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Android workshop part 2

Welcome!

Jim Clermonts |Electrical Engineer

Jimclermonts@gmail.com

@JimClermonts

Library | Inheritance | Lifecycle | Stack | Linking | Object | Listening | Interface | Strings | Intents

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Last week

Library | Inheritance | Lifecycle | Stack | Linking | Object | Listening | Interface | Strings | Intents

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Android & Java library

Library | Inheritance | Lifecycle | Stack | Linking | Object | Listening | Interface | Strings | Intents

4Library | Inheritance | Lifecycle | Stack | Linking | Object | Listening | Interface | Strings | Intents

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Inheritance

Super class

Sub class

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Library | Inheritance | Lifecycle | Stack | Linking | Object | Listening | Interface | Strings | Intents

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Android lifecycle

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StackingonCreate()

onPause()

onDestroy()

Library | Inheritance | Lifecycle | Stack | Linking | Object | Listening | Interface | Strings | Intents

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Identity.java

etUsername : EditText etPassword : EditTextbtnLogin : Button

identity.xml

usernameFieldpasswordFieldloginButton

Linking

Library | Inheritance | Lifecycle | Stack | Linking | Object | Listening | Interface | Strings | Intents

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Linking

Ctrl + Space:

Library | Inheritance | Lifecycle | Stack | Linking | Object | Listening | Interface | Strings | Intents

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Primitive vs Reference variables

ByteShortIntLongFloatDoubleBooleanchar

EditTextButtonAccountScannerEtc….

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Object

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Listening

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Listening

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Interface

<<Interface>>

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View class

Create OnClickListener Object

Listen on login button

Parameter is a OnClickListener Object!

Inherit the methods!

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Last step:

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Strings

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Intents

Library | Inheritance | Lifecycle | Stack | Linking | Object | Listening | Interface | Strings | Intents

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…0.0001% covered

“Workshop style” “Reference book”

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Library | Inheritance | Lifecycle | Stack | Linking | Object | Listening | Interface | Strings | Intents