Holo进度条发光效果 [英] Holo progressbar glow effect
问题描述
我使用画布来绘制我的自定义形状,我想添加发光效果在它的末端像在Android进度条视图。我尝试查看Android来源,但没有找到如何实现这样的效果。
I'm using canvas to draw my custom shape, and I want to add glow effect on it's end like in Android Progressbar View. I tried to look at Android sources, but did not found how exactly such effect is achieved.
推荐答案
发光效果是PNG图像的一部分, a href =https://github.com/android/platform_frameworks_base/blob/android-cts-4.2_r2/core/res/res/drawable-xhdpi/progress_primary_holo_light.9.png =nofollow>源文件。使用它(通过间接使用drawable / progress_horizontal_holo_light )作为 android:progressDrawable 。
The glow effect is part of the PNG image, see its source file. It is used (indirectly via drawable/progress_horizontal_holo_light) as value of android:progressDrawable.
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