onLaunch() {
//底部导航栏(虚拟按键)背景颜色
var color = plus.android.newObject("android.graphics.Color")
var ac = plus.android.runtimeMainActivity();
var c2int = plus.android.invoke(color, "parseColor", "#161516");
console.log("c2int===" + JSON.stringify(c2int))
var win = plus.android.invoke(ac, "getWindow");
console.log("win===" + JSON.stringify(win))
plus.android.invoke(win, "setNavigationBarColor", c2int);
}