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Range alpha between 0 and 1 for android int color conversion #12210

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Jun 27, 2018

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@tobrun tobrun commented Jun 25, 2018

Closes #12198

@tobrun tobrun added the Android Mapbox Maps SDK for Android label Jun 25, 2018
@tobrun tobrun self-assigned this Jun 25, 2018
@tobrun tobrun requested a review from LukasPaczos June 25, 2018 11:38
@tobrun tobrun added this to the android-v6.2.1 milestone Jun 25, 2018
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Thanks for running with that! A couple of comments below. Also, updating raw test would be great.

*
* @param color Android color int
* @return String rgba color
*/
public static String colorToRgbaString(@ColorInt int color) {
return String.format(Locale.US, "rgba(%d, %d, %d, %d)",
(color >> 16) & 0xFF, (color >> 8) & 0xFF, color & 0xFF, (color >> 24) & 0xFF);
return String.format(Locale.US, "rgba(%d, %d, %d, %.1f)",
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I don't think precision to only one decimal point will be enough in this case. What about increasing this to 3?


@Test
public void testAlphaValueInStringConversion() {
String color = PropertyFactory.colorToRgbaString(Color.parseColor("#80FF0000")); // 50% alpha red
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Could you rewrite this test to include the issue mentioned above?

@tobrun tobrun force-pushed the tvn-color-conversion-fix branch 2 times, most recently from 10089d4 to 2c4ab75 Compare June 26, 2018 12:31
@Test
public void testAlphaValueInStringConversion() {
String color = PropertyFactory.colorToRgbaString(Color.parseColor("#80FF0000")); // 50% alpha red
String alpha = color.split(" ")[3].substring(0, 3);
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This test case doesn't really test the implementation as we are cutting off the number on the first decimal point.

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