![]() ![]() ![]() You can use these gradients in an XML drawable too (like in your 4th reference), with a limitation of using 3 colors maximum. I recommend trying these in an image editor first (all popular image editors have these tools), and you'll quickly get the idea of how they work. So the LinearGradient is Linear Gradient in Photoshop, RadialGradient is Radial Gradient, and SweepGradient is Angular Gradient, as described in your 3rd reference. String filename = Environment.getExternalStorageDirectory().getAbsolutePath() + parator + "test.png" Heart.offset(210, 0) // move the heart shape to the rightĬ.drawText("RadialGradient", 470, 190, paint) RadialGradient = new RadialGradient(550, 50, 100, colors, positions, ) ![]() Heart.offset(210, 0) // move the heart shape to the middleĬ.drawText("LinearGradient", 260, 190, paint) LinearGradient = new LinearGradient(250, 0, 350, 150, colors, positions, ) ![]() SweepGradient = new SweepGradient(50, 50, colors, positions) Ĭ.drawText("SweepGradient", 50, 190, paint) Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG) įloat positions = This image can be produced with this code: Bitmap test = Bitmap.createBitmap(640, 200, _8888) ītARGB(255, 24, 24, 24) The shape will be filled with colors and transitions between them, according to the kind of the gradient. You can set a Shader on a Paint object, and then draw any shape with that Paint. The Android API provides 3 different gradients: LinearGradient, RadialGradient and SweepGradient. The word gradient in this context (as in many graphics editors, including Photoshop) refers to a smooth transition between multiple colors, as opposed to using just a single color to fill an area. And please do provide the answers with some examples of usage of Sweep in cases other than Rings. But for me to work with Sweep Gradients or atleast know what they mean, the description has to come from somewhere. I know people may consider this as not really a technical question. Sweep deals with Center (again a strong reference towards the clock theory).The only thing I can think about for a difference between them is for the usage (like Rings). They are used for similar transactions as the Angular sweep (not sure about this one) which talks about transaction similar to sweep of a clock's hand.Sweep Gradient are mainly used for Rings.Others are similar or disparagingly brief.įew conclusions I have drawn so far (and maybe are wrong) : Java Android Program to Demonstrate Sweep Gradient in Android (Again works with Rings).Gradients in Photoshop (which talks about Angular Gradient which I think might be related to Sweep gradient).android create pie dount with gradient and similar Questions (most of them relate to Rings - for which sweep is used).Sweep Gradient on Android (which only mentions commands to use - which is of almost no worth since right now I have no clue what Sweep Gradient is!).The only few references I found (and they do not meet the criteria of coming even close to explaining it properly or comprehensively) are listed below : Did a quick search and found almost nothing about it!! I came across Sweep Gradient on Android and was intrigued if it could give me a better control over the Color spacing and transitions. ![]()
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