Android online training

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1.What is Android? It is an open-sourced operating system that's used totally on mobile devices, like cell phones and tablets. It’s a UNIX operating system kernel-based system that’s been equipped with made parts that permits developers to make and run apps which will perform each basic and advanced functions.

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2.Define Android Architecture? Android Architecture is formed of four key components:  UNIX operating system Kernel  Libraries  Android Framework Android Applications

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3.Define AAPT? AAPT is brief for Android asset Packaging Tool. This tool provides developers with the power to affect zip-compatible archives, which incorporates making, extracting still as viewing its contents.

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4.Describe Activities?. Activities are unit what you ask because the window to a computer programmer. Even as you produce windows so as to show output or to kindle associate degree input within the variety of dialog boxes, activities play constant role, thought it may not invariably be within the variety of a user interface.

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5.What are Intents? Intents displays notification messages to the user from inside the Android enabled device. It will be wont to alert the user of a specific state that occurred. Users will be created to retort to intents.

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6.What things area necessary in each Android project? These are unit the essential things that are present every time an Android project is created: – AndroidManifest.xml – build.xml – bin/ – src/ – res/ – assets/ . For Free Demo Ph:+1 (646) 880-9474 For Details : Folkstrain.com


7.Explain containers? Containers, because the name itself implies, holds objects and widgets along, betting on that specific things area unit required and in what explicit arrangement that's needed. Containers could hold labels, fields, buttons, or maybe kid containers, as examples.

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8.What is Orientation? Orientation, which might be set using setOrientation (), dictates if the Linear Layout is delineated as a row or as a column. Values area unit set as either HORIZONTAL or VERTICAL.

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9.What area unit the four essential states of an activity? – Active – if the activity is at the foreground – Paused – if the activity is at the background and still visible – Stopped – if the activity isn't visible and so is hidden or obscured by another activity – Destroyed – once the activity method is killed or completed terminated.

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10.Define ANR? ANR is brief for Application Not Responding. this is often really a dialog that seems to the user whenever application are unresponsive for an extended amount of your time.

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11What is ADP? Adb is brief for Android Debug Bridge. It permits developers the ability to execute remote shell commands. Its basic perform is to permit and management communication towards and from the somebody port.

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12.When Does ANR occur? The ANR dialog is exhibited to the user supported 2 potential conditions. One is once there's no response to an input event inside five seconds, and also the different is once a broadcast receiver isn't done executing within ten seconds.

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