This is a android custom view , like a scratch card effect!
- 采纳DearZack童鞋的优化思路，把计算擦除面积比例的操作放在手指离开屏幕时，以降低对CPU的占用。
Gradle
dependencies {
compile 'com.clock.scratch:Scratch:1.0.0'
}
Maven
<dependency>
<groupId>com.clock.scratch</groupId>
<artifactId>Scratch</artifactId>
<version>1.0.0</version>
<type>pom</type>
</dependency>
- Create a contains of content view and ScratchView FrameLayout，let ScratchView displayed in the top.
<FrameLayoutandroid:layout_width="200dp"android:layout_height="200dp"android:layout_gravity="center_horizontal"android:layout_marginTop="8dp">
<!-- content view -->
<ImageViewandroid:layout_width="150dp"android:layout_height="150dp"android:layout_gravity="center"android:src="@mipmap/lufy" />
<!-- scratch view -->
<com.clock.scratch.ScratchView
android:id="@+id/scratch_view"android:layout_width="match_parent"android:layout_height="match_parent" />
</FrameLayout>
- Key Properties and Java API
| Properties | Java API |
|---|---|
| scratch:maskColor | setMaskColor(int color) |
| scratch:watermark | setWatermark(int resId) |
| scratch:eraseSize | setEraserSize(float eraserSize) |
| scratch:maxPercent | setMaxPercent(int max) |
More use , you need see the demo code...
Copyright 2016 D_clock爱吃葱花
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