Fill ArrayList with colors for Android

Question

I want to create 2 ArrayList. One holding 16 colors, the other one holding 139.

I have the list with colors (both RGB as 255,126,32 and Hex as 0xFFFF2552). I want to use

Answer 1

You could try:

int[] colors = new int[] {Color.rgb(1,1,1), Color.rgb(...)};

For example, but I don't think it's a good idea to decide only using "one line" argument.

List coloras = Arrays.asList(new Integer[]{Color.rgb(1, 1, 1), Color.rgb(...)});

Will also work.

You can create an arraylist in arrays.xml file:

            
        #ff0000
        #00ff00  
        #0000ff
    

Then use the loop to read them:

String[] colorsTxt = getApplicationContext().getResources().getStringArray(R.array.colors);
List colors = new ArrayList();
for (int i = 0; i < colorsTxt.length; i++) {
    int newColor = Color.parseColor(colorsTxt[i]);
    colors.add(newColor);
}

In my opinion keeping colors in the list is the most convinient solution.

To take a color from the list randomly, you do:

int rand = new Random().nextInt(colors.size());
Integer color = colors.get(rand);