDimenText(String dimenName) { 107 String value; 108 try { 109 float dimen = convertPixelsToDp( 110 getResources().getDimensionPixelSize( 111 getResources().getIdentifier( 112 dimenName, "dimen", getContext().getPackageName())), 113 getContext()); 114 value = Float.toString(dimen); 115 } catch (Resources.NotFoundException e) { 116 value = "Resource Not Found"; 117 } 118 addTextView(dimenName + " : " + value); 119 } 120 addTextView(String text)121 private void addTextView(String text) { 122 TextView textView = new TextView(getContext()); 123 textView.setTextAppearance(R.style.TextAppearance_CarUi_Body2); 124 textView.setText(text); 125 list.addView(textView); 126 } 127 convertPixelsToDp(float px, Context context)128 private static float convertPixelsToDp(float px, Context context){ 129 Resources resources = context.getResources(); 130 DisplayMetrics metrics = resources.getDisplayMetrics(); 131 float dp = px / ((float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT); 132 return dp; 133 } 134 } 135