1 <!-- 2 Copyright (C) 2013 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 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 18 xmlns:tools="http://schemas.android.com/tools" 19 android:layout_width="match_parent" 20 android:layout_height="match_parent" 21 android:gravity="center_horizontal"> 22 <ScrollView 23 android:layout_width="match_parent" 24 android:layout_height="match_parent" 25 android:fillViewport="false"> 26 <RelativeLayout 27 android:layout_width="match_parent" 28 android:layout_height="match_parent" 29 android:paddingLeft="@dimen/activity_horizontal_margin" 30 android:paddingRight="@dimen/activity_horizontal_margin" 31 android:paddingTop="@dimen/activity_vertical_margin" 32 android:paddingBottom="@dimen/activity_vertical_margin" 33 tools:context=".MainActivity" 34 > 35 36 <!-- Notice the presence of nextFocusDown/nextFocusUp on the elements below. You can 37 also use nextFocusLeft/nextFocusRight. This tells the system in what order elements 38 should be navigated through. If not present, the system will make a guess based on 39 element location in the layout. --> 40 <TextView 41 android:layout_width="wrap_content" 42 android:layout_height="wrap_content" 43 android:text="Buttons" 44 android:id="@+id/buttonsLabel" 45 android:layout_alignParentTop="true" 46 android:layout_alignParentLeft="true" 47 android:nextFocusDown="@+id/composeButton"/> 48 49 <!-- This is a regular, text-based button. No contentDescription is needed, since the 50 text field sufficiently describes the action performed. --> 51 <Button 52 android:layout_width="wrap_content" 53 android:layout_height="wrap_content" 54 android:text="@string/composeButtonLabel" 55 android:id="@+id/composeButton" 56 android:layout_below="@+id/buttonsLabel" 57 android:layout_alignLeft="@+id/buttonsLabel" 58 android:nextFocusUp="@+id/buttonsLabel" 59 android:nextFocusDown="@+id/checkboxesLabel" 60 /> 61 62 <!-- The next two buttons are different types of image-based buttons. --> 63 64 <!-- BEGIN_INCLUDE (image_content_description) --> 65 <!-- Adding a contentDescription is needed for accessibility, since no text is present. 66 Since the contentDescription is read verbatim, you may want to be a bit more 67 descriptive than usual, such as adding "button" to the end of your description, if 68 appropriate. --> 69 <ImageButton 70 android:layout_width="wrap_content" 71 android:layout_height="wrap_content" 72 android:id="@+id/discardButton" 73 android:layout_alignTop="@+id/composeButton" 74 android:layout_toRightOf="@+id/composeButton" 75 android:src="@drawable/ic_action_discard" 76 android:layout_alignBottom="@+id/composeButton" 77 android:contentDescription="@string/discardButtonDescription" 78 android:scaleType="fitCenter" 79 android:nextFocusUp="@+id/buttonsLabel" 80 android:nextFocusDown="@+id/checkboxesLabel" 81 /> 82 <!-- END_INCLUDE (image_content_description) --> 83 84 <ImageButton 85 android:layout_width="wrap_content" 86 android:layout_height="wrap_content" 87 android:id="@+id/infoButton" 88 android:layout_alignTop="@+id/discardButton" 89 android:layout_toRightOf="@+id/discardButton" 90 android:src="@drawable/ic_action_info" 91 android:layout_alignBottom="@+id/discardButton" 92 android:layout_alignRight="@+id/hyperspaceCheckbox" 93 android:scaleType="fitCenter" 94 android:background="?android:selectableItemBackground" 95 android:padding="5dp" 96 android:contentDescription="@string/infoButtonDescription" 97 android:nextFocusUp="@+id/buttonsLabel" 98 android:nextFocusDown="@+id/checkboxesLabel" 99 /> 100 101 <TextView 102 android:layout_width="wrap_content" 103 android:layout_height="wrap_content" 104 android:text="@string/checkboxesLabel" 105 android:id="@+id/checkboxesLabel" 106 android:layout_below="@+id/composeButton" 107 android:layout_alignLeft="@+id/composeButton" 108 android:nextFocusUp="@+id/composeButton" 109 android:nextFocusDown="@+id/jetpackCheckbox" 110 /> 111 112 <!-- Like a text-based button, checkboxes with text will often work correctly as-is. 113 If your checkboxes do not have a text attribute, you will need to add a 114 contentDescriptoin. --> 115 <CheckBox 116 android:layout_width="wrap_content" 117 android:layout_height="wrap_content" 118 android:text="@string/jetpackCheckboxLabel" 119 android:id="@+id/jetpackCheckbox" 120 android:layout_below="@+id/checkboxesLabel" 121 android:layout_alignLeft="@+id/checkboxesLabel" 122 android:checked="false" 123 android:nextFocusUp="@+id/checkboxesLabel" 124 android:nextFocusDown="@+id/hyperspaceCheckbox" 125 /> 126 127 <CheckBox 128 android:layout_width="wrap_content" 129 android:layout_height="wrap_content" 130 android:text="@string/hyperspaceCheckboxLabel" 131 android:id="@+id/hyperspaceCheckbox" 132 android:layout_below="@+id/jetpackCheckbox" 133 android:layout_alignLeft="@+id/jetpackCheckbox" 134 android:checked="false" 135 android:nextFocusUp="@+id/jetpackCheckbox" 136 android:nextFocusDown="@+id/imagesAndTextLabel" 137 /> 138 139 <TextView 140 android:layout_width="wrap_content" 141 android:layout_height="wrap_content" 142 android:text="@string/imagesAndTextLabel" 143 android:id="@+id/imagesAndTextLabel" 144 android:layout_below="@+id/hyperspaceCheckbox" 145 android:layout_alignLeft="@+id/hyperspaceCheckbox" 146 android:nextFocusUp="@+id/hyperspaceCheckbox" 147 android:nextFocusDown="@+id/partlyCloudImage" 148 /> 149 150 <!-- Images should have a contentDescription if they convey any meaningful 151 information. Images that are purely decorative may not need a contentDescription, 152 however. --> 153 <ImageView 154 android:layout_width="wrap_content" 155 android:layout_height="wrap_content" 156 android:id="@+id/partlyCloudyImage" 157 android:layout_below="@+id/imagesAndTextLabel" 158 android:layout_alignLeft="@+id/imagesAndTextLabel" 159 android:src="@drawable/partly_cloudy" 160 android:contentDescription="@string/partlyCloudyDescription" 161 android:layout_alignRight="@+id/discardButton" 162 android:nextFocusUp="@+id/imagesAndTextLabel" 163 android:nextFocusDown="@+id/customViewLabel" 164 /> 165 166 <!-- TextViews are typically self describing, so do not need extra modifications. --> 167 <TextView 168 android:layout_width="wrap_content" 169 android:layout_height="wrap_content" 170 android:textAppearance="?android:attr/textAppearanceLarge" 171 android:text="@string/temperature" 172 android:textSize="60sp" 173 android:id="@+id/temperatureText" 174 android:layout_alignTop="@+id/partlyCloudyImage" 175 android:layout_toRightOf="@+id/partlyCloudyImage" 176 android:layout_alignBottom="@+id/partlyCloudyImage" 177 android:gravity="center_vertical" 178 android:nextFocusUp="@+id/imagesAndTextLabel" 179 android:nextFocusDown="@+id/customViewLabel" 180 /> 181 182 <TextView 183 android:layout_width="wrap_content" 184 android:layout_height="wrap_content" 185 android:text="@string/customViewLabel" 186 android:id="@+id/customViewLabel" 187 android:layout_below="@+id/partlyCloudyImage" 188 android:layout_alignLeft="@+id/partlyCloudyImage" 189 android:nextFocusUp="@+id/partlyCloudImage" 190 android:nextFocusDown="@+id/dialView" 191 /> 192 193 <!-- Custom views require additonal code changes. See DialView.java for more 194 details. --> 195 <com.example.android.basicaccessibility.DialView 196 android:layout_width="200dp" 197 android:layout_height="200dp" 198 android:id="@+id/dialView" 199 android:layout_below="@+id/customViewLabel" 200 android:layout_alignLeft="@+id/partlyCloudyImage" 201 android:nextFocusUp="@+id/customViewLabel" 202 /> 203 204 </RelativeLayout> 205 </ScrollView> 206 </LinearLayout> 207
