1 /* 2 * Copyright (C) 2015 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.android.settingslib.drawer; 17 18 import android.graphics.drawable.Icon; 19 import android.view.LayoutInflater; 20 import android.view.View; 21 import android.view.ViewGroup; 22 import android.widget.BaseAdapter; 23 import android.widget.ImageView; 24 import android.widget.TextView; 25 26 import com.android.settingslib.R; 27 28 import java.util.ArrayList; 29 import java.util.List; 30 31 public class SettingsDrawerAdapter extends BaseAdapter { 32 33 private final ArrayList<Item> mItems = new ArrayList<>(); 34 private final SettingsDrawerActivity mActivity; 35 SettingsDrawerAdapter(SettingsDrawerActivity activity)36 public SettingsDrawerAdapter(SettingsDrawerActivity activity) { 37 mActivity = activity; 38 } 39 updateCategories()40 void updateCategories() { 41 List<DashboardCategory> categories = mActivity.getDashboardCategories(); 42 mItems.clear(); 43 // Spacer. 44 mItems.add(null); 45 Item tile = new Item(); 46 tile.label = mActivity.getString(R.string.home); 47 tile.icon = Icon.createWithResource(mActivity, R.drawable.home); 48 mItems.add(tile); 49 for (int i = 0; i < categories.size(); i++) { 50 Item category = new Item(); 51 category.icon = null; 52 DashboardCategory dashboardCategory = categories.get(i); 53 category.label = dashboardCategory.title; 54 mItems.add(category); 55 for (int j = 0; j < dashboardCategory.tiles.size(); j++) { 56 tile = new Item(); 57 Tile dashboardTile = dashboardCategory.tiles.get(j); 58 tile.label = dashboardTile.title; 59 tile.icon = dashboardTile.icon; 60 tile.tile = dashboardTile; 61 mItems.add(tile); 62 } 63 } 64 notifyDataSetChanged(); 65 } 66 getTile(int position)67 public Tile getTile(int position) { 68 return mItems.get(position) != null ? mItems.get(position).tile : null; 69 } 70 71 @Override getCount()72 public int getCount() { 73 return mItems.size(); 74 } 75 76 @Override getItem(int position)77 public Object getItem(int position) { 78 return mItems.get(position); 79 } 80 81 @Override getItemId(int position)82 public long getItemId(int position) { 83 return position; 84 } 85 86 @Override isEnabled(int position)87 public boolean isEnabled(int position) { 88 return mItems.get(position) != null && mItems.get(position).icon != null; 89 } 90 91 @Override getView(int position, View convertView, ViewGroup parent)92 public View getView(int position, View convertView, ViewGroup parent) { 93 Item item = mItems.get(position); 94 if (item == null) { 95 if (convertView == null || convertView.getId() != R.id.spacer) { 96 convertView = LayoutInflater.from(mActivity).inflate(R.layout.drawer_spacer, 97 parent, false); 98 } 99 return convertView; 100 } 101 if (convertView != null && convertView.getId() == R.id.spacer) { 102 convertView = null; 103 } 104 boolean isTile = item.icon != null; 105 if (convertView == null || (isTile != (convertView.getId() == R.id.tile_item))) { 106 convertView = LayoutInflater.from(mActivity).inflate(isTile ? R.layout.drawer_item 107 : R.layout.drawer_category, 108 parent, false); 109 } 110 if (isTile) { 111 ((ImageView) convertView.findViewById(android.R.id.icon)).setImageIcon(item.icon); 112 } 113 ((TextView) convertView.findViewById(android.R.id.title)).setText(item.label); 114 return convertView; 115 } 116 117 private static class Item { 118 public Icon icon; 119 public CharSequence label; 120 public Tile tile; 121 } 122 } 123