Android Studio - Settings Activity

Settings Activity

Settings Activity permette di aggiungere un layout in cui inserire le impostazioni della propria app.

Ecco come si presenta il file settings_activity.xml

	<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:layout_width="match_parent"
	android:layout_height="match_parent">
	<FrameLayout
	android:id="@+id/settings"
	android:layout_width="match_parent"
	android:layout_height="match_parent" />
	</LinearLayout>

view raw settings_activity1.xml hosted with ❤ by GitHub

Ecco come si presenta il file root_preferences.xml contenuto all'interno della cartella xml

	<PreferenceScreen xmlns:app="http://schemas.android.com/apk/res-auto">
	<PreferenceCategory app:title="@string/messages_header">
	<EditTextPreference
	app:key="signature"
	app:title="@string/signature_title"
	app:useSimpleSummaryProvider="true" />
	<ListPreference
	app:defaultValue="reply"
	app:entries="@array/reply_entries"
	app:entryValues="@array/reply_values"
	app:key="reply"
	app:title="@string/reply_title"
	app:useSimpleSummaryProvider="true" />
	</PreferenceCategory>
	<PreferenceCategory app:title="@string/sync_header">
	<SwitchPreferenceCompat
	app:key="sync"
	app:title="@string/sync_title" />
	<SwitchPreferenceCompat
	app:dependency="sync"
	app:key="attachment"
	app:summaryOff="@string/attachment_summary_off"
	app:summaryOn="@string/attachment_summary_on"
	app:title="@string/attachment_title" />
	</PreferenceCategory>
	</PreferenceScreen>

view raw root_preferences.xml hosted with ❤ by GitHub

Ecco come si presenta il file SettingsActivity.kt

	package com.dm.tutorialsettingactivity401
	import android.os.Bundle
	import androidx.appcompat.app.AppCompatActivity
	import androidx.preference.PreferenceFragmentCompat
	class SettingsActivity : AppCompatActivity() {
	override fun onCreate(savedInstanceState: Bundle?) {
	super.onCreate(savedInstanceState)
	setContentView(R.layout.settings_activity)
	supportFragmentManager
	.beginTransaction()
	.replace(R.id.settings, SettingsFragment())
	.commit()
	supportActionBar?.setDisplayHomeAsUpEnabled(true)
	}
	class SettingsFragment : PreferenceFragmentCompat() {
	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
	setPreferencesFromResource(R.xml.root_preferences, rootKey)
	}
	}
	}

view raw SettingsActivity1.kt hosted with ❤ by GitHub

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