Android Developer Mock Interview
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Question 25 of 30
What are some of the different launch modes in Android?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
Launch mode in the Android applications is what generates and activates new instances within its ask that originate in the activity. There are several different launch modes Android application developers can employ. You should be familiar with these and be able to describe them to the interviewer. When answering this type of technical question, you may want to provide examples to illustrate your answer.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"The three main launch modes Android applications use include Standard, SingleTopic, and SingleTask. Standard will generate a new instance of an activity in the original task. This allows me to create several instances of the same activity. SingleTopic is similar to Standard except if the application recognizes the previous instance of an activity, a new instance will not be created. Instead, the intent called by the activity will be passed to the 'onNewIntent' method. The final launch mode, SingleTask, pushes a new instance to the task as the root. For example, if the current stack of activities is A then B then C then D, and activity B is relaunched, SingleTask will create a launch mode leaving A and B and eliminating C and D."
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