Tap the "allow" button while running an Android instrumental test using UIAutomator

PermissionGranter.java

package com.fewlaps.android.permissiongranter;

import android.app.Activity;
import android.content.pm.PackageManager;
import android.os.Build;
import android.support.test.uiautomator.UiDevice;
import android.support.test.uiautomator.UiObject;
import android.support.test.uiautomator.UiObjectNotFoundException;
import android.support.test.uiautomator.UiSelector;
import android.support.v4.content.ContextCompat;

import static android.support.test.InstrumentationRegistry.getInstrumentation;

public class PermissionGranter {

  private static final int PERMISSIONS_DIALOG_DELAY = 3000;
  private static final int GRANT_BUTTON_INDEX = 1;

  public static void allowPermissionsIfNeeded(String permissionNeeded) {
    try {
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !hasNeededPermission(permissionNeeded)) {
        sleep(PERMISSIONS_DIALOG_DELAY);
        UiDevice device = UiDevice.getInstance(getInstrumentation());
        UiObject allowPermissions = device.findObject(new UiSelector()
          .clickable(true)
          .checkable(false)
          .index(GRANT_BUTTON_INDEX));
        if (allowPermissions.exists()) {
          allowPermissions.click();
        }
      }
    } catch (UiObjectNotFoundException e) {
      System.out.println("There is no permissions dialog to interact with");
    }
  }

  private static boolean hasNeededPermission(String permissionNeeded) {
    Context context = InstrumentationRegistry.getTargetContext();
    int permissionStatus = ContextCompat.checkSelfPermission(context, permissionNeeded);
    return permissionStatus == PackageManager.PERMISSION_GRANTED;
  }

  private static void sleep(long millis) {
    try {
      Thread.sleep(millis);
    } catch (InterruptedException e) {
      throw new RuntimeException("Cannot execute Thread.sleep()");
    }
  }
}

WEP! Instead of copying this class, please, just use this project: https://github.com/SchibstedSpain/Barista it's easier to maintain it :·) By the way, this line is written there to fail the compilation. Feel free to remove the whole class and depend on Barista :·)

I'm not really sure what the use-case is for this. Is it to grant your tests permission before they run? If so, then the GrantPermissionRule would be a better option.

If this is intended to be used as part of tests, then I'd remove the try/catch block and hasNeededPermission check, as those are both going to result in false positives. Edit: And probably a lot of other code in this. Really, the upshot anything that would keep the test from failing if the button is not found should be removed.

Hey @inhaledesign! All this work is now part of Barista, a framework over Espresso to test Android apps in no time. Feel free to open the discussion there: https://github.com/AdevintaSpain/Barista

Thanks for your feedback, though!