following link mentions that we can find element by giving id... but i am unable to find it.
https://github.com/appium/appium/blob/master/docs/en/writing-running-app
Here is the jave code with most common ways to locate elements using Appium
//Find element by id and enter Hello in Text box.
driver.findElementById("edit_name").sendKeys("Hello");
//Find element by class name and enter Hello in Text box.
driver.findElementByClassName("com.android.EditText").sendKeys("Hello");
//Find element by xpath and enter Hello in Text box.
driver.findElementByXPath("//cass[@value='Enter Name']").sendKeys("Hello");
//Find element by link text and enter Hello in Text box.
driver.findElementByLinkText("Enter Name").sendKeys("Hello");
If you want to learn more ways to find elements in appium for native and webviews VISIT HERE