104 lines
3.1 KiB
XML
104 lines
3.1 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Copyright 2013 The Android Open Source Project
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<sample>
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<name>ClippingBasic</name>
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<group>UI</group>
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<package>com.example.android.clippingbasic</package>
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<minSdk>21</minSdk>
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<strings>
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<intro>
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<![CDATA[
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Basic sample to demonstrate clipping on a View.
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]]>
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</intro>
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</strings>
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<template src="base"/>
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<template src="FragmentView"/>
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<common src="logger"/>
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<common src="activities"/>
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<metadata>
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<status>PUBLISHED</status>
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<categories>UI Views</categories>
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<technologies>Android</technologies>
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<languages>Java</languages>
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<solutions>Mobile</solutions>
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<level>BEGINNER</level>
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<icon>screenshots/web-icon.png</icon>
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<screenshots>
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<img>screenshots/screenshot-1.png</img>
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<img>screenshots/screenshot-2.png</img>
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</screenshots>
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<api_refs>
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<android>android.view.ViewOutlineProvider</android>
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</api_refs>
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<description>
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<![CDATA[
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A basic app showing how to clip on a View using [ViewOutlineProvider][1] interface,
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by which a View builds its outline, used for shadowing and clipping.
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]]>
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</description>
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<intro>
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<![CDATA[
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The [ViewOutlineProvider][1] interface offers you a method to populate the outline of a View.
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You need to implement a getOutline(android.view.View, android.graphics.Outline)
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method to clip a View in a specific shape.
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This example clips the outline of a View as a rounded rectangle by defining a class that
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implements ViewOutlineProvider by following code:
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```java
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private class ClipOutlineProvider extends ViewOutlineProvider {
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@Override
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public void getOutline(View view, Outline outline) {
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final int margin = Math.min(view.getWidth(), view.getHeight()) / 10;
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outline.setRoundRect(margin, margin, view.getWidth() - margin,
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view.getHeight() - margin, margin / 2);
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}
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}
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```
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To clip a View by the defined outline, setting a OutlineProvider to a View
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to be clipped is needed like following:
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```java
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final View clippedView = view.findViewById(R.id.frame);
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clippedView.setOutlineProvider(mOutlineProvider);
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```
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You can toggle if the View is clipped by calling [setClipToOutline(boolean)][2]
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like following code:
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```java
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clippedView.setClipToOutline(true); // Setting false disable clipping
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```
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[1]: https://developer.android.com/reference/android/view/ViewOutlineProvider.html
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[2]: https://developer.android.com/reference/android/view/View.html#setClipToOutline(boolean)
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]]>
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</intro>
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</metadata>
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</sample>
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