try:
public boolean isSomeElementLoaded() {
PageFactory.initElements(new AppiumFieldDecorator(driver, 1, TimeUnit.SECONDS), this);
for (int i=0; i<60; i++) { //60x1 = 60sec
if (!driver.findElements(MobileBy.id("your_id")).isEmpty()) {
return true;
}
}
PageFactory.initElements(new AppiumFieldDecorator(driver, 10, TimeUnit.SECONDS), this); //where 10 is default waiting time
return false;
}