Example usage for android.graphics Color alpha

Introduction

In this page you can find the example usage for android.graphics Color alpha.

Prototype

@IntRange(from = 0, to = 255)
public static int alpha(int color)

Source Link

Document

Return the alpha component of a color int.

Usage

From source file:Main.java

public static int darker(int color, float factor) {
    return Color.argb(Color.alpha(color), Math.max((int) (Color.red(color) * factor), 0),
            Math.max((int) (Color.green(color) * factor), 0), Math.max((int) (Color.blue(color) * factor), 0));
}

From source file:Main.java

public static int colorToColor(int i, int j, float f) {
    int k = Color.alpha(i);
    int l = Color.red(i);
    int i1 = Color.green(i);
    int j1 = Color.blue(i);
    int k1 = Color.alpha(j);
    int l1 = Color.red(j);
    int i2 = Color.green(j);
    int j2 = Color.blue(j);
    return Color.argb((int) (f * (float) k1 + (float) k * (1.0F - f)),
            (int) (f * (float) l1 + (float) l * (1.0F - f)), (int) (f * (float) i2 + (float) i1 * (1.0F - f)),
            (int) (f * (float) j2 + (float) j1 * (1.0F - f)));
}

From source file:Main.java

private static int blendColors(int i, int i2, float f) {
    float f2 = 1.0f - f;
    return Color.argb((int) ((((float) Color.alpha(i)) * f2) + (((float) Color.alpha(i2)) * f)),
            (int) ((((float) Color.red(i)) * f2) + (((float) Color.red(i2)) * f)),
            (int) ((((float) Color.green(i)) * f2) + (((float) Color.green(i2)) * f)),
            (int) ((f2 * ((float) Color.blue(i))) + (((float) Color.blue(i2)) * f)));
}

From source file:Main.java

public static int transformIfTooWhite(int color) {
    int alpha = Color.alpha(color);
    int red = Color.red(color);
    int green = Color.green(color);
    int blue = Color.blue(color);

    float whiteRatio = (red + green + blue) / 3f / 255f * (alpha / 255f);
    float transformRatio = 0.7f;
    if (whiteRatio > transformRatio) {
        red *= transformRatio;/*from w  w w.j a  v  a  2 s . co  m*/
        green *= transformRatio;
        blue *= transformRatio;
        color = Color.argb(alpha, red, green, blue);
    }
    return color;
}

From source file:Main.java

public static int interpolate(int c1, int c2, float f) {
    int alpha = (int) ((Color.alpha(c2) - Color.alpha(c1)) * f) + Color.alpha(c1);
    int red = (int) ((Color.red(c2) - Color.red(c1)) * f) + Color.red(c1);
    int green = (int) ((Color.green(c2) - Color.green(c1)) * f) + Color.green(c1);
    int blue = (int) ((Color.blue(c2) - Color.blue(c1)) * f) + Color.blue(c1);

    //Log.v("ColorHelper","alpha = "+alpha);
    return Color.argb(alpha, red, green, blue);
}

From source file:Main.java

public static int getColor(int baseColor, float alphaPercent) {
    int alpha = Math.round(Color.alpha(baseColor) * alphaPercent);

    return (baseColor & 0x00FFFFFF) | (alpha << 24);
}

From source file:Main.java

public static int getPrimaryDarkColor(int color) {
    double tran = 0.8;
    int a = Color.alpha(color);
    int r = Color.red(color);
    int g = Color.green(color);
    int b = Color.blue(color);
    return Color.argb(a, Math.max((int) (r * tran), 0), Math.max((int) (g * tran), 0),
            Math.max((int) (b * tran), 0));
}

From source file:Main.java

public static final String convertToColorCode(int color) {
    int alpha = Color.alpha(color);
    int red = Color.red(color);
    int green = Color.green(color);
    int blue = Color.blue(color);
    return String.format(Locale.getDefault(), "%02x%02x%02x%02x", alpha, red, green, blue);
}

From source file:Main.java

public static int getColor(int baseColor, float alphaPercent) {
    return (baseColor & 0x00FFFFFF) | (Math.round(Color.alpha(baseColor) * alphaPercent) << 24);
}

From source file:Main.java

public static int adjustAlpha(int color, @SuppressWarnings("SameParameterValue") float factor) {
    int alpha = Math.round(Color.alpha(color) * factor);
    int red = Color.red(color);
    int green = Color.green(color);
    int blue = Color.blue(color);
    return Color.argb(alpha, red, green, blue);
}