Android Studio - Tabbed Activity

Tabbed Activity

Tabbed Activity è un tipo di progetto in cui è presente una barra con delle schede in modo da suddividere l'app in più sezioni.
Per passare da una scheda all'altra è sufficiente cliccare sul nome della scheda oppure trascinare lo schermo da destra verso sinistra o viceversa.

AndroidManifest.xml

	<?xml version="1.0" encoding="utf-8"?>
	<manifest xmlns:android="http://schemas.android.com/apk/res/android"
	package="com.dm.tutorialtabbedactivity">
	<application
	android:allowBackup="true"
	android:icon="@mipmap/ic_launcher"
	android:label="@string/app_name"
	android:roundIcon="@mipmap/ic_launcher_round"
	android:supportsRtl="true"
	android:theme="@style/AppTheme">
	<activity
	android:name=".MainActivity"
	android:label="@string/app_name"
	android:theme="@style/AppTheme.NoActionBar">
	<intent-filter>
	<action android:name="android.intent.action.MAIN"/>
	<category android:name="android.intent.category.LAUNCHER"/>
	</intent-filter>
	</activity>
	</application>
	</manifest>

view raw 10TA_AndroidManifest.xml hosted with ❤ by GitHub

fragment_main.xml

	<?xml version="1.0" encoding="utf-8"?>
	<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
	xmlns:app="http://schemas.android.com/apk/res-auto"
	xmlns:tools="http://schemas.android.com/tools"
	android:id="@+id/constraintLayout"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	tools:context=".ui.main.PlaceholderFragment">
	<TextView
	android:id="@+id/section_label"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	tools:layout_constraintTop_creator="1"
	android:layout_marginStart="@dimen/activity_horizontal_margin"
	android:layout_marginEnd="@dimen/activity_horizontal_margin"
	android:layout_marginTop="@dimen/activity_vertical_margin"
	android:layout_marginBottom="@dimen/activity_vertical_margin"
	tools:layout_constraintLeft_creator="1"
	app:layout_constraintLeft_toLeftOf="parent"
	app:layout_constraintTop_toTopOf="@+id/constraintLayout"/>
	</android.support.constraint.ConstraintLayout>

view raw 10TA_fragment_main.xml hosted with ❤ by GitHub

activity_main.xml

	<?xml version="1.0" encoding="utf-8"?>
	<android.support.design.widget.CoordinatorLayout
	xmlns:android="http://schemas.android.com/apk/res/android"
	xmlns:app="http://schemas.android.com/apk/res-auto"
	xmlns:tools="http://schemas.android.com/tools"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	tools:context=".MainActivity">
	<android.support.design.widget.AppBarLayout
	android:layout_height="wrap_content"
	android:layout_width="match_parent"
	android:theme="@style/AppTheme.AppBarOverlay">
	<TextView
	android:id="@+id/title"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:gravity="center"
	android:minHeight="?actionBarSize"
	android:padding="@dimen/appbar_padding"
	android:text="@string/app_name"
	android:textAppearance="@style/TextAppearance.Widget.AppCompat.Toolbar.Title"/>
	<android.support.design.widget.TabLayout
	android:id="@+id/tabs"
	android:layout_width="match_parent"
	android:layout_height="wrap_content"
	android:background="?attr/colorPrimary"/>
	</android.support.design.widget.AppBarLayout>
	<android.support.v4.view.ViewPager
	android:id="@+id/view_pager"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
	<android.support.design.widget.FloatingActionButton
	android:id="@+id/fab"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:layout_gravity="bottom|end"
	android:layout_margin="@dimen/fab_margin"
	app:srcCompat="@android:drawable/ic_dialog_email"/>
	</android.support.design.widget.CoordinatorLayout>

view raw 10TA_activity_main.xml hosted with ❤ by GitHub

MainActivity.kt

	package com.dm.tutorialtabbedactivity
	import android.os.Bundle
	import android.support.design.widget.FloatingActionButton
	import android.support.design.widget.Snackbar
	import android.support.design.widget.TabLayout
	import android.support.v4.view.ViewPager
	import android.support.v7.app.AppCompatActivity
	import android.view.Menu
	import android.view.MenuItem
	import com.dm.tutorialtabbedactivity.ui.main.SectionsPagerAdapter
	class MainActivity : AppCompatActivity() {
	override fun onCreate(savedInstanceState: Bundle?) {
	super.onCreate(savedInstanceState)
	setContentView(R.layout.activity_main)
	val sectionsPagerAdapter = SectionsPagerAdapter(this, supportFragmentManager)
	val viewPager: ViewPager = findViewById(R.id.view_pager)
	viewPager.adapter = sectionsPagerAdapter
	val tabs: TabLayout = findViewById(R.id.tabs)
	tabs.setupWithViewPager(viewPager)
	val fab: FloatingActionButton = findViewById(R.id.fab)
	fab.setOnClickListener { view ->
	Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
	.setAction("Action", null).show()
	}
	}
	}

view raw 10TA_MainActivity.kt hosted with ❤ by GitHub

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