How to pass an array of arrays to Java function?

Question

I want to create in JavaScript a

new android.content.res.ColorStateList(states,colors)

which is defined as

public ColorStateList (int[][] states, int[] colors)

I cannot figure out how to pass the int[][] states parameter.

I've tried:

A.

var states = [
    [android.R.attr.state_pressed],
    [android.R.attr.state_enabled],
];

result:

Error: Cannot marshal JavaScript argument 16842919,16842910 at index 0 to Java type.

(16842919,16842910 are the two constants in the array.)

B.

var states = Array(2);
states[0] = Array.create("int",1);
states[0][0] = android.R.attr.state_pressed;
states[1] = Array.create("int",1);
states[1][0] = android.R.attr.state_enabled;

result:

Cannot marshal JavaScript argument [I@8033d59,[I@1e86d1e at index 0 to Java type.

Florian Thuin · Accepted Answer · 2018-06-19 07:47:01Z

2

Did you try to use Array.create()? In the documentation, it says "Occasionally you have to create Java arrays from JavaScript. For this scenario we added method create to built-in JavaScript Array object."

This sentence describes what you are trying to do IMO.

answered Jun 19, 2018 at 7:47

Florian Thuin

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1 Comment

Gabriel Cséfalvay Over a year ago

Yes, after another hour of searching I found it, too. Thank you.

Gabriel Cséfalvay · Accepted Answer · 2018-06-19 08:13:42Z

0

This worked:

var states = Array.create("[I",2);
states[0] = Array.create("int",1);
states[0][0] = android.R.attr.state_pressed;
states[1] = Array.create("int",1);
states[1][0] = android.R.attr.state_enabled;

More info here: Java to JavaScript Conversion: Array

answered Jun 19, 2018 at 8:13

Gabriel Cséfalvay

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