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10,269 developer android interview questions shared by candidates

1.Given a string, write a function that return if it is Palindrome. This wasn't asked directly but from interviewer example i was need to understand that this function must ignore all spaces and special symbols. 2. Given an array, write a function that return true if any 3 elements of this array can sum to 0. My first solution was the simplest and far from best which result in O(n^3). Then interviewer asked me to improve to improve it to O(n^2). This give me a hint that i can use Hash to reduce complexity.
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Android Developer

Interviewed at Meta

3.7★
Jan 19, 2015

1.Given a string, write a function that return if it is Palindrome. This wasn't asked directly but from interviewer example i was need to understand that this function must ignore all spaces and special symbols. 2. Given an array, write a function that return true if any 3 elements of this array can sum to 0. My first solution was the simplest and far from best which result in O(n^3). Then interviewer asked me to improve to improve it to O(n^2). This give me a hint that i can use Hash to reduce complexity.

1.What is latest version of android and whats the new features for developer 2 .Difference bw paracables and serializable 3. what is build.gradle 4.how to switch bw fragment to activity 5. methods of adapter 6. what is request body parameter in network call 7. how we can do migration in room db
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Android Developer

Interviewed at Hidoc Dr

5★
Oct 14, 2019

1.What is latest version of android and whats the new features for developer 2 .Difference bw paracables and serializable 3. what is build.gradle 4.how to switch bw fragment to activity 5. methods of adapter 6. what is request body parameter in network call 7. how we can do migration in room db

Since i have a working experience of 1 year and 3 months, i was told to join as a Fresher, because i haven't worked professional working experience in Android Development. And for a fresher, salary is quite less as you can expect. But at the end of the day, you are getting paid while you are at learning stage. Should be enough for a fresher only.
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Android Developer

Interviewed at Mantra Labs

3.2★
Jul 11, 2015

Since i have a working experience of 1 year and 3 months, i was told to join as a Fresher, because i haven't worked professional working experience in Android Development. And for a fresher, salary is quite less as you can expect. But at the end of the day, you are getting paid while you are at learning stage. Should be enough for a fresher only.

Your photo-sharing app displays a system notification when the user receives a photo. Your app should display the photo when the user taps the notification. Which of the following do you need to attach to the Notification object that you pass to NotificationManager? A. An Activity reference B. A PendingIntent C. A BroadcastReceiver D. A Fragment transaction
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Android Developer

Interviewed at Meta

3.7★
May 1, 2015

Your photo-sharing app displays a system notification when the user receives a photo. Your app should display the photo when the user taps the notification. Which of the following do you need to attach to the Notification object that you pass to NotificationManager? A. An Activity reference B. A PendingIntent C. A BroadcastReceiver D. A Fragment transaction

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