How to navigate to the Message box in android device and launch the same

valid for android only. Google pageObject.

Notification object:

package com.xxxx.pages.android;

import com.xxxx.base.Page;
import io.appium.java_client.MobileBy;
import io.appium.java_client.MobileElement;
import io.appium.java_client.android.AndroidElement;
import io.appium.java_client.pagefactory.AndroidFindAll;
import io.appium.java_client.pagefactory.AndroidFindBy;
import io.appium.java_client.pagefactory.AndroidFindBys;
import org.openqa.selenium.WebDriver;

import java.util.List;

/**
* Created by Aleksei on 23/02/16.
*/
public class NativeNotificationPage extends Page {

@AndroidFindBy(id= "com.android.systemui:id/notification_panel")
private List<AndroidElement> notificationPanel;
//settings data
@AndroidFindAll({
        @AndroidFindBy(id = "com.android.systemui:id/clear_all_button"),
        @AndroidFindBy(id = "com.android.systemui:id/dismiss_text")
})
private List<AndroidElement> clearAllBtn;
//last items
@AndroidFindBy(id = "com.android.systemui:id/latestItems")
private List<AndroidElement> lastItemsContainer;
//events data
@AndroidFindBy(id = "android:id/status_bar_latest_event_content")
private List<AndroidElement> lastItemsContent;
@AndroidFindBy(id = "android:id/title")
private List<AndroidElement> itemTitle;
String itemTitle_Locator_Text = "android:id/title";
@AndroidFindBys({
        @AndroidFindBy (id = "android:id/big_text"),
        @AndroidFindBy (id = "android:id/text")
})
private List<AndroidElement> itemText;
String itemText_Phone_Locator_Text = "android:id/text";
String itemText_Tablet_Locator_Text = "android:id/big_text";
@AndroidFindBy(id = "android:id/time")
private List<AndroidElement> itemTime;


public NativeNotificationPage(WebDriver driver) {
    super(driver);
}

public boolean isNativeNotificationPage() {
    System.out.println("  check 'Notification' Screen loaded");
    boolean bool;
    setFastLookTiming();
    bool = !notificationPanel.isEmpty();
    setDefaultTiming();
    return bool;
}

public boolean isClearAllBtnLoaded() {
    System.out.println("  check 'Clear' button loaded");
    boolean bool;
    setLookTiming(3);
    bool = !clearAllBtn.isEmpty();
    setDefaultTiming();
    return bool;
}

public int getLastItemsContentSize() {return lastItemsContent.size();}

public String getItemTitle(int num) {
    try {
        return lastItemsContent.get(num).findElements(MobileBy.className("android.widget.TextView")).get(0).getText();
    } catch (Exception e) {
        return null;
    }
}

public String getItemText(int num) {
    //System.out.println(lastItemsContent.get(num).findElements(MobileBy.className("android.widget.TextView")).size());
    if (isPhone()) {
        List<MobileElement> item = lastItemsContent.get(num).findElements(MobileBy.className("android.widget.TextView"));
        String tmp = null;
        for (int i=1;i<item.size();i++) {
            if (tmp == null)
                tmp = item.get(i).getText();
            else
                tmp = tmp + "," +item.get(i).getText();
        }
        return tmp;
    } else {
        setLookTiming(3);
        if (lastItemsContent.get(num).findElements(MobileBy.id(itemText_Tablet_Locator_Text)).isEmpty()) {
            setDefaultTiming();
            return lastItemsContent.get(num).findElement(MobileBy.id(itemText_Phone_Locator_Text)).getText();
        } else {
            setDefaultTiming();
            return lastItemsContent.get(num).findElement(MobileBy.id(itemText_Tablet_Locator_Text)).getText();
        }
    }
}

public boolean tapClearAllBtn() {
    System.out.println("  tap 'Clear' button");
    try {
        return tapElement(clearAllBtn.get(0));
    } catch (Exception e) {
        return false;
    }
}

public boolean tapNotificationByNum(int num) {
    try {
        return tapElement(lastItemsContent.get(num));
    } catch (Exception e) {
        return false;
    }
}

}

clear all notification before:

public void clearNotifications_Android() {
    System.out.println("  clearNotifications_Android()");
    //clear all notifications
    ((AndroidDriver) driver).openNotifications();
    nativeNotificationPage = PageFactory.initElements(driver, NativeNotificationPage.class);
    assertTrue("Native notification page is NOT loaded", nativeNotificationPage.isNativeNotificationPage());
    if (nativeNotificationPage.isClearAllBtnLoaded()) {
        nativeNotificationPage.tapClearAllBtn();
    } else {
        tapBackKey((AndroidDriver)driver);
        sleep(1);
    }
    System.out.println("  notifications cleared");
}

get 6 digit SMS verification code from notification:

public String getSMSPhoneVerificationCodeByText_Android(String txt) {
        ((AndroidDriver) driver).openNotifications();
        sleep(1);
        nativeNotificationPage = PageFactory.initElements(driver, NativeNotificationPage.class);
        assertTrue("Native notification page is NOT loaded", nativeNotificationPage.isNativeNotificationPage());

        String verificationCode = null;
        int itemsListSize = nativeNotificationPage.getLastItemsContentSize();
        System.out.println("  number of notifications is: " + itemsListSize);
        assertTrue("Number of notifications is 0", itemsListSize != 0);
        String title, text;

        for (int i = 0; i < itemsListSize; i++) {
            title = nativeNotificationPage.getItemTitle(i);
            text = nativeNotificationPage.getItemText(i);
            System.out.println("   notification title is: " + title);
            System.out.println("   notification text is: " + text);
            if (text.contains(txt)) {
                //Integer.parseInt(text.substring(0,6).replaceAll("[\\D]", ""));
                //remove all non number chars
                List<String> textArrayIn = Arrays.asList(text.split(","));
                for (String textItem : textArrayIn) {
                    try {
                        System.out.println("textItem = "+textItem);
                        String tmp = textItem.replaceAll("[^0-9]+", "");
                        System.out.println("tmp_1 = "+tmp);
                        tmp = tmp.substring(tmp.length() - 6, tmp.length());
                        System.out.println("tmp_2 = "+tmp);
                        if (verificationCode == null)
                            verificationCode = tmp;
                        else
                            verificationCode = verificationCode + "," + tmp;
                    } catch (Exception e) {
                        //ignore.
                    }
                }
                System.out.println("   verification code is: " + verificationCode);
            }
        }

        //close notification
        if (verificationCode!=null && nativeNotificationPage.isClearAllBtnLoaded()) {
            nativeNotificationPage.tapClearAllBtn();
        } else {
            tapBackKey((AndroidDriver) driver);
        }
        sleep(1);

        return verificationCode;
    }

What is import com.xxxx.base.Page;

@dduphorn mine Page class which i extend with AndroidPage or iOSPage

Thanks, I figured it out. I don’t use page class, but I will look into it.

I was able to get the notification text using parts of your code. - android:id/big_text