我有BitmapDrawable
我在屏幕上绘制
我有4个搜索栏(对比度,亮度,色调,饱和度)
我改变了BitmapDrawable的对比度:
public void setContrast(float mAngle) {
ColorMatrix matrix = new ColorMatrix();
float contrast = mAngle / 180.f;
float scale = contrast + 1.f;
float translate = (-.5f * scale + .5f) * 255.f;
float[] cntr = new float[] { scale, 0, 0, 0, translate, 0, scale, 0, 0, translate, 0, 0,
scale, 0, translate, 0, 0, 0, 1, 0 };
matrix.set(cntr);
drawable.setColorFilter(new ColorMatrixColorFilter(matrix));
}
并改变BitmapDrawable的色调,如下所示:
public void setHue(float value {
ColorMatrix matrix = new ColorMatrix();
value = cleanValue(value, 180f) / 180f * (float) Math.PI;
if (value == 0) {
return;
}
float cosVal = (float) Math.cos(value);
float sinVal = (float) Math.sin(value);
float lumR = 0.213f;
float lumG = 0.715f;
float lumB = 0.072f;
float[] fmatrix = new float[] { lumR + cosVal * (1 - lumR) + sinVal * (-lumR),
lumG + cosVal * (-lumG) + sinVal * (-lumG),
lumB + cosVal * (-lumB) + sinVal * (1 - lumB), 0, 0,
lumR + cosVal * (-lumR) + sinVal * (0.143f),
lumG + cosVal * (1 - lumG) + sinVal * (0.140f),
lumB + cosVal * (-lumB) + sinVal * (-0.283f), 0, 0,
lumR + cosVal * (-lumR) + sinVal * (-(1 - lumR)),
lumG + cosVal * (-lumG) + sinVal * (lumG),
lumB + cosVal * (1 - lumB) + sinVal * (lumB), 0, 0, 0f, 0f, 0f, 1f, 0f, 0f, 0f, 0f,
0f, 1f };
matrix.postConcat(new ColorMatrix(fmatrix));
drawable.setColorFilter(new ColorMatrixColorFilter(matrix));
}
protected float cleanValue(float p_val, float p_limit) {
return Math.min(p_limit, Math.max(-p_limit, p_val));
}
他们工作正常,但我想一起工作,有办法吗?