title: Can't click Allow button in permission dialog in Android using Appium
body: <p>I am unable to tap on Deny or Allow buttons on the permissions dialog in Android using Appium+Java. Do I need to add any capabilities before going to tap on those buttons?
  Below is the code:</p>
  
  <pre><code>DesiredCapabilities capabilities = new DesiredCapabilities();
  capabilities.setCapability("platformName", "Android");
  capabilities.setCapability("deviceName", "ASUS_Z00LD");
  capabilities.setCapability("platformVersion", "6.0");
  capabilities.setCapability("app","&lt;AppPath&gt;");
  capabilities.setCapability("browserName", "");
  AndroidDriver&lt;MobileElement&gt; driver = new AndroidDriver&lt;MobileElement&gt;(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
          Thread.sleep(10000);
  driver.findElement(MobileBy.id("permission_allow_button")).click();
  </code></pre>
  
  <p>Below is error in Eclipse console:</p>
  
  <pre><code>org.openqa.selenium.NoSuchElementException: An element could not be located on the page using the given search parameters. (WARNING: The server did not provide any stacktrace information)
  </code></pre>
  
  <p>Below is the Appium log:</p>
  
  <pre><code>info: [debug] Responding to client with success: {"status":0,"value":{"platform":"LINUX","browserName":"","platformVersion":"6.0.1","webStorageEnabled":false,"takesScreenshot":true,"javascriptEnabled":true,"databaseEnabled":false,"networkConnectionEnabled":true,"locationContextEnabled":false,"warnings":{},"desired":{"app":"/Users/Shiva/Documents/workspace/AndroidPractice/APK/****_Android.apk","browserName":"","platformName":"Android","deviceName":"ASUS_Z00LD","platformVersion":"6.0"},"app":"/Users/Shiva/Documents/workspace/AndroidPractice/APK/****_Android.apk","platformName":"Android","deviceName":"FAAZCY127084"},"sessionId":"b64fd5af-3de5-4299-a2d4-1948fc8e883e"}
  info: &lt;-- GET /wd/hub/session/b64fd5af-3de5-4299-a2d4-1948fc8e883e 200 1.534 ms - 625 {"status":0,"value":{"platform":"LINUX","browserName":"","platformVersion":"6.0.1","webStorageEnabled":false,"takesScreenshot":true,"javascriptEnabled":true,"databaseEnabled":false,"networkConnectionEnabled":true,"locationContextEnabled":false,"warnings":{},"desired":{"app":"/Users/Shiva/Documents/workspace/AndroidPractice/APK/****_Android.apk","browserName":"","platformName":"Android","deviceName":"ASUS_Z00LD","platformVersion":"6.0"},"app":"/Users/Shiva/Documents/workspace/AndroidPractice/APK/****_Android.apk","platformName":"Android","deviceName":"FAAZCY127084"},"sessionId":"b64fd5af-3de5-4299-a2d4-1948fc8e883e"}
  
  info: --&gt; POST /wd/hub/session/b64fd5af-3de5-4299-a2d4-1948fc8e883e/element {"using":"id","value":"permission_allow_button"}
  
  info: [debug] Waiting up to 0ms for condition
  
  info: [debug] Pushing command to appium work queue: ["find",{"strategy":"id","selector":"permission_allow_button","context":"","multiple":false}]
  info: [debug] [BOOTSTRAP] [debug] Got data from client: {"cmd":"action","action":"find","params":{"strategy":"id","selector":"permission_allow_button","context":"","multiple":false}}
  info: [debug] [BOOTSTRAP] [debug] Got command of type ACTION
  info: [debug] [BOOTSTRAP] [debug] Got command action: find
  info: [debug] [BOOTSTRAP] [debug] Finding permission_allow_button using ID with the contextId:  multiple: false
  info: [debug] [BOOTSTRAP] [debug] Using: UiSelector[INSTANCE=0, RESOURCE_ID=com.****.****:id/permission_allow_button]
  
  info: [debug] [BOOTSTRAP] [debug] Using: UiSelector[INSTANCE=0, RESOURCE_ID=android:id/permission_allow_button]
  
  info: [debug] [BOOTSTRAP] [debug] Using: UiSelector[DESCRIPTION=permission_allow_button, INSTANCE=0]
  
  info: [debug] [BOOTSTRAP] [debug] Failed to locate element. Clearing Accessibility cache and retrying.
  info: [debug] [BOOTSTRAP] [debug] Finding permission_allow_button using ID with the contextId:  multiple: false
  info: [debug] [BOOTSTRAP] [debug] Using: UiSelector[INSTANCE=0, RESOURCE_ID=com.****.****:id/permission_allow_button]
  
  info: [debug] [BOOTSTRAP] [debug] Using: UiSelector[INSTANCE=0, RESOURCE_ID=android:id/permission_allow_button]
  
  info: [debug] [BOOTSTRAP] [debug] Using: UiSelector[DESCRIPTION=permission_allow_button, INSTANCE=0]
  
  info: [debug] [BOOTSTRAP] [debug] Returning result: {"status":7,"value":"No element found"}
  
  info: [debug] Condition unmet after 178ms. Timing out.
  
  info: [debug] Responding to client with error: {"status":7,"value":{"message":"An element could not be located on the page using the given search parameters.","origValue":"No element found"},"sessionId":"b64fd5af-3de5-4299-a2d4-1948fc8e883e"}
  info: &lt;-- POST /wd/hub/session/b64fd5af-3de5-4299-a2d4-1948fc8e883e/element 500 181.769 ms - 195 
  </code></pre>
  
  <p>Anyone's help to overcome this would be appreciated?</p>