1 <!-- 2 Copyright 2012 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 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 18 android:id="@+id/container" 19 android:layout_width="match_parent" 20 android:layout_height="match_parent"> 21 22 <LinearLayout android:layout_width="match_parent" 23 android:layout_height="wrap_content" 24 android:orientation="vertical" 25 android:padding="16dp"> 26 27 <TextView style="?android:textAppearanceSmall" 28 android:layout_width="wrap_content" 29 android:layout_height="wrap_content" 30 android:text="@string/message_zoom_touch_expand" /> 31 32 <!-- This is an example layout containing thumbnail image buttons that, when pressed, 33 zoom in to show more detail. All of the zooming and animation logic is in 34 the ZoomActivity class. --> 35 <LinearLayout 36 android:layout_width="wrap_content" 37 android:layout_height="wrap_content" 38 android:layout_marginTop="16dp" 39 android:orientation="horizontal"> 40 41 <!-- These buttons don't have any decorations (3D bevel, etc.), but it's still 42 important to show feedback on touch or focus. The custom 43 "ToughHighlightImageButton" ImageButton subclass helps achieve this by drawing 44 the standard system "pressed" and "focused" overlay upon user interaction. --> 45 46 <com.example.android.animationsdemo.TouchHighlightImageButton 47 android:id="@+id/thumb_button_1" 48 android:layout_width="100dp" 49 android:layout_height="75dp" 50 android:layout_marginRight="1dp" 51 android:src="@drawable/thumb1" 52 android:scaleType="centerCrop" 53 android:contentDescription="@string/description_image_1" /> 54 55 <com.example.android.animationsdemo.TouchHighlightImageButton 56 android:id="@+id/thumb_button_2" 57 android:layout_width="100dp" 58 android:layout_height="75dp" 59 android:src="@drawable/thumb2" 60 android:scaleType="centerCrop" 61 android:contentDescription="@string/description_image_2" /> 62 63 </LinearLayout> 64 65 </LinearLayout> 66 67 <!-- This initially-hidden ImageView will hold the expanded/zoomed version of the 68 images above. Without transformations applied, it takes up the entire screen. 69 To achieve the "zoom" animation, this view's bounds are animated from the 70 bounds of the thumbnail buttons above, to its final laid-out bounds. The implementation 71 of this animation is in the ZoomActivity class. --> 72 <ImageView 73 android:id="@+id/expanded_image" 74 android:layout_width="match_parent" 75 android:layout_height="match_parent" 76 android:visibility="invisible" 77 android:contentDescription="@string/description_zoom_touch_close" /> 78 79 </FrameLayout> 80
