The Android Open Source Project | f805710 | 2009-03-15 16:47:16 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2008 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 android.widget.cts.util; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.view.Gravity; |
| 21 | import android.view.View; |
| 22 | import android.view.ViewGroup; |
| 23 | import android.widget.AbsListView; |
| 24 | import android.widget.Button; |
| 25 | import android.widget.LinearLayout; |
| 26 | import android.widget.TextView; |
| 27 | |
| 28 | /** |
| 29 | * Reusable methods for creating more complex list items. |
| 30 | */ |
| 31 | public class ListItemFactory { |
| 32 | |
| 33 | /** |
| 34 | * Create a view with a button at the top and bottom, with filler in between. |
| 35 | * The filler is sized to take up any space left over within desiredHeight. |
| 36 | * |
| 37 | * @param position The position within the list. |
| 38 | * @param context The context. |
| 39 | * @param desiredHeight The desired height of the entire view. |
| 40 | * @return The created view. |
| 41 | */ |
| 42 | public static View twoButtonsSeparatedByFiller(int position, Context context, int desiredHeight) { |
| 43 | if (desiredHeight < 90) { |
| 44 | throw new IllegalArgumentException("need at least 90 pixels of height " + |
| 45 | "to create the two buttons and leave 10 pixels for the filler"); |
| 46 | } |
| 47 | |
| 48 | final LinearLayout ll = new LinearLayout(context); |
| 49 | ll.setOrientation(LinearLayout.VERTICAL); |
| 50 | |
| 51 | final LinearLayout.LayoutParams buttonLp = |
| 52 | new LinearLayout.LayoutParams( |
| 53 | ViewGroup.LayoutParams.FILL_PARENT, |
| 54 | 50); |
| 55 | |
| 56 | final Button topButton = new Button(context); |
| 57 | topButton.setLayoutParams( |
| 58 | buttonLp); |
| 59 | topButton.setText("top (position " + position + ")"); |
| 60 | ll.addView(topButton); |
| 61 | |
| 62 | final TextView middleFiller = new TextView(context); |
| 63 | middleFiller.setLayoutParams(new LinearLayout.LayoutParams( |
| 64 | ViewGroup.LayoutParams.FILL_PARENT, |
| 65 | desiredHeight - 100)); |
| 66 | middleFiller.setText("filler"); |
| 67 | ll.addView(middleFiller); |
| 68 | |
| 69 | final Button bottomButton = new Button(context); |
| 70 | bottomButton.setLayoutParams(buttonLp); |
| 71 | bottomButton.setText("bottom (position " + position + ")"); |
| 72 | ll.addView(bottomButton); |
| 73 | ll.setTag("twoButtons"); |
| 74 | return ll; |
| 75 | } |
| 76 | |
| 77 | public enum Slot { |
| 78 | Left, |
| 79 | Middle, |
| 80 | Right |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Create a horizontal linear layout divided into thirds (with some margins |
| 85 | * separating the thirds), filled with buttons into some slots. |
| 86 | * @param context The context. |
| 87 | * @param desiredHeight The height of the LL. |
| 88 | * @param slots Which slots to fill with buttons. |
| 89 | * @return The linear layout. |
| 90 | */ |
| 91 | public static View horizontalButtonSlots(Context context, int desiredHeight, Slot... slots) { |
| 92 | |
| 93 | final LinearLayout ll = new LinearLayout(context); |
| 94 | ll.setOrientation(LinearLayout.HORIZONTAL); |
| 95 | |
| 96 | final LinearLayout.LayoutParams lp |
| 97 | = new LinearLayout.LayoutParams(0, desiredHeight); |
| 98 | lp.setMargins(10, 0, 10, 0); |
| 99 | lp.weight = 0.33f; |
| 100 | |
| 101 | boolean left = false; |
| 102 | boolean middle = false; |
| 103 | boolean right = false; |
| 104 | for (Slot slot : slots) { |
| 105 | switch (slot) { |
| 106 | case Left: |
| 107 | left = true; |
| 108 | break; |
| 109 | case Middle: |
| 110 | middle = true; |
| 111 | break; |
| 112 | case Right: |
| 113 | right = true; |
| 114 | break; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | if (left) { |
| 119 | final Button button = new Button(context); |
| 120 | button.setText("left"); |
| 121 | ll.addView(button, lp); |
| 122 | } else { |
| 123 | ll.addView(new View(context), lp); |
| 124 | } |
| 125 | |
| 126 | if (middle) { |
| 127 | final Button button = new Button(context); |
| 128 | button.setText("center"); |
| 129 | ll.addView(button, lp); |
| 130 | } else { |
| 131 | ll.addView(new View(context), lp); |
| 132 | } |
| 133 | |
| 134 | if (right) { |
| 135 | final Button button = new Button(context); |
| 136 | button.setText("right"); |
| 137 | ll.addView(button, lp); |
| 138 | } else { |
| 139 | ll.addView(new View(context), lp); |
| 140 | } |
| 141 | |
| 142 | return ll; |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * Create a button ready to be a list item. |
| 147 | * |
| 148 | * @param position The position within the list. |
| 149 | * @param context The context. |
| 150 | * @param text The text of the button |
| 151 | * @param desiredHeight The desired height of the button |
| 152 | * @return The created view. |
| 153 | */ |
| 154 | public static View button(int position, Context context, String text, int desiredHeight) { |
| 155 | TextView result = new Button(context); |
| 156 | result.setHeight(desiredHeight); |
| 157 | result.setText(text); |
| 158 | final ViewGroup.LayoutParams lp = new AbsListView.LayoutParams( |
| 159 | ViewGroup.LayoutParams.FILL_PARENT, |
| 160 | ViewGroup.LayoutParams.WRAP_CONTENT); |
| 161 | result.setLayoutParams(lp); |
| 162 | result.setId(position); |
| 163 | result.setTag("button"); |
| 164 | return result; |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * Convert an existing button view to display the data at a new position. |
| 169 | * |
| 170 | * @param convertView Non-null Button created by {@link #button} |
| 171 | * @param text The text of the button |
| 172 | * @param position The position withion the list |
| 173 | * @return The converted view |
| 174 | */ |
| 175 | public static View convertButton(View convertView, String text, int position) { |
| 176 | if (((String) convertView.getTag()).equals("button")) { |
| 177 | ((Button) convertView).setText(text); |
| 178 | convertView.setId(position); |
| 179 | return convertView; |
| 180 | } else { |
| 181 | return null; |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Create a text view ready to be a list item. |
| 187 | * |
| 188 | * @param position The position within the list. |
| 189 | * @param context The context. |
| 190 | * @param text The text to display |
| 191 | * @param desiredHeight The desired height of the text view |
| 192 | * @return The created view. |
| 193 | */ |
| 194 | public static View text(int position, Context context, String text, int desiredHeight) { |
| 195 | TextView result = new TextView(context); |
| 196 | result.setHeight(desiredHeight); |
| 197 | result.setText(text); |
| 198 | final ViewGroup.LayoutParams lp = new AbsListView.LayoutParams( |
| 199 | ViewGroup.LayoutParams.FILL_PARENT, |
| 200 | ViewGroup.LayoutParams.WRAP_CONTENT); |
| 201 | result.setLayoutParams(lp); |
| 202 | result.setId(position); |
| 203 | result.setTag("text"); |
| 204 | return result; |
| 205 | } |
| 206 | |
| 207 | /** |
| 208 | * Convert an existing text view to display the data at a new position. |
| 209 | * |
| 210 | * @param convertView Non-null TextView created by {@link #text} |
| 211 | * @param text The text to display |
| 212 | * @param position The position withion the list |
| 213 | * @return The converted view |
| 214 | */ |
| 215 | public static View convertText(View convertView, String text, int position) { |
| 216 | if(convertView.getTag() != null && ((String) convertView.getTag()).equals("text")) { |
| 217 | ((TextView) convertView).setText(text); |
| 218 | convertView.setId(position); |
| 219 | return convertView; |
| 220 | |
| 221 | } else { |
| 222 | return null; |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | /** |
| 227 | * Create a text view ready to be a list item. |
| 228 | * |
| 229 | * @param position The position within the list. |
| 230 | * @param context The context. |
| 231 | * @param text The text of the button |
| 232 | * @param desiredHeight The desired height of the button |
| 233 | * @return The created view. |
| 234 | */ |
| 235 | public static View doubleText(int position, Context context, String text, int desiredHeight) { |
| 236 | final LinearLayout ll = new LinearLayout(context); |
| 237 | ll.setOrientation(LinearLayout.HORIZONTAL); |
| 238 | |
| 239 | final AbsListView.LayoutParams lp = |
| 240 | new AbsListView.LayoutParams( |
| 241 | ViewGroup.LayoutParams.FILL_PARENT, |
| 242 | desiredHeight); |
| 243 | ll.setLayoutParams(lp); |
| 244 | ll.setId(position); |
| 245 | |
| 246 | TextView t1 = new TextView(context); |
| 247 | t1.setHeight(desiredHeight); |
| 248 | t1.setText(text); |
| 249 | t1.setGravity(Gravity.LEFT | Gravity.CENTER_VERTICAL); |
| 250 | final ViewGroup.LayoutParams lp1 = new LinearLayout.LayoutParams( |
| 251 | 0, |
| 252 | ViewGroup.LayoutParams.WRAP_CONTENT, 1.0f); |
| 253 | ll.addView(t1, lp1); |
| 254 | |
| 255 | TextView t2 = new TextView(context); |
| 256 | t2.setHeight(desiredHeight); |
| 257 | t2.setText(text); |
| 258 | t2.setGravity(Gravity.RIGHT | Gravity.CENTER_VERTICAL); |
| 259 | final ViewGroup.LayoutParams lp2 = new LinearLayout.LayoutParams( |
| 260 | 0, |
| 261 | ViewGroup.LayoutParams.WRAP_CONTENT, |
| 262 | 1.0f); |
| 263 | |
| 264 | ll.addView(t2, lp2); |
| 265 | ll.setTag("double"); |
| 266 | return ll; |
| 267 | } |
| 268 | |
| 269 | /** |
| 270 | * Convert an existing button view to display the data at a new position. |
| 271 | * |
| 272 | * @param convertView Non-null view created by {@link #doubleText} |
| 273 | * @param text The text of the button |
| 274 | * @param position The position withion the list |
| 275 | * @return The converted view |
| 276 | */ |
| 277 | public static View convertDoubleText(View convertView, String text, int position) { |
| 278 | if (((String) convertView.getTag()).equals("double")) { |
| 279 | TextView t1 = (TextView) ((LinearLayout) convertView).getChildAt(0); |
| 280 | TextView t2 = (TextView) ((LinearLayout) convertView).getChildAt(1); |
| 281 | t1.setText(text); |
| 282 | t2.setText(text); |
| 283 | convertView.setId(position); |
| 284 | return convertView; |
| 285 | } else { |
| 286 | return null; |
| 287 | } |
| 288 | } |
| 289 | } |